1/*
2 * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)
3 * Copyright 2008 by Steven Rostedt, Red Hat, Inc
4 *  (inspired by Andi Kleen's thunk_64.S)
5 * Subject to the GNU public license, v.2. No warranty of any kind.
6 */
7	#include <linux/linkage.h>
8	#include <asm/asm.h>
9	#include <asm/dwarf2.h>
10
11	/* put return address in eax (arg1) */
12	.macro THUNK name, func, put_ret_addr_in_eax=0
13	.globl \name
14\name:
15	CFI_STARTPROC
16	pushl_cfi_reg eax
17	pushl_cfi_reg ecx
18	pushl_cfi_reg edx
19
20	.if \put_ret_addr_in_eax
21	/* Place EIP in the arg1 */
22	movl 3*4(%esp), %eax
23	.endif
24
25	call \func
26	popl_cfi_reg edx
27	popl_cfi_reg ecx
28	popl_cfi_reg eax
29	ret
30	CFI_ENDPROC
31	_ASM_NOKPROBE(\name)
32	.endm
33
34#ifdef CONFIG_TRACE_IRQFLAGS
35	THUNK trace_hardirqs_on_thunk,trace_hardirqs_on_caller,1
36	THUNK trace_hardirqs_off_thunk,trace_hardirqs_off_caller,1
37#endif
38
39#ifdef CONFIG_PREEMPT
40	THUNK ___preempt_schedule, preempt_schedule
41#ifdef CONFIG_CONTEXT_TRACKING
42	THUNK ___preempt_schedule_context, preempt_schedule_context
43#endif
44#endif
45
46