Gcc / gdb: How to insert an absolute path into the source file in debugging information?

Question

I'm just wondering if I can tell gcc to insert the absolute path to the source file in the debug information, even if I call gcc as

gcc -g ../src/somecode.c -o ../bin/somecode.o 

As I can see, atm, gcc just keeps what you provide, so if you provide a relative path, at the end gdb knows only the relative path.

Is there a way around this without using absolute paths when compiling? for example: let gcc look for the full path?

thanks in advance RTI

Answer 1

gcc -fdebug-prefix-map=..=$(readlink -f ..)

Answer 2

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-g .