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Initial BSD syscall tracing (resolves #282)
+665
-16
+28
-2
src/kernel/emulation/linux/syscalls-table.S
+28
-2
src/kernel/emulation/linux/syscalls-table.S
···
5
5
#if defined(__x86_64__)
6
6
7
7
__darling_bsd_syscall:
8
+
Lentry_hook:
9
+
.space 13, 0x90
8
10
movq ___bsd_syscall_table@GOTPCREL(%rip), %r10
9
11
movq (%r10,%rax,8), %r10
10
12
test %r10, %r10
···
16
18
pushq %r11
17
19
call *%r10
18
20
addq $16, %rsp
21
+
.std_ret:
22
+
Lexit_hook:
23
+
.space 13, 0x90
19
24
ret
20
25
.no_sys:
21
26
movq %rax, %rdi
22
27
call ___unknown_syscall
23
-
ret
28
+
jmp .std_ret
29
+
30
+
.section __DATA,__data
31
+
.globl __darling_bsd_syscall_entry
32
+
.globl __darling_bsd_syscall_exit
33
+
__darling_bsd_syscall_entry:
34
+
.quad Lentry_hook
35
+
__darling_bsd_syscall_exit:
36
+
.quad Lexit_hook
24
37
25
38
#elif defined(__i386__)
26
39
···
29
42
movl %ecx, -24+off(%esp)
30
43
31
44
__darling_bsd_syscall:
45
+
Lentry_hook:
46
+
.space 6, 0x90
32
47
calll 1f
33
48
1:
34
49
popl %ecx
···
48
63
subl $24, %esp
49
64
call *%eax
50
65
addl $24, %esp
66
+
.std_ret:
67
+
Lexit_hook:
68
+
.space 6, 0x90
51
69
ret
52
70
.no_sys:
53
71
pushl %ecx
54
72
call ___unknown_syscall
55
73
addl $4, %esp
56
-
ret
74
+
jmp .std_ret
57
75
58
76
.section __IMPORT,__pointers,non_lazy_symbol_pointers
59
77
L___bsd_syscall_table$non_lazy_ptr:
60
78
.indirect_symbol ___bsd_syscall_table
61
79
.long 0
80
+
81
+
.section __DATA,__data
82
+
.globl __darling_bsd_syscall_entry
83
+
.globl __darling_bsd_syscall_exit
84
+
__darling_bsd_syscall_entry:
85
+
.long Lentry_hook
86
+
__darling_bsd_syscall_exit:
87
+
.long Lexit_hook
62
88
63
89
.subsections_via_symbols
64
90
+7
src/kernel/emulation/linux/unistd/write.c
+7
src/kernel/emulation/linux/unistd/write.c
···
8
8
return sys_write_nocancel(fd, mem, len);
9
9
}
10
10
11
+
__attribute__((visibility("default")))
12
+
long __write_for_xtrace(int fd, const void* mem, int len)
13
+
{
14
+
return sys_write_nocancel(fd, mem, len);
15
+
}
16
+
17
+
11
18
long sys_write_nocancel(int fd, const void* mem, int len)
12
19
{
13
20
int ret;
+1
src/xtrace/CMakeLists.txt
+1
src/xtrace/CMakeLists.txt
+573
src/xtrace/bsd_trace.cpp
+573
src/xtrace/bsd_trace.cpp
···
1
+
#include "simple.h"
2
+
#include <unistd.h>
3
+
#include <pthread.h>
4
+
#include "xtracelib.h"
5
+
6
+
_Thread_local int bsd_call_nr = -1;
7
+
8
+
static void print_errno(char* buf, uintptr_t rv);
9
+
static void print_errno_num(char* buf, uintptr_t rv);
10
+
static void print_errno_ptr(char* buf, uintptr_t rv);
11
+
12
+
// awk '/^[0-9]/ { if ($6 !~ "nosys") { split($6, a, "("); print "[" $1 "] = { \"" a[1] "\", NULL, print_errno }," } }'
13
+
14
+
static const struct calldef bsd_defs[600] = {
15
+
[1] = { "exit", NULL, print_errno_num },
16
+
[2] = { "fork", NULL, print_errno_num },
17
+
[3] = { "read", NULL, print_errno_num },
18
+
[4] = { "write", NULL, print_errno_num },
19
+
[5] = { "open", NULL, print_errno_num },
20
+
[6] = { "close", NULL, print_errno_num },
21
+
[7] = { "wait4", NULL, print_errno_num },
22
+
[9] = { "link", NULL, print_errno_num },
23
+
[10] = { "unlink", NULL, print_errno_num },
24
+
[12] = { "chdir", NULL, print_errno_num },
25
+
[13] = { "fchdir", NULL, print_errno_num },
26
+
[14] = { "mknod", NULL, print_errno_num },
27
+
[15] = { "chmod", NULL, print_errno_num },
28
+
[16] = { "chown", NULL, print_errno_num },
29
+
[18] = { "getfsstat", NULL, print_errno_num },
30
+
[20] = { "getpid", NULL, print_errno_num },
31
+
[23] = { "setuid", NULL, print_errno_num },
32
+
[24] = { "getuid", NULL, print_errno_num },
33
+
[25] = { "geteuid", NULL, print_errno_num },
34
+
[26] = { "ptrace", NULL, print_errno_num },
35
+
[27] = { "recvmsg", NULL, print_errno_num },
36
+
[28] = { "sendmsg", NULL, print_errno_num },
37
+
[29] = { "recvfrom", NULL, print_errno_num },
38
+
[30] = { "accept", NULL, print_errno_num },
39
+
[31] = { "getpeername", NULL, print_errno_num },
40
+
[32] = { "getsockname", NULL, print_errno_num },
41
+
[33] = { "access", NULL, print_errno_num },
42
+
[34] = { "chflags", NULL, print_errno_num },
43
+
[35] = { "fchflags", NULL, print_errno_num },
44
+
[36] = { "sync", NULL, print_errno_num },
