about summary refs log tree commit diff
path: root/src/internal/syscall.h
blob: 06c5527f7d934854735869cace2f71ddfe8074b4 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
#ifndef _INTERNAL_SYSCALL_H
#define _INTERNAL_SYSCALL_H

#include <features.h>
#include <sys/syscall.h>
#include "syscall_arch.h"

#ifndef SYSCALL_RLIM_INFINITY
#define SYSCALL_RLIM_INFINITY (~0ULL)
#endif

#ifndef SYSCALL_MMAP2_UNIT
#define SYSCALL_MMAP2_UNIT 4096ULL
#endif

#ifndef __SYSCALL_LL_PRW
#define __SYSCALL_LL_PRW(x) __SYSCALL_LL_O(x)
#endif

#ifndef __scc
#define __scc(X) ((long) (X))
typedef long syscall_arg_t;
#endif

hidden long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
	__syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t,
	             syscall_arg_t, syscall_arg_t, syscall_arg_t);

#ifdef SYSCALL_NO_INLINE
#define __syscall0(n) (__syscall)(n)
#define __syscall1(n,a) (__syscall)(n,__scc(a))
#define __syscall2(n,a,b) (__syscall)(n,__scc(a),__scc(b))
#define __syscall3(n,a,b,c) (__syscall)(n,__scc(a),__scc(b),__scc(c))
#define __syscall4(n,a,b,c,d) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d))
#define __syscall5(n,a,b,c,d,e) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e))
#define __syscall6(n,a,b,c,d,e,f) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))
#else
#define __syscall1(n,a) __syscall1(n,__scc(a))
#define __syscall2(n,a,b) __syscall2(n,__scc(a),__scc(b))
#define __syscall3(n,a,b,c) __syscall3(n,__scc(a),__scc(b),__scc(c))
#define __syscall4(n,a,b,c,d) __syscall4(n,__scc(a),__scc(b),__scc(c),__scc(d))
#define __syscall5(n,a,b,c,d,e) __syscall5(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e))
#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))
#endif
#define __syscall7(n,a,b,c,d,e,f,g) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f),__scc(g))

#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n
#define __SYSCALL_NARGS(...) __SYSCALL_NARGS_X(__VA_ARGS__,7,6,5,4,3,2,1,0,)
#define __SYSCALL_CONCAT_X(a,b) a##b
#define __SYSCALL_CONCAT(a,b) __SYSCALL_CONCAT_X(a,b)
#define __SYSCALL_DISP(b,...) __SYSCALL_CONCAT(b,__SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)

#define __syscall(...) __SYSCALL_DISP(__syscall,__VA_ARGS__)
#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__))

#define socketcall __socketcall
#define socketcall_cp __socketcall_cp

#define __syscall_cp0(n) (__syscall_cp)(n,0,0,0,0,0,0)
#define __syscall_cp1(n,a) (__syscall_cp)(n,__scc(a),0,0,0,0,0)
#define __syscall_cp2(n,a,b) (__syscall_cp)(n,__scc(a),__scc(b),0,0,0,0)
#define __syscall_cp3(n,a,b,c) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),0,0,0)
#define __syscall_cp4(n,a,b,c,d) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),0,0)
#define __syscall_cp5(n,a,b,c,d,e) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),0)
#define __syscall_cp6(n,a,b,c,d,e,f) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))

#define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__)
#define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))

#ifndef SYSCALL_USE_SOCKETCALL
#define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_##nm, a, b, c, d, e, f)
#define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_##nm, a, b, c, d, e, f)
#else
#define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_socketcall, __SC_##nm, \
    ((long [6]){ (long)a, (long)b, (long)c, (long)d, (long)e, (long)f }))
#define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_socketcall, __SC_##nm, \
    ((long [6]){ (long)a, (long)b, (long)c, (long)d, (long)e, (long)f }))
#endif

/* fixup legacy 16-bit junk */

#ifdef SYS_getuid32
#undef SYS_lchown
#undef SYS_getuid
#undef SYS_getgid
#undef SYS_geteuid
#undef SYS_getegid
#undef SYS_setreuid
#undef SYS_setregid
#undef SYS_getgroups
#undef SYS_setgroups
#undef SYS_fchown
#undef SYS_setresuid
#undef SYS_getresuid
#undef SYS_setresgid
#undef SYS_getresgid
#undef SYS_chown
#undef SYS_setuid
#undef SYS_setgid
#undef SYS_setfsuid
#undef SYS_setfsgid
#define SYS_lchown SYS_lchown32
#define SYS_getuid SYS_getuid32
#define SYS_getgid SYS_getgid32
#define SYS_geteuid SYS_geteuid32
#define SYS_getegid SYS_getegid32
#define SYS_setreuid SYS_setreuid32
#define SYS_setregid SYS_setregid32
#define SYS_getgroups SYS_getgroups32
#define SYS_setgroups SYS_setgroups32
#define SYS_fchown SYS_fchown32
#define SYS_setresuid SYS_setresuid32
#define SYS_getresuid SYS_getresuid32
#define SYS_setresgid SYS_setresgid32
#define SYS_getresgid SYS_getresgid32
#define SYS_chown SYS_chown32
#define SYS_setuid SYS_setuid32
#define SYS_setgid SYS_setgid32
#define SYS_setfsuid SYS_setfsuid32
#define SYS_setfsgid SYS_setfsgid32
#endif


