source: code/trunk/vendor/modernc.org/libc/libc_darwin_arm64.go@ 823

Last change on this file since 823 was 822, checked in by yakumo.izuru, 22 months ago

Prefer immortal.run over runit and rc.d, use vendored modules
for convenience.

Signed-off-by: Izuru Yakumo <yakumo.izuru@…>
File size: 10.8 KB
Line 
1// Copyright 2020 The Libc Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package libc // import "modernc.org/libc"
6
7import (
8 "strings"
9 "time"
10 "unsafe"
11
12 "golang.org/x/sys/unix"
13 "modernc.org/libc/fcntl"
14 "modernc.org/libc/signal"
15 "modernc.org/libc/sys/types"
16 "modernc.org/libc/utime"
17)
18
19// int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);
20func Xsigaction(t *TLS, signum int32, act, oldact uintptr) int32 {
21 var kact, koldact uintptr
22 if act != 0 {
23 sz := int(unsafe.Sizeof(signal.X__sigaction{}))
24 kact = t.Alloc(sz)
25 defer t.Free(sz)
26 (*signal.X__sigaction)(unsafe.Pointer(kact)).F__sigaction_u.F__sa_handler = (*signal.Sigaction)(unsafe.Pointer(act)).F__sigaction_u.F__sa_handler
27 (*signal.X__sigaction)(unsafe.Pointer(kact)).Fsa_flags = (*signal.Sigaction)(unsafe.Pointer(act)).Fsa_flags
28 Xmemcpy(t, kact+unsafe.Offsetof(signal.X__sigaction{}.Fsa_mask), act+unsafe.Offsetof(signal.Sigaction{}.Fsa_mask), types.Size_t(unsafe.Sizeof(signal.Sigset_t(0))))
29 }
30 if oldact != 0 {
31 panic(todo(""))
32 }
33
34 if _, _, err := unix.Syscall6(unix.SYS_SIGACTION, uintptr(signum), kact, koldact, unsafe.Sizeof(signal.Sigset_t(0)), 0, 0); err != 0 {
35 t.setErrno(err)
36 return -1
37 }
38
39 if oldact != 0 {
40 panic(todo(""))
41 }
42
43 return 0
44}
45
46// int fcntl(int fd, int cmd, ... /* arg */ );
47func Xfcntl64(t *TLS, fd, cmd int32, args uintptr) (r int32) {
48 var err error
49 var p uintptr
50 var i int
51 switch cmd {
52 case fcntl.F_GETLK, fcntl.F_SETLK, fcntl.F_SETLKW:
53 p = *(*uintptr)(unsafe.Pointer(args))
54 err = unix.FcntlFlock(uintptr(fd), int(cmd), (*unix.Flock_t)(unsafe.Pointer(p)))
55 case fcntl.F_GETFL, fcntl.F_FULLFSYNC:
56 i, err = unix.FcntlInt(uintptr(fd), int(cmd), 0)
57 r = int32(i)
58 case fcntl.F_SETFD, fcntl.F_SETFL:
59 arg := *(*int32)(unsafe.Pointer(args))
60 _, err = unix.FcntlInt(uintptr(fd), int(cmd), int(arg))
61 default:
62 panic(todo("%v: %v %v", origin(1), fd, cmd))
63 }
64 if err != nil {
65 if dmesgs {
66 dmesg("%v: fd %v cmd %v p %#x: %v FAIL", origin(1), fcntlCmdStr(fd), cmd, p, err)
67 }
68 t.setErrno(err)
69 return -1
70 }
71
72 if dmesgs {
73 dmesg("%v: %d %s %#x: ok", origin(1), fd, fcntlCmdStr(cmd), p)
74 }
75 return r
76}
77
78// int lstat(const char *pathname, struct stat *statbuf);
79func Xlstat64(t *TLS, pathname, statbuf uintptr) int32 {
80 if err := unix.Lstat(GoString(pathname), (*unix.Stat_t)(unsafe.Pointer(statbuf))); err != nil {
81 if dmesgs {
82 dmesg("%v: %q: %v FAIL", origin(1), GoString(pathname), err)
83 }
84 t.setErrno(err)
85 return -1
86 }
87
88 if dmesgs {
89 dmesg("%v: %q: ok", origin(1), GoString(pathname))
90 }
91 return 0
92}
93
94// int stat(const char *pathname, struct stat *statbuf);
95func Xstat64(t *TLS, pathname, statbuf uintptr) int32 {
