1 | //===-- sanitizer_haiku.cpp -----------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file is shared between Sanitizer run-time libraries and implements |
10 | // Haiku-specific functions from sanitizer_libc.h. |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #include "sanitizer_platform.h" |
14 | |
15 | #if SANITIZER_HAIKU |
16 | |
17 | # include "sanitizer_common.h" |
18 | # include "sanitizer_flags.h" |
19 | # include "sanitizer_getauxval.h" |
20 | # include "sanitizer_internal_defs.h" |
21 | # include "sanitizer_libc.h" |
22 | # include "sanitizer_linux.h" |
23 | # include "sanitizer_mutex.h" |
24 | # include "sanitizer_placement_new.h" |
25 | # include "sanitizer_procmaps.h" |
26 | |
27 | # include <sys/param.h> |
28 | # include <sys/types.h> |
29 | |
30 | # include <sys/mman.h> |
31 | # include <sys/resource.h> |
32 | # include <sys/stat.h> |
33 | # include <sys/time.h> |
34 | |
35 | # include <dlfcn.h> |
36 | # include <errno.h> |
37 | # include <fcntl.h> |
38 | # include <limits.h> |
39 | # include <link.h> |
40 | # include <pthread.h> |
41 | # include <sched.h> |
42 | # include <signal.h> |
43 | # include <unistd.h> |
44 | |
45 | # include "system/vm_defs.h" |
46 | # include "system/syscalls.h" |
47 | # include "shared/syscall_utils.h" |
48 | |
49 | namespace __sanitizer { |
50 | |
51 | static void *GetRealLibcAddress(const char *symbol) { |
52 | void *real = dlsym(RTLD_NEXT, symbol); |
53 | if (!real) |
54 | real = dlsym(RTLD_DEFAULT, symbol); |
55 | if (!real) { |
56 | Printf("GetRealLibcAddress failed for symbol=%s" , symbol); |
57 | Die(); |
58 | } |
59 | return real; |
60 | } |
61 | |
62 | # define _REAL(func, ...) real##_##func(__VA_ARGS__) |
63 | # define DEFINE__REAL(ret_type, func, ...) \ |
64 | static ret_type (*real_##func)(__VA_ARGS__) = NULL; \ |
65 | if (!real_##func) { \ |
66 | real_##func = (ret_type(*)(__VA_ARGS__))GetRealLibcAddress(#func); \ |
67 | } \ |
68 | CHECK(real_##func); |
69 | |
70 | // --------------- sanitizer_libc.h |
71 | uptr internal_mmap(void *addr, uptr length, int prot, int flags, int fd, |
72 | u64 offset) { |
73 | if ((flags & MAP_ANONYMOUS) != 0) |
74 | fd = -1; |
75 | |
76 | int mapping = |
77 | (flags & MAP_SHARED) != 0 ? REGION_NO_PRIVATE_MAP : REGION_PRIVATE_MAP; |
78 | |
79 | uint32 addressSpec; |
80 | if ((flags & MAP_FIXED) != 0) |
81 | addressSpec = B_EXACT_ADDRESS; |
82 | else if (addr != NULL) |
83 | addressSpec = B_BASE_ADDRESS; |
84 | else |
85 | addressSpec = B_RANDOMIZED_ANY_ADDRESS; |
86 | |
87 | uint32 areaProtection = 0; |
88 | if ((prot & PROT_READ) != 0) |
89 | areaProtection |= B_READ_AREA; |
90 | if ((prot & PROT_WRITE) != 0) |
91 | areaProtection |= B_WRITE_AREA; |
92 | if ((prot & PROT_EXEC) != 0) |
93 | areaProtection |= B_EXECUTE_AREA; |
94 | |
95 | if ((flags & MAP_NORESERVE) != 0) |
96 | areaProtection |= B_OVERCOMMITTING_AREA; |
97 | |
98 | area_id area = _kern_map_file("sanitizer mmap" , &addr, addressSpec, length, |
99 | areaProtection, mapping, true, fd, offset); |
100 | if (area < 0) |
101 | RETURN_AND_SET_ERRNO(area); |
102 | return (uptr)addr; |
103 | } |
104 | |
105 | uptr internal_munmap(void *addr, uptr length) { |
106 | DEFINE__REAL(int, munmap, void *a, uptr b); |
107 | return _REAL(munmap, addr, length); |
108 | } |
109 | |
110 | uptr internal_mremap(void *old_address, uptr old_size, uptr new_size, int flags, |
111 | void *new_address) { |
112 | CHECK(false && "internal_mremap is unimplemented on Haiku" ); |
113 | return 0; |
114 | } |
115 | |
116 | int internal_mprotect(void *addr, uptr length, int prot) { |
117 | DEFINE__REAL(int, mprotect, void *a, uptr b, int c); |
118 | return _REAL(mprotect, addr, length, prot); |
119 | } |
120 | |
121 | int internal_madvise(uptr addr, uptr length, int advice) { |
122 | DEFINE__REAL(int, madvise, void *a, uptr b, int c); |
123 | return _REAL(madvise, (void *)addr, length, advice); |
124 | } |
125 | |
