362 lines
8.9 KiB
C
362 lines
8.9 KiB
C
#ifndef GIT_COMPAT_UTIL_H
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#define GIT_COMPAT_UTIL_H
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#ifndef FLEX_ARRAY
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/*
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* See if our compiler is known to support flexible array members.
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*/
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#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
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# define FLEX_ARRAY /* empty */
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#elif defined(__GNUC__)
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# if (__GNUC__ >= 3)
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# define FLEX_ARRAY /* empty */
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# else
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# define FLEX_ARRAY 0 /* older GNU extension */
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# endif
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#endif
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/*
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* Otherwise, default to safer but a bit wasteful traditional style
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*/
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#ifndef FLEX_ARRAY
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# define FLEX_ARRAY 1
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#endif
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#endif
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#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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#ifdef __GNUC__
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#define TYPEOF(x) (__typeof__(x))
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#else
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#define TYPEOF(x)
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#endif
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#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
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#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
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/* Approximation of the length of the decimal representation of this type. */
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#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
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#define _ALL_SOURCE 1
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#define _BSD_SOURCE 1
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/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
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#define _DEFAULT_SOURCE 1
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#define HAS_BOOL
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#include <unistd.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#include <fcntl.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include <limits.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <sys/time.h>
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#include <time.h>
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#include <signal.h>
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#include <fnmatch.h>
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#include <assert.h>
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#include <regex.h>
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#include <utime.h>
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#include <sys/wait.h>
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#include <poll.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <inttypes.h>
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#include <linux/kernel.h>
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#include <linux/magic.h>
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#include <linux/types.h>
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#include <sys/ttydefaults.h>
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#include <api/fs/tracing_path.h>
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#include <termios.h>
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#include <linux/bitops.h>
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#include <termios.h>
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extern const char *graph_line;
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extern const char *graph_dotted_line;
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extern char buildid_dir[];
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/* On most systems <limits.h> would have given us this, but
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* not on some systems (e.g. GNU/Hurd).
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*/
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#ifndef PATH_MAX
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#define PATH_MAX 4096
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#endif
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#ifndef PRIuMAX
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#define PRIuMAX "llu"
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#endif
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#ifndef PRIu32
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#define PRIu32 "u"
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#endif
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#ifndef PRIx32
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#define PRIx32 "x"
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#endif
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#ifndef PATH_SEP
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#define PATH_SEP ':'
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#endif
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#ifndef STRIP_EXTENSION
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#define STRIP_EXTENSION ""
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#endif
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#ifndef has_dos_drive_prefix
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#define has_dos_drive_prefix(path) 0
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#endif
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#ifndef is_dir_sep
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#define is_dir_sep(c) ((c) == '/')
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#endif
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#ifdef __GNUC__
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#define NORETURN __attribute__((__noreturn__))
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#else
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#define NORETURN
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#ifndef __attribute__
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#define __attribute__(x)
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#endif
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#endif
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#define PERF_GTK_DSO "libperf-gtk.so"
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/* General helper functions */
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extern void usage(const char *err) NORETURN;
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extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
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extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
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extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
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#include "../../../include/linux/stringify.h"
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#define DIE_IF(cnd) \
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do { if (cnd) \
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die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \
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__stringify(cnd) "\n"); \
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} while (0)
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extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
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extern void set_warning_routine(void (*routine)(const char *err, va_list params));
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extern int prefixcmp(const char *str, const char *prefix);
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extern void set_buildid_dir(const char *dir);
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static inline const char *skip_prefix(const char *str, const char *prefix)
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{
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size_t len = strlen(prefix);
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return strncmp(str, prefix, len) ? NULL : str + len;
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}
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#ifdef __GLIBC_PREREQ
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#if __GLIBC_PREREQ(2, 1)
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#define HAVE_STRCHRNUL
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#endif
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#endif
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#ifndef HAVE_STRCHRNUL
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#define strchrnul gitstrchrnul
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static inline char *gitstrchrnul(const char *s, int c)
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{
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while (*s && *s != c)
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s++;
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return (char *)s;
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}
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#endif
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/*
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* Wrappers:
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*/
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extern char *xstrdup(const char *str);
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extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
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static inline void *zalloc(size_t size)
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{
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return calloc(1, size);
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}
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#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
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static inline int has_extension(const char *filename, const char *ext)
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{
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size_t len = strlen(filename);
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size_t extlen = strlen(ext);
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return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
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}
