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>
23 #include <sys/param.h>
24 #include <sys/types.h>
35 #include <sys/socket.h>
36 #include <sys/ioctl.h>
37 #include <linux/kernel.h>
38 #include <linux/types.h>
39 #include <sys/ttydefaults.h>
40 #include <api/fs/tracing_path.h>
42 #include <linux/bitops.h>
46 extern char buildid_dir[];
49 #define NORETURN __attribute__((__noreturn__))
53 #define __attribute__(x)
57 #define PERF_GTK_DSO "libperf-gtk.so"
59 /* General helper functions */
60 void usage(const char *err) NORETURN;
61 void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
62 int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
63 void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
65 void set_warning_routine(void (*routine)(const char *err, va_list params));
67 int prefixcmp(const char *str, const char *prefix);
68 void set_buildid_dir(const char *dir);
71 #if __GLIBC_PREREQ(2, 1)
72 #define HAVE_STRCHRNUL
76 #ifndef HAVE_STRCHRNUL
77 #define strchrnul gitstrchrnul
78 static inline char *gitstrchrnul(const char *s, int c)
86 static inline void *zalloc(size_t size)
88 return calloc(1, size);
91 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
93 int mkdir_p(char *path, mode_t mode);
94 int rm_rf(const char *path);
95 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
96 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
97 int copyfile(const char *from, const char *to);
98 int copyfile_mode(const char *from, const char *to, mode_t mode);
99 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
101 unsigned long convert_unit(unsigned long value, char *unit);
102 ssize_t readn(int fd, void *buf, size_t n);
103 ssize_t writen(int fd, void *buf, size_t n);
105 struct perf_event_attr;
107 void event_attr_init(struct perf_event_attr *attr);
109 size_t hex_width(u64 v);
110 int hex2u64(const char *ptr, u64 *val);
112 void dump_stack(void);
113 void sighandler_dump_stack(int sig);
115 extern unsigned int page_size;
116 extern int cacheline_size;
117 extern int sysctl_perf_event_max_stack;
118 extern int sysctl_perf_event_max_contexts_per_stack;
125 unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
127 static inline int path__join(char *bf, size_t size,
128 const char *path1, const char *path2)
130 return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2);
133 static inline int path__join3(char *bf, size_t size,
134 const char *path1, const char *path2,
137 return scnprintf(bf, size, "%s%s%s%s%s",
138 path1, path1[0] ? "/" : "",
139 path2, path2[0] ? "/" : "", path3);
142 int perf_event_paranoid(void);
144 void mem_bswap_64(void *src, int byte_size);
145 void mem_bswap_32(void *src, int byte_size);
147 const char *get_filename_for_perf_kvm(void);
148 bool find_process(const char *name);
150 #ifdef HAVE_ZLIB_SUPPORT
151 int gzip_decompress_to_file(const char *input, int output_fd);
154 #ifdef HAVE_LZMA_SUPPORT
155 int lzma_decompress_to_file(const char *input, int output_fd);
158 int get_stack_size(const char *str, unsigned long *_size);
160 int fetch_kernel_version(unsigned int *puint,
161 char *str, size_t str_sz);
162 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
163 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
164 #define KVER_SUBLEVEL(x) ((x) & 0xff)
165 #define KVER_FMT "%d.%d.%d"
166 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
168 const char *perf_tip(const char *dirpath);
169 bool is_regular_file(const char *file);
170 int fetch_current_timestamp(char *buf, size_t sz);
172 #ifndef HAVE_SCHED_GETCPU_SUPPORT
173 int sched_getcpu(void);
176 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
178 int unit_number__scnprintf(char *buf, size_t size, u64 n);
180 #endif /* GIT_COMPAT_UTIL_H */