45
+
[37] = { "kill", NULL, print_errno_num },
46
+
[39] = { "getppid", NULL, print_errno_num },
47
+
[41] = { "dup", NULL, print_errno_num },
48
+
[42] = { "pipe", NULL, print_errno_num },
49
+
[43] = { "getegid", NULL, print_errno_num },
50
+
[46] = { "sigaction", NULL, print_errno_num },
51
+
[47] = { "getgid", NULL, print_errno_num },
52
+
[48] = { "sigprocmask", NULL, print_errno_num },
53
+
[49] = { "getlogin", NULL, print_errno_num },
54
+
[50] = { "setlogin", NULL, print_errno_num },
55
+
[51] = { "acct", NULL, print_errno_num },
56
+
[52] = { "sigpending", NULL, print_errno_num },
57
+
[53] = { "sigaltstack", NULL, print_errno_num },
58
+
[54] = { "ioctl", NULL, print_errno_num },
59
+
[55] = { "reboot", NULL, print_errno_num },
60
+
[56] = { "revoke", NULL, print_errno_num },
61
+
[57] = { "symlink", NULL, print_errno_num },
62
+
[58] = { "readlink", NULL, print_errno_num },
63
+
[59] = { "execve", NULL, print_errno_num },
64
+
[60] = { "umask", NULL, print_errno_num },
65
+
[61] = { "chroot", NULL, print_errno_num },
66
+
[65] = { "msync", NULL, print_errno_num },
67
+
[66] = { "vfork", NULL, print_errno_num },
68
+
[73] = { "munmap", NULL, print_errno_num },
69
+
[74] = { "mprotect", NULL, print_errno_num },
70
+
[75] = { "madvise", NULL, print_errno_num },
71
+
[78] = { "mincore", NULL, print_errno_num },
72
+
[79] = { "getgroups", NULL, print_errno_num },
73
+
[80] = { "setgroups", NULL, print_errno_num },
74
+
[81] = { "getpgrp", NULL, print_errno_num },
75
+
[82] = { "setpgid", NULL, print_errno_num },
76
+
[83] = { "setitimer", NULL, print_errno_num },
77
+
[85] = { "swapon", NULL, print_errno_num },
78
+
[86] = { "getitimer", NULL, print_errno_num },
79
+
[89] = { "getdtablesize", NULL, print_errno_num },
80
+
[90] = { "dup2", NULL, print_errno_num },
81
+
[92] = { "fcntl", NULL, print_errno_num },
82
+
[93] = { "select", NULL, print_errno_num },
83
+
[95] = { "fsync", NULL, print_errno_num },
84
+
[96] = { "setpriority", NULL, print_errno_num },
85
+
[97] = { "socket", NULL, print_errno_num },
86
+
[98] = { "connect", NULL, print_errno_num },
87
+
[100] = { "getpriority", NULL, print_errno_num },
88
+
[104] = { "bind", NULL, print_errno_num },
89
+
[105] = { "setsockopt", NULL, print_errno_num },
90
+
[106] = { "listen", NULL, print_errno_num },
91
+
[111] = { "sigsuspend", NULL, print_errno_num },
92
+
[116] = { "gettimeofday", NULL, print_errno_num },
93
+
[117] = { "getrusage", NULL, print_errno_num },
94
+
[118] = { "getsockopt", NULL, print_errno_num },
95
+
[120] = { "readv", NULL, print_errno_num },
96
+
[121] = { "writev", NULL, print_errno_num },
97
+
[122] = { "settimeofday", NULL, print_errno_num },
98
+
[123] = { "fchown", NULL, print_errno_num },
99
+
[124] = { "fchmod", NULL, print_errno_num },
100
+
[126] = { "setreuid", NULL, print_errno_num },
101
+
[127] = { "setregid", NULL, print_errno_num },
102
+
[128] = { "rename", NULL, print_errno_num },
103
+
[131] = { "flock", NULL, print_errno_num },
104
+
[132] = { "mkfifo", NULL, print_errno_num },
105
+
[133] = { "sendto", NULL, print_errno_num },
106
+
[134] = { "shutdown", NULL, print_errno_num },
107
+
[135] = { "socketpair", NULL, print_errno_num },
108
+
[136] = { "mkdir", NULL, print_errno_num },
109
+
[137] = { "rmdir", NULL, print_errno_num },
110
+
[138] = { "utimes", NULL, print_errno_num },
111
+
[139] = { "futimes", NULL, print_errno_num },
112
+
[140] = { "adjtime", NULL, print_errno_num },
113
+
[142] = { "gethostuuid", NULL, print_errno_num },
114
+
[147] = { "setsid", NULL, print_errno_num },
115
+
[151] = { "getpgid", NULL, print_errno_num },
116
+
[152] = { "setprivexec", NULL, print_errno_num },
117
+
[153] = { "pread", NULL, print_errno_num },
118
+
[154] = { "pwrite", NULL, print_errno_num },
119
+
[155] = { "nfssvc", NULL, print_errno_num },
120
+
[157] = { "statfs", NULL, print_errno_num },
121
+
[158] = { "fstatfs", NULL, print_errno_num },
122
+
[159] = { "unmount", NULL, print_errno_num },
123
+
[161] = { "getfh", NULL, print_errno_num },
124
+
[165] = { "quotactl", NULL, print_errno_num },
125
+
[167] = { "mount", NULL, print_errno_num },
126
+
[169] = { "csops", NULL, print_errno_num },
127
+
