2009-09-21 Hui Zhu <teawater@gmail.com>

2009-09-21  Hui Zhu  <teawater@gmail.com>
	    Michael Snyder  <msnyder@vmware.com>

	* i386-linux-tdep.c (i386_all_but_ip_registers_record): New
	function.
	(i386_linux_intx80_sysenter_record): Call
	i386_all_but_ip_registers_record if syscall is sys_sigreturn
	or sys_rt_sigreturn.
	(I386_LINUX_xstate, I386_LINUX_frame_size): New macros.
	(i386_linux_record_signal): New function.
	(i386_linux_init_abi): Call set_gdbarch_process_record_signal.