727dad10c1
And also make xrealloc and xmalloc weak symbols so that we don't have this problem: /usr/lib/gcc/x86_64-redhat-linux/4.4.1/../../../../lib64/libiberty.a(xmalloc.o): In function `xrealloc': (.text+0xc0): multiple definition of `xrealloc' libperf.a(wrapper.o):/home/acme_unencrypted/git/linux-2.6-tip/tools/perf/util/wrapper.c:67: first defined here collect2: ld returned 1 exit status Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1259071517-3242-4-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
406 lines
9.2 KiB
C
406 lines
9.2 KiB
C
#ifndef GIT_COMPAT_UTIL_H
|
|
#define GIT_COMPAT_UTIL_H
|
|
|
|
#define _FILE_OFFSET_BITS 64
|
|
|
|
#ifndef FLEX_ARRAY
|
|
/*
|
|
* See if our compiler is known to support flexible array members.
|
|
*/
|
|
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
|
|
# define FLEX_ARRAY /* empty */
|
|
#elif defined(__GNUC__)
|
|
# if (__GNUC__ >= 3)
|
|
# define FLEX_ARRAY /* empty */
|
|
# else
|
|
# define FLEX_ARRAY 0 /* older GNU extension */
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
* Otherwise, default to safer but a bit wasteful traditional style
|
|
*/
|
|
#ifndef FLEX_ARRAY
|
|
# define FLEX_ARRAY 1
|
|
#endif
|
|
#endif
|
|
|
|
#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
|
|
|
|
#ifdef __GNUC__
|
|
#define TYPEOF(x) (__typeof__(x))
|
|
#else
|
|
#define TYPEOF(x)
|
|
#endif
|
|
|
|
#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
|
|
#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
|
|
|
|
/* Approximation of the length of the decimal representation of this type. */
|
|
#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
|
|
|
|
#define _ALL_SOURCE 1
|
|
#define _GNU_SOURCE 1
|
|
#define _BSD_SOURCE 1
|
|
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/statfs.h>
|
|
#include <fcntl.h>
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <dirent.h>
|
|
#include <sys/time.h>
|
|
#include <time.h>
|
|
#include <signal.h>
|
|
#include <fnmatch.h>
|
|
#include <assert.h>
|
|
#include <regex.h>
|
|
#include <utime.h>
|
|
#include <sys/wait.h>
|
|
#include <sys/poll.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/ioctl.h>
|
|
#ifndef NO_SYS_SELECT_H
|
|
#include <sys/select.h>
|
|
#endif
|
|
#include <netinet/in.h>
|
|
#include <netinet/tcp.h>
|
|
#include <arpa/inet.h>
|
|
#include <netdb.h>
|
|
#include <pwd.h>
|
|
#include <inttypes.h>
|
|
#include "../../../include/linux/magic.h"
|
|
|
|
|
|
#ifndef NO_ICONV
|
|
#include <iconv.h>
|
|
#endif
|
|
|
|
extern const char *graph_line;
|
|
extern const char *graph_dotted_line;
|
|
|
|
/* On most systems <limits.h> would have given us this, but
|
|
* not on some systems (e.g. GNU/Hurd).
|
|
*/
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX 4096
|
|
#endif
|
|
|
|
#ifndef PRIuMAX
|
|
#define PRIuMAX "llu"
|
|
#endif
|
|
|
|
#ifndef PRIu32
|
|
#define PRIu32 "u"
|
|
#endif
|
|
|
|
#ifndef PRIx32
|
|
#define PRIx32 "x"
|
|
#endif
|
|
|
|
#ifndef PATH_SEP
|
|
#define PATH_SEP ':'
|
|
#endif
|
|
|
|
#ifndef STRIP_EXTENSION
|
|
#define STRIP_EXTENSION ""
|
|
#endif
|
|
|
|
#ifndef has_dos_drive_prefix
|
|
#define has_dos_drive_prefix(path) 0
|
|
#endif
|
|
|
|
#ifndef is_dir_sep
|
|
#define is_dir_sep(c) ((c) == '/')
|
|
#endif
|
|
|
|
#ifdef __GNUC__
|
|
#define NORETURN __attribute__((__noreturn__))
|
|
#else
|
|
#define NORETURN
|
|
#ifndef __attribute__
|
|
#define __attribute__(x)
|
|
#endif
|
|
#endif
|
|
|
|
/* General helper functions */
|
|
extern void usage(const char *err) NORETURN;
|
|
extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
|
|
extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
|
|
extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
