604 lines
14 KiB
C
604 lines
14 KiB
C
#include "sort.h"
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#include "hist.h"
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regex_t parent_regex;
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const char default_parent_pattern[] = "^sys_|^do_page_fault";
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const char *parent_pattern = default_parent_pattern;
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const char default_sort_order[] = "comm,dso,symbol";
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const char *sort_order = default_sort_order;
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int sort__need_collapse = 0;
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int sort__has_parent = 0;
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int sort__has_sym = 0;
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int sort__branch_mode = -1; /* -1 = means not set */
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enum sort_type sort__first_dimension;
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LIST_HEAD(hist_entry__sort_list);
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static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
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{
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int n;
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va_list ap;
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va_start(ap, fmt);
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n = vsnprintf(bf, size, fmt, ap);
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if (symbol_conf.field_sep && n > 0) {
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char *sep = bf;
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while (1) {
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sep = strchr(sep, *symbol_conf.field_sep);
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if (sep == NULL)
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break;
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*sep = '.';
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}
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}
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va_end(ap);
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if (n >= (int)size)
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return size - 1;
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return n;
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}
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static int64_t cmp_null(void *l, void *r)
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{
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if (!l && !r)
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return 0;
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else if (!l)
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return -1;
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else
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return 1;
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}
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/* --sort pid */
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static int64_t
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sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return right->thread->pid - left->thread->pid;
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}
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static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return repsep_snprintf(bf, size, "%*s:%5d", width - 6,
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self->thread->comm ?: "", self->thread->pid);
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}
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struct sort_entry sort_thread = {
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.se_header = "Command: Pid",
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.se_cmp = sort__thread_cmp,
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.se_snprintf = hist_entry__thread_snprintf,
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.se_width_idx = HISTC_THREAD,
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};
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/* --sort comm */
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static int64_t
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sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return right->thread->pid - left->thread->pid;
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}
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static int64_t
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sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
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{
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char *comm_l = left->thread->comm;
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char *comm_r = right->thread->comm;
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if (!comm_l || !comm_r)
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return cmp_null(comm_l, comm_r);
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return strcmp(comm_l, comm_r);
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}
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static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return repsep_snprintf(bf, size, "%*s", width, self->thread->comm);
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}
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struct sort_entry sort_comm = {
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.se_header = "Command",
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.se_cmp = sort__comm_cmp,
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.se_collapse = sort__comm_collapse,
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.se_snprintf = hist_entry__comm_snprintf,
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.se_width_idx = HISTC_COMM,
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};
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/* --sort dso */
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static int64_t _sort__dso_cmp(struct map *map_l, struct map *map_r)
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{
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struct dso *dso_l = map_l ? map_l->dso : NULL;
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struct dso *dso_r = map_r ? map_r->dso : NULL;
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const char *dso_name_l, *dso_name_r;
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if (!dso_l || !dso_r)
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return cmp_null(dso_l, dso_r);
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if (verbose) {
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dso_name_l = dso_l->long_name;
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dso_name_r = dso_r->long_name;
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} else {
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dso_name_l = dso_l->short_name;
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dso_name_r = dso_r->short_name;
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}
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return strcmp(dso_name_l, dso_name_r);
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}
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static int64_t
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sort__dso_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return _sort__dso_cmp(left->ms.map, right->ms.map);
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}
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static int _hist_entry__dso_snprintf(struct map *map, char *bf,
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size_t size, unsigned int width)
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{
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if (map && map->dso) {
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const char *dso_name = !verbose ? map->dso->short_name :
