Commit | Line | Data |
---|---|---|
957a9eac | 1 | /* |
f89d8471 | 2 | * (C) GraÅžvydas "notaz" Ignotas, 2008-2012 |
957a9eac | 3 | * |
4 | * This work is licensed under the terms of any of these licenses | |
5 | * (at your option): | |
6 | * - GNU GPL, version 2 or later. | |
7 | * - GNU LGPL, version 2.1 or later. | |
f89d8471 | 8 | * - MAME license. |
957a9eac | 9 | * See the COPYING file in the top-level directory. |
10 | */ | |
11 | ||
705bdf63 | 12 | #define _GNU_SOURCE 1 |
4ab30ad4 | 13 | #include <stdio.h> |
d2f29611 | 14 | #include <string.h> |
2b9f9c51 | 15 | #include <stdarg.h> |
049a6b3e | 16 | #include <dirent.h> |
4ab30ad4 | 17 | #include <sys/time.h> |
18 | #include <time.h> | |
19 | #include <unistd.h> | |
997b2e4f | 20 | #include <sys/mman.h> |
ca69c3e5 | 21 | #include <errno.h> |
c52e6628 | 22 | #include <sys/stat.h> |
4ab30ad4 | 23 | |
a86e9a3e | 24 | #include "../plat.h" |
049a6b3e | 25 | |
ca69c3e5 | 26 | /* XXX: maybe unhardcode pagesize? */ |
27 | #define HUGETLB_PAGESIZE (2 * 1024 * 1024) | |
28 | #define HUGETLB_THRESHOLD (HUGETLB_PAGESIZE / 2) | |
29 | #ifndef MAP_HUGETLB | |
30 | #define MAP_HUGETLB 0x40000 /* arch specific */ | |
31 | #endif | |
32 | ||
049a6b3e | 33 | |
34 | int plat_is_dir(const char *path) | |
35 | { | |
36 | DIR *dir; | |
37 | if ((dir = opendir(path))) { | |
38 | closedir(dir); | |
39 | return 1; | |
40 | } | |
41 | return 0; | |
42 | } | |
43 | ||
a23a278d | 44 | int plat_get_data_dir(char *dst, int len) |
45 | { | |
46 | if (len > 1) | |
47 | strcpy(dst, "/"); | |
48 | else *dst = 0; | |
49 | return strlen(dst); | |
50 | } | |
51 | ||
52 | static int plat_get_exe_dir(char *dst, int len) | |
d2f29611 | 53 | { |
c52e6628 PC |
54 | #ifdef PICO_DATA_DIR |
55 | memcpy(dst, PICO_DATA_DIR, sizeof PICO_DATA_DIR); | |
56 | return sizeof(PICO_DATA_DIR) - 1; | |
57 | #else | |
58 | int j, ret = readlink("/proc/self/exe", dst, len - 1); | |
2b9f9c51 | 59 | if (ret < 0) { |
60 | perror("readlink"); | |
61 | ret = 0; | |
62 | } | |
63 | dst[ret] = 0; | |
d2f29611 | 64 | |
c52e6628 | 65 | for (j = ret - 1; j > 0; j--) |
2b9f9c51 | 66 | if (dst[j] == '/') { |
67 | dst[++j] = 0; | |
68 | break; | |
69 | } | |
f35e50ef | 70 | return j; |
c52e6628 PC |
71 | #endif |
72 | } | |
73 | ||
74 | int plat_get_skin_dir(char *dst, int len) | |
75 | { | |
a23a278d | 76 | int ret = plat_get_exe_dir(dst, len); |
c52e6628 | 77 | if (ret < 0) |
7a431548 | 78 | ret = 0; |
c52e6628 PC |
79 | |
80 | memcpy(dst + ret, "skin/", sizeof "skin/"); | |
81 | return ret + sizeof("skin/") - 1; | |
82 | } | |
83 | ||
84 | #ifndef PICO_HOME_DIR | |
85 | #define PICO_HOME_DIR "/.picodrive/" | |
86 | #endif | |
87 | int plat_get_root_dir(char *dst, int len) | |
88 | { | |
e50d6e06 | 89 | #if !defined(NO_HOME_DIR) && !defined(__GP2X__) && !defined(PANDORA) |
af7e5006 | 90 | const char *home = getenv("HOME"); |
91 | int ret; | |
c52e6628 | 92 | |
af7e5006 | 93 | if (home != NULL) { |
