tools/perf/util/util.h

   1 #ifndef GIT_COMPAT_UTIL_H
   2 #define GIT_COMPAT_UTIL_H
   3
   4 #define _FILE_OFFSET_BITS 64
   5
   6 #ifndef FLEX_ARRAY
   7 /*
   8  * See if our compiler is known to support flexible array members.
   9  */
  10 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
  11 # define FLEX_ARRAY /* empty */
  12 #elif defined(__GNUC__)
  13 # if (__GNUC__ >= 3)
  14 #  define FLEX_ARRAY /* empty */
  15 # else
  16 #  define FLEX_ARRAY 0 /* older GNU extension */
  17 # endif
  18 #endif
  19
  20 /*
  21  * Otherwise, default to safer but a bit wasteful traditional style
  22  */
  23 #ifndef FLEX_ARRAY
  24 # define FLEX_ARRAY 1
  25 #endif
  26 #endif
  27
  28 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
  29
  30 #ifdef __GNUC__
  31 #define TYPEOF(x) (__typeof__(x))
  32 #else
  33 #define TYPEOF(x)
  34 #endif
  35
  36 #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
  37 #define HAS_MULTI_BITS(i)  ((i) & ((i) - 1))  /* checks if an integer has more than 1 bit set */
  38
  39 /* Approximation of the length of the decimal representation of this type. */
  40 #define decimal_length(x)       ((int)(sizeof(x) * 2.56 + 0.5) + 1)
  41
  42 #define _ALL_SOURCE 1
  43 #define _GNU_SOURCE 1
  44 #define _BSD_SOURCE 1
  45 #define HAS_BOOL
  46
  47 #include <unistd.h>
  48 #include <stdio.h>
  49 #include <sys/stat.h>
  50 #include <sys/statfs.h>
  51 #include <fcntl.h>
  52 #include <stdbool.h>
  53 #include <stddef.h>
  54 #include <stdlib.h>
  55 #include <stdarg.h>
  56 #include <string.h>
  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>
  69 #include <sys/wait.h>
  70 #include <sys/poll.h>
  71 #include <sys/socket.h>
  72 #include <sys/ioctl.h>
  73 #ifndef NO_SYS_SELECT_H
  74 #include <sys/select.h>
  75 #endif
  76 #include <netinet/in.h>
  77 #include <netinet/tcp.h>
  78 #include <arpa/inet.h>
  79 #include <netdb.h>
  80 #include <pwd.h>
  81 #include <inttypes.h>
  82 #include "../../../include/linux/magic.h"
  83 #include "types.h"
  84 #include <sys/ttydefaults.h>
  85
  86 #ifndef NO_ICONV
  87 #include <iconv.h>
  88 #endif
  89
  90 extern const char *graph_line;
  91 extern const char *graph_dotted_line;
  92 extern char buildid_dir[];
  93
  94 /* On most systems <limits.h> would have given us this, but
  95  * not on some systems (e.g. GNU/Hurd).