[170] = { "csops_audittoken", NULL, print_errno_num },
128
+
[173] = { "waitid", NULL, print_errno_num },
129
+
[177] = { "kdebug_typefilter", NULL, print_errno_num },
130
+
[178] = { "kdebug_trace_string", NULL, print_errno_num },
131
+
[179] = { "kdebug_trace64", NULL, print_errno_num },
132
+
[180] = { "kdebug_trace", NULL, print_errno_num },
133
+
[181] = { "setgid", NULL, print_errno_num },
134
+
[182] = { "setegid", NULL, print_errno_num },
135
+
[183] = { "seteuid", NULL, print_errno_num },
136
+
[184] = { "sigreturn", NULL, print_errno_num },
137
+
[187] = { "fdatasync", NULL, print_errno_num },
138
+
[188] = { "stat", NULL, print_errno_num },
139
+
[189] = { "fstat", NULL, print_errno_num },
140
+
[190] = { "lstat", NULL, print_errno_num },
141
+
[191] = { "pathconf", NULL, print_errno_num },
142
+
[192] = { "fpathconf", NULL, print_errno_num },
143
+
[194] = { "getrlimit", NULL, print_errno_num },
144
+
[195] = { "setrlimit", NULL, print_errno_num },
145
+
[196] = { "getdirentries", NULL, print_errno_num },
146
+
[197] = { "mmap", NULL, print_errno_ptr },
147
+
[199] = { "lseek", NULL, print_errno_num },
148
+
[200] = { "truncate", NULL, print_errno_num },
149
+
[201] = { "ftruncate", NULL, print_errno_num },
150
+
[202] = { "sysctl", NULL, print_errno_num },
151
+
[203] = { "mlock", NULL, print_errno_num },
152
+
[204] = { "munlock", NULL, print_errno_num },
153
+
[205] = { "undelete", NULL, print_errno_num },
154
+
[216] = { "open_dprotected_np", NULL, print_errno_num },
155
+
[220] = { "getattrlist", NULL, print_errno_num },
156
+
[221] = { "setattrlist", NULL, print_errno_num },
157
+
[222] = { "getdirentriesattr", NULL, print_errno_num },
158
+
[223] = { "exchangedata", NULL, print_errno_num },
159
+
[225] = { "searchfs", NULL, print_errno_num },
160
+
[226] = { "delete", NULL, print_errno_num },
161
+
[227] = { "copyfile", NULL, print_errno_num },
162
+
[228] = { "fgetattrlist", NULL, print_errno_num },
163
+
[229] = { "fsetattrlist", NULL, print_errno_num },
164
+
[230] = { "poll", NULL, print_errno_num },
165
+
[231] = { "watchevent", NULL, print_errno_num },
166
+
[232] = { "waitevent", NULL, print_errno_num },
167
+
[233] = { "modwatch", NULL, print_errno_num },
168
+
[234] = { "getxattr", NULL, print_errno_num },
169
+
[235] = { "fgetxattr", NULL, print_errno_num },
170
+
[236] = { "setxattr", NULL, print_errno_num },
171
+
[237] = { "fsetxattr", NULL, print_errno_num },
172
+
[238] = { "removexattr", NULL, print_errno_num },
173
+
[239] = { "fremovexattr", NULL, print_errno_num },
174
+
[240] = { "listxattr", NULL, print_errno_num },
175
+
[241] = { "flistxattr", NULL, print_errno_num },
176
+
[242] = { "fsctl", NULL, print_errno_num },
177
+
[243] = { "initgroups", NULL, print_errno_num },
178
+
[244] = { "posix_spawn", NULL, print_errno_num },
179
+
[245] = { "ffsctl", NULL, print_errno_num },
180
+
[247] = { "nfsclnt", NULL, print_errno_num },
181
+
[248] = { "fhopen", NULL, print_errno_num },
182
+
[250] = { "minherit", NULL, print_errno_num },
183
+
[251] = { "semsys", NULL, print_errno_num },
184
+
[252] = { "msgsys", NULL, print_errno_num },
185
+
[253] = { "shmsys", NULL, print_errno_num },
186
+
[254] = { "semctl", NULL, print_errno_num },
187
+
[255] = { "semget", NULL, print_errno_num },
188
+
[256] = { "semop", NULL, print_errno_num },
189
+
[258] = { "msgctl", NULL, print_errno_num },
190
+
[259] = { "msgget", NULL, print_errno_num },
191
+
[260] = { "msgsnd", NULL, print_errno_num },
192
+
[261] = { "msgrcv", NULL, print_errno_num },
193
+
[262] = { "shmat", NULL, print_errno_num },
194
+
[263] = { "shmctl", NULL, print_errno_num },
195
+
[264] = { "shmdt", NULL, print_errno_num },
196
+
[265] = { "shmget", NULL, print_errno_num },
197
+
[266] = { "shm_open", NULL, print_errno_num },
198
+
[267] = { "shm_unlink", NULL, print_errno_num },
199
+
[268] = { "sem_open", NULL, print_errno_num },
200
+
[269] = { "sem_close", NULL, print_errno_num },
201
+
[270] = { "sem_unlink", NULL, print_errno_num },
202
+
[271] = { "sem_wait", NULL, print_errno_num },
203
+
[272] = { "sem_trywait", NULL, print_errno_num },
204
+
[273] = { "sem_post", NULL, print_errno_num },
205
+
[274] = { "sysctlbyname", NULL, print_errno_num },
