4 #include <asm/unistd.h>
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
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
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"
32 #define rmb() asm volatile("bcr 15,0" ::: "memory")
33 #define cpu_relax() asm volatile("" ::: "memory");
37 #if defined(__SH4A__) || defined(__SH5__)
38 # define rmb() asm volatile("synco" ::: "memory")
40 # define rmb() asm volatile("" ::: "memory")
42 #define cpu_relax() asm volatile("" ::: "memory")
43 #define CPUINFO_PROC "cpu type"
47 #define rmb() asm volatile("" ::: "memory")
48 #define cpu_relax() asm volatile("" ::: "memory");
49 #define CPUINFO_PROC "cpu"
53 #define rmb() asm volatile("":::"memory")
54 #define cpu_relax() asm volatile("":::"memory")
55 #define CPUINFO_PROC "cpu"
59 #define rmb() asm volatile("mb" ::: "memory")
60 #define cpu_relax() asm volatile("" ::: "memory")
61 #define CPUINFO_PROC "cpu model"
65 #define rmb() asm volatile ("mf" ::: "memory")
66 #define cpu_relax() asm volatile ("hint @pause" ::: "memory")
67 #define CPUINFO_PROC "model name"
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.
75 #define rmb() ((void(*)(void))0xffff0fa0)()
76 #define cpu_relax() asm volatile("":::"memory")
77 #define CPUINFO_PROC "Processor"
81 #define rmb() asm volatile("dmb ld" ::: "memory")
82 #define cpu_relax() asm volatile("yield" ::: "memory")
86 #define rmb() asm volatile( \
93 #define cpu_relax() asm volatile("" ::: "memory")
94 #define CPUINFO_PROC "cpu model"
99 #include <sys/types.h>
100 #include <sys/syscall.h>
102 #include <linux/perf_event.h>
103 #include "util/types.h"
107 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
108 * counters in the current task.
110 #define PR_TASK_PERF_EVENTS_DISABLE 31
111 #define PR_TASK_PERF_EVENTS_ENABLE 32
114 # define NSEC_PER_SEC 1000000000ULL
117 static inline unsigned long long rdclock(void)
121 clock_gettime(CLOCK_MONOTONIC, &ts);
122 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
126 * Pick up some kernel type conventions:
131 #define unlikely(x) __builtin_expect(!!(x), 0)
132 #define min(x, y) ({ \
133 typeof(x) _min1 = (x); \
134 typeof(y) _min2 = (y); \
135 (void) (&_min1 == &_min2); \
136 _min1 < _min2 ? _min1 : _min2; })
138 extern bool test_attr__enabled;
139 void test_attr__init(void);
140 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
141 int fd, int group_fd, unsigned long flags);
144 sys_perf_event_open(struct perf_event_attr *attr,
145 pid_t pid, int cpu, int group_fd,
150 fd = syscall(__NR_perf_event_open, attr, pid, cpu,
153 if (unlikely(test_attr__enabled))
154 test_attr__open(attr, pid, cpu, fd, group_fd, flags);
159 #define MAX_COUNTERS 256
160 #define MAX_NR_CPUS 256
162 struct ip_callchain {
167 struct branch_flags {
173 struct branch_entry {
176 struct branch_flags flags;
179 struct branch_stack {
181 struct branch_entry entries[0];
184 extern const char *input_name;
185 extern bool perf_host, perf_guest;
186 extern const char perf_version_string[];
188 void pthread__unblock_sigwinch(void);
190 #include "util/target.h"
192 enum perf_call_graph_mode {
198 struct perf_record_opts {
199 struct perf_target target;
212 unsigned int mmap_pages;
213 unsigned int user_freq;
215 u64 default_interval;