Hi all; I filed this bug against GDB today: https://sourceware.org/bugzilla/show_bug.cgi?id=16280 It shows a trivially reproducible case for C++ on x86_64 where an inline variadic function seems to have incorrect debug information for the function prologue. This causes GDB to place the breakpoint incorrectly when I try to step into the function, or put a breakpoint on the function itself. In both cases the breakpoint is completely missed and the program runs to completion instead of stopping. I can reproduce this with both GCC 4.8.1 and 4.8.2, and GDB 7.6.0 and 7.6.1. It seems like it might be related to similar bugs filed with GCC before: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54533 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47471 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55586 There was a workaround added to GDB a while ago: https://sourceware.org/bugzilla/show_bug.cgi?id=12435 but it seems to not be complete, since I'm still seeing the same problem in this situation, and maybe shouldn't even be needed at all. Anyone have any thoughts about this one?
