Example #1
0
void thread__find_addr_location(struct thread *self,
                                struct perf_session *session, u8 cpumode,
                                enum map_type type, u64 addr,
                                struct addr_location *al,
                                symbol_filter_t filter)
{
    thread__find_addr_map(self, session, cpumode, type, addr, al);
    if (al->map != NULL)
        al->sym = map__find_symbol(al->map, al->addr, filter);
    else
        al->sym = NULL;
}
Example #2
0
void thread__find_addr_location(struct thread *self, u8 cpumode,
				enum map_type type, u64 addr,
				struct addr_location *al,
				symbol_filter_t filter)
{
	struct map_groups *mg = &self->mg;

	al->thread = self;
	al->addr = addr;

	if (cpumode & PERF_RECORD_MISC_KERNEL) {
		al->level = 'k';
		mg = kmaps;
	} else if (cpumode & PERF_RECORD_MISC_USER)
		al->level = '.';
	else {
		al->level = 'H';
		al->map = NULL;
		al->sym = NULL;
		return;
	}
try_again:
	al->map = map_groups__find(mg, type, al->addr);
	if (al->map == NULL) {
		/*
		 * If this is outside of all known maps, and is a negative
		 * address, try to look it up in the kernel dso, as it might be
		 * a vsyscall or vdso (which executes in user-mode).
		 *
		 * XXX This is nasty, we should have a symbol list in the
		 * "[vdso]" dso, but for now lets use the old trick of looking
		 * in the whole kernel symbol list.
		 */
		if ((long long)al->addr < 0 && mg != kmaps) {
			mg = kmaps;
			goto try_again;
		}
		al->sym = NULL;
	} else {
		al->addr = al->map->map_ip(al->map, al->addr);
		al->sym = map__find_symbol(al->map, al->addr, filter);
	}
}
Example #3
0
static int call__parse(struct ins_operands *ops, struct map *map)
{
	char *endptr, *tok, *name;

	ops->target.addr = strtoull(ops->raw, &endptr, 16);

	name = strchr(endptr, '<');
	if (name == NULL)
		goto indirect_call;

	name++;

#ifdef __arm__
	if (strchr(name, '+'))
		return -1;
#endif

	tok = strchr(name, '>');
	if (tok == NULL)
		return -1;

	*tok = '\0';
	ops->target.name = strdup(name);
	*tok = '>';

	return ops->target.name == NULL ? -1 : 0;

indirect_call:
	tok = strchr(endptr, '*');
	if (tok == NULL) {
		struct symbol *sym = map__find_symbol(map, map->map_ip(map, ops->target.addr));
		if (sym != NULL)
			ops->target.name = strdup(sym->name);
		else
			ops->target.addr = 0;
		return 0;
	}

	ops->target.addr = strtoull(tok + 1, NULL, 16);
	return 0;
}
Example #4
0
int event__preprocess_sample(const event_t *self, struct perf_session *session,
			     struct addr_location *al, symbol_filter_t filter)
{
	u8 cpumode = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
	struct thread *thread = perf_session__findnew(session, self->ip.pid);

	if (thread == NULL)
		return -1;

	if (symbol_conf.comm_list &&
	    !strlist__has_entry(symbol_conf.comm_list, thread->comm))
		goto out_filtered;

	dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
	/*
	 * Have we already created the kernel maps for the host machine?
	 *
	 * This should have happened earlier, when we processed the kernel MMAP
	 * events, but for older perf.data files there was no such thing, so do
	 * it now.
	 */
	if (cpumode == PERF_RECORD_MISC_KERNEL &&
	    session->host_machine.vmlinux_maps[MAP__FUNCTION] == NULL)
		machine__create_kernel_maps(&session->host_machine);

	thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
			      self->ip.pid, self->ip.ip, al);
	dump_printf(" ...... dso: %s\n",
		    al->map ? al->map->dso->long_name :
			al->level == 'H' ? "[hypervisor]" : "<not found>");
	al->sym = NULL;

	if (al->map) {
		if (symbol_conf.dso_list &&
		    (!al->map || !al->map->dso ||
		     !(strlist__has_entry(symbol_conf.dso_list,
					  al->map->dso->short_name) ||
		       (al->map->dso->short_name != al->map->dso->long_name &&
			strlist__has_entry(symbol_conf.dso_list,
					   al->map->dso->long_name)))))
			goto out_filtered;
		/*
		 * We have to do this here as we may have a dso with no symbol
		 * hit that has a name longer than the ones with symbols
		 * sampled.
		 */
		if (!sort_dso.elide && !al->map->dso->slen_calculated)
			dso__calc_col_width(al->map->dso);

		al->sym = map__find_symbol(al->map, al->addr, filter);
	} else {
		const unsigned int unresolved_col_width = BITS_PER_LONG / 4;

		if (dsos__col_width < unresolved_col_width &&
		    !symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
		    !symbol_conf.dso_list)
			dsos__col_width = unresolved_col_width;
	}

	if (symbol_conf.sym_list && al->sym &&
	    !strlist__has_entry(symbol_conf.sym_list, al->sym->name))
		goto out_filtered;

	return 0;

out_filtered:
	al->filtered = true;
	return 0;
}