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07800601 IM |
1 | #ifndef GIT_COMPAT_UTIL_H |
2 | #define GIT_COMPAT_UTIL_H | |
3 | ||
07800601 IM |
4 | #ifndef FLEX_ARRAY |
5 | /* | |
6 | * See if our compiler is known to support flexible array members. | |
7 | */ | |
8 | #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) | |
9 | # define FLEX_ARRAY /* empty */ | |
10 | #elif defined(__GNUC__) | |
11 | # if (__GNUC__ >= 3) | |
12 | # define FLEX_ARRAY /* empty */ | |
13 | # else | |
14 | # define FLEX_ARRAY 0 /* older GNU extension */ | |
15 | # endif | |
16 | #endif | |
17 | ||
18 | /* | |
19 | * Otherwise, default to safer but a bit wasteful traditional style | |
20 | */ | |
21 | #ifndef FLEX_ARRAY | |
22 | # define FLEX_ARRAY 1 | |
23 | #endif | |
24 | #endif | |
25 | ||
26 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) | |
27 | ||
28 | #ifdef __GNUC__ | |
29 | #define TYPEOF(x) (__typeof__(x)) | |
30 | #else | |
31 | #define TYPEOF(x) | |
32 | #endif | |
33 | ||
34 | #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits)))) | |
35 | #define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */ | |
36 | ||
37 | /* Approximation of the length of the decimal representation of this type. */ | |
38 | #define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) | |
39 | ||
07800601 | 40 | #define _ALL_SOURCE 1 |
07800601 | 41 | #define _BSD_SOURCE 1 |
512fe365 CP |
42 | /* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */ |
43 | #define _DEFAULT_SOURCE 1 | |
e206d556 | 44 | #define HAS_BOOL |
07800601 IM |
45 | |
46 | #include <unistd.h> | |
47 | #include <stdio.h> | |
48 | #include <sys/stat.h> | |
f6bdafef | 49 | #include <sys/statfs.h> |
07800601 | 50 | #include <fcntl.h> |
e206d556 | 51 | #include <stdbool.h> |
07800601 IM |
52 | #include <stddef.h> |
53 | #include <stdlib.h> | |
54 | #include <stdarg.h> | |
55 | #include <string.h> | |
56 | #include <errno.h> | |
57 | #include <limits.h> | |
58 | #include <sys/param.h> | |
59 | #include <sys/types.h> | |
60 | #include <dirent.h> | |
61 | #include <sys/time.h> | |
62 | #include <time.h> | |
63 | #include <signal.h> | |
64 | #include <fnmatch.h> | |
65 | #include <assert.h> | |
66 | #include <regex.h> | |
67 | #include <utime.h> | |
07800601 | 68 | #include <sys/wait.h> |
a8fa4960 | 69 | #include <poll.h> |
07800601 IM |
70 | #include <sys/socket.h> |
71 | #include <sys/ioctl.h> | |
07800601 | 72 | #include <inttypes.h> |
972f393b | 73 | #include <linux/kernel.h> |
f8fcd776 | 74 | #include <linux/magic.h> |
d944c4ee | 75 | #include <linux/types.h> |
46e3e055 | 76 | #include <sys/ttydefaults.h> |
553873e1 | 77 | #include <api/fs/debugfs.h> |
23773ca1 | 78 | #include <api/fs/tracefs.h> |
756bbc84 | 79 | #include <termios.h> |
1dbfa938 | 80 | #include <linux/bitops.h> |
9398c484 | 81 | #include <termios.h> |
1fe2c106 | 82 | |
2890284b ACM |
83 | extern const char *graph_line; |
84 | extern const char *graph_dotted_line; | |
45de34bb | 85 | extern char buildid_dir[]; |
9f44f0cc | 86 | extern char tracing_path[]; |
1355915a BP |
87 | extern char tracing_events_path[]; |
88 | extern void perf_debugfs_set_path(const char *mountpoint); | |
89 | const char *perf_debugfs_mount(const char *mountpoint); | |
167aedc4 NK |
90 | char *get_tracing_file(const char *name); |