|
|
|
|
#include "../../../include/linux/stringify.h"
|
|
|
|
#define DIE_IF(cnd) \
|
|
do { if (cnd) \
|
|
die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \
|
|
__stringify(cnd) "\n"); \
|
|
} while (0)
|
|
|
|
|
|
extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
|
|
|
|
extern int prefixcmp(const char *str, const char *prefix);
|
|
extern time_t tm_to_time_t(const struct tm *tm);
|
|
|
|
static inline const char *skip_prefix(const char *str, const char *prefix)
|
|
{
|
|
size_t len = strlen(prefix);
|
|
return strncmp(str, prefix, len) ? NULL : str + len;
|
|
}
|
|
|
|
#if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
|
|
|
|
#ifndef PROT_READ
|
|
#define PROT_READ 1
|
|
#define PROT_WRITE 2
|
|
#define MAP_PRIVATE 1
|
|
#define MAP_FAILED ((void*)-1)
|
|
#endif
|
|
|
|
#define mmap git_mmap
|
|
#define munmap git_munmap
|
|
extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
|
|
extern int git_munmap(void *start, size_t length);
|
|
|
|
#else /* NO_MMAP || USE_WIN32_MMAP */
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#endif /* NO_MMAP || USE_WIN32_MMAP */
|
|
|
|
#ifdef NO_MMAP
|
|
|
|
/* This value must be multiple of (pagesize * 2) */
|
|
#define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
|
|
|
|
#else /* NO_MMAP */
|
|
|
|
/* This value must be multiple of (pagesize * 2) */
|
|
#define DEFAULT_PACKED_GIT_WINDOW_SIZE \
|
|
(sizeof(void*) >= 8 \
|
|
? 1 * 1024 * 1024 * 1024 \
|
|
: 32 * 1024 * 1024)
|
|
|
|
#endif /* NO_MMAP */
|
|
|
|
#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
|
|
#define on_disk_bytes(st) ((st).st_size)
|
|
#else
|
|
#define on_disk_bytes(st) ((st).st_blocks * 512)
|
|
#endif
|
|
|
|
#define DEFAULT_PACKED_GIT_LIMIT \
|
|
((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
|
|
|
|
#ifdef NO_PREAD
|
|
#define pread git_pread
|
|
extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
|
|
#endif
|
|
/*
|
|
* Forward decl that will remind us if its twin in cache.h changes.
|
|
* This function is used in compat/pread.c. But we can't include
|
|
* cache.h there.
|
|
*/
|
|
extern ssize_t read_in_full(int fd, void *buf, size_t count);
|
|
|
|
#ifdef NO_SETENV
|
|
#define setenv gitsetenv
|
|
extern int gitsetenv(const char *, const char *, int);
|
|
#endif
|
|
|
|
#ifdef NO_MKDTEMP
|
|
#define mkdtemp gitmkdtemp
|
|
extern char *gitmkdtemp(char *);
|
|
#endif
|
|
|
|
#ifdef NO_UNSETENV
|
|
#define unsetenv gitunsetenv
|
|
extern void gitunsetenv(const char *);
|
|
#endif
|
|
|
|
#ifdef NO_STRCASESTR
|
|
#define strcasestr gitstrcasestr
|
|
extern char *gitstrcasestr(const char *haystack, const char *needle);
|
|
#endif
|
|
|
|
#ifdef NO_STRLCPY
|
|
#define strlcpy gitstrlcpy
|
|
extern size_t gitstrlcpy(char *, const char *, size_t);
|
|
#endif
|
|
|
|
#ifdef NO_STRTOUMAX
|
|
#define strtoumax gitstrtoumax
|
|
extern uintmax_t gitstrtoumax(const char *, char **, int);
|
|
#endif
|
|
|
|
#ifdef NO_HSTRERROR
|
|
#define hstrerror githstrerror
|
|
extern const char *githstrerror(int herror);
|
|
#endif
|
|
|
|
#ifdef NO_MEMMEM
|
|
#define memmem gitmemmem
|
|
void *gitmemmem(const void *haystack, size_t haystacklen,
|
|
const void *needle, size_t needlelen);
|
|
#endif
|
|
|
|
#ifdef FREAD_READS_DIRECTORIES
|
|
#ifdef fopen
|
|
#undef fopen
|
|
#endif
|
|
#define fopen(a,b) git_fopen(a,b)
|
|
extern FILE *git_fopen(const char*, const char*);
|
|
#endif
|
|
|
|
#ifdef SNPRINTF_RETURNS_BOGUS
|
|
#define snprintf git_snprintf
|
|
extern int git_snprintf(char *str, size_t maxsize,
|
|
const char *format, ...);
|
|
#define vsnprintf git_vsnprintf
|
|
extern int git_vsnprintf(char *str, size_t maxsize,
|
|
const char *format, va_list ap);
