1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/zalloc.h>
12 int perf_read_values_init(struct perf_read_values *values)
14 values->threads_max = 16;
15 values->pid = malloc(values->threads_max * sizeof(*values->pid));
16 values->tid = malloc(values->threads_max * sizeof(*values->tid));
17 values->value = zalloc(values->threads_max * sizeof(*values->value));
18 if (!values->pid || !values->tid || !values->value) {
19 pr_debug("failed to allocate read_values threads arrays");
24 values->counters_max = 16;
25 values->counterrawid = malloc(values->counters_max
26 * sizeof(*values->counterrawid));
27 values->countername = malloc(values->counters_max
28 * sizeof(*values->countername));
29 if (!values->counterrawid || !values->countername) {
30 pr_debug("failed to allocate read_values counters arrays");
31 goto out_free_counter;
38 zfree(&values->counterrawid);
39 zfree(&values->countername);
43 zfree(&values->value);
47 void perf_read_values_destroy(struct perf_read_values *values)
51 if (!values->threads_max || !values->counters_max)
54 for (i = 0; i < values->threads; i++)
55 zfree(&values->value[i]);
56 zfree(&values->value);
59 zfree(&values->counterrawid);
60 for (i = 0; i < values->counters; i++)
61 zfree(&values->countername[i]);
62 zfree(&values->countername);
65 static int perf_read_values__enlarge_threads(struct perf_read_values *values)
67 int nthreads_max = values->threads_max * 2;
68 void *npid = realloc(values->pid, nthreads_max * sizeof(*values->pid)),
69 *ntid = realloc(values->tid, nthreads_max * sizeof(*values->tid)),
70 *nvalue = realloc(values->value, nthreads_max * sizeof(*values->value));
72 if (!npid || !ntid || !nvalue)
75 values->threads_max = nthreads_max;
78 values->value = nvalue;
84 pr_debug("failed to enlarge read_values threads arrays");
88 static int perf_read_values__findnew_thread(struct perf_read_values *values,
93 for (i = 0; i < values->threads; i++)
94 if (values->pid[i] == pid && values->tid[i] == tid)
97 if (values->threads == values->threads_max) {
98 i = perf_read_values__enlarge_threads(values);
105 values->value[i] = zalloc(values->counters_max * sizeof(**values->value));
106 if (!values->value[i]) {
107 pr_debug("failed to allocate read_values counters array");
110 values->pid[i] = pid;
111 values->tid[i] = tid;
112 values->threads = i + 1;
117 static int perf_read_values__enlarge_counters(struct perf_read_values *values)
120 int i, counters_max = values->counters_max * 2;
121 u64 *counterrawid = realloc(values->counterrawid, counters_max * sizeof(*values->counterrawid));
124 pr_debug("failed to enlarge read_values rawid array");
128 countername = realloc(values->countername, counters_max * sizeof(*values->countername));
130 pr_debug("failed to enlarge read_values rawid array");
134 for (i = 0; i < values->threads; i++) {
135 u64 *value = realloc(values->value[i], counters_max * sizeof(**values->value));
139 pr_debug("failed to enlarge read_values ->values array");
143 for (j = values->counters_max; j < counters_max; j++)
146 values->value[i] = value;
149 values->counters_max = counters_max;
150 values->counterrawid = counterrawid;
151 values->countername = countername;
162 static int perf_read_values__findnew_counter(struct perf_read_values *values,
163 u64 rawid, const char *name)
167 for (i = 0; i < values->counters; i++)
168 if (values->counterrawid[i] == rawid)
171 if (values->counters == values->counters_max) {
172 i = perf_read_values__enlarge_counters(values);
177 i = values->counters++;
178 values->counterrawid[i] = rawid;
179 values->countername[i] = strdup(name);
184 int perf_read_values_add_value(struct perf_read_values *values,
186 u64 rawid, const char *name, u64 value)
190 tindex = perf_read_values__findnew_thread(values, pid, tid);
193 cindex = perf_read_values__findnew_counter(values, rawid, name);
197 values->value[tindex][cindex] += value;
201 static void perf_read_values__display_pretty(FILE *fp,
202 struct perf_read_values *values)
205 int pidwidth, tidwidth;
208 counterwidth = malloc(values->counters * sizeof(*counterwidth));
210 fprintf(fp, "INTERNAL ERROR: Failed to allocate counterwidth array\n");
215 for (j = 0; j < values->counters; j++)
216 counterwidth[j] = strlen(values->countername[j]);
217 for (i = 0; i < values->threads; i++) {
220 width = snprintf(NULL, 0, "%d", values->pid[i]);
221 if (width > pidwidth)
223 width = snprintf(NULL, 0, "%d", values->tid[i]);
224 if (width > tidwidth)
226 for (j = 0; j < values->counters; j++) {
227 width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
228 if (width > counterwidth[j])
229 counterwidth[j] = width;
233 fprintf(fp, "# %*s %*s", pidwidth, "PID", tidwidth, "TID");
234 for (j = 0; j < values->counters; j++)
235 fprintf(fp, " %*s", counterwidth[j], values->countername[j]);
238 for (i = 0; i < values->threads; i++) {
239 fprintf(fp, " %*d %*d", pidwidth, values->pid[i],
240 tidwidth, values->tid[i]);
241 for (j = 0; j < values->counters; j++)
242 fprintf(fp, " %*" PRIu64,
243 counterwidth[j], values->value[i][j]);
249 static void perf_read_values__display_raw(FILE *fp,
250 struct perf_read_values *values)
252 int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
255 tidwidth = 3; /* TID */
256 pidwidth = 3; /* PID */
257 namewidth = 4; /* "Name" */
258 rawwidth = 3; /* "Raw" */
259 countwidth = 5; /* "Count" */
261 for (i = 0; i < values->threads; i++) {
262 width = snprintf(NULL, 0, "%d", values->pid[i]);
263 if (width > pidwidth)
265 width = snprintf(NULL, 0, "%d", values->tid[i]);
266 if (width > tidwidth)
269 for (j = 0; j < values->counters; j++) {
270 width = strlen(values->countername[j]);
271 if (width > namewidth)
273 width = snprintf(NULL, 0, "%" PRIx64, values->counterrawid[j]);
274 if (width > rawwidth)
277 for (i = 0; i < values->threads; i++) {
278 for (j = 0; j < values->counters; j++) {
279 width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
280 if (width > countwidth)
285 fprintf(fp, "# %*s %*s %*s %*s %*s\n",
286 pidwidth, "PID", tidwidth, "TID",
287 namewidth, "Name", rawwidth, "Raw",
288 countwidth, "Count");
289 for (i = 0; i < values->threads; i++)
290 for (j = 0; j < values->counters; j++)
291 fprintf(fp, " %*d %*d %*s %*" PRIx64 " %*" PRIu64,
292 pidwidth, values->pid[i],
293 tidwidth, values->tid[i],
294 namewidth, values->countername[j],
295 rawwidth, values->counterrawid[j],
296 countwidth, values->value[i][j]);
299 void perf_read_values_display(FILE *fp, struct perf_read_values *values, int raw)
302 perf_read_values__display_raw(fp, values);
304 perf_read_values__display_pretty(fp, values);