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/* 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 <fcntl.h>
10#include <stdbool.h>
11#include <stddef.h>
 
 
12#include <linux/compiler.h>
13#include <sys/types.h>
14
15/* General helper functions */
16void usage(const char *err) __noreturn;
17void die(const char *err, ...) __noreturn __printf(1, 2);
18
 
 
 
 
 
 
 
19struct dirent;
 
20struct strlist;
21
22int mkdir_p(char *path, mode_t mode);
23int rm_rf(const char *path);
24int rm_rf_perf_data(const char *path);
25struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
26bool lsdir_no_dot_filter(const char *name, struct dirent *d);
 
 
 
 
 
 
27
28size_t hex_width(u64 v);
 
29
30int sysctl__max_stack(void);
 
31
32int fetch_kernel_version(unsigned int *puint,
33			 char *str, size_t str_sz);
34#define KVER_VERSION(x)		(((x) >> 16) & 0xff)
35#define KVER_PATCHLEVEL(x)	(((x) >> 8) & 0xff)
36#define KVER_SUBLEVEL(x)	((x) & 0xff)
37#define KVER_FMT	"%d.%d.%d"
38#define KVER_PARAM(x)	KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
39
40const char *perf_tip(const char *dirpath);
41
42#ifndef HAVE_SCHED_GETCPU_SUPPORT
43int sched_getcpu(void);
44#endif
45
 
 
 
 
46extern bool perf_singlethreaded;
47
48void perf_set_singlethreaded(void);
49void perf_set_multithreaded(void);
50
51char *perf_exe(char *buf, int len);
52
53#ifndef O_CLOEXEC
54#ifdef __sparc__
55#define O_CLOEXEC      0x400000
56#elif defined(__alpha__) || defined(__hppa__)
57#define O_CLOEXEC      010000000
58#else
59#define O_CLOEXEC      02000000
60#endif
61#endif
62
63#endif /* GIT_COMPAT_UTIL_H */