1#ifndef _PERF_PERF_H
2#define _PERF_PERF_H
3
4struct winsize;
5
6void get_term_dimensions(struct winsize *ws);
7
8#include <asm/unistd.h>
9
10#if defined(__i386__)
11#define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
12#define cpu_relax() asm volatile("rep; nop" ::: "memory");
13#define CPUINFO_PROC "model name"
14#ifndef __NR_perf_event_open
15# define __NR_perf_event_open 336
16#endif
17#endif
18
19#if defined(__x86_64__)
20#define rmb() asm volatile("lfence" ::: "memory")
21#define cpu_relax() asm volatile("rep; nop" ::: "memory");
22#define CPUINFO_PROC "model name"
23#ifndef __NR_perf_event_open
24# define __NR_perf_event_open 298
25#endif
26#endif
27
28#ifdef __powerpc__
29#include "../../arch/powerpc/include/uapi/asm/unistd.h"
30#define rmb() asm volatile ("sync" ::: "memory")
31#define cpu_relax() asm volatile ("" ::: "memory");
32#define CPUINFO_PROC "cpu"
33#endif
34
35#ifdef __s390__
36#define rmb() asm volatile("bcr 15,0" ::: "memory")
37#define cpu_relax() asm volatile("" ::: "memory");
38#endif
39
40#ifdef __sh__
41#if defined(__SH4A__) || defined(__SH5__)
42# define rmb() asm volatile("synco" ::: "memory")
43#else
44# define rmb() asm volatile("" ::: "memory")
45#endif
46#define cpu_relax() asm volatile("" ::: "memory")
47#define CPUINFO_PROC "cpu type"
48#endif
49
50#ifdef __hppa__
51#define rmb() asm volatile("" ::: "memory")
52#define cpu_relax() asm volatile("" ::: "memory");
53#define CPUINFO_PROC "cpu"
54#endif
55
56#ifdef __sparc__
57#define rmb() asm volatile("":::"memory")
58#define cpu_relax() asm volatile("":::"memory")
59#define CPUINFO_PROC "cpu"
60#endif
61
62#ifdef __alpha__
63#define rmb() asm volatile("mb" ::: "memory")
64#define cpu_relax() asm volatile("" ::: "memory")
65#define CPUINFO_PROC "cpu model"
66#endif
67
68#ifdef __ia64__
69#define rmb() asm volatile ("mf" ::: "memory")
70#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
71#define CPUINFO_PROC "model name"
72#endif
73
74#ifdef __arm__
75
76
77
78
79#define rmb() ((void(*)(void))0xffff0fa0)()
80#define cpu_relax() asm volatile("":::"memory")
81#define CPUINFO_PROC "Processor"
82#endif
83
84#ifdef __aarch64__
85#define rmb() asm volatile("dmb ld" ::: "memory")
86#define cpu_relax() asm volatile("yield" ::: "memory")
87#endif
88
89#ifdef __mips__
90#define rmb() asm volatile( \
91 ".set mips2\n\t" \
92 "sync\n\t" \
93 ".set mips0" \
94 : \
95 : \
96 : "memory")
97#define cpu_relax() asm volatile("" ::: "memory")
98#define CPUINFO_PROC "cpu model"
99#endif
100
101#include <time.h>
102#include <unistd.h>
103#include <sys/types.h>
104#include <sys/syscall.h>
105
106#include <linux/perf_event.h>
107#include "util/types.h"
108#include <stdbool.h>
109
110struct perf_mmap {
111 void *base;
112 int mask;
113 unsigned int prev;
114};
115
116static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
117{
118 struct perf_event_mmap_page *pc = mm->base;
119 int head = pc->data_head;
120 rmb();
121 return head;
122}
123
124static inline void perf_mmap__write_tail(struct perf_mmap *md,
125 unsigned long tail)
126{
127 struct perf_event_mmap_page *pc = md->base;
128
129
130
131
132
133 pc->data_tail = tail;
134}
135
136
137
138
139
140#define PR_TASK_PERF_EVENTS_DISABLE 31
141#define PR_TASK_PERF_EVENTS_ENABLE 32
142
143#ifndef NSEC_PER_SEC
144# define NSEC_PER_SEC 1000000000ULL
145#endif
146
147static inline unsigned long long rdclock(void)
148{
149 struct timespec ts;
150
151 clock_gettime(CLOCK_MONOTONIC, &ts);
152 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
153}
154
155
156
157
158#define __user
159#define asmlinkage
160
161#define unlikely(x) __builtin_expect(!!(x), 0)
162#define min(x, y) ({ \
163 typeof(x) _min1 = (x); \
164 typeof(y) _min2 = (y); \
165 (void) (&_min1 == &_min2); \
166 _min1 < _min2 ? _min1 : _min2; })
167
168extern bool test_attr__enabled;
169void test_attr__init(void);
170void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
171 int fd, int group_fd, unsigned long flags);
172
173static inline int
174sys_perf_event_open(struct perf_event_attr *attr,
175 pid_t pid, int cpu, int group_fd,
176 unsigned long flags)
177{
178 int fd;
179
180 fd = syscall(__NR_perf_event_open, attr, pid, cpu,
181 group_fd, flags);
182
183 if (unlikely(test_attr__enabled))
184 test_attr__open(attr, pid, cpu, fd, group_fd, flags);
185
186 return fd;
187}
188
189#define MAX_COUNTERS 256
190#define MAX_NR_CPUS 256
191
192struct ip_callchain {
193 u64 nr;
194 u64 ips[0];
195};
196
197struct branch_flags {
198 u64 mispred:1;
199 u64 predicted:1;
200 u64 reserved:62;
201};
202
203struct branch_entry {
204 u64 from;
205 u64 to;
206 struct branch_flags flags;
207};
208
209struct branch_stack {
210 u64 nr;
211 struct branch_entry entries[0];
212};
213
214extern const char *input_name;
215extern bool perf_host, perf_guest;
216extern const char perf_version_string[];
217
218void pthread__unblock_sigwinch(void);
219
220#include "util/target.h"
221
222enum perf_call_graph_mode {
223 CALLCHAIN_NONE,
224 CALLCHAIN_FP,
225 CALLCHAIN_DWARF
226};
227
228struct perf_record_opts {
229 struct perf_target target;
230 int call_graph;
231 bool group;
232 bool inherit_stat;
233 bool no_delay;
234 bool no_inherit;
235 bool no_samples;
236 bool pipe_output;
237 bool raw_samples;
238 bool sample_address;
239 bool sample_time;
240 bool sample_id_all_missing;
241 bool exclude_guest_missing;
242 bool period;
243 unsigned int freq;
244 unsigned int mmap_pages;
245 unsigned int user_freq;
246 u64 branch_stack;
247 u64 default_interval;
248 u64 user_interval;
249 u16 stack_dump_size;
250};
251
252#endif
253
