master
1#ifdef __wasilibc_unmodified_upstream
2#ifndef _INTERNAL_SYSCALL_H
3#define _INTERNAL_SYSCALL_H
4
5#include <features.h>
6#include <errno.h>
7#include <sys/syscall.h>
8#include "syscall_arch.h"
9
10#ifndef SYSCALL_RLIM_INFINITY
11#define SYSCALL_RLIM_INFINITY (~0ULL)
12#endif
13
14#ifndef SYSCALL_MMAP2_UNIT
15#define SYSCALL_MMAP2_UNIT 4096ULL
16#endif
17
18#ifndef __SYSCALL_LL_PRW
19#define __SYSCALL_LL_PRW(x) __SYSCALL_LL_O(x)
20#endif
21
22#ifndef __scc
23#define __scc(X) ((long) (X))
24typedef long syscall_arg_t;
25#endif
26
27hidden long __syscall_ret(unsigned long),
28 __syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t,
29 syscall_arg_t, syscall_arg_t, syscall_arg_t);
30
31#define __syscall1(n,a) __syscall1(n,__scc(a))
32#define __syscall2(n,a,b) __syscall2(n,__scc(a),__scc(b))
33#define __syscall3(n,a,b,c) __syscall3(n,__scc(a),__scc(b),__scc(c))
34#define __syscall4(n,a,b,c,d) __syscall4(n,__scc(a),__scc(b),__scc(c),__scc(d))
35#define __syscall5(n,a,b,c,d,e) __syscall5(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e))
36#define __syscall6(n,a,b,c,d,e,f) __syscall6(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f))
37#define __syscall7(n,a,b,c,d,e,f,g) __syscall7(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f),__scc(g))
38
39#define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n
40#define __SYSCALL_NARGS(...) __SYSCALL_NARGS_X(__VA_ARGS__,7,6,5,4,3,2,1,0,)
41#define __SYSCALL_CONCAT_X(a,b) a##b
42#define __SYSCALL_CONCAT(a,b) __SYSCALL_CONCAT_X(a,b)
43#define __SYSCALL_DISP(b,...) __SYSCALL_CONCAT(b,__SYSCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)
44
45#define __syscall(...) __SYSCALL_DISP(__syscall,__VA_ARGS__)
46#define syscall(...) __syscall_ret(__syscall(__VA_ARGS__))
47
48#define socketcall(nm,a,b,c,d,e,f) __syscall_ret(__socketcall(nm,a,b,c,d,e,f))
49#define socketcall_cp(nm,a,b,c,d,e,f) __syscall_ret(__socketcall_cp(nm,a,b,c,d,e,f))
50
51#define __syscall_cp0(n) (__syscall_cp)(n,0,0,0,0,0,0)
52#define __syscall_cp1(n,a) (__syscall_cp)(n,__scc(a),0,0,0,0,0)
53#define __syscall_cp2(n,a,b) (__syscall_cp)(n,__scc(a),__scc(b),0,0,0,0)
54#define __syscall_cp3(n,a,b,c) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),0,0,0)
55#define __syscall_cp4(n,a,b,c,d) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),0,0)
56#define __syscall_cp5(n,a,b,c,d,e) (__syscall_cp)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),0)
57#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))
58
59#define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__)
60#define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))
61
62static inline long __alt_socketcall(int sys, int sock, int cp, syscall_arg_t a, syscall_arg_t b, syscall_arg_t c, syscall_arg_t d, syscall_arg_t e, syscall_arg_t f)
63{
64 long r;
65 if (cp) r = __syscall_cp(sys, a, b, c, d, e, f);
66 else r = __syscall(sys, a, b, c, d, e, f);
67 if (r != -ENOSYS) return r;
68#ifdef SYS_socketcall
69 if (cp) r = __syscall_cp(SYS_socketcall, sock, ((long[6]){a, b, c, d, e, f}));
70 else r = __syscall(SYS_socketcall, sock, ((long[6]){a, b, c, d, e, f}));
