/* * build-id.c * * build-id support * * Copyright (C) 2009, 2010 Red Hat Inc. * Copyright (C) 2009, 2010 Arnaldo Carvalho de Melo <acme@redhat.com> */ #include "util.h" #include <stdio.h> #include "build-id.h" #include "event.h" #include "symbol.h" #include <linux/kernel.h> #include "debug.h" #include "session.h" #include "tool.h" static int build_id__mark_dso_hit(struct perf_tool *tool __used, union perf_event *event, struct perf_sample *sample __used, struct perf_evsel *evsel __used, struct machine *machine) { struct addr_location al; u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; struct thread *thread = machine__findnew_thread(machine, event->ip.pid); if (thread == NULL) { pr_err("problem processing %d event, skipping it.\n", event->header.type); return -1; } thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, event->ip.ip, &al); if (al.map != NULL) al.map->dso->hit = 1; return 0; } static int perf_event__exit_del_thread(struct perf_tool *tool __used, union perf_event *event, struct perf_sample *sample __used, struct machine *machine) { struct thread *thread = machine__findnew_thread(machine, event->fork.tid); dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid, event->fork.ppid, event->fork.ptid); if (thread) { rb_erase(&thread->rb_node, &machine->threads); machine->last_match = NULL; thread__delete(thread); } return 0; } struct perf_tool build_id__mark_dso_hit_ops = { .sample = build_id__mark_dso_hit, .mmap = perf_event__process_mmap, .fork = perf_event__process_task, .exit = perf_event__exit_del_thread, .attr = perf_event__process_attr, .build_id = perf_event__process_build_id, }; char *dso__build_id_filename(struct dso *self, char *bf, size_t size) { char build_id_hex[BUILD_ID_SIZE * 2 + 1]; if (!self->has_build_id) return NULL; build_id__sprintf(self->build_id, sizeof(self->build_id), build_id_hex); if (bf == NULL) { if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir, build_id_hex, build_id_hex + 2) < 0) return NULL; } else snprintf(bf, size, "%s/.build-id/%.2s/%s", buildid_dir, build_id_hex, build_id_hex + 2); return bf; }