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#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: MIT
#
import os
import time
import tempfile
import shutil
import concurrent.futures
from oeqa.selftest.case import OESelftestTestCase
from oeqa.utils.commands import bitbake, get_bb_var, runqemu, runCmd
class GdbServerTest(OESelftestTestCase):
def test_gdb_server(self):
target_arch = self.td["TARGET_ARCH"]
target_sys = self.td["TARGET_SYS"]
deploy_dir = get_bb_var("DEPLOY_DIR_IMAGE")
features = """
IMAGE_GEN_DEBUGFS = "1"
IMAGE_FSTYPES_DEBUGFS = "tar.bz2"
CORE_IMAGE_EXTRA_INSTALL = "gdbserver"
"""
self.write_config(features)
gdb_recipe = "gdb-cross-" + target_arch
gdb_binary = target_sys + "-gdb"
bitbake("core-image-minimal %s:do_addto_recipe_sysroot" % gdb_recipe)
native_sysroot = get_bb_var("RECIPE_SYSROOT_NATIVE", gdb_recipe)
r = runCmd("%s --version" % gdb_binary, native_sysroot=native_sysroot, target_sys=target_sys)
self.assertEqual(r.status, 0)
self.assertIn("GNU gdb", r.output)
with tempfile.TemporaryDirectory(prefix="debugfs-") as debugfs:
filename = os.path.join(deploy_dir, "core-image-minimal-%s-dbg.tar.bz2" % self.td["MACHINE"])
shutil.unpack_archive(filename, debugfs)
filename = os.path.join(deploy_dir, "core-image-minimal-%s.tar.bz2" % self.td["MACHINE"])
shutil.unpack_archive(filename, debugfs)
with runqemu("core-image-minimal", runqemuparams="nographic") as qemu:
status, output = qemu.run_serial("kmod --help")
self.assertIn("modprobe", output)
with concurrent.futures.ThreadPoolExecutor(max_workers=1) as executor:
def run_gdb():
for _ in range(5):
time.sleep(2)
cmd = "%s --batch -ex 'set sysroot %s' -ex \"target extended-remote %s:9999\" -ex \"info line kmod_help\"" % (gdb_binary, debugfs, qemu.ip)
self.logger.warning("starting gdb %s" % cmd)
r = runCmd(cmd, native_sysroot=native_sysroot, target_sys=target_sys)
self.assertEqual(0, r.status)
line_re = r"Line \d+ of \"/usr/src/debug/kmod/.*/tools/kmod.c\" starts at address 0x[0-9A-Fa-f]+ <kmod_help>"
self.assertRegex(r.output, line_re)
break
else:
self.fail("Timed out connecting to gdb")
future = executor.submit(run_gdb)
status, output = qemu.run_serial("gdbserver --once :9999 kmod --help")
self.assertEqual(status, 1)
# The future either returns None, or raises an exception
future.result()
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