gdb 7.0 on darwin 10

["Vincent Bénony" <vincent.benony@arobas-music.com>]

Hi there !

I'm pretty impressed by the new functionalities of GDB 7.0, which  
works pretty well on my Linux box. But, I've some problem with the  
darwin version.

I currently use an iMac under darwin 10 (Snow Leopard).

First of all, it seems that the dyld struct used by gdb to catch dylib  
loading have changed: the version number was 1 under darwin 9, and is  
now 7. So, commands like "info sharedlibrary" do not work unless I  
change the DYLD_VERSION macro definition in gdb/solib-darwin.c file.  
By the way, by changing the definition on DYLD_VERSION and by testing  
everywhere in the code that version is less or equal to 7, I finally  
got gdb reading symbols of my dylib files correctly !

But now, I've another problem: it seems that GDB do not handle  
coalesced sections, so symbols address are mostly wrong for functions  
defined in a header file. Did I missed something in arguments to give  
to configure script ?

I used :

./configure --disable-werror

I already tried "--host=i386-apple-darwin9 --build=i386-apple-darwin9  
--target=i386-apple-darwin9"

Note that I only want to debug 32 bits applications, so I do not used  
--enable-64-bit-bfd, but this switch do not change anything in MachO  
loading.

Thank you