206
+
[277] = { "open_extended", NULL, print_errno_num },
207
+
[278] = { "umask_extended", NULL, print_errno_num },
208
+
[279] = { "stat_extended", NULL, print_errno_num },
209
+
[280] = { "lstat_extended", NULL, print_errno_num },
210
+
[281] = { "fstat_extended", NULL, print_errno_num },
211
+
[282] = { "chmod_extended", NULL, print_errno_num },
212
+
[283] = { "fchmod_extended", NULL, print_errno_num },
213
+
[284] = { "access_extended", NULL, print_errno_num },
214
+
[285] = { "settid", NULL, print_errno_num },
215
+
[286] = { "gettid", NULL, print_errno_num },
216
+
[287] = { "setsgroups", NULL, print_errno_num },
217
+
[288] = { "getsgroups", NULL, print_errno_num },
218
+
[289] = { "setwgroups", NULL, print_errno_num },
219
+
[290] = { "getwgroups", NULL, print_errno_num },
220
+
[291] = { "mkfifo_extended", NULL, print_errno_num },
221
+
[292] = { "mkdir_extended", NULL, print_errno_num },
222
+
[293] = { "identitysvc", NULL, print_errno_num },
223
+
[294] = { "shared_region_check_np", NULL, print_errno_num },
224
+
[296] = { "vm_pressure_monitor", NULL, print_errno_num },
225
+
[297] = { "psynch_rw_longrdlock", NULL, print_errno_num },
226
+
[298] = { "psynch_rw_yieldwrlock", NULL, print_errno_num },
227
+
[299] = { "psynch_rw_downgrade", NULL, print_errno_num },
228
+
[300] = { "psynch_rw_upgrade", NULL, print_errno_num },
229
+
[301] = { "psynch_mutexwait", NULL, print_errno_num },
230
+
[302] = { "psynch_mutexdrop", NULL, print_errno_num },
231
+
[303] = { "psynch_cvbroad", NULL, print_errno_num },
232
+
[304] = { "psynch_cvsignal", NULL, print_errno_num },
233
+
[305] = { "psynch_cvwait", NULL, print_errno_num },
234
+
[306] = { "psynch_rw_rdlock", NULL, print_errno_num },
235
+
[307] = { "psynch_rw_wrlock", NULL, print_errno_num },
236
+
[308] = { "psynch_rw_unlock", NULL, print_errno_num },
237
+
[309] = { "psynch_rw_unlock2", NULL, print_errno_num },
238
+
[310] = { "getsid", NULL, print_errno_num },
239
+
[311] = { "settid_with_pid", NULL, print_errno_num },
240
+
[312] = { "psynch_cvclrprepost", NULL, print_errno_num },
241
+
[313] = { "aio_fsync", NULL, print_errno_num },
242
+
[314] = { "aio_return", NULL, print_errno_num },
243
+
[315] = { "aio_suspend", NULL, print_errno_num },
244
+
[316] = { "aio_cancel", NULL, print_errno_num },
245
+
[317] = { "aio_error", NULL, print_errno_num },
246
+
[318] = { "aio_read", NULL, print_errno_num },
247
+
[319] = { "aio_write", NULL, print_errno_num },
248
+
[320] = { "lio_listio", NULL, print_errno_num },
249
+
[322] = { "iopolicysys", NULL, print_errno_num },
250
+
[323] = { "process_policy", NULL, print_errno_num },
251
+
[324] = { "mlockall", NULL, print_errno_num },
252
+
[325] = { "munlockall", NULL, print_errno_num },
253
+
[327] = { "issetugid", NULL, print_errno_num },
254
+
[328] = { "__pthread_kill", NULL, print_errno_num },
255
+
[329] = { "__pthread_sigmask", NULL, print_errno_num },
256
+
[330] = { "__sigwait", NULL, print_errno_num },
257
+
[331] = { "__disable_threadsignal", NULL, print_errno_num },
258
+
[332] = { "__pthread_markcancel", NULL, print_errno_num },
259
+
[333] = { "__pthread_canceled", NULL, print_errno_num },
260
+
[334] = { "__semwait_signal", NULL, print_errno_num },
261
+
[336] = { "proc_info", NULL, print_errno_num },
262
+
[337] = { "sendfile", NULL, print_errno_num },
263
+
[338] = { "stat64", NULL, print_errno_num },
264
+
[339] = { "fstat64", NULL, print_errno_num },
265
+
[340] = { "lstat64", NULL, print_errno_num },
266
+
[341] = { "stat64_extended", NULL, print_errno_num },
267
+
[342] = { "lstat64_extended", NULL, print_errno_num },
268
+
[343] = { "fstat64_extended", NULL, print_errno_num },
269
+
[344] = { "getdirentries64", NULL, print_errno_num },
270
+
[345] = { "statfs64", NULL, print_errno_num },
271
+
[346] = { "fstatfs64", NULL, print_errno_num },
272
+
[347] = { "getfsstat64", NULL, print_errno_num },
273
+
[348] = { "__pthread_chdir", NULL, print_errno_num },
274
+
[349] = { "__pthread_fchdir", NULL, print_errno_num },
275
+
[350] = { "audit", NULL, print_errno_num },
276
+
[351] = { "auditon", NULL, print_errno_num },
277
+
[353] = { "getauid", NULL, print_errno_num },
278
+
[354] = { "setauid", NULL, print_errno_num },
