LXR linux/tools/perf/perf-sys.h

   1#ifndef _PERF_SYS_H
   2#define _PERF_SYS_H
   3
   4#include <unistd.h>
   5#include <sys/types.h>
   6#include <sys/syscall.h>
   7#include <linux/types.h>
   8#include <linux/perf_event.h>
   9#include <asm/barrier.h>
  10
  11#if defined(__i386__)
  12#define cpu_relax()     asm volatile("rep; nop" ::: "memory");
  13#define CPUINFO_PROC    {"model name"}
  14#ifndef __NR_perf_event_open
  15# define __NR_perf_event_open 336
  16#endif
  17#ifndef __NR_futex
  18# define __NR_futex 240
  19#endif
  20#ifndef __NR_gettid
  21# define __NR_gettid 224
  22#endif
  23#endif
  24
  25#if defined(__x86_64__)
  26#define cpu_relax()     asm volatile("rep; nop" ::: "memory");
  27#define CPUINFO_PROC    {"model name"}
  28#ifndef __NR_perf_event_open
  29# define __NR_perf_event_open 298
  30#endif
  31#ifndef __NR_futex
  32# define __NR_futex 202
  33#endif
  34#ifndef __NR_gettid
  35# define __NR_gettid 186
  36#endif
  37#endif
  38
  39#ifdef __powerpc__
  40#include "../../arch/powerpc/include/uapi/asm/unistd.h"
  41#define CPUINFO_PROC    {"cpu"}
  42#endif
  43
  44#ifdef __s390__
  45#define CPUINFO_PROC    {"vendor_id"}
  46#endif
  47
  48#ifdef __sh__
  49#define CPUINFO_PROC    {"cpu type"}
  50#endif
  51
  52#ifdef __hppa__
  53#define CPUINFO_PROC    {"cpu"}
  54#endif
  55
  56#ifdef __sparc__
  57#define CPUINFO_PROC    {"cpu"}
  58#endif
  59
  60#ifdef __alpha__
  61#define CPUINFO_PROC    {"cpu model"}
  62#endif
  63
  64#ifdef __ia64__
  65#define cpu_relax()     asm volatile ("hint @pause" ::: "memory")
  66#define CPUINFO_PROC    {"model name"}
  67#endif
  68
  69#ifdef __arm__
  70#define CPUINFO_PROC    {"model name", "Processor"}
  71#endif
  72
  73#ifdef __aarch64__
  74#define cpu_relax()     asm volatile("yield" ::: "memory")
  75#endif
  76
  77#ifdef __mips__
  78#define CPUINFO_PROC    {"cpu model"}
  79#endif
  80
  81#ifdef __arc__
  82#define CPUINFO_PROC    {"Processor"}
  83#endif
  84
  85#ifdef __metag__
  86#define CPUINFO_PROC    {"CPU"}
  87#endif
  88
  89#ifdef __xtensa__
  90#define CPUINFO_PROC    {"core ID"}
  91#endif
  92
  93#ifdef __tile__
  94#define cpu_relax()     asm volatile ("mfspr zero, PASS" ::: "memory")
  95#define CPUINFO_PROC    {"model name"}
  96#endif
  97
  98#ifndef cpu_relax
  99#define cpu_relax() barrier()
 100#endif
 101
 102static inline int
 103sys_perf_event_open(struct perf_event_attr *attr,
 104                      pid_t pid, int cpu, int group_fd,
 105                      unsigned long flags)
 106{
 107        int fd;
 108
 109        fd = syscall(__NR_perf_event_open, attr, pid, cpu,
 110                     group_fd, flags);
 111
 112#ifdef HAVE_ATTR_TEST
 113        if (unlikely(test_attr__enabled))
 114                test_attr__open(attr, pid, cpu, fd, group_fd, flags);
 115#endif
 116        return fd;
 117}
 118
 119#endif /* _PERF_SYS_H */
 120