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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> |
1fe2c106 | 82 | |
2890284b ACM |
83 | extern const char *graph_line; |
84 | extern const char *graph_dotted_line; | |
8e2fc44f NK |
85 | extern const char *spaces; |
86 | extern const char *dots; | |
45de34bb | 87 | extern char buildid_dir[]; |
2890284b | 88 | |
07800601 IM |
89 | /* On most systems <limits.h> would have given us this, but |
90 | * not on some systems (e.g. GNU/Hurd). | |
91 | */ | |
92 | #ifndef PATH_MAX | |
93 | #define PATH_MAX 4096 | |
94 | #endif | |
95 | ||
96 | #ifndef PRIuMAX | |
97 | #define PRIuMAX "llu" | |
98 | #endif | |
99 | ||
100 | #ifndef PRIu32 | |
101 | #define PRIu32 "u" | |
102 | #endif | |
103 | ||
104 | #ifndef PRIx32 | |
105 | #define PRIx32 "x" | |
106 | #endif | |
107 | ||
108 | #ifndef PATH_SEP | |
109 | #define PATH_SEP ':' | |
110 | #endif | |
111 | ||
112 | #ifndef STRIP_EXTENSION | |
113 | #define STRIP_EXTENSION "" | |
114 | #endif | |
115 | ||
116 | #ifndef has_dos_drive_prefix | |
117 | #define has_dos_drive_prefix(path) 0 | |
118 | #endif | |
119 | ||
120 | #ifndef is_dir_sep | |
121 | #define is_dir_sep(c) ((c) == '/') | |
122 | #endif | |
123 | ||
124 | #ifdef __GNUC__ | |
125 | #define NORETURN __attribute__((__noreturn__)) | |
126 | #else | |
127 | #define NORETURN | |
128 | #ifndef __attribute__ | |
129 | #define __attribute__(x) | |
130 | #endif | |
131 | #endif | |
132 | ||
fc67297b NK |
133 | #define PERF_GTK_DSO "libperf-gtk.so" |
134 | ||
07800601 | 135 | /* General helper functions */ |
3938bad4 ACM |
136 | void usage(const char *err) NORETURN; |
137 | void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); | |
138 | int error(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
139 | void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
07800601 | 140 | |
3938bad4 | 141 | void set_warning_routine(void (*routine)(const char *err, va_list params)); |
07800601 | 142 | |
3938bad4 ACM |
143 | int prefixcmp(const char *str, const char *prefix); |
144 | void set_buildid_dir(const char *dir); | |
07800601 | 145 | |
07800601 IM |
146 | #ifdef __GLIBC_PREREQ |
147 | #if __GLIBC_PREREQ(2, 1) | |
148 | #define HAVE_STRCHRNUL | |
149 | #endif | |
150 | #endif | |
151 | ||
152 | #ifndef HAVE_STRCHRNUL | |
153 | #define strchrnul gitstrchrnul | |
154 | static inline char *gitstrchrnul(const char *s, int c) | |
155 | { | |
156 | while (*s && *s != c) | |
157 | s++; | |
158 | return (char *)s; | |
159 | } | |
160 | #endif | |
161 | ||
6f06ccbc IM |
162 | /* |
163 | * Wrappers: | |
164 | */ | |
3938bad4 | 165 | void *xrealloc(void *ptr, size_t size) __attribute__((weak)); |
16f762a2 | 166 | |
a1d37d52 | 167 | |
36479484 ACM |
168 | static inline void *zalloc(size_t size) |
169 | { | |
170 | return calloc(1, size); | |
171 | } | |
172 | ||
04662523 ACM |
173 | #define zfree(ptr) ({ free(*ptr); *ptr = NULL; }) |
174 | ||
07800601 IM |
175 | /* Sane ctype - no locale, and works with signed chars */ |
176 | #undef isascii | |
177 | #undef isspace | |
178 | #undef isdigit | |
9e827dd0 | 179 | #undef isxdigit |
07800601 | 180 | #undef isalpha |
5f9c39dc | 181 | #undef isprint |
07800601 | 182 | #undef isalnum |
2cd13b0f NK |
183 | #undef islower |
184 | #undef isupper | |
07800601 IM |
185 | #undef tolower |
186 | #undef toupper | |
a1d37d52 | 187 | |
752fde44 ACM |
188 | #ifndef NSEC_PER_MSEC |
189 | #define NSEC_PER_MSEC 1000000L | |
190 | #endif | |
191 | ||
