Blame - compiler-rt/lib/tsan/rtl/tsan_rtl_amd64.S - toolchain/llvm-project

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Alexey Samsonov	58e44a3	2013-12-05 10:40:11 +0000	[diff] [blame]	1	#include "sanitizer_common/sanitizer_asm.h"
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	2	.section .text
				3
Dmitry Vyukov	20678e2	2012-11-26 14:20:26 +0000	[diff] [blame]	4	.hidden __tsan_trace_switch
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	5	.globl __tsan_trace_switch_thunk
				6	__tsan_trace_switch_thunk:
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	7	CFI_STARTPROC
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	8	# Save scratch registers.
				9	push %rax
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	10	CFI_ADJUST_CFA_OFFSET(8)
				11	CFI_REL_OFFSET(%rax, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	12	push %rcx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	13	CFI_ADJUST_CFA_OFFSET(8)
				14	CFI_REL_OFFSET(%rcx, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	15	push %rdx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	16	CFI_ADJUST_CFA_OFFSET(8)
				17	CFI_REL_OFFSET(%rdx, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	18	push %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	19	CFI_ADJUST_CFA_OFFSET(8)
				20	CFI_REL_OFFSET(%rsi, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	21	push %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	22	CFI_ADJUST_CFA_OFFSET(8)
				23	CFI_REL_OFFSET(%rdi, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	24	push %r8
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	25	CFI_ADJUST_CFA_OFFSET(8)
				26	CFI_REL_OFFSET(%r8, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	27	push %r9
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	28	CFI_ADJUST_CFA_OFFSET(8)
				29	CFI_REL_OFFSET(%r9, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	30	push %r10
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	31	CFI_ADJUST_CFA_OFFSET(8)
				32	CFI_REL_OFFSET(%r10, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	33	push %r11
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	34	CFI_ADJUST_CFA_OFFSET(8)
				35	CFI_REL_OFFSET(%r11, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	36	# Align stack frame.
				37	push %rbx # non-scratch
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	38	CFI_ADJUST_CFA_OFFSET(8)
				39	CFI_REL_OFFSET(%rbx, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	40	mov %rsp, %rbx # save current rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	41	CFI_DEF_CFA_REGISTER(%rbx)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	42	shr $4, %rsp # clear 4 lsb, align to 16
				43	shl $4, %rsp
				44
				45	call __tsan_trace_switch
				46
				47	# Unalign stack frame back.
				48	mov %rbx, %rsp # restore the original rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	49	CFI_DEF_CFA_REGISTER(%rsp)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	50	pop %rbx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	51	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	52	# Restore scratch registers.
				53	pop %r11
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	54	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	55	pop %r10
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	56	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	57	pop %r9
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	58	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	59	pop %r8
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	60	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	61	pop %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	62	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	63	pop %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	64	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	65	pop %rdx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	66	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	67	pop %rcx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	68	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	69	pop %rax
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	70	CFI_ADJUST_CFA_OFFSET(-8)
				71	CFI_RESTORE(%rax)
				72	CFI_RESTORE(%rbx)
				73	CFI_RESTORE(%rcx)
				74	CFI_RESTORE(%rdx)
				75	CFI_RESTORE(%rsi)
				76	CFI_RESTORE(%rdi)
				77	CFI_RESTORE(%r8)
				78	CFI_RESTORE(%r9)
				79	CFI_RESTORE(%r10)
				80	CFI_RESTORE(%r11)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	81	ret
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	82	CFI_ENDPROC
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	83
Dmitry Vyukov	20678e2	2012-11-26 14:20:26 +0000	[diff] [blame]	84	.hidden __tsan_report_race
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	85	.globl __tsan_report_race_thunk
				86	__tsan_report_race_thunk:
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	87	CFI_STARTPROC
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	88	# Save scratch registers.