71#endif
72 return r;
73}
74#define __socketcall(nm, a, b, c, d, e, f) __alt_socketcall(SYS_##nm, __SC_##nm, 0, \
75 __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f))
76#define __socketcall_cp(nm, a, b, c, d, e, f) __alt_socketcall(SYS_##nm, __SC_##nm, 1, \
77 __scc(a), __scc(b), __scc(c), __scc(d), __scc(e), __scc(f))
78
79/* fixup legacy 16-bit junk */
80
81#ifdef SYS_getuid32
82#undef SYS_lchown
83#undef SYS_getuid
84#undef SYS_getgid
85#undef SYS_geteuid
86#undef SYS_getegid
87#undef SYS_setreuid
88#undef SYS_setregid
89#undef SYS_getgroups
90#undef SYS_setgroups
91#undef SYS_fchown
92#undef SYS_setresuid
93#undef SYS_getresuid
94#undef SYS_setresgid
95#undef SYS_getresgid
96#undef SYS_chown
97#undef SYS_setuid
98#undef SYS_setgid
99#undef SYS_setfsuid
100#undef SYS_setfsgid
101#define SYS_lchown SYS_lchown32
102#define SYS_getuid SYS_getuid32
103#define SYS_getgid SYS_getgid32
104#define SYS_geteuid SYS_geteuid32
105#define SYS_getegid SYS_getegid32
106#define SYS_setreuid SYS_setreuid32
107#define SYS_setregid SYS_setregid32
108#define SYS_getgroups SYS_getgroups32
109#define SYS_setgroups SYS_setgroups32
110#define SYS_fchown SYS_fchown32
111#define SYS_setresuid SYS_setresuid32
112#define SYS_getresuid SYS_getresuid32
113#define SYS_setresgid SYS_setresgid32
114#define SYS_getresgid SYS_getresgid32
115#define SYS_chown SYS_chown32
116#define SYS_setuid SYS_setuid32
117#define SYS_setgid SYS_setgid32
118#define SYS_setfsuid SYS_setfsuid32
119#define SYS_setfsgid SYS_setfsgid32
120#endif
121
122
123/* fixup legacy 32-bit-vs-lfs64 junk */
124
125#ifdef SYS_fcntl64
126#undef SYS_fcntl
127#define SYS_fcntl SYS_fcntl64
128#endif
129
130#ifdef SYS_getdents64
131#undef SYS_getdents
132#define SYS_getdents SYS_getdents64
133#endif
134
135#ifdef SYS_ftruncate64
136#undef SYS_ftruncate
137#undef SYS_truncate
138#define SYS_ftruncate SYS_ftruncate64
139#define SYS_truncate SYS_truncate64
140#endif
141
142#ifdef SYS_stat64
143#undef SYS_stat
144#define SYS_stat SYS_stat64
145#endif
146
147#ifdef SYS_fstat64
148#undef SYS_fstat
149#define SYS_fstat SYS_fstat64
150#endif
151
152#ifdef SYS_lstat64
153#undef SYS_lstat
154#define SYS_lstat SYS_lstat64
155#endif
156
157#ifdef SYS_statfs64
158#undef SYS_statfs
159#define SYS_statfs SYS_statfs64
160#endif
161
162#ifdef SYS_fstatfs64
163#undef SYS_fstatfs
164#define SYS_fstatfs SYS_fstatfs64
165#endif
166
167#if defined(SYS_newfstatat)
168#undef SYS_fstatat
169#define SYS_fstatat SYS_newfstatat
170#elif defined(SYS_fstatat64)
171#undef SYS_fstatat
172#define SYS_fstatat SYS_fstatat64
173#endif
174
175#ifdef SYS_ugetrlimit
176#undef SYS_getrlimit
177#define SYS_getrlimit SYS_ugetrlimit
178#endif
179
180#ifdef SYS__newselect
181#undef SYS_select
182#define SYS_select SYS__newselect
183#endif
184
185#ifdef SYS_pread64
186#undef SYS_pread
187#undef SYS_pwrite
188#define SYS_pread SYS_pread64
189#define SYS_pwrite SYS_pwrite64
190#endif
191
192#ifdef SYS_fadvise64_64
193#undef SYS_fadvise
194#define SYS_fadvise SYS_fadvise64_64
195#elif defined(SYS_fadvise64)
196#undef SYS_fadvise