94 | ret = snprintf(dst, len, "%s%s", home, PICO_HOME_DIR); | |
95 | if (ret >= len) | |
96 | ret = len - 1; | |
97 | mkdir(dst, 0755); | |
98 | return ret; | |
99 | } | |
c52e6628 | 100 | #endif |
a23a278d | 101 | return plat_get_exe_dir(dst, len); |
d2f29611 | 102 | } |
103 | ||
b5bfb864 | 104 | #ifdef __GP2X__ |
105 | /* Wiz has a borked gettimeofday().. */ | |
1eb704b6 | 106 | #define plat_get_ticks_ms plat_get_ticks_ms_good |
107 | #define plat_get_ticks_us plat_get_ticks_us_good | |
b5bfb864 | 108 | #endif |
109 | ||
4ab30ad4 | 110 | unsigned int plat_get_ticks_ms(void) |
111 | { | |
112 | struct timeval tv; | |
113 | unsigned int ret; | |
114 | ||
115 | gettimeofday(&tv, NULL); | |
116 | ||
117 | ret = (unsigned)tv.tv_sec * 1000; | |
b5bfb864 | 118 | /* approximate /= 1000 */ |
4ab30ad4 | 119 | ret += ((unsigned)tv.tv_usec * 4195) >> 22; |
120 | ||
121 | return ret; | |
122 | } | |
123 | ||
b5bfb864 | 124 | unsigned int plat_get_ticks_us(void) |
125 | { | |
126 | struct timeval tv; | |
127 | unsigned int ret; | |
128 | ||
129 | gettimeofday(&tv, NULL); | |
130 | ||
131 | ret = (unsigned)tv.tv_sec * 1000000; | |
132 | ret += (unsigned)tv.tv_usec; | |
133 | ||
134 | return ret; | |
135 | } | |
136 | ||
4ab30ad4 | 137 | void plat_sleep_ms(int ms) |
138 | { | |
139 | usleep(ms * 1000); | |
140 | } | |
141 | ||
142 | int plat_wait_event(int *fds_hnds, int count, int timeout_ms) | |
143 | { | |
144 | struct timeval tv, *timeout = NULL; | |
145 | int i, ret, fdmax = -1; | |
146 | fd_set fdset; | |
147 | ||
148 | if (timeout_ms >= 0) { | |
149 | tv.tv_sec = timeout_ms / 1000; | |
150 | tv.tv_usec = (timeout_ms % 1000) * 1000; | |
151 | timeout = &tv; | |
152 | } | |
153 | ||
154 | FD_ZERO(&fdset); | |
155 | for (i = 0; i < count; i++) { | |
156 | if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i]; | |
157 | FD_SET(fds_hnds[i], &fdset); | |
158 | } | |
159 | ||
160 | ret = select(fdmax + 1, &fdset, NULL, NULL, timeout); | |
161 | if (ret == -1) | |
162 | { | |
163 | perror("plat_wait_event: select failed"); | |
164 | sleep(1); | |
165 | return -1; | |
166 | } | |
167 | ||
168 | if (ret == 0) | |
169 | return -1; /* timeout */ | |
170 | ||
171 | ret = -1; | |
172 | for (i = 0; i < count; i++) | |
173 | if (FD_ISSET(fds_hnds[i], &fdset)) | |
174 | ret = fds_hnds[i]; | |
175 | ||
176 | return ret; | |
177 | } | |
178 | ||
ca69c3e5 | 179 | void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) |
997b2e4f | 180 | { |
f4750ef3 | 181 | static int hugetlb_warned; |
ca69c3e5 | 182 | int prot = PROT_READ | PROT_WRITE; |
183 | int flags = MAP_PRIVATE | MAP_ANONYMOUS; | |
997b2e4f | 184 | void *req, *ret; |
1ed48049 | 185 | |
997b2e4f | 186 | req = (void *)addr; |
ca69c3e5 | 187 | if (need_exec) |
188 | prot |= PROT_EXEC; | |
26ea1817 | 189 | /* avoid MAP_FIXED, it overrides existing mappings.. |
ca69c3e5 | 190 | if (is_fixed) |
191 | flags |= MAP_FIXED; | |
26ea1817 | 192 | */ |
f4750ef3 | 193 | if (size >= HUGETLB_THRESHOLD) |
