1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef GIT_COMPAT_UTIL_H
 3#define GIT_COMPAT_UTIL_H
 4
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5#define _BSD_SOURCE 1
 6/* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
 7#define _DEFAULT_SOURCE 1
 8
 
 
 
 
 
 9#include <stdbool.h>
10#include <stddef.h>
11#include <stdlib.h>
12#include <stdarg.h>
13#include <linux/compiler.h>
 
 
 
14#include <sys/types.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
15
16/* General helper functions */
17void usage(const char *err) __noreturn;
18void die(const char *err, ...) __noreturn __printf(1, 2);
 
 
19
20static inline void *zalloc(size_t size)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
21{
22	return calloc(1, size);
 
23}
24
25#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
 
 
 
 
26
27struct dirent;
28struct nsinfo;
29struct strlist;
 
 
 
 
 
 
30
31int mkdir_p(char *path, mode_t mode);
32int rm_rf(const char *path);
33struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
34bool lsdir_no_dot_filter(const char *name, struct dirent *d);
35int copyfile(const char *from, const char *to);
36int copyfile_mode(const char *from, const char *to, mode_t mode);
37int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi);
38
39ssize_t readn(int fd, void *buf, size_t n);
40ssize_t writen(int fd, const void *buf, size_t n);
41
42size_t hex_width(u64 v);
43int hex2u64(const char *ptr, u64 *val);
 
 
44
45extern unsigned int page_size;
46extern int cacheline_size;
 
 
47
48int fetch_kernel_version(unsigned int *puint,
49			 char *str, size_t str_sz);
50#define KVER_VERSION(x)		(((x) >> 16) & 0xff)
51#define KVER_PATCHLEVEL(x)	(((x) >> 8) & 0xff)
52#define KVER_SUBLEVEL(x)	((x) & 0xff)
53#define KVER_FMT	"%d.%d.%d"
54#define KVER_PARAM(x)	KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
55
56const char *perf_tip(const char *dirpath);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
57
58#ifndef HAVE_SCHED_GETCPU_SUPPORT
59int sched_getcpu(void);
60#endif
 
 
 
61
62#ifndef HAVE_SETNS_SUPPORT
63int setns(int fd, int nstype);
64#endif
65
66extern bool perf_singlethreaded;
 
 
 
 
 
 
 
67
68void perf_set_singlethreaded(void);
69void perf_set_multithreaded(void);
70
71#ifndef O_CLOEXEC
72#ifdef __sparc__
73#define O_CLOEXEC      0x400000
74#elif defined(__alpha__) || defined(__hppa__)
75#define O_CLOEXEC      010000000
76#else
77#define O_CLOEXEC      02000000
78#endif
79#endif
80
81#endif /* GIT_COMPAT_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
 84extern const char *graph_line;
 85extern const char *graph_dotted_line;
 86extern 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 */
133extern void usage(const char *err) NORETURN;
134extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
135extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
136extern 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
147extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
148
149extern int prefixcmp(const char *str, const char *prefix);
150extern void set_buildid_dir(void);
151extern void disable_buildid_cache(void);
152
153static 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
167static 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 */
178extern char *xstrdup(const char *str);
179extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
 
 
180
 
 
181
182static inline void *zalloc(size_t size)
183{
184	return calloc(1, size);
185}
186
187static 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
206extern 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
226static 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
233int mkdir_p(char *path, mode_t mode);
234int copyfile(const char *from, const char *to);
 
235
236s64 perf_atoll(const char *str);
237char **argv_split(const char *str, int *argcp);
238void argv_free(char **argv);
239bool strglobmatch(const char *str, const char *pat);
240bool strlazymatch(const char *str, const char *pat);
241int strtailcmp(const char *s1, const char *s2);
242unsigned long convert_unit(unsigned long value, char *unit);
243int readn(int fd, void *buf, size_t size);
244
245#define _STR(x) #x
246#define STR(x) _STR(x)
247
 
 
 
 
 
 
 
 
248#endif