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From: Thamil K <thamilk@gmail.com>
To: gdb@sourceware.org
Subject: GDB Stacktrace for optimized code!
Date: Tue, 20 Apr 2021 11:25:18 +0530	[thread overview]
Message-ID: <CAOUPoJ1zoPjfxaCb_JYvOEz96xyFGcVRCshVQQh1e5ugY0md4w@mail.gmail.com> (raw)

Hi Geeks,

For programs compiled with -O2, where the compiler uses 'jmp' where
possible instead of 'call' or where callee doesn't push $rbp onto the
stack, gdb is still able to generate stack trace properly.  But by
inspecting the $rbp and return address, I am unable to trace back the
calls. I would like to know how gdb synthesises the stack trace ?  Any
pointers on documentation?   Thanks in advance.

Thanks
Thamil

             reply	other threads:[~2021-04-20  5:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20  5:55 Thamil K [this message]
2021-04-20 10:54 ` Hannes Domani

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