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 #include <sys/select.h>
  74 #include <netinet/in.h>
  75 #include <netinet/tcp.h>
  76 #include <arpa/inet.h>
  77 #include <netdb.h>
  78 #include <pwd.h>
  79 #include <inttypes.h>
  80 #include "../../../include/linux/magic.h"
  81 #include "types.h"
  82 #include <sys/ttydefaults.h>
  83
  84 extern const char *graph_line;
  85 extern const char *graph_dotted_line;
  86 extern char buildid_dir[];
  87
  88 /* On most systems <limits.h> would have given us this, but
  89  * not on some systems (e.g. GNU/Hurd).
  90  */
  91 #ifndef PATH_MAX
  92 #define PATH_MAX 4096
  93 #endif
  94
  95 #ifndef PRIuMAX
  96 #define PRIuMAX "llu"
  97 #endif
  98
  99 #ifndef PRIu32
 100 #define PRIu32 "u"
 101 #endif
 102
 103 #ifndef PRIx32
 104 #define PRIx32 "x"
 105 #endif
 106
 107 #ifndef PATH_SEP
 108 #define PATH_SEP ':'
 109 #endif
 110
 111 #ifndef STRIP_EXTENSION
 112 #define STRIP_EXTENSION ""
 113 #endif
 114
 115 #ifndef has_dos_drive_prefix
 116 #define has_dos_drive_prefix(path) 0
 117 #endif
 118
 119 #ifndef is_dir_sep
 120 #define is_dir_sep(c) ((c) == '/')
 121 #endif
 122
 123 #ifdef __GNUC__
 124 #define NORETURN __attribute__((__noreturn__))
 125 #else
 126 #define NORETURN
 127 #ifndef __attribute__
 128 #define __attribute__(x)
 129 #endif
 130 #endif
 131
 132 /* General helper functions */
 133 extern void usage(const char *err) NORETURN;
 134 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
 135 extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
 136 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
 137
 138 #include "../../../include/linux/stringify.h"
 139
 140 #define DIE_IF(cnd)     \
 141         do { if (cnd)   \
 142                 die(" at (" __FILE__ ":" __stringify(__LINE__) "): "    \
 143                     __stringify(cnd) "\n");                             \
 144         } while (0)
 145
 146
 147 extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
 148
 149 extern int prefixcmp(const char *str, const char *prefix);
 150 extern void set_buildid_dir(void);
 151 extern void disable_buildid_cache(void);
 152
 153 static inline const char *skip_prefix(const char *str, const char *prefix)
 154 {
 155         size_t len = strlen(prefix);
 156         return strncmp(str, prefix, len) ? NULL : str + len;
 157 }
 158
 159 #ifdef __GLIBC_PREREQ
 160 #if __GLIBC_PREREQ(2, 1)
 161 #define HAVE_STRCHRNUL
 162 #endif
 163 #endif
 164
 165 #ifndef HAVE_STRCHRNUL
 166 #define strchrnul gitstrchrnul
 167 static inline char *gitstrchrnul(const char *s, int c)
 168 {
 169         while (*s && *s != c)
 170                 s++;
 171         return (char *)s;
 172 }
 173 #endif
 174
 175 /*
 176  * Wrappers:
 177  */
 178 extern char *xstrdup(const char *str);
 179 extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
 180
 181
 182 static inline void *zalloc(size_t size)
 183 {
 184         return calloc(1, size);
 185 }
 186
 187 static inline int has_extension(const char *filename, const char *ext)
 188 {
 189         size_t len = strlen(filename);
 190         size_t extlen = strlen(ext);
 191
 192         return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
 193 }
 194
 195 /* Sane ctype - no locale, and works with signed chars */
 196 #undef isascii
 197 #undef isspace
 198 #undef isdigit
 199 #undef isxdigit
 200 #undef isalpha
 201 #undef isprint
 202 #undef isalnum
 203 #undef tolower
 204 #undef toupper
 205
 206 extern unsigned char sane_ctype[256];
 207 #define GIT_SPACE               0x01
 208 #define GIT_DIGIT               0x02
 209 #define GIT_ALPHA               0x04
 210 #define GIT_GLOB_SPECIAL        0x08
 211 #define GIT_REGEX_SPECIAL       0x10
 212 #define GIT_PRINT_EXTRA         0x20
 213 #define GIT_PRINT               0x3E
 214 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
 215 #define isascii(x) (((x) & ~0x7f) == 0)
 216 #define isspace(x) sane_istest(x,GIT_SPACE)
 217 #define isdigit(x) sane_istest(x,GIT_DIGIT)
 218 #define isxdigit(x)     \
 219         (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
 220 #define isalpha(x) sane_istest(x,GIT_ALPHA)
 221 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
 222 #define isprint(x) sane_istest(x,GIT_PRINT)
 223 #define tolower(x) sane_case((unsigned char)(x), 0x20)
 224 #define toupper(x) sane_case((unsigned char)(x), 0)
 225
 226 static inline int sane_case(int x, int high)
 227 {
 228         if (sane_istest(x, GIT_ALPHA))
 229                 x = (x & ~0x20) | high;
 230         return x;
 231 }
 232
 233 int mkdir_p(char *path, mode_t mode);
 234 int copyfile(const char *from, const char *to);
 235
 236 s64 perf_atoll(const char *str);
 237 char **argv_split(const char *str, int *argcp);
 238 void argv_free(char **argv);
 239 bool strglobmatch(const char *str, const char *pat);
 240 bool strlazymatch(const char *str, const char *pat);
 241 unsigned long convert_unit(unsigned long value, char *unit);
 242 int readn(int fd, void *buf, size_t size);
 243
 244 #define _STR(x) #x
 245 #define STR(x) _STR(x)
 246
 247 #endif