Pedro Alves wrote:
> On Friday 05 June 2009 15:04:19, Aleksandar Ristovski wrote:
> 
>> What are the circumstances under which core_gdbarch would 
>> not be found? If we are opening a core from a system gdb was 
>> not configured for?
> 
> E.g., we still have targets using the deprecated_add_core_fns
> mechanism, and AFAICS, usually those don't usually install
> gdbarch sniffers for the core bfd's they handle.  E.g., 

Understood and agreed.

Here is a new patch. I made sure it works even if 
core_gdbarch is NULL. I also fixed my previous patch for 
target signal by checking if there is a core_gdbarch.

Thanks,

-- 
Aleksandar Ristovski
QNX Software Systems

Change log remained the same, but repeated for reference:

2009-06-05  Aleksandar Ristovski  <aristovski@qnx.com>

	* corelow.c (add_to_thread_list): Use new
	gdbarch_ptid_from_core_section_name.
	(get_core_register_section): Use new
	gdbarch_core_section_name_from_ptid.

	* gdbarch.sh (core_reg_section_encodes_pid): Deleted.
	(ptid_from_core_section_name)
	(core_section_name_from_ptid): New gdbarch callbacks.
	(default_ptid_from_core_section_name)
	(default_core_section_name_from_ptid): New functions.
	* gdbarch.h, gdbarch.c: Regenerate.

	* sol2-tdep.h (sol2_ptid_from_core_section_name)
	(sol2_core_section_name_from_ptid): New declarations.
	* sol2-tdep.c (sol2_ptid_from_core_section_name)
	(sol2_core_section_name_from_ptid): New functions.
	* amd64-sol2-tdep.c (amd64_sol2_init_abi): Register the two 
functions.
	* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Likewise.
	* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Likewise.
	* i386-sol2-tdep.c (i386_sol2_init_abi): Likewise.