279
+
[357] = { "getaudit_addr", NULL, print_errno_num },
280
+
[358] = { "setaudit_addr", NULL, print_errno_num },
281
+
[359] = { "auditctl", NULL, print_errno_num },
282
+
[360] = { "bsdthread_create", NULL, print_errno_num },
283
+
[361] = { "bsdthread_terminate", NULL, print_errno_num },
284
+
[362] = { "kqueue", NULL, print_errno_num },
285
+
[363] = { "kevent", NULL, print_errno_num },
286
+
[364] = { "lchown", NULL, print_errno_num },
287
+
[366] = { "bsdthread_register", NULL, print_errno_num },
288
+
[367] = { "workq_open", NULL, print_errno_num },
289
+
[368] = { "workq_kernreturn", NULL, print_errno_num },
290
+
[369] = { "kevent64", NULL, print_errno_num },
291
+
[370] = { "__old_semwait_signal", NULL, print_errno_num },
292
+
[371] = { "__old_semwait_signal_nocancel", NULL, print_errno_num },
293
+
[372] = { "thread_selfid", NULL, print_errno_num },
294
+
[373] = { "ledger", NULL, print_errno_num },
295
+
[374] = { "kevent_qos", NULL, print_errno_num },
296
+
[380] = { "__mac_execve", NULL, print_errno_num },
297
+
[381] = { "__mac_syscall", NULL, print_errno_num },
298
+
[382] = { "__mac_get_file", NULL, print_errno_num },
299
+
[383] = { "__mac_set_file", NULL, print_errno_num },
300
+
[384] = { "__mac_get_link", NULL, print_errno_num },
301
+
[385] = { "__mac_set_link", NULL, print_errno_num },
302
+
[386] = { "__mac_get_proc", NULL, print_errno_num },
303
+
[387] = { "__mac_set_proc", NULL, print_errno_num },
304
+
[388] = { "__mac_get_fd", NULL, print_errno_num },
305
+
[389] = { "__mac_set_fd", NULL, print_errno_num },
306
+
[390] = { "__mac_get_pid", NULL, print_errno_num },
307
+
[394] = { "pselect", NULL, print_errno_num },
308
+
[395] = { "pselect_nocancel", NULL, print_errno_num },
309
+
[396] = { "read_nocancel", NULL, print_errno_num },
310
+
[397] = { "write_nocancel", NULL, print_errno_num },
311
+
[398] = { "open_nocancel", NULL, print_errno_num },
312
+
[399] = { "close_nocancel", NULL, print_errno_num },
313
+
[400] = { "wait4_nocancel", NULL, print_errno_num },
314
+
[401] = { "recvmsg_nocancel", NULL, print_errno_num },
315
+
[402] = { "sendmsg_nocancel", NULL, print_errno_num },
316
+
[403] = { "recvfrom_nocancel", NULL, print_errno_num },
317
+
[404] = { "accept_nocancel", NULL, print_errno_num },
318
+
[405] = { "msync_nocancel", NULL, print_errno_num },
319
+
[406] = { "fcntl_nocancel", NULL, print_errno_num },
320
+
[407] = { "select_nocancel", NULL, print_errno_num },
321
+
[408] = { "fsync_nocancel", NULL, print_errno_num },
322
+
[409] = { "connect_nocancel", NULL, print_errno_num },
323
+
[410] = { "sigsuspend_nocancel", NULL, print_errno_num },
324
+
[411] = { "readv_nocancel", NULL, print_errno_num },
325
+
[412] = { "writev_nocancel", NULL, print_errno_num },
326
+
[413] = { "sendto_nocancel", NULL, print_errno_num },
327
+
[414] = { "pread_nocancel", NULL, print_errno_num },
328
+
[415] = { "pwrite_nocancel", NULL, print_errno_num },
329
+
[416] = { "waitid_nocancel", NULL, print_errno_num },
330
+
[417] = { "poll_nocancel", NULL, print_errno_num },
331
+
[418] = { "msgsnd_nocancel", NULL, print_errno_num },
332
+
[419] = { "msgrcv_nocancel", NULL, print_errno_num },
333
+
[420] = { "sem_wait_nocancel", NULL, print_errno_num },
334
+
[421] = { "aio_suspend_nocancel", NULL, print_errno_num },
335
+
[422] = { "__sigwait_nocancel", NULL, print_errno_num },
336
+
[423] = { "__semwait_signal_nocancel", NULL, print_errno_num },
337
+
[424] = { "__mac_mount", NULL, print_errno_num },
338
+
[425] = { "__mac_get_mount", NULL, print_errno_num },
339
+
[426] = { "__mac_getfsstat", NULL, print_errno_num },
340
+
[427] = { "fsgetpath", NULL, print_errno_num },
341
+
[428] = { "audit_session_self", NULL, print_errno_num },
342
+
[429] = { "audit_session_join", NULL, print_errno_num },
343
+
[430] = { "fileport_makeport", NULL, print_errno_num },
344
+
[431] = { "fileport_makefd", NULL, print_errno_num },
345
+
[432] = { "audit_session_port", NULL, print_errno_num },
346
+
[433] = { "pid_suspend", NULL, print_errno_num },
347
+
[434] = { "pid_resume", NULL, print_errno_num },
348
+
[438] = { "shared_region_map_and_slide_np", NULL, print_errno_num },
349
+
[439] = { "kas_info", NULL, print_errno_num },
