1 #ifndef _PERF_PERF_H
2 #define _PERF_PERF_H
3
4 struct winsize;
5
6 void get_term_dimensions(struct winsize *ws);
7
8 #if defined(__i386__)
9 #include "../../arch/x86/include/asm/unistd.h"
10 #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
11 #define cpu_relax() asm volatile("rep; nop" ::: "memory");
12 #define CPUINFO_PROC "model name"
13 #ifndef __NR_perf_event_open
14 # define __NR_perf_event_open 336
15 #endif
16 #endif
17
18 #if defined(__x86_64__)
19 #include "../../arch/x86/include/asm/unistd.h"
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/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 #include "../../arch/s390/include/asm/unistd.h"
37 #define rmb() asm volatile("bcr 15,0" ::: "memory")
38 #define cpu_relax() asm volatile("" ::: "memory");
39 #endif
40
41 #ifdef __sh__
42 #include "../../arch/sh/include/asm/unistd.h"
43 #if defined(__SH4A__) || defined(__SH5__)
44 # define rmb() asm volatile("synco" ::: "memory")
45 #else
46 # define rmb() asm volatile("" ::: "memory")
47 #endif
48 #define cpu_relax() asm volatile("" ::: "memory")
49 #define CPUINFO_PROC "cpu type"
50 #endif
51
52 #ifdef __hppa__
53 #include "../../arch/parisc/include/asm/unistd.h"
54 #define rmb() asm volatile("" ::: "memory")
55 #define cpu_relax() asm volatile("" ::: "memory");
56 #define CPUINFO_PROC "cpu"
57 #endif
58
59 #ifdef __sparc__
60 #include "../../arch/sparc/include/asm/unistd.h"
61 #define rmb() asm volatile("":::"memory")
62 #define cpu_relax() asm volatile("":::"memory")
63 #define CPUINFO_PROC "cpu"
64 #endif
65
66 #ifdef __alpha__
67 #include "../../arch/alpha/include/asm/unistd.h"
68 #define rmb() asm volatile("mb" ::: "memory")
69 #define cpu_relax() asm volatile("" ::: "memory")
70 #define CPUINFO_PROC "cpu model"
71 #endif
72
73 #ifdef __ia64__
74 #include "../../arch/ia64/include/asm/unistd.h"
75 #define rmb() asm volatile ("mf" ::: "memory")
76 #define cpu_relax() asm volatile ("hint @pause" ::: "memory")
77 #define CPUINFO_PROC "model name"
78 #endif
79
80 #ifdef __arm__
81 #include "../../arch/arm/include/asm/unistd.h"
82 /*
83 * Use the __kuser_memory_barrier helper in the CPU helper page. See
84 * arch/arm/kernel/entry-armv.S in the kernel source for details.
85 */
86 #define rmb() ((void(*)(void))0xffff0fa0)()
87 #define cpu_relax() asm volatile("":::"memory")
88 #define CPUINFO_PROC "Processor"
89 #endif
90
91 #ifdef __mips__
92 #include "../../arch/mips/include/asm/unistd.h"
93 #define rmb() asm volatile( \
94 ".set mips2\n\t" \
95 "sync\n\t" \
96 ".set mips0" \
97 : /* no output */ \
98 : /* no input */ \
99 : "memory")
100 #define cpu_relax() asm volatile("" ::: "memory")
101 #define CPUINFO_PROC "cpu model"
102 #endif
103
104 #include <time.h>
105 #include <unistd.h>
106 #include <sys/types.h>
107 #include <sys/syscall.h>
108
109 #include "../../include/linux/perf_event.h"
110 #include "util/types.h"
111 #include <stdbool.h>
112
113 struct perf_mmap {
114 void *base;
115 int mask;
116 unsigned int prev;
117 };
118
perf_mmap__read_head(struct perf_mmap * mm)119 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
120 {
121 struct perf_event_mmap_page *pc = mm->base;
122 int head = pc->data_head;
123 rmb();
124 return head;
125 }
126
perf_mmap__write_tail(struct perf_mmap * md,unsigned long tail)127 static inline void perf_mmap__write_tail(struct perf_mmap *md,
128 unsigned long tail)
129 {
130 struct perf_event_mmap_page *pc = md->base;
131
132 /*
133 * ensure all reads are done before we write the tail out.
134 */
135 /* mb(); */
136 pc->data_tail = tail;
137 }
138
139 /*
140 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all
141 * counters in the current task.
142 */
143 #define PR_TASK_PERF_EVENTS_DISABLE 31
144 #define PR_TASK_PERF_EVENTS_ENABLE 32
145
146 #ifndef NSEC_PER_SEC
147 # define NSEC_PER_SEC 1000000000ULL
148 #endif
149
rdclock(void)150 static inline unsigned long long rdclock(void)
151 {
152 struct timespec ts;
153
154 clock_gettime(CLOCK_MONOTONIC, &ts);
155 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
156 }
157
158 /*
159 * Pick up some kernel type conventions:
160 */
161 #define __user
162 #define asmlinkage
163
164 #define unlikely(x) __builtin_expect(!!(x), 0)
165 #define min(x, y) ({ \
166 typeof(x) _min1 = (x); \
167 typeof(y) _min2 = (y); \
168 (void) (&_min1 == &_min2); \
169 _min1 < _min2 ? _min1 : _min2; })
170
171 static inline int
sys_perf_event_open(struct perf_event_attr * attr,pid_t pid,int cpu,int group_fd,unsigned long flags)172 sys_perf_event_open(struct perf_event_attr *attr,
173 pid_t pid, int cpu, int group_fd,
174 unsigned long flags)
175 {
176 return syscall(__NR_perf_event_open, attr, pid, cpu,
177 group_fd, flags);
178 }
179
180 #define MAX_COUNTERS 256
181 #define MAX_NR_CPUS 256
182
183 struct ip_callchain {
184 u64 nr;
185 u64 ips[0];
186 };
187
188 struct branch_flags {
189 u64 mispred:1;
190 u64 predicted:1;
191 u64 reserved:62;
192 };
193
194 struct branch_entry {
195 u64 from;
196 u64 to;
197 struct branch_flags flags;
198 };
199
200 struct branch_stack {
201 u64 nr;
202 struct branch_entry entries[0];
203 };
204
205 extern bool perf_host, perf_guest;
206 extern const char perf_version_string[];
207
208 void pthread__unblock_sigwinch(void);
209
210 struct perf_record_opts {
211 const char *target_pid;
212 const char *target_tid;
213 uid_t uid;
214 bool call_graph;
215 bool group;
216 bool inherit_stat;
217 bool no_delay;
218 bool no_inherit;
219 bool no_samples;
220 bool pipe_output;
221 bool raw_samples;
222 bool sample_address;
223 bool sample_time;
224 bool sample_id_all_missing;
225 bool exclude_guest_missing;
226 bool system_wide;
227 bool period;
228 unsigned int freq;
229 unsigned int mmap_pages;
230 unsigned int user_freq;
231 int branch_stack;
232 u64 default_interval;
233 u64 user_interval;
234 const char *cpu_list;
235 };
236
237 #endif
238