How do I dump debug_loc section from an executable on Linux if default options (-g) are provided to GCC while compiling a C file? I use readelf linux utility.
GCC by default produces DWARF info in DWARF4 format, so if I pass -g-dwarf2 I can see .debug_loc section but how do inspect that section if info is generated with default options as I don't see the section in dump?
Do you use a recent version of binutils? On Ubuntu 14.04 I can build executable with "gcc -g test.c -o test".
With "readelf --debug-dump=info test" I can confirm it's using DWARF 4.
After that, you have (at least) two ways to dump the contents of .debug_line section.
readelf --debug-dump=decodedline test
This will dump decoded line number information. You get line==address mappings directly.
There is also:
readelf --debug-dump=rawline test
This gets you raw debug_line contents.