197#define SYS_fadvise SYS_fadvise64
198#endif
199
200#ifdef SYS_sendfile64
201#undef SYS_sendfile
202#define SYS_sendfile SYS_sendfile64
203#endif
204
205#ifdef SYS_timer_settime32
206#define SYS_timer_settime SYS_timer_settime32
207#endif
208
209#ifdef SYS_timer_gettime32
210#define SYS_timer_gettime SYS_timer_gettime32
211#endif
212
213#ifdef SYS_timerfd_settime32
214#define SYS_timerfd_settime SYS_timerfd_settime32
215#endif
216
217#ifdef SYS_timerfd_gettime32
218#define SYS_timerfd_gettime SYS_timerfd_gettime32
219#endif
220
221#ifdef SYS_clock_settime32
222#define SYS_clock_settime SYS_clock_settime32
223#endif
224
225#ifdef SYS_clock_gettime32
226#define SYS_clock_gettime SYS_clock_gettime32
227#endif
228
229#ifdef SYS_clock_getres_time32
230#define SYS_clock_getres SYS_clock_getres_time32
231#endif
232
233#ifdef SYS_clock_nanosleep_time32
234#define SYS_clock_nanosleep SYS_clock_nanosleep_time32
235#endif
236
237#ifdef SYS_gettimeofday_time32
238#define SYS_gettimeofday SYS_gettimeofday_time32
239#endif
240
241#ifdef SYS_settimeofday_time32
242#define SYS_settimeofday SYS_settimeofday_time32
243#endif
244
245/* Ensure that the plain syscall names are defined even for "time64-only"
246 * archs. These facilitate callers passing null time arguments, and make
247 * tests for establishing which to use/fallback-to more consistent when
248 * they do need to be called with time arguments. */
249
250#ifndef SYS_clock_gettime
251#define SYS_clock_gettime SYS_clock_gettime64
252#endif
253
254#ifndef SYS_clock_settime
255#define SYS_clock_settime SYS_clock_settime64
256#endif
257
258#ifndef SYS_clock_adjtime
259#define SYS_clock_adjtime SYS_clock_adjtime64
260#endif
261
262#ifndef SYS_clock_getres
263#define SYS_clock_getres SYS_clock_getres_time64
264#endif
265
266#ifndef SYS_clock_nanosleep
267#define SYS_clock_nanosleep SYS_clock_nanosleep_time64
268#endif
269
270#ifndef SYS_timer_gettime
271#define SYS_timer_gettime SYS_timer_gettime64
272#endif
273
274#ifndef SYS_timer_settime
275#define SYS_timer_settime SYS_timer_settime64
276#endif
277
278#ifndef SYS_timerfd_gettime
279#define SYS_timerfd_gettime SYS_timerfd_gettime64
280#endif
281
282#ifndef SYS_timerfd_settime
283#define SYS_timerfd_settime SYS_timerfd_settime64
284#endif
285
286#ifndef SYS_utimensat
287#define SYS_utimensat SYS_utimensat_time64
288#endif
289
290#ifndef SYS_pselect6
291#define SYS_pselect6 SYS_pselect6_time64
292#endif
293
294#ifndef SYS_ppoll
295#define SYS_ppoll SYS_ppoll_time64
296#endif
297
298#ifndef SYS_recvmmsg
299#define SYS_recvmmsg SYS_recvmmsg_time64
300#endif
301
302#ifndef SYS_mq_timedsend
303#define SYS_mq_timedsend SYS_mq_timedsend_time64
304#endif
305
306#ifndef SYS_mq_timedreceive
307#define SYS_mq_timedreceive SYS_mq_timedreceive_time64
308#endif
309
310/* SYS_semtimedop omitted because SYS_ipc may provide it */
311
312#ifndef SYS_rt_sigtimedwait
313#define SYS_rt_sigtimedwait SYS_rt_sigtimedwait_time64
314#endif
315
316#ifndef SYS_futex
317#define SYS_futex SYS_futex_time64
318#endif
319
320#ifndef SYS_sched_rr_get_interval
