MINOR: debug: add a new "debug dev sym" command in expert mode

This command attempts to resolve a pointer to a symbol name. This is
convenient during development as it's easier to get such pointers live
than by issuing a debugger or calling addr2line.

(cherry picked from commit 48129be18afd17688bced0bba8c0d98e2b85ef39)
[wt: backported as sometimes useful when debugging in field;
     s/_HA_ATOMIC_INC/_HA_ATOMIC_ADD(,1)/]
Signed-off-by: Willy Tarreau <w@1wt.eu>
1 file changed