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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef GIT_COMPAT_UTIL_H
   3#define GIT_COMPAT_UTIL_H
   4
   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 <linux/compiler.h>
  13#include <sys/types.h>
  14
  15/* General helper functions */
  16void usage(const char *err) __noreturn;
  17void die(const char *err, ...) __noreturn __printf(1, 2);
  18
  19struct dirent;
  20struct strlist;
  21
  22int mkdir_p(char *path, mode_t mode);
  23int rm_rf(const char *path);
  24int rm_rf_perf_data(const char *path);
  25struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dirent *));
  26bool lsdir_no_dot_filter(const char *name, struct dirent *d);
  27
  28size_t hex_width(u64 v);
  29
  30int sysctl__max_stack(void);
  31
  32bool sysctl__nmi_watchdog_enabled(void);
  33
  34int fetch_kernel_version(unsigned int *puint,
  35                         char *str, size_t str_sz);
  36#define KVER_VERSION(x)         (((x) >> 16) & 0xff)
  37#define KVER_PATCHLEVEL(x)      (((x) >> 8) & 0xff)
  38#define KVER_SUBLEVEL(x)        ((x) & 0xff)
  39#define KVER_FMT        "%d.%d.%d"
  40#define KVER_PARAM(x)   KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
  41
  42const char *perf_tip(const char *dirpath);
  43
  44#ifndef HAVE_SCHED_GETCPU_SUPPORT
  45int sched_getcpu(void);
  46#endif
  47
  48extern bool perf_singlethreaded;
  49
  50void perf_set_singlethreaded(void);
  51void perf_set_multithreaded(void);
  52
  53char *perf_exe(char *buf, int len);
  54
  55#ifndef O_CLOEXEC
  56#ifdef __sparc__
  57#define O_CLOEXEC      0x400000
  58#elif defined(__alpha__) || defined(__hppa__)
  59#define O_CLOEXEC      010000000
  60#else
  61#define O_CLOEXEC      02000000
  62#endif
  63#endif
  64
  65extern bool test_attr__enabled;
  66void test_attr__ready(void);
  67void test_attr__init(void);
  68struct perf_event_attr;
  69void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
  70                     int fd, int group_fd, unsigned long flags);
  71#endif /* GIT_COMPAT_UTIL_H */
  72