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
17 #include <linux/types.h>
19 extern char buildid_dir[];
22 #define NORETURN __attribute__((__noreturn__))
26 #define __attribute__(x)
30 #define PERF_GTK_DSO "libperf-gtk.so"
32 /* General helper functions */
33 void usage(const char *err) NORETURN;
34 void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
35 int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
36 void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
38 void set_warning_routine(void (*routine)(const char *err, va_list params));
40 int prefixcmp(const char *str, const char *prefix);
41 void set_buildid_dir(const char *dir);
43 static inline void *zalloc(size_t size)
45 return calloc(1, size);
48 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
53 int mkdir_p(char *path, mode_t mode);
54 int rm_rf(const char *path);
55 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
56 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
57 int copyfile(const char *from, const char *to);
58 int copyfile_mode(const char *from, const char *to, mode_t mode);
59 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
61 ssize_t readn(int fd, void *buf, size_t n);
62 ssize_t writen(int fd, void *buf, size_t n);
64 struct perf_event_attr;
66 void event_attr_init(struct perf_event_attr *attr);
68 size_t hex_width(u64 v);
69 int hex2u64(const char *ptr, u64 *val);
71 extern unsigned int page_size;
72 extern int cacheline_size;
73 extern int sysctl_perf_event_max_stack;
74 extern int sysctl_perf_event_max_contexts_per_stack;
81 unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
83 int perf_event_paranoid(void);
85 void mem_bswap_64(void *src, int byte_size);
86 void mem_bswap_32(void *src, int byte_size);
88 bool find_process(const char *name);
90 int fetch_kernel_version(unsigned int *puint,
91 char *str, size_t str_sz);
92 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
93 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
94 #define KVER_SUBLEVEL(x) ((x) & 0xff)
95 #define KVER_FMT "%d.%d.%d"
96 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
98 const char *perf_tip(const char *dirpath);
100 #ifndef HAVE_SCHED_GETCPU_SUPPORT
101 int sched_getcpu(void);
104 #endif /* GIT_COMPAT_UTIL_H */