1 #include "util/map_symbol.h"
2 #include "util/branch.h"
3 #include <linux/kernel.h>
5 static bool cross_area(u64 addr1, u64 addr2, int size)
9 align1 = addr1 & ~(size - 1);
10 align2 = addr2 & ~(size - 1);
12 return (align1 != align2) ? true : false;
16 #define AREA_2M (2 * 1024 * 1024)
18 void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
21 if (flags->type == PERF_BR_UNKNOWN || from == 0)
24 st->counts[flags->type]++;
26 if (flags->type == PERF_BR_COND) {
33 if (cross_area(from, to, AREA_2M))
35 else if (cross_area(from, to, AREA_4K))
39 const char *branch_type_name(int type)
41 const char *branch_names[PERF_BR_MAX] = {
55 if (type >= 0 && type < PERF_BR_MAX)
56 return branch_names[type];
61 void branch_type_stat_display(FILE *fp, struct branch_type_stat *st)
66 for (i = 0; i < PERF_BR_MAX; i++)
67 total += st->counts[i];
73 fprintf(fp, "\n# Branch Statistics:");
76 if (st->cond_fwd > 0) {
77 fprintf(fp, "\n%8s: %5.1f%%",
79 100.0 * (double)st->cond_fwd / (double)total);
82 if (st->cond_bwd > 0) {
83 fprintf(fp, "\n%8s: %5.1f%%",
85 100.0 * (double)st->cond_bwd / (double)total);
88 if (st->cross_4k > 0) {
89 fprintf(fp, "\n%8s: %5.1f%%",
91 100.0 * (double)st->cross_4k / (double)total);
94 if (st->cross_2m > 0) {
95 fprintf(fp, "\n%8s: %5.1f%%",
97 100.0 * (double)st->cross_2m / (double)total);
100 for (i = 0; i < PERF_BR_MAX; i++) {
101 if (st->counts[i] > 0)
102 fprintf(fp, "\n%8s: %5.1f%%",
105 (double)st->counts[i] / (double)total);
109 static int count_str_scnprintf(int idx, const char *str, char *bf, int size)
111 return scnprintf(bf, size, "%s%s", (idx) ? " " : " (", str);
114 int branch_type_str(struct branch_type_stat *st, char *bf, int size)
116 int i, j = 0, printed = 0;
119 for (i = 0; i < PERF_BR_MAX; i++)
120 total += st->counts[i];
125 if (st->cond_fwd > 0)
126 printed += count_str_scnprintf(j++, "COND_FWD", bf + printed, size - printed);
128 if (st->cond_bwd > 0)
129 printed += count_str_scnprintf(j++, "COND_BWD", bf + printed, size - printed);
131 for (i = 0; i < PERF_BR_MAX; i++) {
132 if (i == PERF_BR_COND)
135 if (st->counts[i] > 0)
136 printed += count_str_scnprintf(j++, branch_type_name(i), bf + printed, size - printed);
139 if (st->cross_4k > 0)
140 printed += count_str_scnprintf(j++, "CROSS_4K", bf + printed, size - printed);
142 if (st->cross_2m > 0)
143 printed += count_str_scnprintf(j++, "CROSS_2M", bf + printed, size - printed);