C++ (Cpp) dso__data_read_addrの例

コード例 #1

ファイル: unwind-libdw.c プロジェクト: AshishNamdev/linux

static int access_dso_mem(struct unwind_info *ui, Dwarf_Addr addr,
			  Dwarf_Word *data)
{
	struct addr_location al;
	ssize_t size;

	thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
			      MAP__FUNCTION, addr, &al);
	if (!al.map) {
		/*
		 * We've seen cases (softice) where DWARF unwinder went
		 * through non executable mmaps, which we need to lookup
		 * in MAP__VARIABLE tree.
		 */
		thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
				      MAP__VARIABLE, addr, &al);
	}

	if (!al.map) {
		pr_debug("unwind: no map for %lx\n", (unsigned long)addr);
		return -1;
	}

	if (!al.map->dso)
		return -1;

	size = dso__data_read_addr(al.map->dso, al.map, ui->machine,
				   addr, (u8 *) data, sizeof(*data));

	return !(size == sizeof(*data));
}

コード例 #2

ファイル: unwind-libdw.c プロジェクト: krzk/linux

static int access_dso_mem(struct unwind_info *ui, Dwarf_Addr addr,
			  Dwarf_Word *data)
{
	struct addr_location al;
	ssize_t size;

	if (!thread__find_map(ui->thread, PERF_RECORD_MISC_USER, addr, &al)) {
		pr_debug("unwind: no map for %lx\n", (unsigned long)addr);
		return -1;
	}

	if (!al.map->dso)
		return -1;

	size = dso__data_read_addr(al.map->dso, al.map, ui->machine,
				   addr, (u8 *) data, sizeof(*data));

	return !(size == sizeof(*data));
}