[Dexter] Remove the Windows dependency on lld from CMake
Currently, lld is marked as a dependency on Windows in
cross-project-tests/CMakeLists.txt which means CMake will fail if lld isn't
enabled. The idea of the cross-project-tests is that tests that don't have
their dependencies met should just be unsupported.
Remove the depenency from the CMake step and check whether Dexter's
platform-specific dependencies have been met in
cross-project-tests/lit.cfg.py. If the dependencies are met then add 'dexter'
to the available_features, otherwise don't and the dexter tests will be
"UNSUPPORTED".
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D115872
diff --git a/cross-project-tests/lit.cfg.py b/cross-project-tests/lit.cfg.py
index dba13d0..6b3284d 100644
--- a/cross-project-tests/lit.cfg.py
+++ b/cross-project-tests/lit.cfg.py
@@ -82,6 +82,68 @@
llvm_config.with_system_environment(
['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'])
+# Check which debuggers are available:
+lldb_path = llvm_config.use_llvm_tool('lldb', search_env='LLDB')
+
+if lldb_path is not None:
+ config.available_features.add('lldb')
+
+def configure_dexter_substitutions():
+ """Configure substitutions for host platform and return list of dependencies
+ """
+ # Produce dexter path, lldb path, and combine into the %dexter substitution
+ # for running a test.
+ dexter_path = os.path.join(config.cross_project_tests_src_root,
+ 'debuginfo-tests', 'dexter', 'dexter.py')
+ dexter_test_cmd = '"{}" "{}" test'.format(sys.executable, dexter_path)
+ if lldb_path is not None:
+ dexter_test_cmd += ' --lldb-executable "{}"'.format(lldb_path)
+ tools.append(ToolSubst('%dexter', dexter_test_cmd))
+
+ # For testing other bits of dexter that aren't under the "test" subcommand,
+ # have a %dexter_base substitution.
+ dexter_base_cmd = '"{}" "{}"'.format(sys.executable, dexter_path)
+ tools.append(ToolSubst('%dexter_base', dexter_base_cmd))
+
+ # Set up commands for DexTer regression tests.
+ # Builder, debugger, optimisation level and several other flags differ
+ # depending on whether we're running a unix like or windows os.
+ if platform.system() == 'Windows':
+ # The Windows builder script uses lld.
+ dependencies = ['clang', 'lld-link']
+ dexter_regression_test_builder = '--builder clang-cl_vs2015'
+ dexter_regression_test_debugger = '--debugger dbgeng'
+ dexter_regression_test_cflags = '--cflags "/Zi /Od"'
+ dexter_regression_test_ldflags = '--ldflags "/Zi"'
+ else:
+ # Use lldb as the debugger on non-Windows platforms.
+ dependencies = ['clang', 'lldb']
+ dexter_regression_test_builder = '--builder clang'
+ dexter_regression_test_debugger = "--debugger lldb"
+ dexter_regression_test_cflags = '--cflags "-O0 -glldb"'
+ dexter_regression_test_ldflags = ''
+
+ # Typical command would take the form:
+ # ./path_to_py/python.exe ./path_to_dex/dexter.py test --fail-lt 1.0 -w --builder clang --debugger lldb --cflags '-O0 -g'
+ # Exclude build flags for %dexter_regression_base.
+ dexter_regression_test_base = ' '.join(
+ # "python", "dexter.py", test, fail_mode, builder, debugger, cflags, ldflags
+ ['"{}"'.format(sys.executable),
+ '"{}"'.format(dexter_path),
+ 'test',
+ '--fail-lt 1.0 -w',
+ dexter_regression_test_debugger])
+ tools.append(ToolSubst('%dexter_regression_base', dexter_regression_test_base))
+
+ # Include build flags for %dexter_regression_test.