/* fixup legacy 32-bit-vs-lfs64 junk */

#ifdef SYS_fcntl64
#undef SYS_fcntl
#define SYS_fcntl SYS_fcntl64
#endif

#ifdef SYS_getdents64
#undef SYS_getdents
#define SYS_getdents SYS_getdents64
#endif

#ifdef SYS_ftruncate64
#undef SYS_ftruncate
#undef SYS_truncate
#define SYS_ftruncate SYS_ftruncate64
#define SYS_truncate SYS_truncate64
#endif

#ifdef SYS_stat64
#undef SYS_stat
#define SYS_stat SYS_stat64
#endif

#ifdef SYS_fstat64
#undef SYS_fstat
#define SYS_fstat SYS_fstat64
#endif

#ifdef SYS_lstat64
#undef SYS_lstat
#define SYS_lstat SYS_lstat64
#endif

#ifdef SYS_statfs64
#undef SYS_statfs
#define SYS_statfs SYS_statfs64
#endif

#ifdef SYS_fstatfs64
#undef SYS_fstatfs
#define SYS_fstatfs SYS_fstatfs64
#endif

#if defined(SYS_newfstatat)
#undef SYS_fstatat
#define SYS_fstatat SYS_newfstatat
#elif defined(SYS_fstatat64)
#undef SYS_fstatat
#define SYS_fstatat SYS_fstatat64
#endif

#ifdef SYS_ugetrlimit
#undef SYS_getrlimit
#define SYS_getrlimit SYS_ugetrlimit
#endif

#ifdef SYS__newselect
#undef SYS_select
#define SYS_select SYS__newselect
#endif

#ifdef SYS_pread64
#undef SYS_pread
#undef SYS_pwrite
#define SYS_pread SYS_pread64
#define SYS_pwrite SYS_pwrite64
#endif

#ifdef SYS_fadvise64_64
#undef SYS_fadvise
#define SYS_fadvise SYS_fadvise64_64
#elif defined(SYS_fadvise64)
#undef SYS_fadvise
#define SYS_fadvise SYS_fadvise64
#endif

#ifdef SYS_sendfile64
#undef SYS_sendfile
#define SYS_sendfile SYS_sendfile64
#endif

/* socketcall calls */

#define __SC_socket      1
#define __SC_bind        2
#define __SC_connect     3
#define __SC_listen      4
#define __SC_accept      5
#define __SC_getsockname 6
#define __SC_getpeername 7
#define __SC_socketpair  8
#define __SC_send        9
#define __SC_recv        10
#define __SC_sendto      11
#define __SC_recvfrom    12
#define __SC_shutdown    13
#define __SC_setsockopt  14
#define __SC_getsockopt  15
#define __SC_sendmsg     16
#define __SC_recvmsg     17
#define __SC_accept4     18
#define __SC_recvmmsg    19
#define __SC_sendmmsg    20

#ifdef SYS_open
#define __sys_open2(x,pn,fl) __syscall2(SYS_open, pn, (fl)|O_LARGEFILE)
#define __sys_open3(x,pn,fl,mo) __syscall3(SYS_open, pn, (fl)|O_LARGEFILE, mo)
#define __sys_open_cp2(x,pn,fl) __syscall_cp2(SYS_open, pn, (fl)|O_LARGEFILE)
#define __sys_open_cp3(x,pn,fl,mo) __syscall_cp3(SYS_open, pn, (fl)|O_LARGEFILE, mo)
#else
#define __sys_open2(x,pn,fl) __syscall3(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE)
#define __sys_open3(x,pn,fl,mo) __syscall4(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE, mo)
#define __sys_open_cp2(x,pn,fl) __syscall_cp3(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE)
#define __sys_open_cp3(x,pn,fl,mo) __syscall_cp4(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE, mo)
#endif

#define __sys_open(...) __SYSCALL_DISP(__sys_open,,__VA_ARGS__)
#define sys_open(...) __syscall_ret(__sys_open(__VA_ARGS__))

#define __sys_open_cp(...) __SYSCALL_DISP(__sys_open_cp,,__VA_ARGS__)
#define sys_open_cp(...) __syscall_ret(__sys_open_cp(__VA_ARGS__))

hidden void __procfdname(char __buf[static 15+3*sizeof(int)], unsigned);

hidden void *__vdsosym(const char *, const char *);

#endif