  96  */
  97 #ifndef PATH_MAX
  98 #define PATH_MAX 4096
  99 #endif
 100
 101 #ifndef PRIuMAX
 102 #define PRIuMAX "llu"
 103 #endif
 104
 105 #ifndef PRIu32
 106 #define PRIu32 "u"
 107 #endif
 108
 109 #ifndef PRIx32
 110 #define PRIx32 "x"
 111 #endif
 112
 113 #ifndef PATH_SEP
 114 #define PATH_SEP ':'
 115 #endif
 116
 117 #ifndef STRIP_EXTENSION
 118 #define STRIP_EXTENSION ""
 119 #endif
 120
 121 #ifndef has_dos_drive_prefix
 122 #define has_dos_drive_prefix(path) 0
 123 #endif
 124
 125 #ifndef is_dir_sep
 126 #define is_dir_sep(c) ((c) == '/')
 127 #endif
 128
 129 #ifdef __GNUC__
 130 #define NORETURN __attribute__((__noreturn__))
 131 #else
 132 #define NORETURN
 133 #ifndef __attribute__
 134 #define __attribute__(x)
 135 #endif
 136 #endif
 137
 138 /* General helper functions */
 139 extern void usage(const char *err) NORETURN;
 140 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
 141 extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
 142 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
 143
 144 #include "../../../include/linux/stringify.h"
 145
 146 #define DIE_IF(cnd)     \
 147         do { if (cnd)   \
 148                 die(" at (" __FILE__ ":" __stringify(__LINE__) "): "    \
 149                     __stringify(cnd) "\n");                             \
 150         } while (0)
 151
 152
 153 extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
 154
 155 extern int prefixcmp(const char *str, const char *prefix);
 156 extern void set_buildid_dir(void);
 157 extern void disable_buildid_cache(void);
 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
 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
 181 /*
 182  * Wrappers:
 183  */
 184 extern char *xstrdup(const char *str);
 185 extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
 186
 187
 188 static inline void *zalloc(size_t size)
 189 {
 190         return calloc(1, size);
 191 }
 192
 193 static inline int has_extension(const char *filename, const char *ext)
 194 {
 195         size_t len = strlen(filename);
 196         size_t extlen = strlen(ext);
 197
 198         return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
 199 }
 200
 201 /* Sane ctype - no locale, and works with signed chars */
 202 #undef isascii
 203 #undef isspace
 204 #undef isdigit
 205 #undef isxdigit
 206 #undef isalpha
 207 #undef isprint
 208 #undef isalnum
 209 #undef tolower
 210 #undef toupper
 211
 212 extern unsigned char sane_ctype[256];
 213 #define GIT_SPACE               0x01
 214 #define GIT_DIGIT               0x02
 215 #define GIT_ALPHA               0x04
 216 #define GIT_GLOB_SPECIAL        0x08
 217 #define GIT_REGEX_SPECIAL       0x10
 218 #define GIT_PRINT_EXTRA         0x20
 219 #define GIT_PRINT               0x3E
 220 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
 221 #define isascii(x) (((x) & ~0x7f) == 0)
 222 #define isspace(x) sane_istest(x,GIT_SPACE)
 223 #define isdigit(x) sane_istest(x,GIT_DIGIT)
 224 #define isxdigit(x)     \
 225         (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
 226 #define isalpha(x) sane_istest(x,GIT_ALPHA)
 227 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
 228 #define isprint(x) sane_istest(x,GIT_PRINT)
 229 #define tolower(x) sane_case((unsigned char)(x), 0x20)
 230 #define toupper(x) sane_case((unsigned char)(x), 0)
 231
 232 static inline int sane_case(int x, int high)
 233 {
 234         if (sane_istest(x, GIT_ALPHA))
 235                 x = (x & ~0x20) | high;
 236         return x;
 237 }
 238
 239 #ifndef DIR_HAS_BSD_GROUP_SEMANTICS
 240 # define FORCE_DIR_SET_GID S_ISGID
 241 #else
 242 # define FORCE_DIR_SET_GID 0
 243 #endif
 244
 245 #ifdef NO_NSEC
 246 #undef USE_NSEC
 247 #define ST_CTIME_NSEC(st) 0
 248 #define ST_MTIME_NSEC(st) 0
 249 #else
 250 #ifdef USE_ST_TIMESPEC
 251 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
 252 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
 253 #else
 254 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
 255 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
 256 #endif
 257 #endif
 258
 259 int mkdir_p(char *path, mode_t mode);
 260 int copyfile(const char *from, const char *to);
 261
 262 s64 perf_atoll(const char *str);
 263 char **argv_split(const char *str, int *argcp);
 264 void argv_free(char **argv);
 265 bool strglobmatch(const char *str, const char *pat);
 266 bool strlazymatch(const char *str, const char *pat);
 267 unsigned long convert_unit(unsigned long value, char *unit);
 268 int readn(int fd, void *buf, size_t size);
 269
 270 #define _STR(x) #x
 271 #define STR(x) _STR(x)
 272
 273 #endif