1// The content of this file is x86_64-only:
2#if defined(__x86_64__)
3
4#include "sanitizer_common/sanitizer_asm.h"
5
6#if !defined(__APPLE__)
7.section .text
8#else
9.section __TEXT,__text
10#endif
11
12ASM_HIDDEN(__tsan_setjmp)
13#if defined(__NetBSD__)
14.comm _ZN14__interception15real___setjmp14E,8,8
15#elif !defined(__APPLE__)
16.comm _ZN14__interception11real_setjmpE,8,8
17#endif
18#if defined(__NetBSD__)
19.globl ASM_SYMBOL_INTERCEPTOR(__setjmp14)
20ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(__setjmp14))
21ASM_SYMBOL_INTERCEPTOR(__setjmp14):
22#else
23.globl ASM_SYMBOL_INTERCEPTOR(setjmp)
24ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(setjmp))
25ASM_SYMBOL_INTERCEPTOR(setjmp):
26#endif
27 CFI_STARTPROC
28 _CET_ENDBR
29 // save env parameter
30 push %rdi
31 CFI_ADJUST_CFA_OFFSET(8)
32 CFI_REL_OFFSET(%rdi, 0)
33 // obtain SP, store in %rdi, first argument to `void __tsan_setjmp(uptr sp)`
34#if defined(__FreeBSD__) || defined(__NetBSD__)
35 lea 8(%rsp), %rdi
36#elif defined(__linux__) || defined(__APPLE__)
37 lea 16(%rsp), %rdi
38#else
39# error "Unknown platform"
40#endif
41 // call tsan interceptor
42 call ASM_SYMBOL(__tsan_setjmp)
43 // restore env parameter
44 pop %rdi
45 CFI_ADJUST_CFA_OFFSET(-8)
46 CFI_RESTORE(%rdi)
47 // tail jump to libc setjmp
48 movl $0, %eax
49#if defined(__NetBSD__)
50 movq _ZN14__interception15real___setjmp14E@GOTPCREL(%rip), %rdx
51 jmp *(%rdx)
52#elif !defined(__APPLE__)
53 movq _ZN14__interception11real_setjmpE@GOTPCREL(%rip), %rdx
54 jmp *(%rdx)
55#else
56 jmp ASM_SYMBOL(setjmp)
57#endif
58 CFI_ENDPROC
59#if defined(__NetBSD__)
60ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(__setjmp14))
61#else
62ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(setjmp))
63#endif
64
65.comm _ZN14__interception12real__setjmpE,8,8
66.globl ASM_SYMBOL_INTERCEPTOR(_setjmp)
67ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(_setjmp))
68ASM_SYMBOL_INTERCEPTOR(_setjmp):
69 CFI_STARTPROC
70 _CET_ENDBR
71 // save env parameter
72 push %rdi
73 CFI_ADJUST_CFA_OFFSET(8)
74 CFI_REL_OFFSET(%rdi, 0)
75 // obtain SP, store in %rdi, first argument to `void __tsan_setjmp(uptr sp)`
76#if defined(__FreeBSD__) || defined(__NetBSD__)
77 lea 8(%rsp), %rdi
78#elif defined(__linux__) || defined(__APPLE__)
79 lea 16(%rsp), %rdi
80#else
81# error "Unknown platform"
82#endif
83 // call tsan interceptor
84 call ASM_SYMBOL(__tsan_setjmp)
85 // restore env parameter
86 pop %rdi
87 CFI_ADJUST_CFA_OFFSET(-8)
88 CFI_RESTORE(%rdi)
89 // tail jump to libc setjmp
90 movl $0, %eax
91#if !defined(__APPLE__)
92 movq _ZN14__interception12real__setjmpE@GOTPCREL(%rip), %rdx
93 jmp *(%rdx)
94#else
95 jmp ASM_SYMBOL(_setjmp)
96#endif
97 CFI_ENDPROC
98ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(_setjmp))
99
100#if defined(__NetBSD__)
101.comm _ZN14__interception18real___sigsetjmp14E,8,8
102.globl ASM_SYMBOL_INTERCEPTOR(__sigsetjmp14)
103ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp14))
104ASM_SYMBOL_INTERCEPTOR(__sigsetjmp14):
105#else