				89	push %rax
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	90	CFI_ADJUST_CFA_OFFSET(8)
				91	CFI_REL_OFFSET(%rax, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	92	push %rcx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	93	CFI_ADJUST_CFA_OFFSET(8)
				94	CFI_REL_OFFSET(%rcx, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	95	push %rdx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	96	CFI_ADJUST_CFA_OFFSET(8)
				97	CFI_REL_OFFSET(%rdx, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	98	push %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	99	CFI_ADJUST_CFA_OFFSET(8)
				100	CFI_REL_OFFSET(%rsi, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	101	push %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	102	CFI_ADJUST_CFA_OFFSET(8)
				103	CFI_REL_OFFSET(%rdi, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	104	push %r8
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	105	CFI_ADJUST_CFA_OFFSET(8)
				106	CFI_REL_OFFSET(%r8, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	107	push %r9
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	108	CFI_ADJUST_CFA_OFFSET(8)
				109	CFI_REL_OFFSET(%r9, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	110	push %r10
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	111	CFI_ADJUST_CFA_OFFSET(8)
				112	CFI_REL_OFFSET(%r10, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	113	push %r11
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	114	CFI_ADJUST_CFA_OFFSET(8)
				115	CFI_REL_OFFSET(%r11, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	116	# Align stack frame.
				117	push %rbx # non-scratch
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	118	CFI_ADJUST_CFA_OFFSET(8)
				119	CFI_REL_OFFSET(%rbx, 0)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	120	mov %rsp, %rbx # save current rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	121	CFI_DEF_CFA_REGISTER(%rbx)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	122	shr $4, %rsp # clear 4 lsb, align to 16
				123	shl $4, %rsp
				124
				125	call __tsan_report_race
				126
				127	# Unalign stack frame back.
				128	mov %rbx, %rsp # restore the original rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	129	CFI_DEF_CFA_REGISTER(%rsp)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	130	pop %rbx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	131	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	132	# Restore scratch registers.
				133	pop %r11
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	134	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	135	pop %r10
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	136	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	137	pop %r9
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	138	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	139	pop %r8
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	140	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	141	pop %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	142	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	143	pop %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	144	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	145	pop %rdx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	146	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	147	pop %rcx
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	148	CFI_ADJUST_CFA_OFFSET(-8)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	149	pop %rax
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	150	CFI_ADJUST_CFA_OFFSET(-8)
				151	CFI_RESTORE(%rax)
				152	CFI_RESTORE(%rbx)
				153	CFI_RESTORE(%rcx)
				154	CFI_RESTORE(%rdx)
				155	CFI_RESTORE(%rsi)
				156	CFI_RESTORE(%rdi)
				157	CFI_RESTORE(%r8)
				158	CFI_RESTORE(%r9)
				159	CFI_RESTORE(%r10)
				160	CFI_RESTORE(%r11)
Kostya Serebryany	4ad375f	2012-05-10 13:48:04 +0000	[diff] [blame]	161	ret
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	162	CFI_ENDPROC
Dmitry Vyukov	e2b5b5c	2012-08-17 18:05:28 +0000	[diff] [blame]	163
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	164	.hidden __tsan_setjmp
				165	.comm _ZN14__interception11real_setjmpE,8,8
				166	.globl setjmp
				167	.type setjmp, @function
				168	setjmp:
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	169	CFI_STARTPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	170	// save env parameter
				171	push %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	172	CFI_ADJUST_CFA_OFFSET(8)
				173	CFI_REL_OFFSET(%rdi, 0)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	174	// obtain %rsp
				175	lea 16(%rsp), %rdi
				176	mov %rdi, %rsi
				177	xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
				178	rol $0x11, %rsi
				179	// call tsan interceptor
				180	call __tsan_setjmp
				181	// restore env parameter
				182	pop %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	183	CFI_ADJUST_CFA_OFFSET(-8)
				184	CFI_RESTORE(%rdi)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	185	// tail jump to libc setjmp
				186	movl $0, %eax
				187	movq _ZN14__interception11real_setjmpE@GOTPCREL(%rip), %rdx
				188	jmp *(%rdx)
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	189	CFI_ENDPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	190	.size setjmp, .-setjmp
				191
				192	.comm _ZN14__interception12real__setjmpE,8,8
