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
 102 static inline int
 103 sys_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 */