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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> | |
1fe143c5 | 56 | #include <term.h> |
07800601 IM |
57 | #include <errno.h> |
58 | #include <limits.h> | |
59 | #include <sys/param.h> | |
60 | #include <sys/types.h> | |
61 | #include <dirent.h> | |
62 | #include <sys/time.h> | |
63 | #include <time.h> | |
64 | #include <signal.h> | |
65 | #include <fnmatch.h> | |
66 | #include <assert.h> | |
67 | #include <regex.h> | |
68 | #include <utime.h> | |
07800601 | 69 | #include <sys/wait.h> |
a8fa4960 | 70 | #include <poll.h> |
07800601 IM |
71 | #include <sys/socket.h> |
72 | #include <sys/ioctl.h> | |
07800601 | 73 | #include <inttypes.h> |
972f393b | 74 | #include <linux/kernel.h> |
f8fcd776 | 75 | #include <linux/magic.h> |
d944c4ee | 76 | #include <linux/types.h> |
46e3e055 | 77 | #include <sys/ttydefaults.h> |
4605eab3 | 78 | #include <api/fs/tracing_path.h> |
756bbc84 | 79 | #include <termios.h> |
1dbfa938 | 80 | #include <linux/bitops.h> |
9398c484 | 81 | #include <termios.h> |
e1ce726e | 82 | #include "strlist.h" |
1fe2c106 | 83 | |
2890284b ACM |
84 | extern const char *graph_line; |
85 | extern const char *graph_dotted_line; | |
8e2fc44f NK |
86 | extern const char *spaces; |
87 | extern const char *dots; | |
45de34bb | 88 | extern char buildid_dir[]; |
2890284b | 89 | |
07800601 IM |
90 | /* On most systems <limits.h> would have given us this, but |
91 | * not on some systems (e.g. GNU/Hurd). | |
92 | */ | |
93 | #ifndef PATH_MAX | |
94 | #define PATH_MAX 4096 | |
95 | #endif | |
96 | ||
97 | #ifndef PRIuMAX | |
98 | #define PRIuMAX "llu" | |
99 | #endif | |
100 | ||
101 | #ifndef PRIu32 | |
102 | #define PRIu32 "u" | |
103 | #endif | |
104 | ||
105 | #ifndef PRIx32 | |
106 | #define PRIx32 "x" | |
107 | #endif | |
108 | ||
109 | #ifndef PATH_SEP | |
110 | #define PATH_SEP ':' | |
111 | #endif | |
112 | ||
113 | #ifndef STRIP_EXTENSION | |
114 | #define STRIP_EXTENSION "" | |
115 | #endif | |
116 | ||
117 | #ifndef has_dos_drive_prefix | |
118 | #define has_dos_drive_prefix(path) 0 | |
119 | #endif | |
120 | ||
121 | #ifndef is_dir_sep | |
122 | #define is_dir_sep(c) ((c) == '/') | |
123 | #endif | |
124 | ||
125 | #ifdef __GNUC__ | |
126 | #define NORETURN __attribute__((__noreturn__)) | |
127 | #else | |
128 | #define NORETURN | |
129 | #ifndef __attribute__ | |
130 | #define __attribute__(x) | |
131 | #endif | |
132 | #endif | |
133 | ||
fc67297b NK |
134 | #define PERF_GTK_DSO "libperf-gtk.so" |
135 | ||
07800601 | 136 | /* General helper functions */ |
3938bad4 ACM |
137 | void usage(const char *err) NORETURN; |
138 | void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); | |
139 | int error(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
140 | void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
07800601 | 141 | |
3938bad4 | 142 | void set_warning_routine(void (*routine)(const char *err, va_list params)); |
07800601 | 143 | |
3938bad4 ACM |
144 | int prefixcmp(const char *str, const char *prefix); |
145 | void set_buildid_dir(const char *dir); | |
07800601 | 146 | |
07800601 IM |
147 | #ifdef __GLIBC_PREREQ |
148 | #if __GLIBC_PREREQ(2, 1) | |
149 | #define HAVE_STRCHRNUL | |
150 | #endif | |
151 | #endif | |
152 | ||
153 | #ifndef HAVE_STRCHRNUL | |
154 | #define strchrnul gitstrchrnul | |
155 | static inline char *gitstrchrnul(const char *s, int c) | |
156 | { | |
157 | while (*s && *s != c) | |
158 | s++; | |
159 | return (char *)s; | |
160 | } | |
161 | #endif | |
162 | ||
36479484 ACM |
163 | static inline void *zalloc(size_t size) |
164 | { | |
165 | return calloc(1, size); | |
166 | } | |
167 | ||
04662523 ACM |
168 | #define zfree(ptr) ({ free(*ptr); *ptr = NULL; }) |
169 | ||
07800601 IM |
170 | /* Sane ctype - no locale, and works with signed chars */ |
171 | #undef isascii | |
172 | #undef isspace | |
173 | #undef isdigit | |