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map->dso->long_name;
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return repsep_snprintf(bf, size, "%-*s", width, dso_name);
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}
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return repsep_snprintf(bf, size, "%-*s", width, "[unknown]");
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}
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static int hist_entry__dso_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return _hist_entry__dso_snprintf(self->ms.map, bf, size, width);
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}
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struct sort_entry sort_dso = {
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.se_header = "Shared Object",
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.se_cmp = sort__dso_cmp,
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.se_snprintf = hist_entry__dso_snprintf,
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.se_width_idx = HISTC_DSO,
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};
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/* --sort symbol */
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static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r)
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{
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u64 ip_l, ip_r;
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if (!sym_l || !sym_r)
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return cmp_null(sym_l, sym_r);
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if (sym_l == sym_r)
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return 0;
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ip_l = sym_l->start;
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ip_r = sym_r->start;
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return (int64_t)(ip_r - ip_l);
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}
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static int64_t
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sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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if (!left->ms.sym && !right->ms.sym)
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return right->level - left->level;
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return _sort__sym_cmp(left->ms.sym, right->ms.sym);
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}
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static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym,
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u64 ip, char level, char *bf, size_t size,
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unsigned int width)
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{
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size_t ret = 0;
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if (verbose) {
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char o = map ? dso__symtab_origin(map->dso) : '!';
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ret += repsep_snprintf(bf, size, "%-#*llx %c ",
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BITS_PER_LONG / 4, ip, o);
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}
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ret += repsep_snprintf(bf + ret, size - ret, "[%c] ", level);
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if (sym)
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ret += repsep_snprintf(bf + ret, size - ret, "%-*s",
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width - ret,
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sym->name);
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else {
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size_t len = BITS_PER_LONG / 4;
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ret += repsep_snprintf(bf + ret, size - ret, "%-#.*llx",
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len, ip);
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ret += repsep_snprintf(bf + ret, size - ret, "%-*s",
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width - ret, "");
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}
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return ret;
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}
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static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return _hist_entry__sym_snprintf(self->ms.map, self->ms.sym, self->ip,
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self->level, bf, size, width);
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}
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struct sort_entry sort_sym = {
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.se_header = "Symbol",
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.se_cmp = sort__sym_cmp,
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.se_snprintf = hist_entry__sym_snprintf,
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.se_width_idx = HISTC_SYMBOL,
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};
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/* --sort srcline */
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static int64_t
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sort__srcline_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return (int64_t)(right->ip - left->ip);
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}
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static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
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size_t size,
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unsigned int width __maybe_unused)
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{
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FILE *fp = NULL;
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char cmd[PATH_MAX + 2], *path = self->srcline, *nl;
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size_t line_len;
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if (path != NULL)
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goto out_path;
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if (!self->ms.map)
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goto out_ip;
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if (!strncmp(self->ms.map->dso->long_name, "/tmp/perf-", 10))
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goto out_ip;
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snprintf(cmd, sizeof(cmd), "addr2line -e %s %016" PRIx64,
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self->ms.map->dso->long_name, self->ip);
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fp = popen(cmd, "r");
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if (!fp)
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goto out_ip;
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if (getline(&path, &line_len, fp) < 0 || !line_len)
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goto out_ip;
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self->srcline = strdup(path);
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if (self->srcline == NULL)
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goto out_ip;
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nl = strchr(self->srcline, '\n');
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if (nl != NULL)
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*nl = '\0';
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path = self->srcline;
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out_path:
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if (fp)
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pclose(fp);
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return repsep_snprintf(bf, size, "%s", path);
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out_ip:
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if (fp)
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pclose(fp);