350
+
[440] = { "memorystatus_control", NULL, print_errno_num },
351
+
[441] = { "guarded_open_np", NULL, print_errno_num },
352
+
[442] = { "guarded_close_np", NULL, print_errno_num },
353
+
[443] = { "guarded_kqueue_np", NULL, print_errno_num },
354
+
[444] = { "change_fdguard_np", NULL, print_errno_num },
355
+
[445] = { "usrctl", NULL, print_errno_num },
356
+
[446] = { "proc_rlimit_control", NULL, print_errno_num },
357
+
[447] = { "connectx", NULL, print_errno_num },
358
+
[448] = { "disconnectx", NULL, print_errno_num },
359
+
[449] = { "peeloff", NULL, print_errno_num },
360
+
[450] = { "socket_delegate", NULL, print_errno_num },
361
+
[451] = { "telemetry", NULL, print_errno_num },
362
+
[452] = { "proc_uuid_policy", NULL, print_errno_num },
363
+
[453] = { "memorystatus_get_level", NULL, print_errno_num },
364
+
[454] = { "system_override", NULL, print_errno_num },
365
+
[455] = { "vfs_purge", NULL, print_errno_num },
366
+
[456] = { "sfi_ctl", NULL, print_errno_num },
367
+
[457] = { "sfi_pidctl", NULL, print_errno_num },
368
+
[458] = { "coalition", NULL, print_errno_num },
369
+
[459] = { "coalition_info", NULL, print_errno_num },
370
+
[460] = { "necp_match_policy", NULL, print_errno_num },
371
+
[461] = { "getattrlistbulk", NULL, print_errno_num },
372
+
[462] = { "clonefileat", NULL, print_errno_num },
373
+
[463] = { "openat", NULL, print_errno_num },
374
+
[464] = { "openat_nocancel", NULL, print_errno_num },
375
+
[465] = { "renameat", NULL, print_errno_num },
376
+
[466] = { "faccessat", NULL, print_errno_num },
377
+
[467] = { "fchmodat", NULL, print_errno_num },
378
+
[468] = { "fchownat", NULL, print_errno_num },
379
+
[469] = { "fstatat", NULL, print_errno_num },
380
+
[470] = { "fstatat64", NULL, print_errno_num },
381
+
[471] = { "linkat", NULL, print_errno_num },
382
+
[472] = { "unlinkat", NULL, print_errno_num },
383
+
[473] = { "readlinkat", NULL, print_errno_num },
384
+
[474] = { "symlinkat", NULL, print_errno_num },
385
+
[475] = { "mkdirat", NULL, print_errno_num },
386
+
[476] = { "getattrlistat", NULL, print_errno_num },
387
+
[477] = { "proc_trace_log", NULL, print_errno_num },
388
+
[478] = { "bsdthread_ctl", NULL, print_errno_num },
389
+
[479] = { "openbyid_np", NULL, print_errno_num },
390
+
[480] = { "recvmsg_x", NULL, print_errno_num },
391
+
[481] = { "sendmsg_x", NULL, print_errno_num },
392
+
[482] = { "thread_selfusage", NULL, print_errno_num },
393
+
[483] = { "csrctl", NULL, print_errno_num },
394
+
[484] = { "guarded_open_dprotected_np", NULL, print_errno_num },
395
+
[485] = { "guarded_write_np", NULL, print_errno_num },
396
+
[486] = { "guarded_pwrite_np", NULL, print_errno_num },
397
+
[487] = { "guarded_writev_np", NULL, print_errno_num },
398
+
[488] = { "renameatx_np", NULL, print_errno_num },
399
+
[489] = { "mremap_encrypted", NULL, print_errno_num },
400
+
[490] = { "netagent_trigger", NULL, print_errno_num },
401
+
[491] = { "stack_snapshot_with_config", NULL, print_errno_num },
402
+
[492] = { "microstackshot", NULL, print_errno_num },
403
+
[493] = { "grab_pgo_data", NULL, print_errno_num },
404
+
[494] = { "persona", NULL, print_errno_num },
405
+
[499] = { "work_interval_ctl", NULL, print_errno_num },
406
+
[500] = { "getentropy", NULL, print_errno_num },
407
+
[501] = { "necp_open", NULL, print_errno_num },
408
+
[502] = { "necp_client_action", NULL, print_errno_num },
409
+
[515] = { "ulock_wait", NULL, print_errno_num },
410
+
[516] = { "ulock_wake", NULL, print_errno_num },
411
+
[517] = { "fclonefileat", NULL, print_errno_num },
412
+
[518] = { "fs_snapshot", NULL, print_errno_num },
413
+
[520] = { "terminate_with_payload", NULL, print_errno_num },
414
+
[521] = { "abort_with_payload", NULL, print_errno_num },
415
+
};
416
+
417
+
extern "C"
418
+
void darling_bsd_syscall_entry_print(int nr, void* args[])
419
+
{
420
+
bsd_call_nr = nr;
421
+
handle_generic_entry(bsd_defs, "bsd", bsd_call_nr, args);
422
+
}
423
+
424
+
extern "C"
425
+
void darling_bsd_syscall_exit_print(uintptr_t retval)
426
+
{
427
+
handle_generic_exit(bsd_defs, "bsd", bsd_call_nr, retval);
428
+
bsd_call_nr = -1;
429
+
}
430
+
431
+
const char* error_strings[128] = {
432
+