9e827dd0 | 174 | #undef isxdigit |
07800601 | 175 | #undef isalpha |
5f9c39dc | 176 | #undef isprint |
07800601 | 177 | #undef isalnum |
2cd13b0f NK |
178 | #undef islower |
179 | #undef isupper | |
07800601 IM |
180 | #undef tolower |
181 | #undef toupper | |
a1d37d52 | 182 | |
752fde44 ACM |
183 | #ifndef NSEC_PER_MSEC |
184 | #define NSEC_PER_MSEC 1000000L | |
185 | #endif | |
186 | ||
3b47abe1 NK |
187 | int parse_nsec_time(const char *str, u64 *ptime); |
188 | ||
07800601 | 189 | extern unsigned char sane_ctype[256]; |
a73c7d84 PZ |
190 | #define GIT_SPACE 0x01 |
191 | #define GIT_DIGIT 0x02 | |
192 | #define GIT_ALPHA 0x04 | |
193 | #define GIT_GLOB_SPECIAL 0x08 | |
194 | #define GIT_REGEX_SPECIAL 0x10 | |
195 | #define GIT_PRINT_EXTRA 0x20 | |
196 | #define GIT_PRINT 0x3E | |
07800601 IM |
197 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
198 | #define isascii(x) (((x) & ~0x7f) == 0) | |
199 | #define isspace(x) sane_istest(x,GIT_SPACE) | |
200 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
9e827dd0 FW |
201 | #define isxdigit(x) \ |
202 | (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G') | |
07800601 IM |
203 | #define isalpha(x) sane_istest(x,GIT_ALPHA) |
204 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
a73c7d84 | 205 | #define isprint(x) sane_istest(x,GIT_PRINT) |
6956664a SB |
206 | #define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20)) |
207 | #define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20)) | |
07800601 IM |
208 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
209 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
210 | ||
211 | static inline int sane_case(int x, int high) | |
212 | { | |
213 | if (sane_istest(x, GIT_ALPHA)) | |
214 | x = (x & ~0x20) | high; | |
215 | return x; | |
216 | } | |
217 | ||
4cf40131 | 218 | int mkdir_p(char *path, mode_t mode); |
0b1de0be | 219 | int rm_rf(char *path); |
e1ce726e MH |
220 | struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *)); |
221 | bool lsdir_no_dot_filter(const char *name, struct dirent *d); | |
4cf40131 | 222 | int copyfile(const char *from, const char *to); |
9a17d726 | 223 | int copyfile_mode(const char *from, const char *to, mode_t mode); |
9c9f5a2f | 224 | int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size); |
4cf40131 | 225 | |
e206d556 ACM |
226 | s64 perf_atoll(const char *str); |
227 | char **argv_split(const char *str, int *argcp); | |
228 | void argv_free(char **argv); | |
229 | bool strglobmatch(const char *str, const char *pat); | |
230 | bool strlazymatch(const char *str, const char *pat); | |
4c859351 MH |
231 | static inline bool strisglob(const char *str) |
232 | { | |
233 | return strpbrk(str, "*?[") != NULL; | |
234 | } | |
bad03ae4 | 235 | int strtailcmp(const char *s1, const char *s2); |
ea36c46b | 236 | char *strxfrchar(char *s, char from, char to); |
c82ee828 | 237 | unsigned long convert_unit(unsigned long value, char *unit); |
727ebd54 | 238 | ssize_t readn(int fd, void *buf, size_t n); |
bc3a502b | 239 | ssize_t writen(int fd, void *buf, size_t n); |
e206d556 | 240 | |
1aed2671 JR |
241 | struct perf_event_attr; |
242 | ||
243 | void event_attr_init(struct perf_event_attr *attr); | |
244 | ||
e206d556 ACM |
245 | #define _STR(x) #x |
246 | #define STR(x) _STR(x) | |
247 | ||
61e04b33 | 248 | size_t hex_width(u64 v); |
b2aff5f6 | 249 | int hex2u64(const char *ptr, u64 *val); |
61e04b33 | 250 | |
08aa9cce | 251 | char *ltrim(char *s); |
cb1a28a0 ACM |
252 | char *rtrim(char *s); |
253 | ||
7d6a7e78 JO |
254 | static inline char *trim(char *s) |
255 | { | |
256 | return ltrim(rtrim(s)); | |
257 | } | |
258 | ||
dc4552bf | 259 | void dump_stack(void); |
07c1a0da | 260 | void sighandler_dump_stack(int sig); |
dc4552bf | 261 | |
0c1fe6b2 | 262 | extern unsigned int page_size; |
2b1b7100 | 263 | extern int cacheline_size; |
a29d5c9b ACM |