3b47abe1 NK |
192 | int parse_nsec_time(const char *str, u64 *ptime); |
193 | ||
07800601 | 194 | extern unsigned char sane_ctype[256]; |
a73c7d84 PZ |
195 | #define GIT_SPACE 0x01 |
196 | #define GIT_DIGIT 0x02 | |
197 | #define GIT_ALPHA 0x04 | |
198 | #define GIT_GLOB_SPECIAL 0x08 | |
199 | #define GIT_REGEX_SPECIAL 0x10 | |
200 | #define GIT_PRINT_EXTRA 0x20 | |
201 | #define GIT_PRINT 0x3E | |
07800601 IM |
202 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
203 | #define isascii(x) (((x) & ~0x7f) == 0) | |
204 | #define isspace(x) sane_istest(x,GIT_SPACE) | |
205 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
9e827dd0 FW |
206 | #define isxdigit(x) \ |
207 | (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G') | |
07800601 IM |
208 | #define isalpha(x) sane_istest(x,GIT_ALPHA) |
209 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
a73c7d84 | 210 | #define isprint(x) sane_istest(x,GIT_PRINT) |
6956664a SB |
211 | #define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20)) |
212 | #define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20)) | |
07800601 IM |
213 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
214 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
215 | ||
216 | static inline int sane_case(int x, int high) | |
217 | { | |
218 | if (sane_istest(x, GIT_ALPHA)) | |
219 | x = (x & ~0x20) | high; | |
220 | return x; | |
221 | } | |
222 | ||
4cf40131 | 223 | int mkdir_p(char *path, mode_t mode); |
0b1de0be | 224 | int rm_rf(char *path); |
4cf40131 | 225 | int copyfile(const char *from, const char *to); |
9a17d726 | 226 | int copyfile_mode(const char *from, const char *to, mode_t mode); |
9c9f5a2f | 227 | int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size); |
4cf40131 | 228 | |
e206d556 ACM |
229 | s64 perf_atoll(const char *str); |
230 | char **argv_split(const char *str, int *argcp); | |
231 | void argv_free(char **argv); | |
232 | bool strglobmatch(const char *str, const char *pat); | |
233 | bool strlazymatch(const char *str, const char *pat); | |
4c859351 MH |
234 | static inline bool strisglob(const char *str) |
235 | { | |
236 | return strpbrk(str, "*?[") != NULL; | |
237 | } | |
bad03ae4 | 238 | int strtailcmp(const char *s1, const char *s2); |
ea36c46b | 239 | char *strxfrchar(char *s, char from, char to); |
c82ee828 | 240 | unsigned long convert_unit(unsigned long value, char *unit); |
727ebd54 | 241 | ssize_t readn(int fd, void *buf, size_t n); |
bc3a502b | 242 | ssize_t writen(int fd, void *buf, size_t n); |
e206d556 | 243 | |
1aed2671 JR |
244 | struct perf_event_attr; |
245 | ||
246 | void event_attr_init(struct perf_event_attr *attr); | |
247 | ||
e206d556 ACM |
248 | #define _STR(x) #x |
249 | #define STR(x) _STR(x) | |
250 | ||
61e04b33 | 251 | size_t hex_width(u64 v); |
b2aff5f6 | 252 | int hex2u64(const char *ptr, u64 *val); |
61e04b33 | 253 | |
08aa9cce | 254 | char *ltrim(char *s); |
cb1a28a0 ACM |
255 | char *rtrim(char *s); |
256 | ||
dc4552bf | 257 | void dump_stack(void); |
07c1a0da | 258 | void sighandler_dump_stack(int sig); |
dc4552bf | 259 | |
0c1fe6b2 | 260 | extern unsigned int page_size; |
2b1b7100 | 261 | extern int cacheline_size; |
0c1fe6b2 | 262 | |
27050f53 JO |
263 | struct parse_tag { |
264 | char tag; | |
265 | int mult; | |
266 | }; | |
267 | ||
268 | unsigned long parse_tag_value(const char *str, struct parse_tag *tags); | |
f048d548 NK |
269 | |
270 | #define SRCLINE_UNKNOWN ((char *) "??:0") | |
271 | ||
972f393b ACM |