91 | void put_tracing_file(char *file); | |
2890284b | 92 | |
07800601 IM |
93 | /* On most systems <limits.h> would have given us this, but |
94 | * not on some systems (e.g. GNU/Hurd). | |
95 | */ | |
96 | #ifndef PATH_MAX | |
97 | #define PATH_MAX 4096 | |
98 | #endif | |
99 | ||
100 | #ifndef PRIuMAX | |
101 | #define PRIuMAX "llu" | |
102 | #endif | |
103 | ||
104 | #ifndef PRIu32 | |
105 | #define PRIu32 "u" | |
106 | #endif | |
107 | ||
108 | #ifndef PRIx32 | |
109 | #define PRIx32 "x" | |
110 | #endif | |
111 | ||
112 | #ifndef PATH_SEP | |
113 | #define PATH_SEP ':' | |
114 | #endif | |
115 | ||
116 | #ifndef STRIP_EXTENSION | |
117 | #define STRIP_EXTENSION "" | |
118 | #endif | |
119 | ||
120 | #ifndef has_dos_drive_prefix | |
121 | #define has_dos_drive_prefix(path) 0 | |
122 | #endif | |
123 | ||
124 | #ifndef is_dir_sep | |
125 | #define is_dir_sep(c) ((c) == '/') | |
126 | #endif | |
127 | ||
128 | #ifdef __GNUC__ | |
129 | #define NORETURN __attribute__((__noreturn__)) | |
130 | #else | |
131 | #define NORETURN | |
132 | #ifndef __attribute__ | |
133 | #define __attribute__(x) | |
134 | #endif | |
135 | #endif | |
136 | ||
fc67297b NK |
137 | #define PERF_GTK_DSO "libperf-gtk.so" |
138 | ||
07800601 IM |
139 | /* General helper functions */ |
140 | extern void usage(const char *err) NORETURN; | |
141 | extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); | |
142 | extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
143 | extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
144 | ||
9769833b MH |
145 | #include "../../../include/linux/stringify.h" |
146 | ||
147 | #define DIE_IF(cnd) \ | |
148 | do { if (cnd) \ | |
149 | die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \ | |
150 | __stringify(cnd) "\n"); \ | |
151 | } while (0) | |
152 | ||
153 | ||
07800601 IM |
154 | extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); |
155 | ||
156 | extern int prefixcmp(const char *str, const char *prefix); | |
99ce8e9f | 157 | extern void set_buildid_dir(const char *dir); |
07800601 IM |
158 | |
159 | static inline const char *skip_prefix(const char *str, const char *prefix) | |
160 | { | |
161 | size_t len = strlen(prefix); | |
162 | return strncmp(str, prefix, len) ? NULL : str + len; | |
163 | } | |
164 | ||
07800601 IM |
165 | #ifdef __GLIBC_PREREQ |
166 | #if __GLIBC_PREREQ(2, 1) | |
167 | #define HAVE_STRCHRNUL | |
168 | #endif | |
169 | #endif | |
170 | ||
171 | #ifndef HAVE_STRCHRNUL | |
172 | #define strchrnul gitstrchrnul | |
173 | static inline char *gitstrchrnul(const char *s, int c) | |
174 | { | |
175 | while (*s && *s != c) | |
176 | s++; | |
177 | return (char *)s; | |
178 | } | |
179 | #endif | |
180 | ||
6f06ccbc IM |
181 | /* |
182 | * Wrappers: | |
183 | */ | |
184 | extern char *xstrdup(const char *str); | |
727dad10 | 185 | extern void *xrealloc(void *ptr, size_t size) __attribute__((weak)); |
16f762a2 | 186 | |
a1d37d52 | 187 | |
36479484 ACM |
188 | static inline void *zalloc(size_t size) |
189 | { | |
190 | return calloc(1, size); | |
191 | } | |
192 | ||
04662523 ACM |
193 | #define zfree(ptr) ({ free(*ptr); *ptr = NULL; }) |
194 | ||
07800601 IM |
195 | static inline int has_extension(const char *filename, const char *ext) |
196 | { | |
