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>
30 #include <sys/socket.h>
31 #include <sys/ioctl.h>
32 #include <linux/kernel.h>
33 #include <linux/types.h>
35 extern char buildid_dir[];
38 #define NORETURN __attribute__((__noreturn__))
42 #define __attribute__(x)
46 #define PERF_GTK_DSO "libperf-gtk.so"
48 /* General helper functions */
49 void usage(const char *err) NORETURN;
50 void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
51 int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
52 void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
54 void set_warning_routine(void (*routine)(const char *err, va_list params));
56 int prefixcmp(const char *str, const char *prefix);
57 void set_buildid_dir(const char *dir);
59 static inline void *zalloc(size_t size)
61 return calloc(1, size);
64 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
69 int mkdir_p(char *path, mode_t mode);
70 int rm_rf(const char *path);
71 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
72 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
73 int copyfile(const char *from, const char *to);
74 int copyfile_mode(const char *from, const char *to, mode_t mode);
75 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
77 unsigned long convert_unit(unsigned long value, char *unit);
78 ssize_t readn(int fd, void *buf, size_t n);
79 ssize_t writen(int fd, void *buf, size_t n);
81 struct perf_event_attr;
83 void event_attr_init(struct perf_event_attr *attr);
85 size_t hex_width(u64 v);
86 int hex2u64(const char *ptr, u64 *val);
88 void dump_stack(void);
89 void sighandler_dump_stack(int sig);
91 extern unsigned int page_size;
92 extern int cacheline_size;
93 extern int sysctl_perf_event_max_stack;
94 extern int sysctl_perf_event_max_contexts_per_stack;
101 unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
103 int perf_event_paranoid(void);
105 void mem_bswap_64(void *src, int byte_size);
106 void mem_bswap_32(void *src, int byte_size);
108 const char *get_filename_for_perf_kvm(void);
109 bool find_process(const char *name);
111 #ifdef HAVE_ZLIB_SUPPORT
112 int gzip_decompress_to_file(const char *input, int output_fd);
115 #ifdef HAVE_LZMA_SUPPORT
116 int lzma_decompress_to_file(const char *input, int output_fd);
119 int get_stack_size(const char *str, unsigned long *_size);
121 int fetch_kernel_version(unsigned int *puint,
122 char *str, size_t str_sz);
123 #define KVER_VERSION(x) (((x) >> 16) & 0xff)
124 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff)
125 #define KVER_SUBLEVEL(x) ((x) & 0xff)
126 #define KVER_FMT "%d.%d.%d"
127 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
129 const char *perf_tip(const char *dirpath);
130 int fetch_current_timestamp(char *buf, size_t sz);
132 #ifndef HAVE_SCHED_GETCPU_SUPPORT
133 int sched_getcpu(void);
136 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
138 int unit_number__scnprintf(char *buf, size_t size, u64 n);
140 #endif /* GIT_COMPAT_UTIL_H */