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