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
13 #include <sys/statfs.h>
22 #include <sys/param.h>
23 #include <sys/types.h>
34 #include <sys/socket.h>
35 #include <sys/ioctl.h>
36 #include <linux/kernel.h>
37 #include <linux/types.h>
38 #include <sys/ttydefaults.h>
39 #include <api/fs/tracing_path.h>
41 #include <linux/bitops.h>
45 extern char buildid_dir
[];
48 #define NORETURN __attribute__((__noreturn__))
52 #define __attribute__(x)
56 #define PERF_GTK_DSO "libperf-gtk.so"
58 /* General helper functions */
59 void usage(const char *err
) NORETURN
;
60 void die(const char *err
, ...) NORETURN
__attribute__((format (printf
, 1, 2)));
61 int error(const char *err
, ...) __attribute__((format (printf
, 1, 2)));
62 void warning(const char *err
, ...) __attribute__((format (printf
, 1, 2)));
64 void set_warning_routine(void (*routine
)(const char *err
, va_list params
));
66 int prefixcmp(const char *str
, const char *prefix
);
67 void set_buildid_dir(const char *dir
);
70 #if __GLIBC_PREREQ(2, 1)
71 #define HAVE_STRCHRNUL
75 #ifndef HAVE_STRCHRNUL
76 #define strchrnul gitstrchrnul
77 static inline char *gitstrchrnul(const char *s
, int c
)
85 static inline void *zalloc(size_t size
)
87 return calloc(1, size
);
90 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
92 int mkdir_p(char *path
, mode_t mode
);
93 int rm_rf(const char *path
);
94 struct strlist
*lsdir(const char *name
, bool (*filter
)(const char *, struct dirent
*));
95 bool lsdir_no_dot_filter(const char *name
, struct dirent
*d
);
96 int copyfile(const char *from
, const char *to
);
97 int copyfile_mode(const char *from
, const char *to
, mode_t mode
);
98 int copyfile_offset(int fromfd
, loff_t from_ofs
, int tofd
, loff_t to_ofs
, u64 size
);
100 unsigned long convert_unit(unsigned long value
, char *unit
);
101 ssize_t
readn(int fd
, void *buf
, size_t n
);
102 ssize_t
writen(int fd
, void *buf
, size_t n
);
104 struct perf_event_attr
;
106 void event_attr_init(struct perf_event_attr
*attr
);
108 size_t hex_width(u64 v
);
109 int hex2u64(const char *ptr
, u64
*val
);
111 void dump_stack(void);
112 void sighandler_dump_stack(int sig
);
114 extern unsigned int page_size
;
115 extern int cacheline_size
;
116 extern int sysctl_perf_event_max_stack
;
117 extern int sysctl_perf_event_max_contexts_per_stack
;
124 unsigned long parse_tag_value(const char *str
, struct parse_tag
*tags
);
126 static inline int path__join(char *bf
, size_t size
,
127 const char *path1
, const char *path2
)
129 return scnprintf(bf
, size
, "%s%s%s", path1
, path1
[0] ? "/" : "", path2
);
132 static inline int path__join3(char *bf
, size_t size
,
133 const char *path1
, const char *path2
,
136 return scnprintf(bf
, size
, "%s%s%s%s%s",
137 path1
, path1
[0] ? "/" : "",
138 path2
, path2
[0] ? "/" : "", path3
);
141 int perf_event_paranoid(void);
143 void mem_bswap_64(void *src
, int byte_size
);
144 void mem_bswap_32(void *src
, int byte_size
);
146 const char *get_filename_for_perf_kvm(void);
147 bool find_process(const char *name
);
149 #ifdef HAVE_ZLIB_SUPPORT
150 int gzip_decompress_to_file(const char *input
, int output_fd
);
153 #ifdef HAVE_LZMA_SUPPORT
154 int lzma_decompress_to_file(const char *input
, int output_fd
);
157 int get_stack_size(const char *str
, unsigned long *_size
);
159 int fetch_kernel_version(unsigned int *puint
,
160 char *str
, size_t str_sz
);
161 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
162 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
163 #define KVER_SUBLEVEL(x) ((x) & 0xff)
164 #define KVER_FMT "%d.%d.%d"
165 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
167 const char *perf_tip(const char *dirpath
);
168 bool is_regular_file(const char *file
);
169 int fetch_current_timestamp(char *buf
, size_t sz
);
171 #ifndef HAVE_SCHED_GETCPU_SUPPORT
172 int sched_getcpu(void);
175 int timestamp__scnprintf_usec(u64 timestamp
, char *buf
, size_t sz
);
177 int unit_number__scnprintf(char *buf
, size_t size
, u64 n
);
179 #endif /* GIT_COMPAT_UTIL_H */