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Dynamic Tracing with GDB - Heinrich Hartmann
https://www.heinrichhartmann.com/blog/dynamic-tracing-with-gdb.html
c - How to use tracing in GDB - Stack Overflow
https://stackoverflow.com/questions/7174156/how-to-use-tracing-in-gdb
The tracepoint facility is currently available only for remote targets. See section Specifying a Debugging Target. In addition, your remote target must know how to collect trace data. This functionality is implemented in the remote stub; however, none of the stubs distributed with GDB support tracepoints as of this writing.
Linux Tools Project/GDB/User Guide - Eclipsepedia
https://wiki.eclipse.org/Linux_Tools_Project/GDB/User_Guide
Tracepoints (Debugging with GDB) - sourceware.org
https://sourceware.org/gdb/onlinedocs/gdb/Tracepoints.html
Using GDB’s trace and collect commands, you can specify locations in the program, called tracepoints, and arbitrary expressions to evaluate when those tracepoints are reached. Later, using the tfind command, you can examine the values those expressions had when the program hit the tracepoints.
GDB tracing: No current trace frame - Stack Overflow
https://stackoverflow.com/questions/16345958/gdb-tracing-no-current-trace-frame
(gdb) actions 1 Enter actions for tracepoint 1, one per line. End with a line saying just "end". >collect $regs,$args >end (gdb) tstart (gdb) c Continuing. Breakpoint 2, main () at test.c:9 9 return 0; (gdb) tstop (gdb) tdump warning: No current trace frame.
Backtrace (Debugging with GDB) - sourceware.org
https://sourceware.org/gdb/onlinedocs/gdb/Backtrace.html
When GDB finds the entry function in a backtrace it will terminate the backtrace, to avoid tracing into highly system-specific (and generally uninteresting) code. If you need to examine the startup code, or limit the number of levels in a backtrace, you can change this behavior: set backtrace past-main set backtrace past-main on
GDB Tutorial - cs.toronto.edu
https://www.cs.toronto.edu/~krueger/csc209h/tut/gdb_tutorial.html
Debugger is a good tool for tracing bugs. In this tutorial, we will show you how to use gdb -- a "GNU" debugger. Compiling programs to run with gdb: Below is a not-so-well written program which reads a number n from standard input, calculates the sum from 1 to n and prints out the result: 1 #include <stdio.h> ...
Attaching GDB to running processes - Defensive …
https://gjbex.github.io/DPD-online-book/BugsAtRuntime/Debuggers/Gdb/gdb_attach/
Process tracing will be allowed until the next reboot, or until you revert it manually by executing, again as root # echo 1 > /proc/sys/kernel/yama/ptrace_scope Permanently enabling process tracing for non-root users. On Ubuntu, edit the file /etc/sysctl.d/10-ptrace.conf. Its last line reads. kernel.yama.ptrace_scope = 1 This line should be changed to
How to Use strace to Trace System Calls and Signals
https://www.howtogeek.com/devops/how-to-use-strace-to-trace-system-calls-and-signals/
For example, in GDB, one could trace a program step by step (for example, one line of code at a time or a logical block of code—or by using breakpoints in the code). However, such steps are made during runtime, whereas strace simply runs the program as a whole until some error occurs or until completion.
Using GDB To Trace Into a Parallel Worker Spawned By …
https://www.highgo.ca/2021/07/09/using-gdb-to-trace-into-a-parallel-worker-spawned-by-postmaster-during-a-large-query/
Use the continue or c GDB command to continue to spawn the worker. Breakpoint 1, RegisterDynamicBackgroundWorker (worker=0x7ffd867f3c80, handle=0x55a009b77388) at bgworker.c:1002 1002 bool success = false; (gdb) c Continuing. As you continue the first GDB session, the second GDB session will pause due to receipt of a SIGUSR1 signal. This signal …
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