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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 |
e206d556 | 42 | #define HAS_BOOL |
07800601 IM |
43 | |
44 | #include <unistd.h> | |
45 | #include <stdio.h> | |
46 | #include <sys/stat.h> | |
f6bdafef | 47 | #include <sys/statfs.h> |
07800601 | 48 | #include <fcntl.h> |
e206d556 | 49 | #include <stdbool.h> |
07800601 IM |
50 | #include <stddef.h> |
51 | #include <stdlib.h> | |
52 | #include <stdarg.h> | |
53 | #include <string.h> | |
54 | #include <errno.h> | |
55 | #include <limits.h> | |
56 | #include <sys/param.h> | |
57 | #include <sys/types.h> | |
58 | #include <dirent.h> | |
59 | #include <sys/time.h> | |
60 | #include <time.h> | |
61 | #include <signal.h> | |
62 | #include <fnmatch.h> | |
63 | #include <assert.h> | |
64 | #include <regex.h> | |
65 | #include <utime.h> | |
07800601 IM |
66 | #include <sys/wait.h> |
67 | #include <sys/poll.h> | |
68 | #include <sys/socket.h> | |
69 | #include <sys/ioctl.h> | |
07800601 | 70 | #include <inttypes.h> |
f8fcd776 | 71 | #include <linux/magic.h> |
e206d556 | 72 | #include "types.h" |
46e3e055 | 73 | #include <sys/ttydefaults.h> |
1355915a | 74 | #include <lk/debugfs.h> |
756bbc84 | 75 | #include <termios.h> |
1fe2c106 | 76 | |
2890284b ACM |
77 | extern const char *graph_line; |
78 | extern const char *graph_dotted_line; | |
45de34bb | 79 | extern char buildid_dir[]; |
1355915a BP |
80 | extern char tracing_events_path[]; |
81 | extern void perf_debugfs_set_path(const char *mountpoint); | |
82 | const char *perf_debugfs_mount(const char *mountpoint); | |
167aedc4 NK |
83 | const char *find_tracing_dir(void); |
84 | char *get_tracing_file(const char *name); | |
85 | void put_tracing_file(char *file); | |
2890284b | 86 | |
07800601 IM |
87 | /* On most systems <limits.h> would have given us this, but |
88 | * not on some systems (e.g. GNU/Hurd). | |
89 | */ | |
90 | #ifndef PATH_MAX | |
91 | #define PATH_MAX 4096 | |
92 | #endif | |
93 | ||
94 | #ifndef PRIuMAX | |
95 | #define PRIuMAX "llu" | |
96 | #endif | |
97 | ||
98 | #ifndef PRIu32 | |
99 | #define PRIu32 "u" | |
100 | #endif | |
101 | ||
102 | #ifndef PRIx32 | |
103 | #define PRIx32 "x" | |
104 | #endif | |
105 | ||
106 | #ifndef PATH_SEP | |
107 | #define PATH_SEP ':' | |
108 | #endif | |
109 | ||
110 | #ifndef STRIP_EXTENSION | |
111 | #define STRIP_EXTENSION "" | |
112 | #endif | |
113 | ||
114 | #ifndef has_dos_drive_prefix | |
115 | #define has_dos_drive_prefix(path) 0 | |
116 | #endif | |
117 | ||
118 | #ifndef is_dir_sep | |
119 | #define is_dir_sep(c) ((c) == '/') | |
120 | #endif | |
121 | ||
122 | #ifdef __GNUC__ | |
123 | #define NORETURN __attribute__((__noreturn__)) | |
124 | #else | |
125 | #define NORETURN | |
126 | #ifndef __attribute__ | |
127 | #define __attribute__(x) | |
128 | #endif | |
129 | #endif | |
130 | ||
fc67297b NK |
131 | #define PERF_GTK_DSO "libperf-gtk.so" |
132 | ||
07800601 IM |
133 | /* General helper functions */ |
134 | extern void usage(const char *err) NORETURN; | |
135 | extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); | |
136 | extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
137 | extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
138 | ||
9769833b MH |
139 | #include "../../../include/linux/stringify.h" |
140 | ||
141 | #define DIE_IF(cnd) \ | |
142 | do { if (cnd) \ | |
143 | die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \ | |
144 | __stringify(cnd) "\n"); \ | |
145 | } while (0) | |
146 | ||
147 | ||
07800601 IM |
148 | extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); |
149 | ||
150 | extern int prefixcmp(const char *str, const char *prefix); | |
45de34bb | 151 | extern void set_buildid_dir(void); |
a1ac1d3c | 152 | extern void disable_buildid_cache(void); |
07800601 IM |
153 | |
154 | static inline const char *skip_prefix(const char *str, const char *prefix) | |
155 | { | |
156 | size_t len = strlen(prefix); | |
157 | return strncmp(str, prefix, len) ? NULL : str + len; | |
158 | } | |
159 | ||
07800601 IM |
160 | #ifdef __GLIBC_PREREQ |
161 | #if __GLIBC_PREREQ(2, 1) | |
162 | #define HAVE_STRCHRNUL | |
163 | #endif | |
164 | #endif | |
165 | ||
166 | #ifndef HAVE_STRCHRNUL | |
167 | #define strchrnul gitstrchrnul | |
168 | static inline char *gitstrchrnul(const char *s, int c) | |
169 | { | |
170 | while (*s && *s != c) | |
171 | s++; | |
172 | return (char *)s; | |
173 | } | |
174 | #endif | |
175 | ||
6f06ccbc IM |
176 | /* |
177 | * Wrappers: | |
178 | */ | |
