Is it possible to save/dump core file using gdb? Sometimes I want to save file to analyze it later.
Answer
Issue the 'generate-core-file' command in gdb.
(gdb) help generate-core-file
Save a core file with the current state of the debugged process.
Argument is optional filename. Default filename is 'core.<process_id>'.
(gdb) break main
Breakpoint 1 at 0x400e0b: file utils/udec.c, line 36.
(gdb) r
Starting program: /home/nos/build/utils/udec
Breakpoint 1, main (argc=1, argv=0x7fffffffe9a8) at utils/udec.c:36
36 int fileargc = 1;
(gdb) generate-core-file
Saved corefile core.7336