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/* Sane ctype - no locale, and works with signed chars */
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#undef isascii
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#undef isspace
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#undef isdigit
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#undef isxdigit
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#undef isalpha
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#undef isprint
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#undef isalnum
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#undef islower
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#undef isupper
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#undef tolower
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#undef toupper
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#ifndef NSEC_PER_MSEC
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#define NSEC_PER_MSEC 1000000L
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#endif
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int parse_nsec_time(const char *str, u64 *ptime);
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extern unsigned char sane_ctype[256];
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#define GIT_SPACE 0x01
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#define GIT_DIGIT 0x02
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#define GIT_ALPHA 0x04
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#define GIT_GLOB_SPECIAL 0x08
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#define GIT_REGEX_SPECIAL 0x10
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#define GIT_PRINT_EXTRA 0x20
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#define GIT_PRINT 0x3E
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#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
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#define isascii(x) (((x) & ~0x7f) == 0)
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#define isspace(x) sane_istest(x,GIT_SPACE)
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#define isdigit(x) sane_istest(x,GIT_DIGIT)
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#define isxdigit(x) \
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(sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
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#define isalpha(x) sane_istest(x,GIT_ALPHA)
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#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
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#define isprint(x) sane_istest(x,GIT_PRINT)
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#define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20))
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#define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20))
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#define tolower(x) sane_case((unsigned char)(x), 0x20)
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#define toupper(x) sane_case((unsigned char)(x), 0)
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static inline int sane_case(int x, int high)
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{
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if (sane_istest(x, GIT_ALPHA))
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x = (x & ~0x20) | high;
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return x;
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}
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int mkdir_p(char *path, mode_t mode);
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int rm_rf(char *path);
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int copyfile(const char *from, const char *to);
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int copyfile_mode(const char *from, const char *to, mode_t mode);
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int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
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s64 perf_atoll(const char *str);
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char **argv_split(const char *str, int *argcp);
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void argv_free(char **argv);
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bool strglobmatch(const char *str, const char *pat);
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bool strlazymatch(const char *str, const char *pat);
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static inline bool strisglob(const char *str)
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{
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return strpbrk(str, "*?[") != NULL;
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}
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int strtailcmp(const char *s1, const char *s2);
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char *strxfrchar(char *s, char from, char to);
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unsigned long convert_unit(unsigned long value, char *unit);
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ssize_t readn(int fd, void *buf, size_t n);
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ssize_t writen(int fd, void *buf, size_t n);
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struct perf_event_attr;
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void event_attr_init(struct perf_event_attr *attr);
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#define _STR(x) #x
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#define STR(x) _STR(x)
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size_t hex_width(u64 v);
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int hex2u64(const char *ptr, u64 *val);
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char *ltrim(char *s);
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char *rtrim(char *s);
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void dump_stack(void);
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void sighandler_dump_stack(int sig);
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extern unsigned int page_size;
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extern int cacheline_size;
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void get_term_dimensions(struct winsize *ws);
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void set_term_quiet_input(struct termios *old);
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struct parse_tag {
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char tag;
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int mult;
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};
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unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
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#define SRCLINE_UNKNOWN ((char *) "??:0")
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static inline int path__join(char *bf, size_t size,
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const char *path1, const char *path2)
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{
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return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2);
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}
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static inline int path__join3(char *bf, size_t size,
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const char *path1, const char *path2,
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const char *path3)
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{
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return scnprintf(bf, size, "%s%s%s%s%s",
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path1, path1[0] ? "/" : "",
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path2, path2[0] ? "/" : "", path3);
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}
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struct dso;
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struct symbol;
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extern bool srcline_full_filename;
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char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
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bool show_sym);
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char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
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bool show_sym, bool unwind_inlines);
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void free_srcline(char *srcline);
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int filename__read_str(const char *filename, char **buf, size_t *sizep);
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int perf_event_paranoid(void);
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void mem_bswap_64(void *src, int byte_size);
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void mem_bswap_32(void *src, int byte_size);
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const char *get_filename_for_perf_kvm(void);
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bool find_process(const char *name);
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#ifdef HAVE_ZLIB_SUPPORT
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int gzip_decompress_to_file(const char *input, int output_fd);
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#endif
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#ifdef HAVE_LZMA_SUPPORT
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int lzma_decompress_to_file(const char *input, int output_fd);
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#endif
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char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints);
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static inline char *asprintf_expr_in_ints(const char *var, size_t nints, int *ints)
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{
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return asprintf_expr_inout_ints(var, true, nints, ints);
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}
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static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int *ints)
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{
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return asprintf_expr_inout_ints(var, false, nints, ints);
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}
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int get_stack_size(const char *str, unsigned long *_size);
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int fetch_kernel_version(unsigned int *puint,
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char *str, size_t str_sz);
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#define KVER_VERSION(x) (((x) >> 16) & 0xff)
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#define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
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#define KVER_SUBLEVEL(x) ((x) & 0xff)
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#define KVER_FMT "%d.%d.%d"
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#define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
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#endif /* GIT_COMPAT_UTIL_H */
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