179 | extern char *xstrdup(const char *str); | |
727dad10 | 180 | extern void *xrealloc(void *ptr, size_t size) __attribute__((weak)); |
16f762a2 | 181 | |
a1d37d52 | 182 | |
36479484 ACM |
183 | static inline void *zalloc(size_t size) |
184 | { | |
185 | return calloc(1, size); | |
186 | } | |
187 | ||
07800601 IM |
188 | static inline int has_extension(const char *filename, const char *ext) |
189 | { | |
190 | size_t len = strlen(filename); | |
191 | size_t extlen = strlen(ext); | |
a1d37d52 | 192 | |
07800601 IM |
193 | return len > extlen && !memcmp(filename + len - extlen, ext, extlen); |
194 | } | |
195 | ||
196 | /* Sane ctype - no locale, and works with signed chars */ | |
197 | #undef isascii | |
198 | #undef isspace | |
199 | #undef isdigit | |
9e827dd0 | 200 | #undef isxdigit |
07800601 | 201 | #undef isalpha |
5f9c39dc | 202 | #undef isprint |
07800601 | 203 | #undef isalnum |
2cd13b0f NK |
204 | #undef islower |
205 | #undef isupper | |
07800601 IM |
206 | #undef tolower |
207 | #undef toupper | |
a1d37d52 | 208 | |
752fde44 ACM |
209 | #ifndef NSEC_PER_MSEC |
210 | #define NSEC_PER_MSEC 1000000L | |
211 | #endif | |
212 | ||
3b47abe1 NK |
213 | int parse_nsec_time(const char *str, u64 *ptime); |
214 | ||
07800601 | 215 | extern unsigned char sane_ctype[256]; |
a73c7d84 PZ |
216 | #define GIT_SPACE 0x01 |
217 | #define GIT_DIGIT 0x02 | |
218 | #define GIT_ALPHA 0x04 | |
219 | #define GIT_GLOB_SPECIAL 0x08 | |
220 | #define GIT_REGEX_SPECIAL 0x10 | |
221 | #define GIT_PRINT_EXTRA 0x20 | |
222 | #define GIT_PRINT 0x3E | |
07800601 IM |
223 | #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) |
224 | #define isascii(x) (((x) & ~0x7f) == 0) | |
225 | #define isspace(x) sane_istest(x,GIT_SPACE) | |
226 | #define isdigit(x) sane_istest(x,GIT_DIGIT) | |
9e827dd0 FW |
227 | #define isxdigit(x) \ |
228 | (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G') | |
07800601 IM |
229 | #define isalpha(x) sane_istest(x,GIT_ALPHA) |
230 | #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) | |
a73c7d84 | 231 | #define isprint(x) sane_istest(x,GIT_PRINT) |
6956664a SB |
232 | #define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20)) |
233 | #define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20)) | |
07800601 IM |
234 | #define tolower(x) sane_case((unsigned char)(x), 0x20) |
235 | #define toupper(x) sane_case((unsigned char)(x), 0) | |
236 | ||
237 | static inline int sane_case(int x, int high) | |
238 | { | |
239 | if (sane_istest(x, GIT_ALPHA)) | |
240 | x = (x & ~0x20) | high; | |
241 | return x; | |
242 | } | |
243 | ||
4cf40131 ACM |
244 | int mkdir_p(char *path, mode_t mode); |
245 | int copyfile(const char *from, const char *to); | |
246 | ||
e206d556 ACM |
247 | s64 perf_atoll(const char *str); |
248 | char **argv_split(const char *str, int *argcp); | |
249 | void argv_free(char **argv); | |
250 | bool strglobmatch(const char *str, const char *pat); | |
251 | bool strlazymatch(const char *str, const char *pat); | |
bad03ae4 | 252 | int strtailcmp(const char *s1, const char *s2); |
ea36c46b | 253 | char *strxfrchar(char *s, char from, char to); |
c82ee828 | 254 | unsigned long convert_unit(unsigned long value, char *unit); |
1e7972cc | 255 | int readn(int fd, void *buf, size_t size); |
e206d556 | 256 | |
1aed2671 JR |
257 | struct perf_event_attr; |
258 | ||
259 | void event_attr_init(struct perf_event_attr *attr); | |
260 | ||
e206d556 ACM |
261 | #define _STR(x) #x |
262 | #define STR(x) _STR(x) | |
263 | ||
41d0d933 NE |
264 | /* |
265 | * Determine whether some value is a power of two, where zero is | |
266 | * *not* considered a power of two. | |
267 | */ | |
268 | ||
269 | static inline __attribute__((const)) | |
270 | bool is_power_of_2(unsigned long n) | |
271 | { | |
272 | return (n != 0 && ((n & (n - 1)) == 0)); | |
273 | } | |
274 | ||
27050f53 JO |
275 | static inline unsigned next_pow2(unsigned x) |
276 | { | |
277 | if (!x) | |
278 | return 1; | |
279 | return 1ULL << (32 - __builtin_clz(x - 1)); | |
280 | } | |
281 | ||
61e04b33 | 282 | size_t hex_width(u64 v); |
b2aff5f6 | 283 | int hex2u64(const char *ptr, u64 *val); |
61e04b33 | 284 | |
08aa9cce | 285 | char *ltrim(char *s); |
cb1a28a0 ACM |
286 | char *rtrim(char *s); |
287 | ||
dc4552bf ACM |
288 | void dump_stack(void); |
289 | ||
0c1fe6b2 ACM |
290 | extern unsigned int page_size; |
291 | ||
2c803e52 | 292 | void get_term_dimensions(struct winsize *ws); |
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); | |
1355915a | 300 | #endif /* GIT_COMPAT_UTIL_H */ |