[1] = "EPERM",
433
+
[2] = "ENOENT",
434
+
[3] = "ESRCH",
435
+
[4] = "EINTR",
436
+
[5] = "EIO",
437
+
[6] = "ENXIO",
438
+
[7] = "E2BIG",
439
+
[8] = "ENOEXEC",
440
+
[9] = "EBADF",
441
+
[10] = "ECHILD",
442
+
[11] = "EDEADLK",
443
+
[12] = "ENOMEM",
444
+
[13] = "EACCES",
445
+
[14] = "EFAULT",
446
+
[15] = "ENOTBLK",
447
+
[16] = "EBUSY",
448
+
[17] = "EEXIST",
449
+
[18] = "EXDEV",
450
+
[19] = "ENODEV",
451
+
[20] = "ENOTDIR",
452
+
[21] = "EISDIR",
453
+
[22] = "EINVAL",
454
+
[23] = "ENFILE",
455
+
[24] = "EMFILE",
456
+
[25] = "ENOTTY",
457
+
[26] = "ETXTBSY",
458
+
[27] = "EFBIG",
459
+
[28] = "ENOSPC",
460
+
[29] = "ESPIPE",
461
+
[30] = "EROFS",
462
+
[31] = "EMLINK",
463
+
[32] = "EPIPE",
464
+
[33] = "EDOM",
465
+
[34] = "ERANGE",
466
+
[35] = "EAGAIN",
467
+
[36] = "EINPROGRESS",
468
+
[37] = "EALREADY",
469
+
[38] = "ENOTSOCK",
470
+
[39] = "EDESTADDRREQ",
471
+
[40] = "EMSGSIZE",
472
+
[41] = "EPROTOTYPE",
473
+
[42] = "ENOPROTOOPT",
474
+
[43] = "EPROTONOSUPPORT",
475
+
[44] = "ESOCKTNOSUPPORT",
476
+
[45] = "ENOTSUP",
477
+
[46] = "EPFNOSUPPORT",
478
+
[47] = "EAFNOSUPPORT",
479
+
[48] = "EADDRINUSE",
480
+
[49] = "EADDRNOTAVAIL",
481
+
[50] = "ENETDOWN",
482
+
[51] = "ENETUNREACH",
483
+
[52] = "ENETRESET",
484
+
[53] = "ECONNABORTED",
485
+
[54] = "ECONNRESET",
486
+
[55] = "ENOBUFS",
487
+
[56] = "EISCONN",
488
+
[57] = "ENOTCONN",
489
+
[58] = "ESHUTDOWN",
490
+
[59] = "ETOOMANYREFS",
491
+
[60] = "ETIMEDOUT",
492
+
[61] = "ECONNREFUSED",
493
+
[62] = "ELOOP",
494
+
[63] = "ENAMETOOLONG",
495
+
[64] = "EHOSTDOWN",
496
+
[65] = "EHOSTUNREACH",
497
+
[66] = "ENOTEMPTY",
498
+
[67] = "EPROCLIM",
499
+
[68] = "EUSERS",
500
+
[69] = "EDQUOT",
501
+
[70] = "ESTALE",
502
+
[71] = "EREMOTE",
503
+
[72] = "EBADRPC",
504
+
[73] = "ERPCMISMATCH",
505
+
[74] = "EPROGUNAVAIL",
506
+
[75] = "EPROGMISMATCH",
507
+
[76] = "EPROCUNAVAIL",
508
+
[77] = "ENOLCK",
509
+
[78] = "ENOSYS",
510
+
[79] = "EFTYPE",
511
+
[80] = "EAUTH",
512
+
[81] = "ENEEDAUTH",
513
+
[82] = "EPWROFF",
514
+
[83] = "EDEVERR",
515
+
[84] = "EOVERFLOW",
516
+
[85] = "EBADEXEC",
517
+
[86] = "EBADARCH",
518
+
[87] = "ESHLIBVERS",
519
+
[88] = "EBADMACHO",
520
+
[89] = "ECANCELED",
521
+
[90] = "EIDRM",
522
+
[91] = "ENOMSG",
523
+
[92] = "EILSEQ",
524
+
[93] = "ENOATTR",
525
+
[94] = "EBADMSG",
526
+
[95] = "EMULTIHOP",
527
+
[96] = "ENODATA",
528
+
[97] = "ENOLINK",
529
+
[98] = "ENOSR",
530
+
[99] = "ENOSTR",
531
+
[100] = "EPROTO",
532
+
[101] = "ETIME",
533
+
[102] = "EOPNOTSUPP",
534
+
[103] = "ENOPOLICY",
535
+
[104] = "ENOTRECOVERABLE",
536
+
[105] = "EOWNERDEAD",
537
+
[106] = "EQFULL",
538
+
};
539
+
540
+
static void print_errno_num(char* buf, uintptr_t rv)
541
+
{
542
+
intptr_t v = (intptr_t)rv;
543
+
if (v >= 0 || v < -4095)
544
+
{
545
+
__simple_sprintf(buf, "%d", rv);
546
+
}
547
+
else
548
+
print_errno(buf, rv);
549
+
}
550
+
551
+
static void print_errno_ptr(char* buf, uintptr_t rv)
552
+
{
553
+
intptr_t v = (intptr_t)rv;
554
+
if (v >= 0 || v < -4095)
555
+
{
556
+
__simple_sprintf(buf, "%p", rv);
557
+
}
558
+
else
559
+
print_errno(buf, rv);
560
+
}
561
+
562
+
static void print_errno(char* buf, uintptr_t rv)
563
+
{
564
+
const char* error = NULL;
565
+
intptr_t v = (intptr_t)rv;
566
+
if (-v < 128)
567
+
error = error_strings[-v];
568
+
if (error != NULL)
569
+
__simple_sprintf(buf, "%s", error);
570
+
else
571
+
__simple_sprintf(buf, "%d", v);
572
+
}
573
+
+4
-2
src/xtrace/simple.c
+4
-2
src/xtrace/simple.c
···
1
1
#include "simple.h"
2
2
#include <stdarg.h>
3
3
#include <stddef.h>
4
-
#include <unistd.h>
5
4
6
5
void __simple_vsprintf(char* buf, const char* format, va_list vl);
7
6
extern char* memchr(char* buf, int c, __SIZE_TYPE__ n);
7
+
8
+
// We cannot call standard write(), because it would loop back to xtrace
9
+
extern int __write_for_xtrace(int fd, const void* mem, __SIZE_TYPE__ count);
8
10
9
11
int __simple_strlen(const char* text)
10
12
{
···
123
125
__simple_vsprintf(buffer, format, vl);
124
126
va_end(vl);
125
127
126
-
write(2, buffer, __simple_strlen(buffer));
128
+
__write_for_xtrace(2, buffer, __simple_strlen(buffer));
127
129
}
128
130
129
131
void __simple_sprintf(char *buffer, const char* format, ...)
