2010-08-30 Yao Qi <yao@codesourcery.com>

2010-08-30  Yao Qi  <yao@codesourcery.com>

	* arm-linux-tdep.c (arm_linux_sigreturn_return_addr): New.
	(arm_linux_syscall_next_pc): New.
	(arm_linux_copy_svc): Use arm_linux_sigreturn_return_addr instead.
	(arm_linux_init_abi): Initialize syscall_next_pc.
	* arm-tdep.c (thumb_get_next_pc_raw):  Get next pc of SWI in Thumb mode.
	(arm_get_next_pc_raw): Get next pc of SWI in ARM mode.
	* arm-tdep.h (struct gdbarch_tdep): Add a function pointer syscall_next_pc.
	Declare arm_frame_is_thumb.