Find executable that a core dump was generated against
See this question to get the git hash.
Then, change your build procedure (e.g. your Makefile) to include it. For instance, generate a one line C file with
git log --pretty=format:'const char program_git_hash[] = "%H";' \ -n 1 > _prog_hash.cthen link your program with _prog_hash.c and remove that file after linking.You could add timestamping information with e.g.
date +'const char program_timestamp="%c";%n' >> _prog_hash.cThen you could use gdb or strings on the binary executable to find it.
You may want to declare extern const char program_git_hash[]; in some header file, and perhaps display it (e.g. when passing the --version option to your program)