+13
src/xtrace/trampoline.S
+13
src/xtrace/trampoline.S
···
34
34
trampoline_leave
35
35
ret
36
36
37
+
.private_extern _darling_bsd_syscall_entry_trampoline
38
+
_darling_bsd_syscall_entry_trampoline:
39
+
trampoline_enter
40
+
call _darling_bsd_syscall_entry_print
41
+
trampoline_leave
42
+
ret
43
+
44
+
.private_extern _darling_bsd_syscall_exit_trampoline
45
+
_darling_bsd_syscall_exit_trampoline:
46
+
trampoline_enter
47
+
call _darling_bsd_syscall_exit_print
48
+
trampoline_leave
49
+
ret
37
50
+39
-12
src/xtrace/xtracelib.c
+39
-12
src/xtrace/xtracelib.c
···
9
9
// Defined in assembly
10
10
extern void darling_mach_syscall_entry_trampoline(void);
11
11
extern void darling_mach_syscall_exit_trampoline(void);
12
+
extern void darling_bsd_syscall_entry_trampoline(void);
13
+
extern void darling_bsd_syscall_exit_trampoline(void);
12
14
extern int sys_thread_selfid(void);
13
15
14
16
#ifdef __x86_64__
···
24
26
// Defined in libsystem_kernel
25
27
extern struct hook* _darling_mach_syscall_entry;
26
28
extern struct hook* _darling_mach_syscall_exit;
29
+
extern struct hook* _darling_bsd_syscall_entry;
30
+
extern struct hook* _darling_bsd_syscall_exit;
31
+
32
+
static void xtrace_setup_mach(void);
33
+
static void xtrace_setup_bsd(void);
34
+
static void setup_hook(struct hook* hook, void* fnptr);
27
35
28
36
__attribute__((constructor))
29
37
void xtrace_setup()
30
38
{
39
+
xtrace_setup_mach();
40
+
xtrace_setup_bsd();
41
+
}
42
+
43
+
static void setup_hook(struct hook* hook, void* fnptr)
44
+
{
45
+
hook->movabs[0] = 0x49;
46
+
hook->movabs[1] = 0xbc;
47
+
hook->call[0] = 0x41;
48
+
hook->call[1] = 0xff;
49
+
hook->call[2] = 0xd4;
50
+
hook->addr = (uintptr_t)fnptr;
51
+
}
52
+
53
+
static void xtrace_setup_mach(void)
54
+
{
31
55
uintptr_t area = (uintptr_t)_darling_mach_syscall_entry;
32
56
33
57
// __asm__("int3");
···
35
59
36
60
mprotect((void*) area, 4096, PROT_READ | PROT_WRITE | PROT_EXEC);
37
61
38
-
_darling_mach_syscall_entry->movabs[0] = 0x49;
39
-
_darling_mach_syscall_entry->movabs[1] = 0xbc;
40
-
_darling_mach_syscall_entry->call[0] = 0x41;
41
-
_darling_mach_syscall_entry->call[1] = 0xff;
42
-
_darling_mach_syscall_entry->call[2] = 0xd4;
62
+
setup_hook(_darling_mach_syscall_entry, darling_mach_syscall_entry_trampoline);
63
+
setup_hook(_darling_mach_syscall_exit, darling_mach_syscall_exit_trampoline);
64
+
65
+
mprotect((void*) area, 4096, PROT_READ | PROT_EXEC);
66
+
}
67
+
68
+
static void xtrace_setup_bsd(void)
69
+
{
70
+
uintptr_t area = (uintptr_t)_darling_bsd_syscall_entry;
71
+
72
+
// __asm__("int3");
73
+
area &= ~(4096-1);
43
74
44
-
_darling_mach_syscall_exit->movabs[0] = 0x49;
45
-
_darling_mach_syscall_exit->movabs[1] = 0xbc;
46
-
_darling_mach_syscall_exit->call[0] = 0x41;
47
-
_darling_mach_syscall_exit->call[1] = 0xff;
48
-
_darling_mach_syscall_exit->call[2] = 0xd4;
75
+
mprotect((void*) area, 4096, PROT_READ | PROT_WRITE | PROT_EXEC);
49
76
50
-
_darling_mach_syscall_entry->addr = (uint64_t)darling_mach_syscall_entry_trampoline;
51
-
_darling_mach_syscall_exit->addr = (uint64_t)darling_mach_syscall_exit_trampoline;
77
+
setup_hook(_darling_bsd_syscall_entry, darling_bsd_syscall_entry_trampoline);
78
+
setup_hook(_darling_bsd_syscall_exit, darling_bsd_syscall_exit_trampoline);
52
79
53
80
mprotect((void*) area, 4096, PROT_READ | PROT_EXEC);
54
81
}