106.comm _ZN14__interception14real_sigsetjmpE,8,8
107.globl ASM_SYMBOL_INTERCEPTOR(sigsetjmp)
108ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(sigsetjmp))
109ASM_SYMBOL_INTERCEPTOR(sigsetjmp):
110#endif
111 CFI_STARTPROC
112 _CET_ENDBR
113 // save env parameter
114 push %rdi
115 CFI_ADJUST_CFA_OFFSET(8)
116 CFI_REL_OFFSET(%rdi, 0)
117 // save savesigs parameter
118 push %rsi
119 CFI_ADJUST_CFA_OFFSET(8)
120 CFI_REL_OFFSET(%rsi, 0)
121 // align stack frame
122 sub $8, %rsp
123 CFI_ADJUST_CFA_OFFSET(8)
124 // obtain SP, store in %rdi, first argument to `void __tsan_setjmp(uptr sp)`
125#if defined(__FreeBSD__) || defined(__NetBSD__)
126 lea 24(%rsp), %rdi
127#elif defined(__linux__) || defined(__APPLE__)
128 lea 32(%rsp), %rdi
129#else
130# error "Unknown platform"
131#endif
132 // call tsan interceptor
133 call ASM_SYMBOL(__tsan_setjmp)
134 // unalign stack frame
135 add $8, %rsp
136 CFI_ADJUST_CFA_OFFSET(-8)
137 // restore savesigs parameter
138 pop %rsi
139 CFI_ADJUST_CFA_OFFSET(-8)
140 CFI_RESTORE(%rsi)
141 // restore env parameter
142 pop %rdi
143 CFI_ADJUST_CFA_OFFSET(-8)
144 CFI_RESTORE(%rdi)
145 // tail jump to libc sigsetjmp
146 movl $0, %eax
147#if defined(__NetBSD__)
148 movq _ZN14__interception18real___sigsetjmp14E@GOTPCREL(%rip), %rdx
149 jmp *(%rdx)
150#elif !defined(__APPLE__)
151 movq _ZN14__interception14real_sigsetjmpE@GOTPCREL(%rip), %rdx
152 jmp *(%rdx)
153#else
154 jmp ASM_SYMBOL(sigsetjmp)
155#endif
156 CFI_ENDPROC
157#if defined(__NetBSD__)
158ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp14))
159#else
160ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(sigsetjmp))
161#endif
162
163#if !defined(__APPLE__) && !defined(__NetBSD__)
164.comm _ZN14__interception16real___sigsetjmpE,8,8
165.globl ASM_SYMBOL_INTERCEPTOR(__sigsetjmp)
166ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp))
167ASM_SYMBOL_INTERCEPTOR(__sigsetjmp):
168 CFI_STARTPROC
169 _CET_ENDBR
170 // save env parameter
171 push %rdi
172 CFI_ADJUST_CFA_OFFSET(8)
173 CFI_REL_OFFSET(%rdi, 0)
174 // save savesigs parameter
175 push %rsi
176 CFI_ADJUST_CFA_OFFSET(8)
177 CFI_REL_OFFSET(%rsi, 0)
178 // align stack frame
179 sub $8, %rsp
180 CFI_ADJUST_CFA_OFFSET(8)
181 // obtain SP, store in %rdi, first argument to `void __tsan_setjmp(uptr sp)`
182#if defined(__FreeBSD__)
183 lea 24(%rsp), %rdi
184#else
185 lea 32(%rsp), %rdi
186#endif
187 // call tsan interceptor
188 call ASM_SYMBOL(__tsan_setjmp)
189 // unalign stack frame
190 add $8, %rsp
191 CFI_ADJUST_CFA_OFFSET(-8)
192 // restore savesigs parameter
193 pop %rsi
194 CFI_ADJUST_CFA_OFFSET(-8)
195 CFI_RESTORE(%rsi)
196 // restore env parameter
197 pop %rdi
198 CFI_ADJUST_CFA_OFFSET(-8)
199 CFI_RESTORE(%rdi)
200 // tail jump to libc sigsetjmp
201 movl $0, %eax
202 movq _ZN14__interception16real___sigsetjmpE@GOTPCREL(%rip), %rdx
203 jmp *(%rdx)
204 CFI_ENDPROC
205ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp))
206#endif // !defined(__APPLE__) && !defined(__NetBSD__)
207
208NO_EXEC_STACK_DIRECTIVE
209
210#endif
211