tools/perf/perf.h

   1 #ifndef _PERF_PERF_H
   2 #define _PERF_PERF_H
   3
   4 #include <asm/unistd.h>
   5
   6 #if defined(__i386__)
   7 #define mb()            asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
   8 #define wmb()           asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
   9 #define rmb()           asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
  10 #define cpu_relax()     asm volatile("rep; nop" ::: "memory");
  11 #define CPUINFO_PROC    "model name"
  12 #ifndef __NR_perf_event_open
  13 # define __NR_perf_event_open 336
  14 #endif
  15 #ifndef __NR_futex
  16 # define __NR_futex 240
  17 #endif
  18 #endif
  19
  20 #if defined(__x86_64__)
  21 #define mb()            asm volatile("mfence" ::: "memory")
  22 #define wmb()           asm volatile("sfence" ::: "memory")
  23 #define rmb()           asm volatile("lfence" ::: "memory")
  24 #define cpu_relax()     asm volatile("rep; nop" ::: "memory");
  25 #define CPUINFO_PROC    "model name"
  26 #ifndef __NR_perf_event_open
  27 # define __NR_perf_event_open 298
  28 #endif
  29 #ifndef __NR_futex
  30 # define __NR_futex 202
  31 #endif
  32 #endif
  33
  34 #ifdef __powerpc__
  35 #include "../../arch/powerpc/include/uapi/asm/unistd.h"
  36 #define mb()            asm volatile ("sync" ::: "memory")
  37 #define wmb()           asm volatile ("sync" ::: "memory")
  38 #define rmb()           asm volatile ("sync" ::: "memory")
  39 #define CPUINFO_PROC    "cpu"
  40 #endif
  41
  42 #ifdef __s390__
  43 #define mb()            asm volatile("bcr 15,0" ::: "memory")
  44 #define wmb()           asm volatile("bcr 15,0" ::: "memory")
  45 #define rmb()           asm volatile("bcr 15,0" ::: "memory")
  46 #endif
  47
  48 #ifdef __sh__
  49 #if defined(__SH4A__) || defined(__SH5__)
  50 # define mb()           asm volatile("synco" ::: "memory")
  51 # define wmb()          asm volatile("synco" ::: "memory")
  52 # define rmb()          asm volatile("synco" ::: "memory")
  53 #else
  54 # define mb()           asm volatile("" ::: "memory")
  55 # define wmb()          asm volatile("" ::: "memory")
  56 # define rmb()          asm volatile("" ::: "memory")
  57 #endif
  58 #define CPUINFO_PROC    "cpu type"
  59 #endif
  60
  61 #ifdef __hppa__
  62 #define mb()            asm volatile("" ::: "memory")
  63 #define wmb()           asm volatile("" ::: "memory")
  64 #define rmb()           asm volatile("" ::: "memory")
  65 #define CPUINFO_PROC    "cpu"
  66 #endif
  67
  68 #ifdef __sparc__
  69 #ifdef __LP64__
  70 #define mb()            asm volatile("ba,pt %%xcc, 1f\n"        \
  71                                      "membar #StoreLoad\n"      \
  72                                      "1:\n":::"memory")
  73 #else
  74 #define mb()            asm volatile("":::"memory")
  75 #endif
  76 #define wmb()           asm volatile("":::"memory")
  77 #define rmb()           asm volatile("":::"memory")
  78 #define CPUINFO_PROC    "cpu"
  79 #endif
  80
  81 #ifdef __alpha__
  82 #define mb()            asm volatile("mb" ::: "memory")
  83 #define wmb()           asm volatile("wmb" ::: "memory")
  84 #define rmb()           asm volatile("mb" ::: "memory")
  85 #define CPUINFO_PROC    "cpu model"
  86 #endif
  87
  88 #ifdef __ia64__
  89 #define mb()            asm volatile ("mf" ::: "memory")
  90 #define wmb()           asm volatile ("mf" ::: "memory")
  91 #define rmb()           asm volatile ("mf" ::: "memory")
  92 #define cpu_relax()     asm volatile ("hint @pause" ::: "memory")
  93 #define CPUINFO_PROC    "model name"
  94 #endif
  95
  96 #ifdef __arm__
  97 /*
  98  * Use the __kuser_memory_barrier helper in the CPU helper page. See
  99  * arch/arm/kernel/entry-armv.S in the kernel source for details.
