I'm trying to use gdb in postmortem mode with the core dump of a crashed process. I can get a stack trace, but instead of showing me the actual location in the offending function, gdb shows me the line number of a two-line inlined function that the offending function calls.
The inlined function is called many, many places; how do I find which call triggered the crash? How do I find the code immediately around the inlined function?
You can try setting OPTIMIZE to NO (eg. setenv OPTIMIZE NO) and rebuild the project: this tells compiler not optimize code, hence it may not inline function calls.
I assume that the "many many calls to the inlined function" are all happening from within a single "offending function" (otherwise your question doesn't make sense to me).
Your best bet is to note the IP address of the crash point in GDB, then use "objdump -dS ./a.out" and find that IP in the output.
Go to the stack frame in question, print the instruction point (e.g. p $rip), then use it to look it up manually with e.g. "addr2line -e -i 0x84564756".
This doesn't scale, but at least it works.