#ifndef _PERF_PERF_H #define _PERF_PERF_H #if defined(__x86_64__) || defined(__i386__) #include "../../arch/x86/include/asm/unistd.h" #define rmb() asm volatile("lfence" ::: "memory") #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #endif #ifdef __powerpc__ #include "../../arch/powerpc/include/asm/unistd.h" #define rmb() asm volatile ("sync" ::: "memory") #define cpu_relax() asm volatile ("" ::: "memory"); #endif #include <time.h> #include <unistd.h> #include <sys/types.h> #include <sys/syscall.h> #include "../../include/linux/perf_counter.h" /* * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all * counters in the current task. */ #define PR_TASK_PERF_COUNTERS_DISABLE 31 #define PR_TASK_PERF_COUNTERS_ENABLE 32 #ifndef NSEC_PER_SEC # define NSEC_PER_SEC 1000000000ULL #endif static inline unsigned long long rdclock(void) { struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); return ts.tv_sec * 1000000000ULL + ts.tv_nsec; } /* * Pick up some kernel type conventions: */ #define __user #define asmlinkage #define unlikely(x) __builtin_expect(!!(x), 0) #define min(x, y) ({ \ typeof(x) _min1 = (x); \ typeof(y) _min2 = (y); \ (void) (&_min1 == &_min2); \ _min1 < _min2 ? _min1 : _min2; }) static inline int sys_perf_counter_open(struct perf_counter_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags) { attr->size = sizeof(*attr); return syscall(__NR_perf_counter_open, attr, pid, cpu, group_fd, flags); } #define MAX_COUNTERS 256 #define MAX_NR_CPUS 256 struct perf_file_header { __u64 version; __u64 sample_type; __u64 data_size; }; #endif