1 #ifndef _PERF_PERF_H 2 #define _PERF_PERF_H 3 4 struct winsize; 5 6 void get_term_dimensions(struct winsize *ws); 7 8 #if defined(__i386__) 9 #include "../../arch/x86/include/asm/unistd.h" 10 #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") 11 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 12 #define CPUINFO_PROC "model name" 13 #ifndef __NR_perf_event_open 14 # define __NR_perf_event_open 336 15 #endif 16 #endif 17 18 #if defined(__x86_64__) 19 #include "../../arch/x86/include/asm/unistd.h" 20 #define rmb() asm volatile("lfence" ::: "memory") 21 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 22 #define CPUINFO_PROC "model name" 23 #ifndef __NR_perf_event_open 24 # define __NR_perf_event_open 298 25 #endif 26 #endif 27 28 #ifdef __powerpc__ 29 #include "../../arch/powerpc/include/asm/unistd.h" 30 #define rmb() asm volatile ("sync" ::: "memory") 31 #define cpu_relax() asm volatile ("" ::: "memory"); 32 #define CPUINFO_PROC "cpu" 33 #endif 34 35 #ifdef __s390__ 36 #include "../../arch/s390/include/asm/unistd.h" 37 #define rmb() asm volatile("bcr 15,0" ::: "memory") 38 #define cpu_relax() asm volatile("" ::: "memory"); 39 #endif 40 41 #ifdef __sh__ 42 #include "../../arch/sh/include/asm/unistd.h" 43 #if defined(__SH4A__) || defined(__SH5__) 44 # define rmb() asm volatile("synco" ::: "memory") 45 #else 46 # define rmb() asm volatile("" ::: "memory") 47 #endif 48 #define cpu_relax() asm volatile("" ::: "memory") 49 #define CPUINFO_PROC "cpu type" 50 #endif 51 52 #ifdef __hppa__ 53 #include "../../arch/parisc/include/asm/unistd.h" 54 #define rmb() asm volatile("" ::: "memory") 55 #define cpu_relax() asm volatile("" ::: "memory"); 56 #define CPUINFO_PROC "cpu" 57 #endif 58 59 #ifdef __sparc__ 60 #include "../../arch/sparc/include/uapi/asm/unistd.h" 61 #define rmb() asm volatile("":::"memory") 62 #define cpu_relax() asm volatile("":::"memory") 63 #define CPUINFO_PROC "cpu" 64 #endif 65 66 #ifdef __alpha__ 67 #include "../../arch/alpha/include/asm/unistd.h" 68 #define rmb() asm volatile("mb" ::: "memory") 69 #define cpu_relax() asm volatile("" ::: "memory") 70 #define CPUINFO_PROC "cpu model" 71 #endif 72 73 #ifdef __ia64__ 74 #include "../../arch/ia64/include/asm/unistd.h" 75 #define rmb() asm volatile ("mf" ::: "memory") 76 #define cpu_relax() asm volatile ("hint @pause" ::: "memory") 77 #define CPUINFO_PROC "model name" 78 #endif 79 80 #ifdef __arm__ 81 #include "../../arch/arm/include/asm/unistd.h" 82 /* 83 * Use the __kuser_memory_barrier helper in the CPU helper page. See 84 * arch/arm/kernel/entry-armv.S in the kernel source for details. 85 */ 86 #define rmb() ((void(*)(void))0xffff0fa0)() 87 #define cpu_relax() asm volatile("":::"memory") 88 #define CPUINFO_PROC "Processor" 89 #endif 90 91 #ifdef __aarch64__ 92 #include "../../arch/arm64/include/asm/unistd.h" 93 #define rmb() asm volatile("dmb ld" ::: "memory") 94 #define cpu_relax() asm volatile("yield" ::: "memory") 95 #endif 96 97 #ifdef __mips__ 98 #include "../../arch/mips/include/asm/unistd.h" 99 #define rmb() asm volatile( \ 100 ".set mips2\n\t" \ 101 "sync\n\t" \ 102 ".set mips0" \ 103 : /* no output */ \ 