272 | static inline int path__join(char *bf, size_t size, |
273 | const char *path1, const char *path2) | |
274 | { | |
275 | return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2); | |
276 | } | |
277 | ||
278 | static inline int path__join3(char *bf, size_t size, | |
279 | const char *path1, const char *path2, | |
280 | const char *path3) | |
281 | { | |
282 | return scnprintf(bf, size, "%s%s%s%s%s", | |
283 | path1, path1[0] ? "/" : "", | |
284 | path2, path2[0] ? "/" : "", path3); | |
285 | } | |
286 | ||
86c98cab | 287 | struct dso; |
85c116a6 | 288 | struct symbol; |
86c98cab | 289 | |
a9710ba0 | 290 | extern bool srcline_full_filename; |
ac931f87 | 291 | char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, |
85c116a6 | 292 | bool show_sym); |
2f84b42b AK |
293 | char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym, |
294 | bool show_sym, bool unwind_inlines); | |
f048d548 | 295 | void free_srcline(char *srcline); |
97a07f10 | 296 | |
1a47245d | 297 | int perf_event_paranoid(void); |
e1a2b174 | 298 | |
71db07b1 AH |
299 | void mem_bswap_64(void *src, int byte_size); |
300 | void mem_bswap_32(void *src, int byte_size); | |
301 | ||
e1a2b174 | 302 | const char *get_filename_for_perf_kvm(void); |
63914aca | 303 | bool find_process(const char *name); |
e92ce12e NK |
304 | |
305 | #ifdef HAVE_ZLIB_SUPPORT | |
306 | int gzip_decompress_to_file(const char *input, int output_fd); | |
307 | #endif | |
308 | ||
80a32e5b JO |
309 | #ifdef HAVE_LZMA_SUPPORT |
310 | int lzma_decompress_to_file(const char *input, int output_fd); | |
311 | #endif | |
312 | ||
93ec4ce7 ACM |
313 | char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints); |
314 | ||
315 | static inline char *asprintf_expr_in_ints(const char *var, size_t nints, int *ints) | |
316 | { | |
317 | return asprintf_expr_inout_ints(var, true, nints, ints); | |
318 | } | |
319 | ||
320 | static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int *ints) | |
321 | { | |
322 | return asprintf_expr_inout_ints(var, false, nints, ints); | |
323 | } | |
324 | ||
076a30c4 KL |
325 | int get_stack_size(const char *str, unsigned long *_size); |
326 | ||
07bc5c69 WN |
327 | int fetch_kernel_version(unsigned int *puint, |
328 | char *str, size_t str_sz); | |
d3e0ce39 WN |
329 | #define KVER_VERSION(x) (((x) >> 16) & 0xff) |
330 | #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff) | |
331 | #define KVER_SUBLEVEL(x) ((x) & 0xff) | |
332 | #define KVER_FMT "%d.%d.%d" | |
333 | #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x) | |
07bc5c69 | 334 | |
14cbfbeb | 335 | const char *perf_tip(const char *dirpath); |
40356721 | 336 | bool is_regular_file(const char *file); |
37b20151 | 337 | int fetch_current_timestamp(char *buf, size_t sz); |
14cbfbeb | 338 | |
c339b1a9 WN |
339 | enum binary_printer_ops { |
340 | BINARY_PRINT_DATA_BEGIN, | |
341 | BINARY_PRINT_LINE_BEGIN, | |
342 | BINARY_PRINT_ADDR, | |
343 | BINARY_PRINT_NUM_DATA, | |
344 | BINARY_PRINT_NUM_PAD, | |
345 | BINARY_PRINT_SEP, | |
346 | BINARY_PRINT_CHAR_DATA, | |
347 | BINARY_PRINT_CHAR_PAD, | |
348 | BINARY_PRINT_LINE_END, | |
349 | BINARY_PRINT_DATA_END, | |
350 | }; | |
351 | ||
352 | typedef void (*print_binary_t)(enum binary_printer_ops, | |
353 | unsigned int val, | |
354 | void *extra); | |
355 | ||
356 | void print_binary(unsigned char *data, size_t len, | |
357 | size_t bytes_per_line, print_binary_t printer, | |
358 | void *extra); | |
1355915a | 359 | #endif /* GIT_COMPAT_UTIL_H */ |