Run a program transparently, but print a stack trace if it fails

gdb -batch -ex "run" -ex "bt" ${my_program} 2>&1 | grep -v ^"No stack."$

For automated unit tests I wanted my program to run normally, but if it crashed, to add a stack trace to the output log. I came up with this command so I wouldn't have to mess around with core files. The one downside is that it does smoosh your program's stderr and stdout together.

Sample Output

Should be identical to what ${my_program} normally generates, unless ${my_program} crashes, in which case it ends with a stack trace.

By: kurt

2010-12-29 17:46:31

gdb grep gdb

2 Alternatives + Submit Alt

Print stack trace of a core file without needing to enter gdb interactively

This does almost the same thing as the original, but it runs the full backtrace for _all_ the threads, which is pretty important when reporting a crash for a multithreaded software, since more often than not, the signal handler is executed in a different thread than the crash happened.
This is sample output - yours may be different.
6

gdb --batch --quiet -ex "thread apply all bt full" -ex "quit" ${exe} ${corefile}

Flameeyes · 2010-07-06 14:49:03 12
Print stack trace of a core file without needing to enter gdb interactively

The pstack command prints a stack trace of running processes without needing to attach a debugger, but what about core files? The answer, of course, is to use this command. Usage: gdbbt program corefile
This is sample output - yours may be different.
3

alias gdbbt="gdb -q -n -ex bt -batch"

TeacherTiger · 2009-11-10 22:56:59 750

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