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+# SPDX-License-Identifier: MIT
+#
+import os
+from subprocess import Popen, PIPE
+import threading
+import time
+
+from oeqa.selftest.case import OESelftestTestCase
+from oeqa.utils.commands import bitbake, get_bb_var, get_bb_vars, runqemu , runCmd
+from oeqa.core.exception import OEQATimeoutError
+
+
+#The test runs gdbserver on qemu and connects the gdb client from host over TCP.
+#
+#It builds a cross gdb on the host and compiles the program to be debugged on the target,
+#launches the gdbserver and tries to connect cross gdb to it.
+
+
+class GdbTest(OESelftestTestCase):
+
+ def run_gdb(self, native_sysroot=None, **options):
+ # Add path to cross gdb to environment.
+ extra_paths = "%s/usr/bin/%s" % (self.recipe_sysroot_native, self.target_sys)
+ nenv = dict(options.get('env', os.environ))
+ nenv['PATH'] = extra_paths + ':' + nenv.get('PATH', '')
+ options['env'] = nenv
+
+ for count in range(5):
+ # Let the gdb server start before by putting client thread to sleep.
+ # Still, if gdb client happens to start before gdbserver, if will
+ # return "gdb connection timed out". In that case try
+ # connecting again
+ time.sleep(1)
+ cmd = "%s-gdb -ex 'set sysroot %s' -ex \"target remote %s:%s\" -ex continue -ex quit %s" \
+ %(self.target_sys, self.recipe_sysroot_native, self.qemu_ip, self.gdbserver_port, self.binary)
+ r = runCmd(cmd, native_sysroot=self.recipe_sysroot_native, **options)
+ if "Connection timed out" not in r.output:
+ break
+ if count == 4:
+ self.assertTrue(False, "gdb unable to connect to gdbserver")
+
+ def run_gdb_client(self):
+ self.run_gdb(native_sysroot=self.recipe_sysroot_native, ignore_status=False)
+
+ def test_gdb_server(self):
+ self.target_dst = "/tmp/"
+ self.source = "test.c"
+ self.binary = "test"
+ self.target_source = self.target_dst + self.source
+ self.target_binary = self.target_dst + self.binary
+ self.gdbserver_port = 2001
+
+ try:
+ # These aren't the actual IP addresses but testexport class needs something defined
+ features = 'TEST_SERVER_IP = "192.168.7.1"\n'
+ features += 'TEST_TARGET_IP = "192.168.7.2"\n'
+ features += 'EXTRA_IMAGE_FEATURES += "ssh-server-openssh"\n'
+ features += 'CORE_IMAGE_EXTRA_INSTALL += "gdbserver packagegroup-core-buildessential"\n'
+ self.write_config(features)
+
+ self.target_arch = get_bb_var('TARGET_ARCH')
+ self.target_sys = get_bb_var('TARGET_SYS')
+
+ recipe = "gdb-cross-%s" %self.target_arch
+ gdb_cross_bitbake_command = "%s -c addto_recipe_sysroot" %recipe
+
+ bitbake(gdb_cross_bitbake_command)
+
+ self.recipe_sysroot_native = get_bb_var('RECIPE_SYSROOT_NATIVE', recipe)
+
+ bitbake('core-image-minimal')
+
+ self.cross_gdb_name = "%s-gdb" %self.target_sys
+
+ # wrap the execution with a qemu instance
+ with runqemu("core-image-minimal", runqemuparams = "nographic") as qemu:
+ status, target_gcc = qemu.run_serial("which gcc")
+
+ self.assertNotEqual(target_gcc, None, 'gcc not found on the target')
+
+ self.qemu_ip = qemu.ip
+
+ # self.tc.files_dir = meta/lib/oeqa/files
+ src = os.path.join(self.tc.files_dir, 'test.c')
+
+ self.logger.debug("src : %s qemu.ip : %s self.target_dst : %s" % (src , self.qemu_ip , self.target_dst))
+ cmd = "scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR %s root@%s:%s" % (src, qemu.ip, self.target_dst)
+ result = runCmd(cmd)
+
+ cmd = "cat %s" %(self.target_source)
+ status, output = qemu.run_serial(cmd)
+ self.assertIn("1234", output, "Source file copied to target is different that what is expected")
+
+ cmd = "%s %s -o %s -lm -g" % (target_gcc, self.target_source, self.target_binary)
+ status, output = qemu.run_serial(cmd)
+
+ cmd = "ls %s" %self.target_binary
+ status, output = qemu.run_serial(cmd)
+ self.assertNotIn("No such file or directory", output, "Test file compilation failed on target")
+
+ status, output = qemu.run_serial(self.target_binary)
+ self.assertIn("1234", output, "Test binary is different than what is expected")
+
+ cmd = "scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=ERROR root@%s:%s %s" % (qemu.ip, self.target_binary, os.getcwd())
+ result = runCmd(cmd)
+
+ cmd = "strip -s --strip-debug %s" %self.target_binary
+ status, output = qemu.run_serial(cmd)
+
+ gdb_client_thread = threading.Thread(target=self.run_gdb_client)
+ gdb_client_thread.start()
+
+ cmd = "gdbserver localhost:%s %s" %(self.gdbserver_port, self.target_binary)
+ status, output = qemu.run_serial(cmd)
+ self.logger.debug("gdbserver status : %s output : %s" % (status, output))
+
+ gdb_client_thread.join()
+ self.assertIn("1234", output, "Expected string (1234) not present in test output")
+
+ except OEQATimeoutError:
+ self.fail("gdbserver test timeout error")
+
The test runs gdbserver on qemu and connects the gdb client from host over TCP. It builds a cross gdb on the host and compiles the program to be debugged on the target, launches the gdbserver and tries to connect cross gdb to it. [YOCTO #13996] Signed-off-by: Yogesh Tyagi <yogesh.tyagi@intel.com> --- meta/lib/oeqa/selftest/cases/gdbserver.py | 122 ++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 meta/lib/oeqa/selftest/cases/gdbserver.py