96 if err := unix.Stat(GoString(pathname), (*unix.Stat_t)(unsafe.Pointer(statbuf))); err != nil {
97 if dmesgs {
98 dmesg("%v: %q: %v FAIL", origin(1), GoString(pathname), err)
99 }
100 t.setErrno(err)
101 return -1
102 }
103
104 if dmesgs {
105 dmesg("%v: %q: ok", origin(1), GoString(pathname))
106 }
107 return 0
108}
109
110// int fstatfs(int fd, struct statfs *buf);
111func Xfstatfs(t *TLS, fd int32, buf uintptr) int32 {
112 if err := unix.Fstatfs(int(fd), (*unix.Statfs_t)(unsafe.Pointer(buf))); err != nil {
113 if dmesgs {
114 dmesg("%v: %v: %v FAIL", origin(1), fd, err)
115 }
116 t.setErrno(err)
117 return -1
118 }
119
120 if dmesgs {
121 dmesg("%v: %v: ok", origin(1), fd)
122 }
123 return 0
124}
125
126// int statfs(const char *path, struct statfs *buf);
127func Xstatfs(t *TLS, path uintptr, buf uintptr) int32 {
128 if err := unix.Statfs(GoString(path), (*unix.Statfs_t)(unsafe.Pointer(buf))); err != nil {
129 if dmesgs {
130 dmesg("%v: %q: %v FAIL", origin(1), GoString(path), err)
131 }
132 t.setErrno(err)
133 return -1
134 }
135
136 if dmesgs {
137 dmesg("%v: %q: ok", origin(1), GoString(path))
138 }
139 return 0
140}
141
142// int fstat(int fd, struct stat *statbuf);
143func Xfstat64(t *TLS, fd int32, statbuf uintptr) int32 {
144 if err := unix.Fstat(int(fd), (*unix.Stat_t)(unsafe.Pointer(statbuf))); err != nil {
145 if dmesgs {
146 dmesg("%v: fd %d: %v FAIL", origin(1), fd, err)
147 }
148 t.setErrno(err)
149 return -1
150 }
151
152 if dmesgs {
153 dmesg("%v: fd %d: ok", origin(1), fd)
154 }
155 return 0
156}
157
158// off64_t lseek64(int fd, off64_t offset, int whence);
159func Xlseek64(t *TLS, fd int32, offset types.Off_t, whence int32) types.Off_t {
160 n, err := unix.Seek(int(fd), int64(offset), int(whence))
161 if err != nil {
162 if dmesgs {
163 dmesg("%v: %v FAIL", origin(1), err)
164 }
165 t.setErrno(err)
166 return -1
167 }
168
169 if dmesgs {
170 dmesg("%v: ok", origin(1))
171 }
172 return types.Off_t(n)
173}
174
175// int utime(const char *filename, const struct utimbuf *times);
176func Xutime(t *TLS, filename, times uintptr) int32 {
177 var a []unix.Timeval
178 if times != 0 {
179 a = make([]unix.Timeval, 2)
180 a[0].Sec = (*utime.Utimbuf)(unsafe.Pointer(times)).Factime
181 a[1].Sec = (*utime.Utimbuf)(unsafe.Pointer(times)).Fmodtime
182 }
183 if err := unix.Utimes(GoString(filename), a); err != nil {
184 if dmesgs {
185 dmesg("%v: %v FAIL", origin(1), err)
186 }
187 t.setErrno(err)
188 return -1
189 }
190
191 if dmesgs {
192 dmesg("%v: ok", origin(1))
193 }
194 return 0
195}
196
197// unsigned int alarm(unsigned int seconds);
198func Xalarm(t *TLS, seconds uint32) uint32 {
199 panic(todo(""))
200 // n, _, err := unix.Syscall(unix.SYS_ALARM, uintptr(seconds), 0, 0)
201 // if err != 0 {
202 // panic(todo(""))
203 // }
204
205 // return uint32(n)
206}
207
208// time_t time(time_t *tloc);
209func Xtime(t *TLS, tloc uintptr) types.Time_t {
210 n := time.Now().UTC().Unix()
211 if tloc != 0 {
212 *(*types.Time_t)(unsafe.Pointer(tloc)) = types.Time_t(n)
213 }
214 return types.Time_t(n)
215}
216
217// // int getrlimit(int resource, struct rlimit *rlim);
