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-rw-r--r--test/v4l2_compat/meson.build21
-rwxr-xr-xtest/v4l2_compat/v4l2_compat_test.py18
2 files changed, 27 insertions, 12 deletions
diff --git a/test/v4l2_compat/meson.build b/test/v4l2_compat/meson.build
index 10c46752..2691eacf 100644
--- a/test/v4l2_compat/meson.build
+++ b/test/v4l2_compat/meson.build
@@ -4,19 +4,26 @@ if not is_variable('v4l2_compat')
subdir_done()
endif
-# If ASan is enabled, the link order runtime check will fail as v4l2-ctl and
-# v4l2-compliance are not linked to ASan. Skip the test in that case.
-#
-# TODO: Find a way to LD_PRELOAD the ASan dynamic library instead, in a
-# cross-platform way with support for both gcc and clang.
+# If ASan is enabled but the ASan runtime shared library is missing,
+# v4l2_compat_test.py won't be able to LD_PRELOAD it, resulting in a link order
+# runtime check failure as v4l2-ctl and v4l2-compliance are not linked to ASan.
+# Skip the test in that case.
-if get_option('b_sanitize').contains('address')
+if asan_runtime_missing
+ warning('Unable to get path to ASan runtime, v4l2_compat test disabled')
subdir_done()
endif
v4l2_compat_test = files('v4l2_compat_test.py')
+v4l2_compat_args = []
+
+if asan_enabled
+ v4l2_compat_args += ['-s', asan_runtime]
+endif
+
+v4l2_compat_args += [v4l2_compat]
test('v4l2_compat_test', v4l2_compat_test,
- args : v4l2_compat,
+ args : v4l2_compat_args,
suite : 'v4l2_compat',
timeout : 60)
diff --git a/test/v4l2_compat/v4l2_compat_test.py b/test/v4l2_compat/v4l2_compat_test.py
index a77585fc..bd89d496 100755
--- a/test/v4l2_compat/v4l2_compat_test.py
+++ b/test/v4l2_compat/v4l2_compat_test.py
@@ -57,8 +57,8 @@ def extract_result(result):
return ret
-def test_v4l2_compliance(v4l2_compliance, v4l2_compat, device, base_driver):
- ret, output = run_with_stdout(v4l2_compliance, '-s', '-d', device, env={'LD_PRELOAD': v4l2_compat})
+def test_v4l2_compliance(v4l2_compliance, ld_preload, device, base_driver):
+ ret, output = run_with_stdout(v4l2_compliance, '-s', '-d', device, env={'LD_PRELOAD': ld_preload})
if ret < 0:
output.append(f'Test for {device} terminated due to signal {signal.Signals(-ret).name}')
return TestFail, output
@@ -82,13 +82,21 @@ def main(argv):
parser = argparse.ArgumentParser()
parser.add_argument('-a', '--all', action='store_true',
help='Test all available cameras')
+ parser.add_argument('-s', '--sanitizer', type=str,
+ help='Path to the address sanitizer (ASan) runtime')
parser.add_argument('-v', '--verbose', action='store_true',
help='Make the output verbose')
parser.add_argument('v4l2_compat', type=str,
help='Path to v4l2-compat.so')
args = parser.parse_args(argv[1:])
- v4l2_compat = args.v4l2_compat
+ # Compute the LD_PRELOAD value by first loading ASan (if specified) and
+ # then the V4L2 compat layer.
+ ld_preload = []
+ if args.sanitizer:
+ ld_preload.append(args.sanitizer)
+ ld_preload.append(args.v4l2_compat)
+ ld_preload = ':'.join(ld_preload)
v4l2_compliance = shutil.which('v4l2-compliance')
if v4l2_compliance is None:
@@ -118,7 +126,7 @@ def main(argv):
failed = []
drivers_tested = {}
for device in dev_nodes:
- ret, out = run_with_stdout(v4l2_ctl, '-D', '-d', device, env={'LD_PRELOAD': v4l2_compat})
+ ret, out = run_with_stdout(v4l2_ctl, '-D', '-d', device, env={'LD_PRELOAD': ld_preload})
if ret < 0:
failed.append(device)
print(f'v4l2-ctl failed on {device} with v4l2-compat')
@@ -144,7 +152,7 @@ def main(argv):
continue
print(f'Testing {device} with {driver} driver... ', end='')
- ret, msg = test_v4l2_compliance(v4l2_compliance, v4l2_compat, device, driver)
+ ret, msg = test_v4l2_compliance(v4l2_compliance, ld_preload, device, driver)
if ret == TestFail:
failed.append(device)
print('failed')