LXR linux/tools/perf/util/util.h

   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
   9#include <fcntl.h>
  10#include <stdbool.h>
  11#include <stddef.h>
  12#include <stdlib.h>
  13#include <stdarg.h>
  14#include <linux/types.h>
  15
  16#ifdef __GNUC__
  17#define NORETURN __attribute__((__noreturn__))
  18#else
  19#define NORETURN
  20#ifndef __attribute__
  21#define __attribute__(x)
  22#endif
  23#endif
  24
  25/* General helper functions */
  26void usage(const char *err) NORETURN;
  27void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
  28int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
  29void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
  30
  31void set_warning_routine(void (*routine)(const char *err, va_list params));
  32
  33static inline void *zalloc(size_t size)
  34{
  35        return calloc(1, size);
  36}
  37
  38#define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
  39
  40struct dirent;
  41struct strlist;
  42
  43int mkdir_p(char *path, mode_t mode);
  44int rm_rf(const char *path);
  45struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
  46bool lsdir_no_dot_filter(const char *name, struct dirent *d);
  47int copyfile(const char *from, const char *to);
  48int copyfile_mode(const char *from, const char *to, mode_t mode);
  49int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
  50
  51ssize_t readn(int fd, void *buf, size_t n);
  52ssize_t writen(int fd, void *buf, size_t n);
  53
  54size_t hex_width(u64 v);
  55int hex2u64(const char *ptr, u64 *val);
  56
  57extern unsigned int page_size;
  58extern int cacheline_size;
  59
  60bool find_process(const char *name);
  61
  62int fetch_kernel_version(unsigned int *puint,
  63                         char *str, size_t str_sz);
  64#define KVER_VERSION(x)         (((x) >> 16) & 0xff)
  65#define KVER_PATCHLEVEL(x)      (((x) >> 8) & 0xff)
  66#define KVER_SUBLEVEL(x)        ((x) & 0xff)
  67#define KVER_FMT        "%d.%d.%d"
  68#define KVER_PARAM(x)   KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
  69
  70const char *perf_tip(const char *dirpath);
  71
  72#ifndef HAVE_SCHED_GETCPU_SUPPORT
  73int sched_getcpu(void);
  74#endif
  75
  76#endif /* GIT_COMPAT_UTIL_H */
  77