Stuff about GNU Debugger (AKA gdb).

 * [[http://devarea.com/10-things-you-can-only-do-with-gdb/|10 things you can only do with GDB]]
 * https://github.com/trstringer/cli-debugging-cheatsheets/blob/master/c.md

== Usage patterns ==

Run a program w/ arguments:

{{{#!highlight sh numbers=off
gdb --args ${PROGRAM_NAME} ${ARGUMENTS}
}}}

to automatically start debugging, put commands into a file, including breakpoints if you want them. E.g.:

{{{
breakpoint main.cpp:1
run
}}}

and then execute gdb with `-x`:

{{{#!highlight sh numbers=off
gdb -x ${COMMANDS_FILE} --args ${PROGRAM_NAME} ${ARGUMENTS}
}}}


== Quick reference ==

 * List all variables in current context: `info locals` if at a breakpoint, or `bt full` if at a breakpoint
 * `generate-core-file` to generate a coredump. Be aware of [[https://bugzilla.redhat.com/show_bug.cgi?id=1099405|this bug on RHEL 7.x]], for which the workaround is `info threads` before creating the coredump.