2011-05-05 Jerome Guitton <guitton@adacore.com>

2011-05-05  Jerome Guitton  <guitton@adacore.com>

	* i386-tdep.c (i386_in_stack_tramp_p, i386_stack_tramp_frame_sniffer):
	New functions.
	(i386_stack_tramp_frame_unwind): New static global.
	(i386_match_pattern): New function, extracted from i386_match_insn.
	(i386_match_insn): Use i386_match_pattern.
	(i386_match_insn_block): New function.
	(i386_tramp_chain_in_reg_insns)
	(i386_tramp_chain_on_stack_insns): New static variables.
	(i386_gdbarch_init): Add i386_stack_tramp_frame_unwind to list
	of unwinders.