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return repsep_snprintf(bf, size, "%-#*llx", BITS_PER_LONG / 4, self->ip);
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}
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struct sort_entry sort_srcline = {
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.se_header = "Source:Line",
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.se_cmp = sort__srcline_cmp,
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.se_snprintf = hist_entry__srcline_snprintf,
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.se_width_idx = HISTC_SRCLINE,
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};
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/* --sort parent */
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static int64_t
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sort__parent_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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struct symbol *sym_l = left->parent;
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struct symbol *sym_r = right->parent;
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if (!sym_l || !sym_r)
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return cmp_null(sym_l, sym_r);
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return strcmp(sym_l->name, sym_r->name);
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}
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static int hist_entry__parent_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return repsep_snprintf(bf, size, "%-*s", width,
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self->parent ? self->parent->name : "[other]");
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}
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struct sort_entry sort_parent = {
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.se_header = "Parent symbol",
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.se_cmp = sort__parent_cmp,
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.se_snprintf = hist_entry__parent_snprintf,
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.se_width_idx = HISTC_PARENT,
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};
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/* --sort cpu */
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static int64_t
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sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return right->cpu - left->cpu;
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}
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static int hist_entry__cpu_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return repsep_snprintf(bf, size, "%*d", width, self->cpu);
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}
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struct sort_entry sort_cpu = {
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.se_header = "CPU",
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.se_cmp = sort__cpu_cmp,
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.se_snprintf = hist_entry__cpu_snprintf,
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.se_width_idx = HISTC_CPU,
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};
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/* sort keys for branch stacks */
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static int64_t
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sort__dso_from_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return _sort__dso_cmp(left->branch_info->from.map,
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right->branch_info->from.map);
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}
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static int hist_entry__dso_from_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return _hist_entry__dso_snprintf(self->branch_info->from.map,
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bf, size, width);
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}
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static int64_t
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sort__dso_to_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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return _sort__dso_cmp(left->branch_info->to.map,
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right->branch_info->to.map);
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}
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static int hist_entry__dso_to_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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return _hist_entry__dso_snprintf(self->branch_info->to.map,
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bf, size, width);
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}
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static int64_t
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sort__sym_from_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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struct addr_map_symbol *from_l = &left->branch_info->from;
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struct addr_map_symbol *from_r = &right->branch_info->from;
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if (!from_l->sym && !from_r->sym)
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return right->level - left->level;
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return _sort__sym_cmp(from_l->sym, from_r->sym);
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}
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static int64_t
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sort__sym_to_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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struct addr_map_symbol *to_l = &left->branch_info->to;
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struct addr_map_symbol *to_r = &right->branch_info->to;
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if (!to_l->sym && !to_r->sym)
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return right->level - left->level;
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return _sort__sym_cmp(to_l->sym, to_r->sym);
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}
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static int hist_entry__sym_from_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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struct addr_map_symbol *from = &self->branch_info->from;
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return _hist_entry__sym_snprintf(from->map, from->sym, from->addr,
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self->level, bf, size, width);
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}
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static int hist_entry__sym_to_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width)
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{
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struct addr_map_symbol *to = &self->branch_info->to;
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return _hist_entry__sym_snprintf(to->map, to->sym, to->addr,
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self->level, bf, size, width);
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}
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struct sort_entry sort_dso_from = {
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.se_header = "Source Shared Object",
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.se_cmp = sort__dso_from_cmp,
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.se_snprintf = hist_entry__dso_from_snprintf,
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.se_width_idx = HISTC_DSO_FROM,
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};
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struct sort_entry sort_dso_to = {
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.se_header = "Target Shared Object",
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.se_cmp = sort__dso_to_cmp,
