A Manual Backtrace in gdb: Rebuilding the Call Chain Yourself

Type bt in gdb and the call stack appears, but how does gdb read it? This topic climbs the frame-pointer chain, the unwind tables, and symbol recovery by hand. With the tool's mechanism taken apart, you can compute every frame address at a crash scene yourself.

STARTFINISHbt's Normal Output and a Manual Backtrace Along the rbp Chain→STARTFINISHFrame Pointer Omitted, Symbols Stripped: Unwind Tables and addr2line→STARTFINISHInlining and Crash Forensics: Three Layers, Each Covering Its Own Stretch→