ca69c3e5 | 194 | flags |= MAP_HUGETLB; |
5d636caa | 195 | #ifdef MAP_JIT |
196 | if (need_exec) | |
197 | flags |= MAP_JIT; | |
198 | #endif | |
ca69c3e5 | 199 | |
200 | ret = mmap(req, size, prot, flags, -1, 0); | |
201 | if (ret == MAP_FAILED && (flags & MAP_HUGETLB)) { | |
f4750ef3 | 202 | if (!hugetlb_warned) { |
203 | fprintf(stderr, | |
204 | "warning: failed to do hugetlb mmap (%p, %zu): %d\n", | |
205 | req, size, errno); | |
206 | hugetlb_warned = 1; | |
207 | } | |
ca69c3e5 | 208 | flags &= ~MAP_HUGETLB; |
209 | ret = mmap(req, size, prot, flags, -1, 0); | |
210 | } | |
997b2e4f | 211 | if (ret == MAP_FAILED) |
212 | return NULL; | |
ca69c3e5 | 213 | |
26ea1817 | 214 | if (req != NULL && ret != req) { |
215 | fprintf(stderr, "%s: mmaped to %p, requested %p\n", | |
216 | is_fixed ? "error" : "warning", ret, req); | |
217 | if (is_fixed) { | |
218 | munmap(ret, size); | |
219 | return NULL; | |
220 | } | |
221 | } | |
997b2e4f | 222 | |
223 | return ret; | |
224 | } | |
225 | ||
1ed48049 | 226 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) |
227 | { | |
228 | void *ret; | |
229 | ||
5d636caa | 230 | #ifdef MREMAP_MAYMOVE |
1ed48049 | 231 | ret = mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE); |
5d636caa | 232 | if (ret == MAP_FAILED) |
233 | #endif | |
234 | { | |
448ec62f | 235 | fprintf(stderr, "mremap %p %zd %zd: ", |
236 | ptr, oldsize, newsize); | |
237 | perror(NULL); | |
238 | // might be because huge pages can't be remapped, | |
239 | // just make a new mapping | |
240 | ret = plat_mmap(0, newsize, 0, 0); | |
241 | if (ret == MAP_FAILED) | |
242 | return NULL; | |
243 | memcpy(ret, ptr, oldsize); | |
244 | munmap(ptr, oldsize); | |
245 | } | |
1ed48049 | 246 | if (ret != ptr) |
247 | printf("warning: mremap moved: %p -> %p\n", ptr, ret); | |
248 | ||
249 | return ret; | |
250 | } | |
251 | ||
997b2e4f | 252 | void plat_munmap(void *ptr, size_t size) |
253 | { | |
ca69c3e5 | 254 | int ret; |
255 | ||
256 | ret = munmap(ptr, size); | |
257 | if (ret != 0 && (size & (HUGETLB_PAGESIZE - 1))) { | |
258 | // prehaps an autorounded hugetlb mapping? | |
259 | size = (size + HUGETLB_PAGESIZE - 1) & ~(HUGETLB_PAGESIZE - 1); | |
260 | ret = munmap(ptr, size); | |
261 | } | |
262 | if (ret != 0) { | |
263 | fprintf(stderr, | |
264 | "munmap(%p, %zu) failed: %d\n", ptr, size, errno); | |
265 | } | |
997b2e4f | 266 | } |
267 | ||
6282e17e GI |
268 | int plat_mem_set_exec(void *ptr, size_t size) |
269 | { | |
270 | int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); | |
271 | if (ret != 0) | |
272 | fprintf(stderr, "mprotect(%p, %zd) failed: %d\n", | |
273 | ptr, size, errno); | |
274 | ||
275 | return ret; | |
276 | } | |
277 | ||
2b9f9c51 | 278 | /* lprintf */ |
279 | void lprintf(const char *fmt, ...) | |
280 | { | |
281 | va_list vl; | |
282 | ||
283 | va_start(vl, fmt); | |
284 | vprintf(fmt, vl); | |
285 | va_end(vl); | |
286 | } | |
287 |