197 | size_t len = strlen(filename); | |
198 | size_t extlen = strlen(ext); | |
a1d37d52 | 199 | |
07800601 IM |
200 | return len > extlen && !memcmp(filename + len - extlen, ext, extlen); |
201 | } | |
202 | ||
203 | /* Sane ctype - no locale, and works with signed chars */ | |
204 | #undef isascii | |
205 | #undef isspace | |
206 | #undef isdigit | |
9e827dd0 | 207 | #undef isxdigit |
07800601 | 208 | #undef isalpha |
5f9c39dc | 209 | #undef isprint |
07800601 | 210 | #undef isalnum |
2cd13b0f NK |
211 | #undef islower |
212 | #undef isupper | |
07800601 IM |
213 | #undef tolower |
214 | #undef toupper | |
a1d37d52 | 215 | |
752fde44 ACM |
216 | #ifndef NSEC_PER_MSEC |
217 | #define NSEC_PER_MSEC 1000000L | |
218 | #endif | |
219 | ||
3b47abe1 NK |
220 | int parse_nsec_time(const char *str, u64 *ptime); |
221 | ||
07800601 | 222 | extern unsigned char sane_ctype[256]; |
a73c7d84 PZ |
223 | #define GIT_SPACE 0x01 |
224 | #define GIT_DIGIT 0x02 | |
225 | #define GIT_ALPHA 0x04 | |
226 | #define GIT_GLOB_SPECIAL 0x08 | |
227 | #define GIT_REGEX_SPECIAL 0x10 | |
228 | #define GIT_PRINT_EXTRA 0x20 | |
229 | #define GIT_PRINT 0x3E | |
07800601 IM |
230 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
231 | #define isascii(x) (((x) & ~0x7f) == 0) | |
232 | #define isspace(x) sane_istest(x,GIT_SPACE) | |
233 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
9e827dd0 FW |
234 | #define isxdigit(x) \ |
235 | (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G') | |
07800601 IM |
236 | #define isalpha(x) sane_istest(x,GIT_ALPHA) |
237 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
a73c7d84 | 238 | #define isprint(x) sane_istest(x,GIT_PRINT) |
6956664a SB |
239 | #define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20)) |
240 | #define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20)) | |
07800601 IM |
241 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
242 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
243 | ||
244 | static inline int sane_case(int x, int high) | |
245 | { | |
246 | if (sane_istest(x, GIT_ALPHA)) | |
247 | x = (x & ~0x20) | high; | |
248 | return x; | |
249 | } | |
250 | ||
4cf40131 | 251 | int mkdir_p(char *path, mode_t mode); |
0b1de0be | 252 | int rm_rf(char *path); |
4cf40131 | 253 | int copyfile(const char *from, const char *to); |
9a17d726 | 254 | int copyfile_mode(const char *from, const char *to, mode_t mode); |
9c9f5a2f | 255 | int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size); |
4cf40131 | 256 | |
e206d556 ACM |
257 | s64 perf_atoll(const char *str); |
258 | char **argv_split(const char *str, int *argcp); | |
259 | void argv_free(char **argv); | |
260 | bool strglobmatch(const char *str, const char *pat); | |
261 | bool strlazymatch(const char *str, const char *pat); | |
4c859351 MH |
262 | static inline bool strisglob(const char *str) |
263 | { | |
264 | return strpbrk(str, "*?[") != NULL; | |
265 | } | |
bad03ae4 | 266 | int strtailcmp(const char *s1, const char *s2); |
ea36c46b | 267 | char *strxfrchar(char *s, char from, char to); |
c82ee828 | 268 | unsigned long convert_unit(unsigned long value, char *unit); |
727ebd54 | 269 | ssize_t readn(int fd, void *buf, size_t n); |
bc3a502b | 270 | ssize_t writen(int fd, void *buf, size_t n); |
