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