1 #ifndef GIT_COMPAT_UTIL_H
2 #define GIT_COMPAT_UTIL_H
6 /* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
7 #define _DEFAULT_SOURCE 1
15 #include <linux/types.h>
17 extern char buildid_dir[];
20 #define NORETURN __attribute__((__noreturn__))
24 #define __attribute__(x)
28 #define PERF_GTK_DSO "libperf-gtk.so"
30 /* General helper functions */
31 void usage(const char *err) NORETURN;
32 void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
33 int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
34 void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
36 void set_warning_routine(void (*routine)(const char *err, va_list params));
38 int prefixcmp(const char *str, const char *prefix);
39 void set_buildid_dir(const char *dir);
41 static inline void *zalloc(size_t size)
43 return calloc(1, size);
46 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
51 int mkdir_p(char *path, mode_t mode);
52 int rm_rf(const char *path);
53 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
54 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
55 int copyfile(const char *from, const char *to);
56 int copyfile_mode(const char *from, const char *to, mode_t mode);
57 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
59 ssize_t readn(int fd, void *buf, size_t n);
60 ssize_t writen(int fd, void *buf, size_t n);
62 struct perf_event_attr;
64 void event_attr_init(struct perf_event_attr *attr);
66 size_t hex_width(u64 v);
67 int hex2u64(const char *ptr, u64 *val);
69 extern unsigned int page_size;
70 extern int cacheline_size;
71 extern int sysctl_perf_event_max_stack;
72 extern int sysctl_perf_event_max_contexts_per_stack;
79 unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
81 int perf_event_paranoid(void);
83 void mem_bswap_64(void *src, int byte_size);
84 void mem_bswap_32(void *src, int byte_size);
86 bool find_process(const char *name);
88 int fetch_kernel_version(unsigned int *puint,
89 char *str, size_t str_sz);
90 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
91 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
92 #define KVER_SUBLEVEL(x) ((x) & 0xff)
93 #define KVER_FMT "%d.%d.%d"
94 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
96 const char *perf_tip(const char *dirpath);
98 #ifndef HAVE_SCHED_GETCPU_SUPPORT
99 int sched_getcpu(void);
102 #endif /* GIT_COMPAT_UTIL_H */