master
1// The content of this file is AArch64-only:
2#if defined(__aarch64__)
3
4#include "sanitizer_common/sanitizer_asm.h"
5#include "builtins/assembly.h"
6
7#if !defined(__APPLE__)
8.section .text
9#else
10.section __TEXT,__text
11.align 3
12#endif
13
14ASM_HIDDEN(__tsan_setjmp)
15.comm _ZN14__interception11real_setjmpE,8,8
16.globl ASM_SYMBOL_INTERCEPTOR(setjmp)
17ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(setjmp))
18ASM_SYMBOL_INTERCEPTOR(setjmp):
19 CFI_STARTPROC
20 BTI_C
21
22 // Save frame/link register
23 stp x29, x30, [sp, -32]!
24 CFI_DEF_CFA_OFFSET (32)
25 CFI_OFFSET (29, -32)
26 CFI_OFFSET (30, -24)
27
28 // Adjust the SP for previous frame
29 add x29, sp, 0
30 CFI_DEF_CFA_REGISTER (29)
31
32 // Save env parameter
33 str x0, [sp, 16]
34 CFI_OFFSET (0, -16)
35
36 // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
37 add x0, x29, 32
38
39 // call tsan interceptor
40 bl ASM_SYMBOL(__tsan_setjmp)
41
42 // Restore env parameter
43 ldr x0, [sp, 16]
44 CFI_RESTORE (0)
45
46 // Restore frame/link register
47 ldp x29, x30, [sp], 32
48 CFI_RESTORE (29)
49 CFI_RESTORE (30)
50 CFI_DEF_CFA (31, 0)
51
52 // tail jump to libc setjmp
53#if !defined(__APPLE__)
54 adrp x1, :got:_ZN14__interception11real_setjmpE
55 ldr x1, [x1, #:got_lo12:_ZN14__interception11real_setjmpE]
56 ldr x1, [x1]
57#else
58 adrp x1, _setjmp@GOTPAGE
59 ldr x1, [x1, _setjmp@GOTPAGEOFF]
60#endif
61 br x1
62
63 CFI_ENDPROC
64ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(setjmp))
65
66.comm _ZN14__interception12real__setjmpE,8,8
67.globl ASM_SYMBOL_INTERCEPTOR(_setjmp)
68ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(_setjmp))
69ASM_SYMBOL_INTERCEPTOR(_setjmp):
70 CFI_STARTPROC
71 BTI_C
72
73 // Save frame/link register
74 stp x29, x30, [sp, -32]!
75 CFI_DEF_CFA_OFFSET (32)
76 CFI_OFFSET (29, -32)
77 CFI_OFFSET (30, -24)
78
79 // Adjust the SP for previous frame
80 add x29, sp, 0
81 CFI_DEF_CFA_REGISTER (29)
82
83 // Save env parameter
84 str x0, [sp, 16]
85 CFI_OFFSET (0, -16)
86
87 // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
88 add x0, x29, 32
89
90 // call tsan interceptor
91 bl ASM_SYMBOL(__tsan_setjmp)
92
93 // Restore env parameter
94 ldr x0, [sp, 16]
95 CFI_RESTORE (0)
96
97 // Restore frame/link register
98 ldp x29, x30, [sp], 32
99 CFI_RESTORE (29)
100 CFI_RESTORE (30)
101 CFI_DEF_CFA (31, 0)
102
103 // tail jump to libc setjmp
104#if !defined(__APPLE__)
105 adrp x1, :got:_ZN14__interception12real__setjmpE
106 ldr x1, [x1, #:got_lo12:_ZN14__interception12real__setjmpE]
107 ldr x1, [x1]
108#else
109 adrp x1, __setjmp@GOTPAGE
110 ldr x1, [x1, __setjmp@GOTPAGEOFF]
111#endif
112 br x1
113
114 CFI_ENDPROC
115ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(_setjmp))
116
117.comm _ZN14__interception14real_sigsetjmpE,8,8
118.globl ASM_SYMBOL_INTERCEPTOR(sigsetjmp)
119ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(sigsetjmp))
120ASM_SYMBOL_INTERCEPTOR(sigsetjmp):
121 CFI_STARTPROC
122 BTI_C
123
124 // Save frame/link register
125 stp x29, x30, [sp, -32]!
