5 #include "../../arch/x86/include/asm/unistd.h"
6 #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
7 #define cpu_relax() asm volatile("rep; nop" ::: "memory");
10 #if defined(__x86_64__)
11 #include "../../arch/x86/include/asm/unistd.h"
12 #define rmb() asm volatile("lfence" ::: "memory")
13 #define cpu_relax() asm volatile("rep; nop" ::: "memory");
17 #include "../../arch/powerpc/include/asm/unistd.h"
18 #define rmb() asm volatile ("sync" ::: "memory")
19 #define cpu_relax() asm volatile ("" ::: "memory");
23 #include "../../arch/s390/include/asm/unistd.h"
24 #define rmb() asm volatile("bcr 15,0" ::: "memory")
25 #define cpu_relax() asm volatile("" ::: "memory");
29 #include "../../arch/sh/include/asm/unistd.h"
30 #if defined(__SH4A__) || defined(__SH5__)
31 # define rmb() asm volatile("synco" ::: "memory")
33 # define rmb() asm volatile("" ::: "memory")
35 #define cpu_relax() asm volatile("" ::: "memory")
39 #include "../../arch/parisc/include/asm/unistd.h"
40 #define rmb() asm volatile("" ::: "memory")
41 #define cpu_relax() asm volatile("" ::: "memory");
45 #include "../../arch/sparc/include/asm/unistd.h"
46 #define rmb() asm volatile("":::"memory")
47 #define cpu_relax() asm volatile("":::"memory")
51 #include "../../arch/alpha/include/asm/unistd.h"
52 #define rmb() asm volatile("mb" ::: "memory")
53 #define cpu_relax() asm volatile("" ::: "memory")
57 #include "../../arch/ia64/include/asm/unistd.h"
58 #define rmb() asm volatile ("mf" ::: "memory")
59 #define cpu_relax() asm volatile ("hint @pause" ::: "memory")
63 #include "../../arch/arm/include/asm/unistd.h"
65 * Use the __kuser_memory_barrier helper in the CPU helper page. See
66 * arch/arm/kernel/entry-armv.S in the kernel source for details.
68 #define rmb() ((void(*)(void))0xffff0fa0)()
69 #define cpu_relax() asm volatile("":::"memory")
74 #include <sys/types.h>
75 #include <sys/syscall.h>
77 #include "../../include/linux/perf_event.h"
78 #include "util/types.h"
81 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
82 * counters in the current task.
84 #define PR_TASK_PERF_EVENTS_DISABLE 31
85 #define PR_TASK_PERF_EVENTS_ENABLE 32
88 # define NSEC_PER_SEC 1000000000ULL
91 static inline unsigned long long rdclock(void)
95 clock_gettime(CLOCK_MONOTONIC, &ts);
96 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
100 * Pick up some kernel type conventions:
105 #define __used __attribute__((__unused__))
107 #define unlikely(x) __builtin_expect(!!(x), 0)
108 #define min(x, y) ({ \
109 typeof(x) _min1 = (x); \
110 typeof(y) _min2 = (y); \
111 (void) (&_min1 == &_min2); \
112 _min1 < _min2 ? _min1 : _min2; })
115 sys_perf_event_open(struct perf_event_attr *attr,
116 pid_t pid, int cpu, int group_fd,
119 attr->size = sizeof(*attr);
120 return syscall(__NR_perf_event_open, attr, pid, cpu,
124 #define MAX_COUNTERS 256
125 #define MAX_NR_CPUS 256
127 struct ip_callchain {