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Process Tracing Using Ptrace LG #81 - Linux Gazette
https://linuxgazette.net/issue81/sandeep.html
Process Tracing Using Ptrace - CodeAntenna
https://codeantenna.com/a/oKCIzbFc0C
ptrace () is a system call that enables one process to control the execution of another. It also enables a process to change the core image of another process. The traced process behaves normally until a signal is caught. When that occurs the process enters stopped state and informs the tracing process by a wait () call.
Tracing a process using ptrace on Android ARM64
https://stackoverflow.com/questions/39597719/tracing-a-process-using-ptrace-on-android-arm64
1 I'm experiencing an infinite loop trying to trace simple hello world using ptrace () on Android ARM64 emulator that emulates AARCH64. I'm not sure why it is not stopping. I'm trying to trace a hello world program and get all executed instructions but it seems that this condition never returns false: while (WIFSTOPPED (wait_status))
ptrace(2): process trace - Linux man page
https://linux.die.net/man/2/ptrace
Process Tracing Using Ptrace, part 2 LG #83
https://tldp.org/LDP/LG/issue83/sandeep.html
First we attach the process, and then read the register contents of the process. Now insert the code which we want to get executed in some location of the stack and the instruction pointer of the process is changed to that location. Finally we detach the process. Now the process starts to execute and will be executing the injected code.
Tracing tricks with ptrace - Pramode
https://www.pramode.net/articles/lfy/ptrace/pramode.html
The basic usage of `ptrace' can be summed up as follows: Parent process forks and execs the child; the child should express its willingness to be traced. Parent sends a signal to the child and waits for the child to stop. Once the child stops, the parent can manipulate it in different ways by invoking `ptrace' with several different `requests'.
Process Tracing Using Ptrace - Part III LG #85
https://tldp.org/LDP/LG/issue85/sandeep.html
So our last and final step is to detach the traced process. The program may be obtained from. Ptrace.cAlmost the whole code is self explaining. Compile it by typing #cc Ptrace.c -o symtrace Now we want to test the program. (Here my test program is emacsand the symbol I give is strcpy). you want to inspect.
man ptrace (2): process tracing and debugging
https://manpages.org/ptrace/2
It allows one process (the tracing process) to control another (the traced process). The tracing process must first attach to the traced process, and then issue a series of Fn ptrace system calls to control the execution of the process, as well as access process memory and register state.
ptrace - Wikipedia
https://en.wikipedia.org/wiki/Ptrace
ptrace is a system call found in Unix and several Unix-like operating systems.By using ptrace (the name is an abbreviation of "process trace") one process can control another, enabling the controller to inspect and manipulate the internal state of its target. ptrace is used by debuggers and other code-analysis tools, mostly as aids to software development.
Playing with ptrace, Part I | Linux Journal
https://www.linuxjournal.com/article/6100
Before running exec, the child calls ptrace with the first argument, equal to PTRACE_TRACEME. This tells the kernel that the process is being traced, and when the child executes the execve system call, it hands over control to its parent. The parent waits for notification from the kernel with a wait () call.
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