321#define SYS_sched_rr_get_interval SYS_sched_rr_get_interval_time64
322#endif
323
324
325
326
327/* socketcall calls */
328
329#define __SC_socket 1
330#define __SC_bind 2
331#define __SC_connect 3
332#define __SC_listen 4
333#define __SC_accept 5
334#define __SC_getsockname 6
335#define __SC_getpeername 7
336#define __SC_socketpair 8
337#define __SC_send 9
338#define __SC_recv 10
339#define __SC_sendto 11
340#define __SC_recvfrom 12
341#define __SC_shutdown 13
342#define __SC_setsockopt 14
343#define __SC_getsockopt 15
344#define __SC_sendmsg 16
345#define __SC_recvmsg 17
346#define __SC_accept4 18
347#define __SC_recvmmsg 19
348#define __SC_sendmmsg 20
349
350/* This is valid only because all socket syscalls are made via
351 * socketcall, which always fills unused argument slots with zeros. */
352#ifndef SYS_accept
353#define SYS_accept SYS_accept4
354#endif
355
356#ifndef SO_RCVTIMEO_OLD
357#define SO_RCVTIMEO_OLD 20
358#endif
359#ifndef SO_SNDTIMEO_OLD
360#define SO_SNDTIMEO_OLD 21
361#endif
362
363#define SO_TIMESTAMP_OLD 29
364#define SO_TIMESTAMPNS_OLD 35
365#define SO_TIMESTAMPING_OLD 37
366#define SCM_TIMESTAMP_OLD SO_TIMESTAMP_OLD
367#define SCM_TIMESTAMPNS_OLD SO_TIMESTAMPNS_OLD
368#define SCM_TIMESTAMPING_OLD SO_TIMESTAMPING_OLD
369
370#ifndef SIOCGSTAMP_OLD
371#define SIOCGSTAMP_OLD 0x8906
372#endif
373#ifndef SIOCGSTAMPNS_OLD
374#define SIOCGSTAMPNS_OLD 0x8907
375#endif
376
377#ifdef SYS_open
378#define __sys_open2(x,pn,fl) __syscall2(SYS_open, pn, (fl)|O_LARGEFILE)
379#define __sys_open3(x,pn,fl,mo) __syscall3(SYS_open, pn, (fl)|O_LARGEFILE, mo)
380#define __sys_open_cp2(x,pn,fl) __syscall_cp2(SYS_open, pn, (fl)|O_LARGEFILE)
381#define __sys_open_cp3(x,pn,fl,mo) __syscall_cp3(SYS_open, pn, (fl)|O_LARGEFILE, mo)
382#else
383#define __sys_open2(x,pn,fl) __syscall3(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE)
384#define __sys_open3(x,pn,fl,mo) __syscall4(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE, mo)
385#define __sys_open_cp2(x,pn,fl) __syscall_cp3(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE)
386#define __sys_open_cp3(x,pn,fl,mo) __syscall_cp4(SYS_openat, AT_FDCWD, pn, (fl)|O_LARGEFILE, mo)
387#endif
388
389#define __sys_open(...) __SYSCALL_DISP(__sys_open,,__VA_ARGS__)
390#define sys_open(...) __syscall_ret(__sys_open(__VA_ARGS__))
391
392#define __sys_open_cp(...) __SYSCALL_DISP(__sys_open_cp,,__VA_ARGS__)
393#define sys_open_cp(...) __syscall_ret(__sys_open_cp(__VA_ARGS__))
394
395#ifdef SYS_wait4
396#define __sys_wait4(a,b,c,d) __syscall(SYS_wait4,a,b,c,d)
397#define __sys_wait4_cp(a,b,c,d) __syscall_cp(SYS_wait4,a,b,c,d)
398#else
399hidden long __emulate_wait4(int, int *, int, void *, int);
400#define __sys_wait4(a,b,c,d) __emulate_wait4(a,b,c,d,0)
401#define __sys_wait4_cp(a,b,c,d) __emulate_wait4(a,b,c,d,1)
402#endif
403
404#define sys_wait4(a,b,c,d) __syscall_ret(__sys_wait4(a,b,c,d))
405#define sys_wait4_cp(a,b,c,d) __syscall_ret(__sys_wait4_cp(a,b,c,d))
406
407hidden void __procfdname(char __buf[static 15+3*sizeof(int)], unsigned);
408
409hidden void *__vdsosym(const char *, const char *);
410
411#endif
412#endif