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.se_snprintf = hist_entry__dso_to_snprintf,
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.se_width_idx = HISTC_DSO_TO,
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};
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struct sort_entry sort_sym_from = {
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.se_header = "Source Symbol",
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.se_cmp = sort__sym_from_cmp,
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.se_snprintf = hist_entry__sym_from_snprintf,
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.se_width_idx = HISTC_SYMBOL_FROM,
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};
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struct sort_entry sort_sym_to = {
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.se_header = "Target Symbol",
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.se_cmp = sort__sym_to_cmp,
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.se_snprintf = hist_entry__sym_to_snprintf,
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.se_width_idx = HISTC_SYMBOL_TO,
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};
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static int64_t
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sort__mispredict_cmp(struct hist_entry *left, struct hist_entry *right)
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{
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const unsigned char mp = left->branch_info->flags.mispred !=
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right->branch_info->flags.mispred;
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const unsigned char p = left->branch_info->flags.predicted !=
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right->branch_info->flags.predicted;
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return mp || p;
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}
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static int hist_entry__mispredict_snprintf(struct hist_entry *self, char *bf,
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size_t size, unsigned int width){
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static const char *out = "N/A";
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if (self->branch_info->flags.predicted)
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out = "N";
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else if (self->branch_info->flags.mispred)
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out = "Y";
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return repsep_snprintf(bf, size, "%-*s", width, out);
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}
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struct sort_entry sort_mispredict = {
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.se_header = "Branch Mispredicted",
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.se_cmp = sort__mispredict_cmp,
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.se_snprintf = hist_entry__mispredict_snprintf,
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.se_width_idx = HISTC_MISPREDICT,
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};
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struct sort_dimension {
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const char *name;
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struct sort_entry *entry;
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int taken;
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};
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#define DIM(d, n, func) [d] = { .name = n, .entry = &(func) }
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static struct sort_dimension common_sort_dimensions[] = {
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DIM(SORT_PID, "pid", sort_thread),
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DIM(SORT_COMM, "comm", sort_comm),
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DIM(SORT_DSO, "dso", sort_dso),
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DIM(SORT_SYM, "symbol", sort_sym),
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DIM(SORT_PARENT, "parent", sort_parent),
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DIM(SORT_CPU, "cpu", sort_cpu),
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DIM(SORT_SRCLINE, "srcline", sort_srcline),
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};
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#undef DIM
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#define DIM(d, n, func) [d - __SORT_BRANCH_STACK] = { .name = n, .entry = &(func) }
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static struct sort_dimension bstack_sort_dimensions[] = {
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DIM(SORT_DSO_FROM, "dso_from", sort_dso_from),
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DIM(SORT_DSO_TO, "dso_to", sort_dso_to),
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DIM(SORT_SYM_FROM, "symbol_from", sort_sym_from),
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DIM(SORT_SYM_TO, "symbol_to", sort_sym_to),
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DIM(SORT_MISPREDICT, "mispredict", sort_mispredict),
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};
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#undef DIM
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int sort_dimension__add(const char *tok)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(common_sort_dimensions); i++) {
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struct sort_dimension *sd = &common_sort_dimensions[i];
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if (strncasecmp(tok, sd->name, strlen(tok)))
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continue;
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if (sd->entry == &sort_parent) {
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int ret = regcomp(&parent_regex, parent_pattern, REG_EXTENDED);
|
|
if (ret) {
|
|
char err[BUFSIZ];
|
|
|
|
regerror(ret, &parent_regex, err, sizeof(err));
|
|
pr_err("Invalid regex: %s\n%s", parent_pattern, err);
|
|
return -EINVAL;
|
|
}
|
|
sort__has_parent = 1;
|
|
} else if (sd->entry == &sort_sym) {
|
|
sort__has_sym = 1;
|
|
}
|
|
|
|
if (sd->taken)
|
|
return 0;
|
|
|
|
if (sd->entry->se_collapse)
|
|
sort__need_collapse = 1;
|
|
|
|
if (list_empty(&hist_entry__sort_list))
|
|
sort__first_dimension = i;
|
|
|
|
list_add_tail(&sd->entry->list, &hist_entry__sort_list);
|
|
sd->taken = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(bstack_sort_dimensions); i++) {
|
|
struct sort_dimension *sd = &bstack_sort_dimensions[i];
|
|
|
|
if (strncasecmp(tok, sd->name, strlen(tok)))
|
|
continue;
|
|
|
|
if (sort__branch_mode != 1)
|
|
return -EINVAL;
|
|
|
|
if (sd->entry == &sort_sym_from || sd->entry == &sort_sym_to)
|
|
sort__has_sym = 1;
|
|
|
|
if (sd->taken)
|
|
return 0;
|
|
|
|
if (sd->entry->se_collapse)
|
|
sort__need_collapse = 1;
|
|
|
|
if (list_empty(&hist_entry__sort_list))
|
|
sort__first_dimension = i + __SORT_BRANCH_STACK;
|
|
|
|
list_add_tail(&sd->entry->list, &hist_entry__sort_list);
|
|
sd->taken = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
return -ESRCH;
|
|
}
|
|
|
|
int setup_sorting(void)
|
|
{
|
|
char *tmp, *tok, *str = strdup(sort_order);
|
|
int ret = 0;
|
|
|
|
if (str == NULL) {
|
|
error("Not enough memory to setup sort keys");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (tok = strtok_r(str, ", ", &tmp);
|
|
tok; tok = strtok_r(NULL, ", ", &tmp)) {
|
|
ret = sort_dimension__add(tok);
|
|
if (ret == -EINVAL) {
|
|
error("Invalid --sort key: `%s'", tok);
|
|
break;
|
|
} else if (ret == -ESRCH) {
|
|
error("Unknown --sort key: `%s'", tok);
|
|
break;
|
|
}
|
|
}
|
|
|
|
free(str);
|
|
return ret;
|
|
}
|
|
|
|
void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
|
|
const char *list_name, FILE *fp)
|
|
{
|
|
if (list && strlist__nr_entries(list) == 1) {
|
|
if (fp != NULL)
|
|
fprintf(fp, "# %s: %s\n", list_name,
|
|
strlist__entry(list, 0)->s);
|
|
self->elide = true;
|
|
}
|
|
}
|