264 | extern int sysctl_perf_event_max_stack; |
265 | extern int sysctl_perf_event_max_contexts_per_stack; | |
0c1fe6b2 | 266 | |
27050f53 JO |
267 | struct parse_tag { |
268 | char tag; | |
269 | int mult; | |
270 | }; | |
271 | ||
272 | unsigned long parse_tag_value(const char *str, struct parse_tag *tags); | |
f048d548 NK |
273 | |
274 | #define SRCLINE_UNKNOWN ((char *) "??:0") | |
275 | ||
972f393b ACM |
276 | static inline int path__join(char *bf, size_t size, |
277 | const char *path1, const char *path2) | |
278 | { | |
279 | return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2); | |
280 | } | |
281 | ||
282 | static inline int path__join3(char *bf, size_t size, | |
283 | const char *path1, const char *path2, | |
284 | const char *path3) | |
285 | { | |
286 | return scnprintf(bf, size, "%s%s%s%s%s", | |
287 | path1, path1[0] ? "/" : "", | |
288 | path2, path2[0] ? "/" : "", path3); | |
289 | } | |
290 | ||
86c98cab | 291 | struct dso; |
85c116a6 | 292 | struct symbol; |
86c98cab | 293 | |
a9710ba0 | 294 | extern bool srcline_full_filename; |
ac931f87 | 295 | char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, |
85c116a6 | 296 | bool show_sym); |
2f84b42b AK |
297 | char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym, |
298 | bool show_sym, bool unwind_inlines); | |
f048d548 | 299 | void free_srcline(char *srcline); |
97a07f10 | 300 | |
1a47245d | 301 | int perf_event_paranoid(void); |
e1a2b174 | 302 | |
71db07b1 AH |
303 | void mem_bswap_64(void *src, int byte_size); |
304 | void mem_bswap_32(void *src, int byte_size); | |
305 | ||
e1a2b174 | 306 | const char *get_filename_for_perf_kvm(void); |
63914aca | 307 | bool find_process(const char *name); |
e92ce12e NK |
308 | |
309 | #ifdef HAVE_ZLIB_SUPPORT | |
310 | int gzip_decompress_to_file(const char *input, int output_fd); | |
311 | #endif | |
312 | ||
80a32e5b JO |
313 | #ifdef HAVE_LZMA_SUPPORT |
314 | int lzma_decompress_to_file(const char *input, int output_fd); | |
315 | #endif | |
316 | ||
93ec4ce7 ACM |
317 | char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints); |
318 | ||
319 | static inline char *asprintf_expr_in_ints(const char *var, size_t nints, int *ints) | |
320 | { | |
321 | return asprintf_expr_inout_ints(var, true, nints, ints); | |
322 | } | |
323 | ||
324 | static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int *ints) | |
325 | { | |
326 | return asprintf_expr_inout_ints(var, false, nints, ints); | |
327 | } | |
328 | ||
076a30c4 KL |
329 | int get_stack_size(const char *str, unsigned long *_size); |
330 | ||
07bc5c69 WN |
331 | int fetch_kernel_version(unsigned int *puint, |
332 | char *str, size_t str_sz); | |
d3e0ce39 WN |
333 | #define KVER_VERSION(x) (((x) >> 16) & 0xff) |
334 | #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff) | |
335 | #define KVER_SUBLEVEL(x) ((x) & 0xff) | |
336 | #define KVER_FMT "%d.%d.%d" | |
337 | #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x) | |
07bc5c69 | 338 | |
14cbfbeb | 339 | const char *perf_tip(const char *dirpath); |
40356721 | 340 | bool is_regular_file(const char *file); |
37b20151 | 341 | int fetch_current_timestamp(char *buf, size_t sz); |
14cbfbeb | 342 | |
c339b1a9 WN |
343 | enum binary_printer_ops { |
344 | BINARY_PRINT_DATA_BEGIN, | |
345 | BINARY_PRINT_LINE_BEGIN, | |
346 | BINARY_PRINT_ADDR, | |
347 | BINARY_PRINT_NUM_DATA, | |
348 | BINARY_PRINT_NUM_PAD, | |
349 | BINARY_PRINT_SEP, | |
350 | BINARY_PRINT_CHAR_DATA, | |
351 | BINARY_PRINT_CHAR_PAD, | |
352 | BINARY_PRINT_LINE_END, | |
353 | BINARY_PRINT_DATA_END, | |
354 | }; | |
355 | ||
356 | typedef void (*print_binary_t)(enum binary_printer_ops, | |
357 | unsigned int val, | |
358 | void *extra); | |
359 | ||
360 | void print_binary(unsigned char *data, size_t len, | |
361 | size_t bytes_per_line, print_binary_t printer, | |
362 | void *extra); | |
1355915a | 363 | #endif /* GIT_COMPAT_UTIL_H */ |