126 | uptr internal_close(fd_t fd) { |
127 | CHECK(&_kern_close); |
128 | RETURN_AND_SET_ERRNO(_kern_close(fd)); |
129 | } |
130 | |
131 | uptr internal_open(const char *filename, int flags) { |
132 | CHECK(&_kern_open); |
133 | RETURN_AND_SET_ERRNO(_kern_open(-1, filename, flags, 0)); |
134 | } |
135 | |
136 | uptr internal_open(const char *filename, int flags, u32 mode) { |
137 | CHECK(&_kern_open); |
138 | RETURN_AND_SET_ERRNO(_kern_open(-1, filename, flags, mode)); |
139 | } |
140 | |
141 | uptr internal_read(fd_t fd, void *buf, uptr count) { |
142 | sptr res; |
143 | CHECK(&_kern_read); |
144 | HANDLE_EINTR(res, (sptr)_kern_read(fd, -1, buf, (size_t)count)); |
145 | RETURN_AND_SET_ERRNO(res); |
146 | return res; |
147 | } |
148 | |
149 | uptr internal_write(fd_t fd, const void *buf, uptr count) { |
150 | sptr res; |
151 | CHECK(&_kern_write); |
152 | HANDLE_EINTR(res, (sptr)_kern_write(fd, -1, buf, count)); |
153 | RETURN_AND_SET_ERRNO(res); |
154 | return res; |
155 | } |
156 | |
157 | uptr internal_ftruncate(fd_t fd, uptr size) { |
158 | sptr res; |
159 | DEFINE__REAL(int, ftruncate, int, off_t); |
160 | return _REAL(ftruncate, fd, size); |
161 | return res; |
162 | } |
163 | |
164 | uptr internal_stat(const char *path, void *buf) { |
165 | DEFINE__REAL(int, _stat_current, const char *a, void *b); |
166 | return _REAL(_stat_current, path, buf); |
167 | } |
168 | |
169 | uptr internal_lstat(const char *path, void *buf) { |
170 | DEFINE__REAL(int, _lstat_current, const char *a, void *b); |
171 | return _REAL(_lstat_current, path, buf); |
172 | } |
173 | |
174 | uptr internal_fstat(fd_t fd, void *buf) { |
175 | DEFINE__REAL(int, _fstat_current, int a, void *b); |
176 | return _REAL(_fstat_current, fd, buf); |
177 | } |
178 | |
179 | uptr internal_filesize(fd_t fd) { |
180 | struct stat st; |
181 | if (internal_fstat(fd, &st)) |
182 | return -1; |
183 | return (uptr)st.st_size; |
184 | } |
185 | |
186 | uptr internal_dup(int oldfd) { |
187 | DEFINE__REAL(int, dup, int a); |
188 | return _REAL(dup, oldfd); |
189 | } |
190 | |
191 | uptr internal_dup2(int oldfd, int newfd) { |
192 | DEFINE__REAL(int, dup2, int a, int b); |
193 | return _REAL(dup2, oldfd, newfd); |
194 | } |
195 | |
196 | uptr internal_readlink(const char *path, char *buf, uptr bufsize) { |
197 | CHECK(&_kern_read_link); |
198 | RETURN_AND_SET_ERRNO(_kern_read_link(-1, path, buf, &bufsize)); |
199 | } |
200 | |
201 | uptr internal_unlink(const char *path) { |
202 | DEFINE__REAL(int, unlink, const char *a); |
203 | return _REAL(unlink, path); |
204 | } |
205 | |
206 | uptr internal_rename(const char *oldpath, const char *newpath) { |
207 | DEFINE__REAL(int, rename, const char *a, const char *b); |
208 | return _REAL(rename, oldpath, newpath); |
209 | } |
210 | |
211 | uptr internal_sched_yield() { |
212 | CHECK(&_kern_thread_yield); |
213 | _kern_thread_yield(); |
214 | return 0; |
215 | } |
216 | |
217 | void internal__exit(int exitcode) { |
218 | DEFINE__REAL(void, _exit, int a); |
219 | _REAL(_exit, exitcode); |
220 | Die(); // Unreachable. |
221 | } |
222 | |
223 | void internal_usleep(u64 useconds) { |
224 | _kern_snooze_etc(useconds, B_SYSTEM_TIMEBASE, B_RELATIVE_TIMEOUT, NULL); |
225 | } |
226 | |
227 | uptr internal_execve(const char *filename, char *const argv[], |
228 | char *const envp[]) { |
229 | DEFINE__REAL(int, execve, const char *, char *const[], char *const[]); |
230 | return _REAL(execve, filename, argv, envp); |
231 | } |
232 | |
233 | # if 0 |
234 | tid_t GetTid() { |
235 | DEFINE__REAL(int, _lwp_self); |
236 | return _REAL(_lwp_self); |
237 | } |
238 | |
239 | int TgKill(pid_t pid, tid_t tid, int sig) { |
240 | DEFINE__REAL(int, _lwp_kill, int a, int b); |
241 | (void)pid; |
242 | return _REAL(_lwp_kill, tid, sig); |
243 | } |
244 | |
245 | u64 NanoTime() { |
246 | timeval tv; |
247 | DEFINE__REAL(int, __gettimeofday50, void *a, void *b); |
248 | internal_memset(&tv, 0, sizeof(tv)); |