218// func Xgetrlimit64(t *TLS, resource int32, rlim uintptr) int32 {
219// if _, _, err := unix.Syscall(unix.SYS_GETRLIMIT, uintptr(resource), uintptr(rlim), 0); err != 0 {
220// t.setErrno(err)
221// return -1
222// }
223//
224// return 0
225// }
226
227// int mkdir(const char *path, mode_t mode);
228func Xmkdir(t *TLS, path uintptr, mode types.Mode_t) int32 {
229 if err := unix.Mkdir(GoString(path), uint32(mode)); err != nil {
230 if dmesgs {
231 dmesg("%v: %q: %v FAIL", origin(1), GoString(path), err)
232 }
233 t.setErrno(err)
234 return -1
235 }
236
237 if dmesgs {
238 dmesg("%v: %q: ok", origin(1), GoString(path))
239 }
240 return 0
241}
242
243// int symlink(const char *target, const char *linkpath);
244func Xsymlink(t *TLS, target, linkpath uintptr) int32 {
245 if err := unix.Symlink(GoString(target), GoString(linkpath)); err != nil {
246 if dmesgs {
247 dmesg("%v: %v FAIL", origin(1), err)
248 }
249 t.setErrno(err)
250 return -1
251 }
252
253 if dmesgs {
254 dmesg("%v: ok", origin(1))
255 }
256 return 0
257}
258
259// int chmod(const char *pathname, mode_t mode)
260func Xchmod(t *TLS, pathname uintptr, mode types.Mode_t) int32 {
261 if err := unix.Chmod(GoString(pathname), uint32(mode)); err != nil {
262 if dmesgs {
263 dmesg("%v: %q %#o: %v FAIL", origin(1), GoString(pathname), mode, err)
264 }
265 t.setErrno(err)
266 return -1
267 }
268
269 if dmesgs {
270 dmesg("%v: %q %#o: ok", origin(1), GoString(pathname), mode)
271 }
272 return 0
273}
274
275// int utimes(const char *filename, const struct timeval times[2]);
276func Xutimes(t *TLS, filename, times uintptr) int32 {
277 var a []unix.Timeval
278 if times != 0 {
279 a = make([]unix.Timeval, 2)
280 a[0] = *(*unix.Timeval)(unsafe.Pointer(times))
281 a[1] = *(*unix.Timeval)(unsafe.Pointer(times + unsafe.Sizeof(unix.Timeval{})))
282 }
283 if err := unix.Utimes(GoString(filename), a); err != nil {
284 if dmesgs {
285 dmesg("%v: %v FAIL", origin(1), err)
286 }
287 t.setErrno(err)
288 return -1
289 }
290
291 if dmesgs {
292 dmesg("%v: ok", origin(1))
293 }
294 return 0
295}
296
297// int unlink(const char *pathname);
298func Xunlink(t *TLS, pathname uintptr) int32 {
299 if err := unix.Unlink(GoString(pathname)); err != nil {
300 if dmesgs {
301 dmesg("%v: %q: %v", origin(1), GoString(pathname), err)
302 }
303 t.setErrno(err)
304 return -1
305 }
306
307 if dmesgs {
308 dmesg("%v: ok", origin(1))
309 }
310 return 0
311}
312
313// int access(const char *pathname, int mode);
314func Xaccess(t *TLS, pathname uintptr, mode int32) int32 {
315 if err := unix.Access(GoString(pathname), uint32(mode)); err != nil {
316 if dmesgs {
317 dmesg("%v: %q %#o: %v FAIL", origin(1), GoString(pathname), mode, err)
318 }
319 t.setErrno(err)
320 return -1
321 }
322
323 if dmesgs {
324 dmesg("%v: %q %#o: ok", origin(1), GoString(pathname), mode)
325 }
326 return 0
327}
328
329// int rename(const char *oldpath, const char *newpath);
330func Xrename(t *TLS, oldpath, newpath uintptr) int32 {
331 if err := unix.Rename(GoString(oldpath), GoString(newpath)); err != nil {
332 if dmesgs {
333 dmesg("%v: %v FAIL", origin(1), err)
