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"
98 #define rmb() asm volatile("" ::: "memory")
99 #define cpu_relax() rmb()
100 #define CPUINFO_PROC "Processor"
105 #include <sys/types.h>
106 #include <sys/syscall.h>
108 #include <linux/perf_event.h>
109 #include "util/types.h"
113 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
114 * counters in the current task.
116 #define PR_TASK_PERF_EVENTS_DISABLE 31
117 #define PR_TASK_PERF_EVENTS_ENABLE 32
120 # define NSEC_PER_SEC 1000000000ULL
123 static inline unsigned long long rdclock(void)
127 clock_gettime(CLOCK_MONOTONIC, &ts);
128 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
132 * Pick up some kernel type conventions:
137 #define unlikely(x) __builtin_expect(!!(x), 0)
138 #define min(x, y) ({ \
139 typeof(x) _min1 = (x); \
140 typeof(y) _min2 = (y); \
141 (void) (&_min1 == &_min2); \
142 _min1 < _min2 ? _min1 : _min2; })
144 extern bool test_attr__enabled;
145 void test_attr__init(void);
146 void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
147 int fd, int group_fd, unsigned long flags);
150 sys_perf_event_open(struct perf_event_attr *attr,
151 pid_t pid, int cpu, int group_fd,
156 fd = syscall(__NR_perf_event_open, attr, pid, cpu,
159 if (unlikely(test_attr__enabled))
160 test_attr__open(attr, pid, cpu, fd, group_fd, flags);
165 #define MAX_COUNTERS 256
166 #define MAX_NR_CPUS 256
168 struct ip_callchain {
173 struct branch_flags {
179 struct branch_entry {
182 struct branch_flags flags;
185 struct branch_stack {
187 struct branch_entry entries[0];
190 extern const char *input_name;
191 extern bool perf_host, perf_guest;
192 extern const char perf_version_string[];
194 void pthread__unblock_sigwinch(void);
196 #include "util/target.h"
198 enum perf_call_graph_mode {
204 struct perf_record_opts {
205 struct perf_target target;
218 unsigned int mmap_pages;
219 unsigned int user_freq;
221 u64 default_interval;