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21#include <errno.h>
22#include <inttypes.h>
23#include <stdlib.h>
24#include <stdio.h>
25#include <linux/types.h>
26#include <linux/kernel.h>
27#include <sys/param.h>
28#include <sys/types.h>
29#include <sys/stat.h>
30#include <unistd.h>
31#include "../perf.h"
32#include "util.h"
33#include <subcmd/exec-cmd.h>
34#include "tests.h"
35
36#define ENV "PERF_TEST_ATTR"
37
38extern int verbose;
39
40static char *dir;
41
42void test_attr__init(void)
43{
44 dir = getenv(ENV);
45 test_attr__enabled = (dir != NULL);
46}
47
48#define BUFSIZE 1024
49
50#define __WRITE_ASS(str, fmt, data) \
51do { \
52 char buf[BUFSIZE]; \
53 size_t size; \
54 \
55 size = snprintf(buf, BUFSIZE, #str "=%"fmt "\n", data); \
56 if (1 != fwrite(buf, size, 1, file)) { \
57 perror("test attr - failed to write event file"); \
58 fclose(file); \
59 return -1; \
60 } \
61 \
62} while (0)
63
64#define WRITE_ASS(field, fmt) __WRITE_ASS(field, fmt, attr->field)
65
66static int store_event(struct perf_event_attr *attr, pid_t pid, int cpu,
67 int fd, int group_fd, unsigned long flags)
68{
69 FILE *file;
70 char path[PATH_MAX];
71
72 snprintf(path, PATH_MAX, "%s/event-%d-%llu-%d", dir,
73 attr->type, attr->config, fd);
74
75 file = fopen(path, "w+");
76 if (!file) {
77 perror("test attr - failed to open event file");
78 return -1;
79 }
80
81 if (fprintf(file, "[event-%d-%llu-%d]\n",
82 attr->type, attr->config, fd) < 0) {
83 perror("test attr - failed to write event file");
84 fclose(file);
85 return -1;
86 }
87
88
89 __WRITE_ASS(fd, "d", fd);
90 __WRITE_ASS(group_fd, "d", group_fd);
91 __WRITE_ASS(cpu, "d", cpu);
92 __WRITE_ASS(pid, "d", pid);
93 __WRITE_ASS(flags, "lu", flags);
94
95
96 WRITE_ASS(type, PRIu32);
97 WRITE_ASS(size, PRIu32);
98 WRITE_ASS(config, "llu");
99 WRITE_ASS(sample_period, "llu");
100 WRITE_ASS(sample_type, "llu");
101 WRITE_ASS(read_format, "llu");
102 WRITE_ASS(disabled, "d");
103 WRITE_ASS(inherit, "d");
104 WRITE_ASS(pinned, "d");
105 WRITE_ASS(exclusive, "d");
106 WRITE_ASS(exclude_user, "d");
107 WRITE_ASS(exclude_kernel, "d");
108 WRITE_ASS(exclude_hv, "d");
109 WRITE_ASS(exclude_idle, "d");
110 WRITE_ASS(mmap, "d");
111 WRITE_ASS(comm, "d");
112 WRITE_ASS(freq, "d");
113 WRITE_ASS(inherit_stat, "d");
114 WRITE_ASS(enable_on_exec, "d");
115 WRITE_ASS(task, "d");
116 WRITE_ASS(watermark, "d");
117 WRITE_ASS(precise_ip, "d");
118 WRITE_ASS(mmap_data, "d");
119 WRITE_ASS(sample_id_all, "d");
120 WRITE_ASS(exclude_host, "d");
121 WRITE_ASS(exclude_guest, "d");
122 WRITE_ASS(exclude_callchain_kernel, "d");
123 WRITE_ASS(exclude_callchain_user, "d");
124 WRITE_ASS(wakeup_events, PRIu32);
125 WRITE_ASS(bp_type, PRIu32);
126 WRITE_ASS(config1, "llu");
127 WRITE_ASS(config2, "llu");
128 WRITE_ASS(branch_sample_type, "llu");
129 WRITE_ASS(sample_regs_user, "llu");
130 WRITE_ASS(sample_stack_user, PRIu32);
131
132 fclose(file);
133 return 0;
134}
135
136void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
137 int fd, int group_fd, unsigned long flags)
138{
139 int errno_saved = errno;
140
141 if (store_event(attr, pid, cpu, fd, group_fd, flags))
142 die("test attr FAILED");
143
144 errno = errno_saved;
145}
146
147static int run_dir(const char *d, const char *perf)
148{
149 char v[] = "-vvvvv";
150 int vcnt = min(verbose, (int) sizeof(v) - 1);
151 char cmd[3*PATH_MAX];
152
153 if (verbose > 0)
154 vcnt++;
155
156 snprintf(cmd, 3*PATH_MAX, PYTHON " %s/attr.py -d %s/attr/ -p %s %.*s",
157 d, d, perf, vcnt, v);
158
159 return system(cmd);
160}
161
162int test__attr(int subtest __maybe_unused)
163{
164 struct stat st;
165 char path_perf[PATH_MAX];
166 char path_dir[PATH_MAX];
167
168
169 if (!lstat("./tests", &st))
170 return run_dir("./tests", "./perf");
171
172
173 snprintf(path_dir, PATH_MAX, "%s/tests", get_argv_exec_path());
174 snprintf(path_perf, PATH_MAX, "%s/perf", BINDIR);
175
176 if (!lstat(path_dir, &st) &&
177 !lstat(path_perf, &st))
178 return run_dir(path_dir, path_perf);
179
180 return TEST_SKIP;
181}
182