 100  */
 101 #define mb()            ((void(*)(void))0xffff0fa0)()
 102 #define wmb()           ((void(*)(void))0xffff0fa0)()
 103 #define rmb()           ((void(*)(void))0xffff0fa0)()
 104 #define CPUINFO_PROC    "Processor"
 105 #endif
 106
 107 #ifdef __aarch64__
 108 #define mb()            asm volatile("dmb ish" ::: "memory")
 109 #define wmb()           asm volatile("dmb ishst" ::: "memory")
 110 #define rmb()           asm volatile("dmb ishld" ::: "memory")
 111 #define cpu_relax()     asm volatile("yield" ::: "memory")
 112 #endif
 113
 114 #ifdef __mips__
 115 #define mb()            asm volatile(                                   \
 116                                 ".set   mips2\n\t"                      \
 117                                 "sync\n\t"                              \
 118                                 ".set   mips0"                          \
 119                                 : /* no output */                       \
 120                                 : /* no input */                        \
 121                                 : "memory")
 122 #define wmb()   mb()
 123 #define rmb()   mb()
 124 #define CPUINFO_PROC    "cpu model"
 125 #endif
 126
 127 #ifdef __arc__
 128 #define mb()            asm volatile("" ::: "memory")
 129 #define wmb()           asm volatile("" ::: "memory")
 130 #define rmb()           asm volatile("" ::: "memory")
 131 #define CPUINFO_PROC    "Processor"
 132 #endif
 133
 134 #ifdef __metag__
 135 #define mb()            asm volatile("" ::: "memory")
 136 #define wmb()           asm volatile("" ::: "memory")
 137 #define rmb()           asm volatile("" ::: "memory")
 138 #define CPUINFO_PROC    "CPU"
 139 #endif
 140
 141 #ifdef __xtensa__
 142 #define mb()            asm volatile("memw" ::: "memory")
 143 #define wmb()           asm volatile("memw" ::: "memory")
 144 #define rmb()           asm volatile("" ::: "memory")
 145 #define CPUINFO_PROC    "core ID"
 146 #endif
 147
 148 #ifdef __tile__
 149 #define mb()            asm volatile ("mf" ::: "memory")
 150 #define wmb()           asm volatile ("mf" ::: "memory")
 151 #define rmb()           asm volatile ("mf" ::: "memory")
 152 #define cpu_relax()     asm volatile ("mfspr zero, PASS" ::: "memory")
 153 #define CPUINFO_PROC    "model name"
 154 #endif
 155
 156 #define barrier() asm volatile ("" ::: "memory")
 157
 158 #ifndef cpu_relax
 159 #define cpu_relax() barrier()
 160 #endif
 161
 162 #define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
 163
 164
 165 #include <time.h>
 166 #include <unistd.h>
 167 #include <sys/types.h>
 168 #include <sys/syscall.h>
 169
 170 #include <linux/perf_event.h>
 171 #include "util/types.h"
 172 #include <stdbool.h>
 173
 174 /*
 175  * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
 176  * counters in the current task.
 177  */
 178 #define PR_TASK_PERF_EVENTS_DISABLE   31
 179 #define PR_TASK_PERF_EVENTS_ENABLE    32
 180
 181 #ifndef NSEC_PER_SEC
 182 # define NSEC_PER_SEC                   1000000000ULL
 183 #endif
 184 #ifndef NSEC_PER_USEC
 185 # define NSEC_PER_USEC                  1000ULL
 186 #endif
 187
 188 static inline unsigned long long rdclock(void)
 189 {
 190         struct timespec ts;
 191
 192         clock_gettime(CLOCK_MONOTONIC, &ts);
 193         return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
 194 }
 195
 196 /*
 197  * Pick up some kernel type conventions:
 198  */
 199 #define __user
 200 #define asmlinkage
 201
 202 #define unlikely(x)     __builtin_expect(!!(x), 0)
 203 #define min(x, y) ({                            \
 204         typeof(x) _min1 = (x);                  \
 205         typeof(y) _min2 = (y);                  \
 206         (void) (&_min1 == &_min2);              \
 207         _min1 < _min2 ? _min1 : _min2; })
 208
 209 extern bool test_attr__enabled;
 210 void test_attr__init(void);
 211 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
 212                      int fd, int group_fd, unsigned long flags);
 213
 214 static inline int
 215 sys_perf_event_open(struct perf_event_attr *attr,
 216                       pid_t pid, int cpu, int group_fd,
 217                       unsigned long flags)
 218 {
 219         int fd;
 220
 221         fd = syscall(__NR_perf_event_open, attr, pid, cpu,
 222                      group_fd, flags);
 223
 224         if (unlikely(test_attr__enabled))
 225                 test_attr__open(attr, pid, cpu, fd, group_fd, flags);
 226
 227         return fd;
 228 }
 229
 230 #define MAX_COUNTERS                    256
 231 #define MAX_NR_CPUS                     256
 232
 233 struct ip_callchain {
 234         u64 nr;
 235         u64 ips[0];
 236 };
 237
 238 struct branch_flags {
 239         u64 mispred:1;
 240         u64 predicted:1;
 241         u64 in_tx:1;
 242         u64 abort:1;
 243         u64 reserved:60;
 244 };
 245
 246 struct branch_entry {
 247         u64                             from;
 248         u64                             to;
 249         struct branch_flags flags;
 250 };
 251
 252 struct branch_stack {
 253         u64                             nr;
 254         struct branch_entry     entries[0];
 255 };
 256
 257 extern const char *input_name;
 258 extern bool perf_host, perf_guest;
 259 extern const char perf_version_string[];
 260
 261 void pthread__unblock_sigwinch(void);
 262
 263 #include "util/target.h"
 264
 265 enum perf_call_graph_mode {
 266         CALLCHAIN_NONE,
 267         CALLCHAIN_FP,
 268         CALLCHAIN_DWARF,
 269         CALLCHAIN_MAX
 270 };
 271
 272 struct record_opts {
 273         struct target target;
 274         int          call_graph;
 275         bool         call_graph_enabled;
 276         bool         group;
 277         bool         inherit_stat;
 278         bool         no_buffering;
 279         bool         no_inherit;
 280         bool         no_inherit_set;
 281         bool         no_samples;
 282         bool         raw_samples;
 283         bool         sample_address;
 284         bool         sample_weight;
 285         bool         sample_time;
 286         bool         period;
 287         unsigned int freq;
 288         unsigned int mmap_pages;
 289         unsigned int user_freq;
 290         u64          branch_stack;
 291         u64          default_interval;
 292         u64          user_interval;
 293         u16          stack_dump_size;
 294         bool         sample_transaction;
 295         unsigned     initial_delay;
 296 };
 297
 298 #endif