249 | _REAL(__gettimeofday50, &tv, 0); |
250 | return (u64)tv.tv_sec * 1000 * 1000 * 1000 + tv.tv_usec * 1000; |
251 | } |
252 | # endif |
253 | |
254 | uptr internal_clock_gettime(__sanitizer_clockid_t clk_id, void *tp) { |
255 | DEFINE__REAL(int, __clock_gettime50, __sanitizer_clockid_t a, void *b); |
256 | return _REAL(__clock_gettime50, clk_id, tp); |
257 | } |
258 | |
259 | uptr internal_ptrace(int request, int pid, void *addr, int data) { |
260 | DEFINE__REAL(int, ptrace, int a, int b, void *c, int d); |
261 | return _REAL(ptrace, request, pid, addr, data); |
262 | } |
263 | |
264 | uptr internal_waitpid(int pid, int *status, int options) { |
265 | DEFINE__REAL(int, waitpid, pid_t, int *, int); |
266 | return _REAL(waitpid, pid, status, options); |
267 | } |
268 | |
269 | uptr internal_getpid() { |
270 | DEFINE__REAL(int, getpid); |
271 | return _REAL(getpid); |
272 | } |
273 | |
274 | uptr internal_getppid() { |
275 | DEFINE__REAL(int, getppid); |
276 | return _REAL(getppid); |
277 | } |
278 | |
279 | int internal_dlinfo(void *handle, int request, void *p) { |
280 | DEFINE__REAL(int, dlinfo, void *a, int b, void *c); |
281 | return _REAL(dlinfo, handle, request, p); |
282 | } |
283 | |
284 | uptr internal_getdents(fd_t fd, void *dirp, unsigned int count) { |
285 | DEFINE__REAL(int, __getdents30, int a, void *b, size_t c); |
286 | return _REAL(__getdents30, fd, dirp, count); |
287 | } |
288 | |
289 | uptr internal_lseek(fd_t fd, OFF_T offset, int whence) { |
290 | CHECK(&_kern_seek); |
291 | off_t result = _kern_seek(fd, offset, whence); |
292 | if (result < 0) { |
293 | errno = result; |
294 | return -1; |
295 | } |
296 | return result; |
297 | } |
298 | |
299 | uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) { |
300 | Printf("internal_prctl not implemented for Haiku" ); |
301 | Die(); |
302 | return 0; |
303 | } |
304 | |
305 | uptr internal_sigaltstack(const void *ss, void *oss) { |
306 | DEFINE__REAL(int, __sigaltstack14, const void *a, void *b); |
307 | return _REAL(__sigaltstack14, ss, oss); |
308 | } |
309 | |
310 | int internal_fork() { |
311 | DEFINE__REAL(int, fork); |
312 | return _REAL(fork); |
313 | } |
314 | |
315 | # if 0 |
316 | int internal_sysctl(const int *name, unsigned int namelen, void *oldp, |
317 | uptr *oldlenp, const void *newp, uptr newlen) { |
318 | CHECK(&__sysctl); |
319 | return __sysctl(name, namelen, oldp, (size_t *)oldlenp, newp, (size_t)newlen); |
320 | } |
321 | # endif |
322 | |
323 | int internal_sysctlbyname(const char *sname, void *oldp, uptr *oldlenp, |
324 | const void *newp, uptr newlen) { |
325 | DEFINE__REAL(int, sysctlbyname, const char *a, void *b, size_t *c, |
326 | const void *d, size_t e); |
327 | return _REAL(sysctlbyname, sname, oldp, (size_t *)oldlenp, newp, |
328 | (size_t)newlen); |
329 | } |
330 | |
331 | uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set, |
332 | __sanitizer_sigset_t *oldset) { |
333 | CHECK(&_kern_set_signal_mask); |
334 | return _kern_set_signal_mask(how, set, oldset); |
335 | } |
336 | |
337 | void internal_sigfillset(__sanitizer_sigset_t *set) { |
338 | DEFINE__REAL(int, __sigfillset14, const void *a); |
339 | (void)_REAL(__sigfillset14, set); |
340 | } |
341 | |
342 | void internal_sigemptyset(__sanitizer_sigset_t *set) { |
343 | DEFINE__REAL(int, __sigemptyset14, const void *a); |
344 | (void)_REAL(__sigemptyset14, set); |
345 | } |
346 | |
347 | void internal_sigdelset(__sanitizer_sigset_t *set, int signo) { |
348 | DEFINE__REAL(int, __sigdelset14, const void *a, int b); |
349 | (void)_REAL(__sigdelset14, set, signo); |
350 | } |
351 | |
352 | uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, |
353 | void *arg) { |
354 | DEFINE__REAL(int, clone, int (*a)(void *b), void *c, int d, void *e); |
355 | |
356 | return _REAL(clone, fn, child_stack, flags, arg); |
357 | } |
358 | |
359 | } // namespace __sanitizer |
360 | |
361 | #endif |
362 | |