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>
21 #include <sys/param.h>
22 #include <sys/types.h>
32 #include <sys/socket.h>
33 #include <sys/ioctl.h>
34 #include <linux/kernel.h>
35 #include <linux/types.h>
37 extern char buildid_dir[];
40 #define NORETURN __attribute__((__noreturn__))
44 #define __attribute__(x)
48 #define PERF_GTK_DSO "libperf-gtk.so"
50 /* General helper functions */
51 void usage(const char *err) NORETURN;
52 void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
53 int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
54 void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
56 void set_warning_routine(void (*routine)(const char *err, va_list params));
58 int prefixcmp(const char *str, const char *prefix);
59 void set_buildid_dir(const char *dir);
62 #if __GLIBC_PREREQ(2, 1)
63 #define HAVE_STRCHRNUL
67 #ifndef HAVE_STRCHRNUL
68 #define strchrnul gitstrchrnul
69 static inline char *gitstrchrnul(const char *s, int c)
77 static inline void *zalloc(size_t size)
79 return calloc(1, size);
82 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
87 int mkdir_p(char *path, mode_t mode);
88 int rm_rf(const char *path);
89 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
90 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
91 int copyfile(const char *from, const char *to);
92 int copyfile_mode(const char *from, const char *to, mode_t mode);
93 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
95 unsigned long convert_unit(unsigned long value, char *unit);
96 ssize_t readn(int fd, void *buf, size_t n);
97 ssize_t writen(int fd, void *buf, size_t n);
99 struct perf_event_attr;
101 void event_attr_init(struct perf_event_attr *attr);
103 size_t hex_width(u64 v);
104 int hex2u64(const char *ptr, u64 *val);
106 void dump_stack(void);
107 void sighandler_dump_stack(int sig);
109 extern unsigned int page_size;
110 extern int cacheline_size;
111 extern int sysctl_perf_event_max_stack;
112 extern int sysctl_perf_event_max_contexts_per_stack;
119 unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
121 int perf_event_paranoid(void);
123 void mem_bswap_64(void *src, int byte_size);
124 void mem_bswap_32(void *src, int byte_size);
126 const char *get_filename_for_perf_kvm(void);
127 bool find_process(const char *name);
129 #ifdef HAVE_ZLIB_SUPPORT
130 int gzip_decompress_to_file(const char *input, int output_fd);
133 #ifdef HAVE_LZMA_SUPPORT
134 int lzma_decompress_to_file(const char *input, int output_fd);
137 int get_stack_size(const char *str, unsigned long *_size);
139 int fetch_kernel_version(unsigned int *puint,
140 char *str, size_t str_sz);
141 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
142 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
143 #define KVER_SUBLEVEL(x) ((x) & 0xff)
144 #define KVER_FMT "%d.%d.%d"
145 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
147 const char *perf_tip(const char *dirpath);
148 int fetch_current_timestamp(char *buf, size_t sz);
150 #ifndef HAVE_SCHED_GETCPU_SUPPORT
151 int sched_getcpu(void);
154 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
156 int unit_number__scnprintf(char *buf, size_t size, u64 n);
158 #endif /* GIT_COMPAT_UTIL_H */