e206d556 | 271 | |
1aed2671 JR |
272 | struct perf_event_attr; |
273 | ||
274 | void event_attr_init(struct perf_event_attr *attr); | |
275 | ||
e206d556 ACM |
276 | #define _STR(x) #x |
277 | #define STR(x) _STR(x) | |
278 | ||
61e04b33 | 279 | size_t hex_width(u64 v); |
b2aff5f6 | 280 | int hex2u64(const char *ptr, u64 *val); |
61e04b33 | 281 | |
08aa9cce | 282 | char *ltrim(char *s); |
cb1a28a0 ACM |
283 | char *rtrim(char *s); |
284 | ||
dc4552bf | 285 | void dump_stack(void); |
07c1a0da | 286 | void sighandler_dump_stack(int sig); |
dc4552bf | 287 | |
0c1fe6b2 | 288 | extern unsigned int page_size; |
2b1b7100 | 289 | extern int cacheline_size; |
0c1fe6b2 | 290 | |
2c803e52 | 291 | void get_term_dimensions(struct winsize *ws); |
9398c484 | 292 | void set_term_quiet_input(struct termios *old); |
27050f53 JO |
293 | |
294 | struct parse_tag { | |
295 | char tag; | |
296 | int mult; | |
297 | }; | |
298 | ||
299 | unsigned long parse_tag_value(const char *str, struct parse_tag *tags); | |
f048d548 NK |
300 | |
301 | #define SRCLINE_UNKNOWN ((char *) "??:0") | |
302 | ||
972f393b ACM |
303 | static inline int path__join(char *bf, size_t size, |
304 | const char *path1, const char *path2) | |
305 | { | |
306 | return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2); | |
307 | } | |
308 | ||
309 | static inline int path__join3(char *bf, size_t size, | |
310 | const char *path1, const char *path2, | |
311 | const char *path3) | |
312 | { | |
313 | return scnprintf(bf, size, "%s%s%s%s%s", | |
314 | path1, path1[0] ? "/" : "", | |
315 | path2, path2[0] ? "/" : "", path3); | |
316 | } | |
317 | ||
86c98cab | 318 | struct dso; |
85c116a6 | 319 | struct symbol; |
86c98cab | 320 | |
a9710ba0 | 321 | extern bool srcline_full_filename; |
ac931f87 | 322 | char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, |
85c116a6 | 323 | bool show_sym); |
f048d548 | 324 | void free_srcline(char *srcline); |
97a07f10 | 325 | |
cef82c9f | 326 | int filename__read_str(const char *filename, char **buf, size_t *sizep); |
1a47245d | 327 | int perf_event_paranoid(void); |
e1a2b174 | 328 | |
71db07b1 AH |
329 | void mem_bswap_64(void *src, int byte_size); |
330 | void mem_bswap_32(void *src, int byte_size); | |
331 | ||
e1a2b174 | 332 | const char *get_filename_for_perf_kvm(void); |
63914aca | 333 | bool find_process(const char *name); |
e92ce12e NK |
334 | |
335 | #ifdef HAVE_ZLIB_SUPPORT | |
336 | int gzip_decompress_to_file(const char *input, int output_fd); | |
337 | #endif | |
338 | ||
80a32e5b JO |
339 | #ifdef HAVE_LZMA_SUPPORT |
340 | int lzma_decompress_to_file(const char *input, int output_fd); | |
341 | #endif | |
342 | ||
93ec4ce7 ACM |
343 | char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints); |
344 | ||
345 | static inline char *asprintf_expr_in_ints(const char *var, size_t nints, int *ints) | |
346 | { | |
347 | return asprintf_expr_inout_ints(var, true, nints, ints); | |
348 | } | |
349 | ||
350 | static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int *ints) | |
351 | { | |
352 | return asprintf_expr_inout_ints(var, false, nints, ints); | |
353 | } | |
354 | ||
076a30c4 KL |
355 | int get_stack_size(const char *str, unsigned long *_size); |
356 | ||
1355915a | 357 | #endif /* GIT_COMPAT_UTIL_H */ |