Hi guys,

The following patch improves the way GDB does fetch/store operations on
general-purpose and floating-point registers on the PowerPC
architecture. Basically, it uses the ptrace() options
PTRACE_{GET,SET}REGS, PTRACE_{GET,SET}FPREGS and PTRACE_{GET,SET}REGS64.

I've tested it running a regression test on various machines/kernel
combinations, and it does not cause any regression.

Comments, as always, are welcome.

Regards,

-- 
Sérgio Durigan Júnior
Linux on Power Toolchain - Software Engineer
Linux Technology Center - LTC
IBM Brazil


2008-10-07  Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>

	* configure.ac: Checking the existence of PTRACE_GETREGS,
	PTRACE_SETREGS, PTRACE_GETREGS64, PTRACE_SETREGS64,
	PTRACE_GETFPREGS and PTRACE_SETFPREGS in <asm/ptrace.h>.
	* ppc-linux-nat.c (fetch_gp_regs): New.
	(fetch_fp_regs): New.
	(fetch_ppc_registers): Using the new method to fetch general-
	purpose and floating-pointer registers.
	(store_gp_regs): New.
	(store_fp_regs): New.
	(store_ppc_registers): Using the new method to store general-
	purpose and floating-pointer registers.