334 }
335 t.setErrno(err)
336 return -1
337 }
338
339 if dmesgs {
340 dmesg("%v: ok", origin(1))
341 }
342 return 0
343}
344
345// int mknod(const char *pathname, mode_t mode, dev_t dev);
346func Xmknod(t *TLS, pathname uintptr, mode types.Mode_t, dev types.Dev_t) int32 {
347 panic(todo(""))
348 // if _, _, err := unix.Syscall(unix.SYS_MKNOD, pathname, uintptr(mode), uintptr(dev)); err != 0 {
349 // t.setErrno(err)
350 // return -1
351 // }
352
353 // return 0
354}
355
356// int chown(const char *pathname, uid_t owner, gid_t group);
357func Xchown(t *TLS, pathname uintptr, owner types.Uid_t, group types.Gid_t) int32 {
358 panic(todo(""))
359 // if _, _, err := unix.Syscall(unix.SYS_CHOWN, pathname, uintptr(owner), uintptr(group)); err != 0 {
360 // t.setErrno(err)
361 // return -1
362 // }
363
364 // return 0
365}
366
367// int link(const char *oldpath, const char *newpath);
368func Xlink(t *TLS, oldpath, newpath uintptr) int32 {
369 if _, _, err := unix.Syscall(unix.SYS_LINK, oldpath, newpath, 0); err != 0 {
370 t.setErrno(err)
371 return -1
372 }
373
374 return 0
375}
376
377// int dup2(int oldfd, int newfd);
378func Xdup2(t *TLS, oldfd, newfd int32) int32 {
379 panic(todo(""))
380 // n, _, err := unix.Syscall(unix.SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
381 // if err != 0 {
382 // t.setErrno(err)
383 // return -1
384 // }
385
386 // return int32(n)
387}
388
389// ssize_t readlink(const char *restrict path, char *restrict buf, size_t bufsize);
390func Xreadlink(t *TLS, path, buf uintptr, bufsize types.Size_t) types.Ssize_t {
391 var n int
392 var err error
393 switch {
394 case buf == 0 || bufsize == 0:
395 n, err = unix.Readlink(GoString(path), nil)
396 default:
397 n, err = unix.Readlink(GoString(path), (*RawMem)(unsafe.Pointer(buf))[:bufsize:bufsize])
398 }
399 if err != nil {
400 if dmesgs {
401 dmesg("%v: %v FAIL", err)
402 }
403 t.setErrno(err)
404 return -1
405 }
406
407 if dmesgs {
408 dmesg("%v: ok")
409 }
410 return types.Ssize_t(n)
411}
412
413// FILE *fopen64(const char *pathname, const char *mode);
414func Xfopen64(t *TLS, pathname, mode uintptr) uintptr {
415 m := strings.ReplaceAll(GoString(mode), "b", "")
416 var flags int
417 switch m {
418 case "r":
419 flags = fcntl.O_RDONLY
420 case "r+":
421 flags = fcntl.O_RDWR
422 case "w":
423 flags = fcntl.O_WRONLY | fcntl.O_CREAT | fcntl.O_TRUNC
424 case "w+":
425 flags = fcntl.O_RDWR | fcntl.O_CREAT | fcntl.O_TRUNC
426 case "a":
427 flags = fcntl.O_WRONLY | fcntl.O_CREAT | fcntl.O_APPEND
428 case "a+":
429 flags = fcntl.O_RDWR | fcntl.O_CREAT | fcntl.O_APPEND
430 default:
431 panic(m)
432 }
433 fd, err := unix.Open(GoString(pathname), int(flags), 0666)
434 if err != nil {
435 if dmesgs {
436 dmesg("%v: %q %q: %v FAIL", origin(1), GoString(pathname), GoString(mode), err)
437 }
438 t.setErrno(err)
439 return 0
440 }
441
442 if dmesgs {
443 dmesg("%v: %q %q: fd %v", origin(1), GoString(pathname), GoString(mode), fd)
444 }
445 if p := newFile(t, int32(fd)); p != 0 {
446 return p
447 }
448
449 panic("OOM")
450}
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