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Commit f74954f0 authored by Jan Beulich's avatar Jan Beulich Committed by Thomas Gleixner
Browse files

x86: Unwind-annotate thunk_32.S 



Signed-off-by: default avatarJan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/542291CA0200007800038085@mail.emea.novell.com


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 5f1d919a

arch/x86/lib/thunk_32.S

+15 −6
Original line number Diff line number Diff line
@@ -6,14 +6,19 @@ 
 */

	#include <linux/linkage.h>

	#include <asm/asm.h>

	#include <asm/dwarf2.h>



	/* put return address in eax (arg1) */

	.macro THUNK name, func, put_ret_addr_in_eax=0

	.globl \name

\name:

	pushl %eax

	pushl %ecx

	pushl %edx

	CFI_STARTPROC

	pushl_cfi %eax

	CFI_REL_OFFSET eax, 0

	pushl_cfi %ecx

	CFI_REL_OFFSET ecx, 0

	pushl_cfi %edx

	CFI_REL_OFFSET edx, 0



	.if \put_ret_addr_in_eax

	/* Place EIP in the arg1 */
@@ -21,10 +26,14 @@ 
	.endif



	call \func

	popl %edx

	popl %ecx

	popl %eax

	popl_cfi %edx

	CFI_RESTORE edx

	popl_cfi %ecx

	CFI_RESTORE ecx

	popl_cfi %eax

	CFI_RESTORE eax

	ret

	CFI_ENDPROC

	_ASM_NOKPROBE(\name)

	.endm