Re: [RFA] Simple patch for x86-64 (can go to 5.2?)

[Andrew Cagney <ac131313@cygnus.com>]

> This patch is a really simple one without any side-effects. The problem is, that gcc for x86-64 by default has -fomit-frame-pointer switched on when optimalization is requested. People don't know it and are complaining that (diplomaticaly said) "gdb doesn't work" (depending on their attitude :-). The only thing this patch does is, that it prints a note, when x86_64_skip_prologue doesn't see "push %rbp" as the very first instruction of a given function. The note is printed only once. That's all. I'd like to see it in 5.2 to teach people that they should explicitly use -fno-omit-frame-pointer when compiling a code for debugging. Can I commit? I'll remove this note as soon as I fix dwarf2 reader to handle even optimized code.
> 
> 2002-04-26  Michal Ludvig  <mludvig@suse.cz>
>      * x86-64-tdep.c (x86_64_skip_prologue): Print note when debugging
>      code without frame pointers.

Sigh (you've figured out the one thing that will make me delay a release :-)

Yes, I've committed it (can you please create a bug report explaining 
the warning message).

Andrew