1 #ifndef GIT_COMPAT_UTIL_H 2 #define GIT_COMPAT_UTIL_H 3 4 #define _ALL_SOURCE 1 5 #define _BSD_SOURCE 1 6 /* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */ 7 #define _DEFAULT_SOURCE 1 8 #define HAS_BOOL 9 10 #include <fcntl.h> 11 #include <stdbool.h> 12 #include <stddef.h> 13 #include <stdlib.h> 14 #include <stdarg.h> 15 #include <linux/types.h> 16 17 extern char buildid_dir[]; 18 19 #ifdef __GNUC__ 20 #define NORETURN __attribute__((__noreturn__)) 21 #else 22 #define NORETURN 23 #ifndef __attribute__ 24 #define __attribute__(x) 25 #endif 26 #endif 27 28 #define PERF_GTK_DSO "libperf-gtk.so" 29 30 /* General helper functions */ 31 void usage(const char *err) NORETURN; 32 void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); 33 int error(const char *err, ...) __attribute__((format (printf, 1, 2))); 34 void warning(const char *err, ...) __attribute__((format (printf, 1, 2))); 35 36 void set_warning_routine(void (*routine)(const char *err, va_list params)); 37 38 int prefixcmp(const char *str, const char *prefix); 39 void set_buildid_dir(const char *dir); 40 41 static inline void *zalloc(size_t size) 42 { 43 return calloc(1, size); 44 } 45 46 #define zfree(ptr) ({ free(*ptr); *ptr = NULL; }) 47 48 struct dirent; 49 struct strlist; 50 51 int mkdir_p(char *path, mode_t mode); 52 int rm_rf(const char *path); 53 struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *)); 54 bool lsdir_no_dot_filter(const char *name, struct dirent *d); 55 int copyfile(const char *from, const char *to); 56 int copyfile_mode(const char *from, const char *to, mode_t mode); 57 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size); 58 59 ssize_t readn(int fd, void *buf, size_t n); 60 ssize_t writen(int fd, void *buf, size_t n); 61 62 struct perf_event_attr; 63 64 void event_attr_init(struct perf_event_attr *attr); 65 66 size_t hex_width(u64 v); 67 int hex2u64(const char *ptr, u64 *val); 68 69 extern unsigned int page_size; 70 extern int cacheline_size; 71 extern int sysctl_perf_event_max_stack; 72 extern int sysctl_perf_event_max_contexts_per_stack; 73 74 struct parse_tag { 75 char tag; 76 int mult; 77 }; 78 79 unsigned long parse_tag_value(const char *str, struct parse_tag *tags); 80 81 int perf_event_paranoid(void); 82 83 void mem_bswap_64(void *src, int byte_size); 84 void mem_bswap_32(void *src, int byte_size); 85 86 bool find_process(const char *name); 87 88 int fetch_kernel_version(unsigned int *puint, 89 char *str, size_t str_sz); 90 #define KVER_VERSION(x) (((x) >> 16) & 0xff) 91 #define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff) 92 #define KVER_SUBLEVEL(x) ((x) & 0xff) 93 #define KVER_FMT "%d.%d.%d" 94 #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x) 95 96 const char *perf_tip(const char *dirpath); 97 98 #ifndef HAVE_SCHED_GETCPU_SUPPORT 99 int sched_getcpu(void); 100 #endif 101 102 #endif /* GIT_COMPAT_UTIL_H */ 103