+ dexter_regression_test_build = ' '.join([
+ dexter_regression_test_base,
+ dexter_regression_test_builder,
+ dexter_regression_test_cflags,
+ dexter_regression_test_ldflags])
+ tools.append(ToolSubst('%dexter_regression_test', dexter_regression_test_build))
+ return dependencies
+
def add_host_triple(clang):
return '{} --target={}'.format(clang, config.host_triple)
@@ -104,73 +166,21 @@
# 'dexter' as an available feature and force the dexter tests to use the host
# triple.
if can_target_host():
- config.available_features.add('dexter')
if config.host_triple != config.target_triple:
print('Forcing dexter tests to use host triple {}.'.format(config.host_triple))
- llvm_config.with_environment('PATHTOCLANG',
- add_host_triple(llvm_config.config.clang))
- llvm_config.with_environment('PATHTOCLANGPP',
- add_host_triple(llvm_config.use_llvm_tool('clang++')))
- llvm_config.with_environment('PATHTOCLANGCL',
- add_host_triple(llvm_config.use_llvm_tool('clang-cl')))
+ dependencies = configure_dexter_substitutions()
+ if all(d in config.available_features for d in dependencies):
+ config.available_features.add('dexter')
+ llvm_config.with_environment('PATHTOCLANG',
+ add_host_triple(llvm_config.config.clang))
+ llvm_config.with_environment('PATHTOCLANGPP',
+ add_host_triple(llvm_config.use_llvm_tool('clang++')))
+ llvm_config.with_environment('PATHTOCLANGCL',
+ add_host_triple(llvm_config.use_llvm_tool('clang-cl')))
else:
print('Host triple {} not supported. Skipping dexter tests in the '
'debuginfo-tests project.'.format(config.host_triple))
-# Check which debuggers are available:
-lldb_path = llvm_config.use_llvm_tool('lldb', search_env='LLDB')
-
-if lldb_path is not None:
- config.available_features.add('lldb')
-
-# Produce dexter path, lldb path, and combine into the %dexter substitution
-# for running a test.
-dexter_path = os.path.join(config.cross_project_tests_src_root,
- 'debuginfo-tests', 'dexter', 'dexter.py')
-dexter_test_cmd = '"{}" "{}" test'.format(sys.executable, dexter_path)
-if lldb_path is not None:
- dexter_test_cmd += ' --lldb-executable "{}"'.format(lldb_path)
-tools.append(ToolSubst('%dexter', dexter_test_cmd))
-
-# For testing other bits of dexter that aren't under the "test" subcommand,
-# have a %dexter_base substitution.
-dexter_base_cmd = '"{}" "{}"'.format(sys.executable, dexter_path)
-tools.append(ToolSubst('%dexter_base', dexter_base_cmd))
-
-# Set up commands for DexTer regression tests.
-# Builder, debugger, optimisation level and several other flags differ
-# depending on whether we're running a unix like or windows os.
-if platform.system() == 'Windows':
- dexter_regression_test_builder = '--builder clang-cl_vs2015'
- dexter_regression_test_debugger = '--debugger dbgeng'
- dexter_regression_test_cflags = '--cflags "/Zi /Od"'
- dexter_regression_test_ldflags = '--ldflags "/Zi"'
-else:
- dexter_regression_test_builder = '--builder clang'
- dexter_regression_test_debugger = "--debugger lldb"
- dexter_regression_test_cflags = '--cflags "-O0 -glldb"'
- dexter_regression_test_ldflags = ''
-
-# Typical command would take the form:
-# ./path_to_py/python.exe ./path_to_dex/dexter.py test --fail-lt 1.0 -w --builder clang --debugger lldb --cflags '-O0 -g'
-# Exclude build flags for %dexter_regression_base.
-dexter_regression_test_base = ' '.join(
- # "python", "dexter.py", test, fail_mode, builder, debugger, cflags, ldflags
- ['"{}"'.format(sys.executable),
- '"{}"'.format(dexter_path),
- 'test',
- '--fail-lt 1.0 -w',
- dexter_regression_test_debugger])
-tools.append(ToolSubst('%dexter_regression_base', dexter_regression_test_base))
-
-# Include build flags for %dexter_regression_test.
-dexter_regression_test_build = ' '.join([
- dexter_regression_test_base,
- dexter_regression_test_builder,
- dexter_regression_test_cflags,
- dexter_regression_test_ldflags])
-tools.append(ToolSubst('%dexter_regression_test', dexter_regression_test_build))
-
tool_dirs = [config.llvm_tools_dir]
llvm_config.add_tool_substitutions(tools, tool_dirs)
