Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _PERF_PERF_H
2#define _PERF_PERF_H
3
4#include <asm/unistd.h>
5
6#if defined(__i386__)
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
12#endif
13#endif
14
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
21#endif
22#endif
23
24#ifdef __powerpc__
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"
29#endif
30
31#ifdef __s390__
32#define rmb() asm volatile("bcr 15,0" ::: "memory")
33#define cpu_relax() asm volatile("" ::: "memory");
34#endif
35
36#ifdef __sh__
37#if defined(__SH4A__) || defined(__SH5__)
38# define rmb() asm volatile("synco" ::: "memory")
39#else
40# define rmb() asm volatile("" ::: "memory")
41#endif
42#define cpu_relax() asm volatile("" ::: "memory")
43#define CPUINFO_PROC "cpu type"
44#endif
45
46#ifdef __hppa__
47#define rmb() asm volatile("" ::: "memory")
48#define cpu_relax() asm volatile("" ::: "memory");
49#define CPUINFO_PROC "cpu"
50#endif
51
52#ifdef __sparc__
53#define rmb() asm volatile("":::"memory")
54#define cpu_relax() asm volatile("":::"memory")
55#define CPUINFO_PROC "cpu"
56#endif
57
58#ifdef __alpha__
59#define rmb() asm volatile("mb" ::: "memory")
60#define cpu_relax() asm volatile("" ::: "memory")
61#define CPUINFO_PROC "cpu model"
62#endif
63
64#ifdef __ia64__
65#define rmb() asm volatile ("mf" ::: "memory")
66#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
67#define CPUINFO_PROC "model name"
68#endif
69
70#ifdef __arm__
71/*
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.
74 */
75#define rmb() ((void(*)(void))0xffff0fa0)()
76#define cpu_relax() asm volatile("":::"memory")
77#define CPUINFO_PROC "Processor"
78#endif
79
80#ifdef __aarch64__
81#define rmb() asm volatile("dmb ld" ::: "memory")
82#define cpu_relax() asm volatile("yield" ::: "memory")
83#endif
84
85#ifdef __mips__
86#define rmb() asm volatile( \
87 ".set mips2\n\t" \
88 "sync\n\t" \
89 ".set mips0" \
90 : /* no output */ \
91 : /* no input */ \
92 : "memory")
93#define cpu_relax() asm volatile("" ::: "memory")
94#define CPUINFO_PROC "cpu model"
95#endif
96
97#ifdef __arc__
98#define rmb() asm volatile("" ::: "memory")
99#define cpu_relax() rmb()
100#define CPUINFO_PROC "Processor"
101#endif
102
103#ifdef __metag__
104#define rmb() asm volatile("" ::: "memory")
105#define cpu_relax() asm volatile("" ::: "memory")
106#define CPUINFO_PROC "CPU"
107#endif
108
109#include <time.h>
110#include <unistd.h>
111#include <sys/types.h>
112#include <sys/syscall.h>
113
114#include <linux/perf_event.h>
115#include "util/types.h"
116#include <stdbool.h>
117
118/*
119 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
120 * counters in the current task.
121 */
122#define PR_TASK_PERF_EVENTS_DISABLE 31
123#define PR_TASK_PERF_EVENTS_ENABLE 32
124
125#ifndef NSEC_PER_SEC
126# define NSEC_PER_SEC 1000000000ULL
127#endif
128
129static inline unsigned long long rdclock(void)
130{
131 struct timespec ts;
132
133 clock_gettime(CLOCK_MONOTONIC, &ts);
134 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
135}
136
137/*
138 * Pick up some kernel type conventions:
139 */
140#define __user
141#define asmlinkage
142
143#define unlikely(x) __builtin_expect(!!(x), 0)
144#define min(x, y) ({ \
145 typeof(x) _min1 = (x); \
146 typeof(y) _min2 = (y); \
147 (void) (&_min1 == &_min2); \
148 _min1 < _min2 ? _min1 : _min2; })
149
150extern bool test_attr__enabled;
151void test_attr__init(void);
152void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
153 int fd, int group_fd, unsigned long flags);
154
155static inline int
156sys_perf_event_open(struct perf_event_attr *attr,
157 pid_t pid, int cpu, int group_fd,
158 unsigned long flags)
159{
160 int fd;
161
162 fd = syscall(__NR_perf_event_open, attr, pid, cpu,
163 group_fd, flags);
164
165 if (unlikely(test_attr__enabled))
166 test_attr__open(attr, pid, cpu, fd, group_fd, flags);
167
168 return fd;
169}
170
171#define MAX_COUNTERS 256
172#define MAX_NR_CPUS 256
173
174struct ip_callchain {
175 u64 nr;
176 u64 ips[0];
177};
178
179struct branch_flags {
180 u64 mispred:1;
181 u64 predicted:1;
182 u64 reserved:62;
183};
184
185struct branch_entry {
186 u64 from;
187 u64 to;
188 struct branch_flags flags;
189};
190
191struct branch_stack {
192 u64 nr;
193 struct branch_entry entries[0];
194};
195
196extern const char *input_name;
197extern bool perf_host, perf_guest;
198extern const char perf_version_string[];
199
200void pthread__unblock_sigwinch(void);
201
202#include "util/target.h"
203
204enum perf_call_graph_mode {
205 CALLCHAIN_NONE,
206 CALLCHAIN_FP,
207 CALLCHAIN_DWARF
208};
209
210struct perf_record_opts {
211 struct perf_target target;
212 int call_graph;
213 bool group;
214 bool inherit_stat;
215 bool no_delay;
216 bool no_inherit;
217 bool no_samples;
218 bool pipe_output;
219 bool raw_samples;
220 bool sample_address;
221 bool sample_weight;
222 bool sample_time;
223 bool period;
224 unsigned int freq;
225 unsigned int mmap_pages;
226 unsigned int user_freq;
227 u64 branch_stack;
228 u64 default_interval;
229 u64 user_interval;
230 u16 stack_dump_size;
231};
232
233#endif