126 CFI_DEF_CFA_OFFSET (32)
127 CFI_OFFSET (29, -32)
128 CFI_OFFSET (30, -24)
129
130 // Adjust the SP for previous frame
131 add x29, sp, 0
132 CFI_DEF_CFA_REGISTER (29)
133
134 // Save env and savesigs parameter
135 stp x0, x1, [sp, 16]
136 CFI_OFFSET (0, -16)
137 CFI_OFFSET (1, -8)
138
139 // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
140 add x0, x29, 32
141
142 // call tsan interceptor
143 bl ASM_SYMBOL(__tsan_setjmp)
144
145 // Restore env and savesigs parameter
146 ldp x0, x1, [sp, 16]
147 CFI_RESTORE (0)
148 CFI_RESTORE (1)
149
150 // Restore frame/link register
151 ldp x29, x30, [sp], 32
152 CFI_RESTORE (29)
153 CFI_RESTORE (30)
154 CFI_DEF_CFA (31, 0)
155
156 // tail jump to libc sigsetjmp
157#if !defined(__APPLE__)
158 adrp x2, :got:_ZN14__interception14real_sigsetjmpE
159 ldr x2, [x2, #:got_lo12:_ZN14__interception14real_sigsetjmpE]
160 ldr x2, [x2]
161#else
162 adrp x2, _sigsetjmp@GOTPAGE
163 ldr x2, [x2, _sigsetjmp@GOTPAGEOFF]
164#endif
165 br x2
166 CFI_ENDPROC
167ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(sigsetjmp))
168
169#if !defined(__APPLE__)
170.comm _ZN14__interception16real___sigsetjmpE,8,8
171.globl ASM_SYMBOL_INTERCEPTOR(__sigsetjmp)
172ASM_TYPE_FUNCTION(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp))
173ASM_SYMBOL_INTERCEPTOR(__sigsetjmp):
174 CFI_STARTPROC
175 BTI_C
176
177 // Save frame/link register
178 stp x29, x30, [sp, -32]!
179 CFI_DEF_CFA_OFFSET (32)
180 CFI_OFFSET (29, -32)
181 CFI_OFFSET (30, -24)
182
183 // Adjust the SP for previous frame
184 add x29, sp, 0
185 CFI_DEF_CFA_REGISTER (29)
186
187 // Save env and savesigs parameter
188 stp x0, x1, [sp, 16]
189 CFI_OFFSET (0, -16)
190 CFI_OFFSET (1, -8)
191
192 // Obtain SP, first argument to `void __tsan_setjmp(uptr sp)`
193 add x0, x29, 32
194
195 // call tsan interceptor
196 bl ASM_SYMBOL(__tsan_setjmp)
197
198 // Restore env and savesigs parameter
199 ldp x0, x1, [sp, 16]
200 CFI_RESTORE (0)
201 CFI_RESTORE (1)
202
203 // Restore frame/link register
204 ldp x29, x30, [sp], 32
205 CFI_RESTORE (29)
206 CFI_RESTORE (30)
207 CFI_DEF_CFA (31, 0)
208
209 // tail jump to libc __sigsetjmp
210#if !defined(__APPLE__)
211 adrp x2, :got:_ZN14__interception16real___sigsetjmpE
212 ldr x2, [x2, #:got_lo12:_ZN14__interception16real___sigsetjmpE]
213 ldr x2, [x2]
214#else
215 adrp x2, ASM_SYMBOL(__sigsetjmp)@page
216 add x2, x2, ASM_SYMBOL(__sigsetjmp)@pageoff
217#endif
218 br x2
219 CFI_ENDPROC
220ASM_SIZE(ASM_SYMBOL_INTERCEPTOR(__sigsetjmp))
221#endif
222
223NO_EXEC_STACK_DIRECTIVE
224
225GNU_PROPERTY_BTI_PAC
226
227#endif