|
|
#endif
|
|
|
|
#ifdef __GLIBC_PREREQ
|
|
#if __GLIBC_PREREQ(2, 1)
|
|
#define HAVE_STRCHRNUL
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef HAVE_STRCHRNUL
|
|
#define strchrnul gitstrchrnul
|
|
static inline char *gitstrchrnul(const char *s, int c)
|
|
{
|
|
while (*s && *s != c)
|
|
s++;
|
|
return (char *)s;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Wrappers:
|
|
*/
|
|
extern char *xstrdup(const char *str);
|
|
extern void *xmalloc(size_t size) __attribute__((weak));
|
|
extern void *xmemdupz(const void *data, size_t len);
|
|
extern char *xstrndup(const char *str, size_t len);
|
|
extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
|
|
|
|
static inline void *zalloc(size_t size)
|
|
{
|
|
return calloc(1, size);
|
|
}
|
|
|
|
static inline size_t xsize_t(off_t len)
|
|
{
|
|
return (size_t)len;
|
|
}
|
|
|
|
static inline int has_extension(const char *filename, const char *ext)
|
|
{
|
|
size_t len = strlen(filename);
|
|
size_t extlen = strlen(ext);
|
|
return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
|
|
}
|
|
|
|
/* Sane ctype - no locale, and works with signed chars */
|
|
#undef isascii
|
|
#undef isspace
|
|
#undef isdigit
|
|
#undef isxdigit
|
|
#undef isalpha
|
|
#undef isprint
|
|
#undef isalnum
|
|
#undef tolower
|
|
#undef toupper
|
|
extern unsigned char sane_ctype[256];
|
|
#define GIT_SPACE 0x01
|
|
#define GIT_DIGIT 0x02
|
|
#define GIT_ALPHA 0x04
|
|
#define GIT_GLOB_SPECIAL 0x08
|
|
#define GIT_REGEX_SPECIAL 0x10
|
|
#define GIT_PRINT_EXTRA 0x20
|
|
#define GIT_PRINT 0x3E
|
|
#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
|
|
#define isascii(x) (((x) & ~0x7f) == 0)
|
|
#define isspace(x) sane_istest(x,GIT_SPACE)
|
|
#define isdigit(x) sane_istest(x,GIT_DIGIT)
|
|
#define isxdigit(x) \
|
|
(sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
|
|
#define isalpha(x) sane_istest(x,GIT_ALPHA)
|
|
#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
|
|
#define isprint(x) sane_istest(x,GIT_PRINT)
|
|
#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
|
|
#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
|
|
#define tolower(x) sane_case((unsigned char)(x), 0x20)
|
|
#define toupper(x) sane_case((unsigned char)(x), 0)
|
|
|
|
static inline int sane_case(int x, int high)
|
|
{
|
|
if (sane_istest(x, GIT_ALPHA))
|
|
x = (x & ~0x20) | high;
|
|
return x;
|
|
}
|
|
|
|
static inline int strtoul_ui(char const *s, int base, unsigned int *result)
|
|
{
|
|
unsigned long ul;
|
|
char *p;
|
|
|
|
errno = 0;
|
|
ul = strtoul(s, &p, base);
|
|
if (errno || *p || p == s || (unsigned int) ul != ul)
|
|
return -1;
|
|
*result = ul;
|
|
return 0;
|
|
}
|
|
|
|
static inline int strtol_i(char const *s, int base, int *result)
|
|
{
|
|
long ul;
|
|
char *p;
|
|
|
|
errno = 0;
|
|
ul = strtol(s, &p, base);
|
|
if (errno || *p || p == s || (int) ul != ul)
|
|
return -1;
|
|
*result = ul;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef INTERNAL_QSORT
|
|
void git_qsort(void *base, size_t nmemb, size_t size,
|
|
int(*compar)(const void *, const void *));
|
|
#define qsort git_qsort
|
|
#endif
|
|
|
|
#ifndef DIR_HAS_BSD_GROUP_SEMANTICS
|
|
# define FORCE_DIR_SET_GID S_ISGID
|
|
#else
|
|
# define FORCE_DIR_SET_GID 0
|
|
#endif
|
|
|
|
#ifdef NO_NSEC
|
|
#undef USE_NSEC
|
|
#define ST_CTIME_NSEC(st) 0
|
|
#define ST_MTIME_NSEC(st) 0
|
|
#else
|
|
#ifdef USE_ST_TIMESPEC
|
|
#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
|
|
#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
|
|
#else
|
|
#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
|
|
#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
|
|
#endif
|
|
#endif
|
|
|
|
#endif
|