				193	.globl _setjmp
				194	.type _setjmp, @function
				195	_setjmp:
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	196	CFI_STARTPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	197	// save env parameter
				198	push %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	199	CFI_ADJUST_CFA_OFFSET(8)
				200	CFI_REL_OFFSET(%rdi, 0)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	201	// obtain %rsp
				202	lea 16(%rsp), %rdi
				203	mov %rdi, %rsi
				204	xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
				205	rol $0x11, %rsi
				206	// call tsan interceptor
				207	call __tsan_setjmp
				208	// restore env parameter
				209	pop %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	210	CFI_ADJUST_CFA_OFFSET(-8)
				211	CFI_RESTORE(%rdi)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	212	// tail jump to libc setjmp
				213	movl $0, %eax
				214	movq _ZN14__interception12real__setjmpE@GOTPCREL(%rip), %rdx
				215	jmp *(%rdx)
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	216	CFI_ENDPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	217	.size _setjmp, .-_setjmp
				218
				219	.comm _ZN14__interception14real_sigsetjmpE,8,8
				220	.globl sigsetjmp
				221	.type sigsetjmp, @function
				222	sigsetjmp:
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	223	CFI_STARTPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	224	// save env parameter
				225	push %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	226	CFI_ADJUST_CFA_OFFSET(8)
				227	CFI_REL_OFFSET(%rdi, 0)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	228	// save savesigs parameter
				229	push %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	230	CFI_ADJUST_CFA_OFFSET(8)
				231	CFI_REL_OFFSET(%rsi, 0)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	232	// align stack frame
				233	sub $8, %rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	234	CFI_ADJUST_CFA_OFFSET(8)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	235	// obtain %rsp
				236	lea 32(%rsp), %rdi
				237	mov %rdi, %rsi
				238	xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
				239	rol $0x11, %rsi
				240	// call tsan interceptor
				241	call __tsan_setjmp
				242	// unalign stack frame
				243	add $8, %rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	244	CFI_ADJUST_CFA_OFFSET(-8)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	245	// restore savesigs parameter
				246	pop %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	247	CFI_ADJUST_CFA_OFFSET(-8)
				248	CFI_RESTORE(%rsi)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	249	// restore env parameter
				250	pop %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	251	CFI_ADJUST_CFA_OFFSET(-8)
				252	CFI_RESTORE(%rdi)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	253	// tail jump to libc sigsetjmp
				254	movl $0, %eax
				255	movq _ZN14__interception14real_sigsetjmpE@GOTPCREL(%rip), %rdx
				256	jmp *(%rdx)
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	257	CFI_ENDPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	258	.size sigsetjmp, .-sigsetjmp
				259
				260	.comm _ZN14__interception16real___sigsetjmpE,8,8
				261	.globl __sigsetjmp
				262	.type __sigsetjmp, @function
				263	__sigsetjmp:
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	264	CFI_STARTPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	265	// save env parameter
				266	push %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	267	CFI_ADJUST_CFA_OFFSET(8)
				268	CFI_REL_OFFSET(%rdi, 0)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	269	// save savesigs parameter
				270	push %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	271	CFI_ADJUST_CFA_OFFSET(8)
				272	CFI_REL_OFFSET(%rsi, 0)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	273	// align stack frame
				274	sub $8, %rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	275	CFI_ADJUST_CFA_OFFSET(8)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	276	// obtain %rsp
				277	lea 32(%rsp), %rdi
				278	mov %rdi, %rsi
				279	xor %fs:0x30, %rsi // magic mangling of rsp (see libc setjmp)
				280	rol $0x11, %rsi
				281	// call tsan interceptor
				282	call __tsan_setjmp
				283	// unalign stack frame
				284	add $8, %rsp
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	285	CFI_ADJUST_CFA_OFFSET(-8)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	286	// restore savesigs parameter
				287	pop %rsi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	288	CFI_ADJUST_CFA_OFFSET(-8)
				289	CFI_RESTORE(%rsi)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	290	// restore env parameter
				291	pop %rdi
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	292	CFI_ADJUST_CFA_OFFSET(-8)
				293	CFI_RESTORE(%rdi)
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	294	// tail jump to libc sigsetjmp
				295	movl $0, %eax
				296	movq _ZN14__interception16real___sigsetjmpE@GOTPCREL(%rip), %rdx
				297	jmp *(%rdx)
Kostya Serebryany	14e92c2	2013-12-05 07:44:35 +0000	[diff] [blame]	298	CFI_ENDPROC
Dmitry Vyukov	4adf49d	2013-03-25 10:10:44 +0000	[diff] [blame]	299	.size __sigsetjmp, .-__sigsetjmp
				300
Dmitry Vyukov	e2b5b5c	2012-08-17 18:05:28 +0000	[diff] [blame]	301	#ifdef __linux__
				302	/* We do not need executable stack. */
				303	.section .note.GNU-stack,"",@progbits
				304	#endif