104 : /* no input */ \ 105 : "memory") 106 #define cpu_relax() asm volatile("" ::: "memory") 107 #define CPUINFO_PROC "cpu model" 108 #endif 109 110 #include <time.h> 111 #include <unistd.h> 112 #include <sys/types.h> 113 #include <sys/syscall.h> 114 115 #include "../../include/uapi/linux/perf_event.h" 116 #include "util/types.h" 117 #include <stdbool.h> 118 119 struct perf_mmap { 120 void *base; 121 int mask; 122 unsigned int prev; 123 }; 124 125 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) 126 { 127 struct perf_event_mmap_page *pc = mm->base; 128 int head = pc->data_head; 129 rmb(); 130 return head; 131 } 132 133 static inline void perf_mmap__write_tail(struct perf_mmap *md, 134 unsigned long tail) 135 { 136 struct perf_event_mmap_page *pc = md->base; 137 138 /* 139 * ensure all reads are done before we write the tail out. 140 */ 141 /* mb(); */ 142 pc->data_tail = tail; 143 } 144 145 /* 146 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all 147 * counters in the current task. 148 */ 149 #define PR_TASK_PERF_EVENTS_DISABLE 31 150 #define PR_TASK_PERF_EVENTS_ENABLE 32 151 152 #ifndef NSEC_PER_SEC 153 # define NSEC_PER_SEC 1000000000ULL 154 #endif 155 156 static inline unsigned long long rdclock(void) 157 { 158 struct timespec ts; 159 160 clock_gettime(CLOCK_MONOTONIC, &ts); 161 return ts.tv_sec * 1000000000ULL + ts.tv_nsec; 162 } 163 164 /* 165 * Pick up some kernel type conventions: 166 */ 167 #define __user 168 #define asmlinkage 169 170 #define unlikely(x) __builtin_expect(!!(x), 0) 171 #define min(x, y) ({ \ 172 typeof(x) _min1 = (x); \ 173 typeof(y) _min2 = (y); \ 174 (void) (&_min1 == &_min2); \ 175 _min1 < _min2 ? _min1 : _min2; }) 176 177 static inline int 178 sys_perf_event_open(struct perf_event_attr *attr, 179 pid_t pid, int cpu, int group_fd, 180 unsigned long flags) 181 { 182 return syscall(__NR_perf_event_open, attr, pid, cpu, 183 group_fd, flags); 184 } 185 186 #define MAX_COUNTERS 256 187 #define MAX_NR_CPUS 256 188 189 struct ip_callchain { 190 u64 nr; 191 u64 ips[0]; 192 }; 193 194 struct branch_flags { 195 u64 mispred:1; 196 u64 predicted:1; 197 u64 reserved:62; 198 }; 199 200 struct branch_entry { 201 u64 from; 202 u64 to; 203 struct branch_flags flags; 204 }; 205 206 struct branch_stack { 207 u64 nr; 208 struct branch_entry entries[0]; 209 }; 210 211 extern bool perf_host, perf_guest; 212 extern const char perf_version_string[]; 213 214 void pthread__unblock_sigwinch(void); 215 216 #include "util/target.h" 217 218 enum perf_call_graph_mode { 219 CALLCHAIN_NONE, 220 CALLCHAIN_FP, 221 CALLCHAIN_DWARF 222 }; 223 224 struct perf_record_opts { 225 struct perf_target target; 226 int call_graph; 227 bool group; 228 bool inherit_stat; 229 bool no_delay; 230 bool no_inherit; 231 bool no_samples; 232 bool pipe_output; 233 bool raw_samples; 234 bool sample_address; 235 bool sample_time; 236 bool sample_id_all_missing; 237 bool exclude_guest_missing; 238 bool period; 239 unsigned int freq; 240 unsigned int mmap_pages; 241 unsigned int user_freq; 242 u64 branch_stack; 243 u64 default_interval; 244 u64 user_interval; 245 u16 stack_dump_size; 246 }; 247 248 #endif 249