[Lldb-commits] [lldb] r313407 - Resubmit "[lit] Force site configs to run before source-tree configs"

Zachary Turner via lldb-commits lldb-commits at lists.llvm.org
Fri Sep 15 15:10:47 PDT 2017


Author: zturner
Date: Fri Sep 15 15:10:46 2017
New Revision: 313407

URL: http://llvm.org/viewvc/llvm-project?rev=313407&view=rev
Log:
Resubmit "[lit] Force site configs to run before source-tree configs"

This is a resubmission of r313270.  It broke standalone builds of
compiler-rt because we were not correctly generating the llvm-lit
script in the standalone build directory.

The fixes incorporated here attempt to find llvm/utils/llvm-lit
from the source tree returned by llvm-config.  If present, it
will generate llvm-lit into the output directory.  Regardless,
the user can specify -DLLVM_EXTERNAL_LIT to point to a specific
lit.py on their file system.  This supports the use case of
someone installing lit via a package manager.  If it cannot find
a source tree, and -DLLVM_EXTERNAL_LIT is either unspecified or
invalid, then we print a warning that tests will not be able
to run.

Differential Revision: https://reviews.llvm.org/D37756

Modified:
    lldb/trunk/lit/Unit/lit.cfg
    lldb/trunk/lit/lit.cfg

Modified: lldb/trunk/lit/Unit/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/lit/Unit/lit.cfg?rev=313407&r1=313406&r2=313407&view=diff
==============================================================================
--- lldb/trunk/lit/Unit/lit.cfg (original)
+++ lldb/trunk/lit/Unit/lit.cfg Fri Sep 15 15:10:46 2017
@@ -6,19 +6,6 @@ import os
 
 import lit.formats
 
-# Check that the object root is known.
-if config.test_exec_root is None:
-    # Otherwise, we haven't loaded the site specific configuration (the user is
-    # probably trying to run on a test file directly, and either the site
-    # configuration hasn't been created by the build system, or we are in an
-    # out-of-tree build situation).
-
-    # Check for 'llvm_unit_site_config' user parameter, and use that if available.
-    site_cfg = lit_config.params.get('lldb_unit_site_config', None)
-    if site_cfg and os.path.exists(site_cfg):
-        lit_config.load_config(config, site_cfg)
-        raise SystemExit
-
 # name: The name of this test suite.
 config.name = 'lldb-Unit'
 
@@ -31,6 +18,4 @@ config.test_source_root = os.path.join(c
 config.test_exec_root = config.test_source_root
 
 # testFormat: The test format to use to interpret tests.
-if not hasattr(config, 'llvm_build_mode'):
-    lit_config.fatal("unable to find llvm_build_mode value on config")
 config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, 'Tests')

Modified: lldb/trunk/lit/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/lit/lit.cfg?rev=313407&r1=313406&r2=313407&view=diff
==============================================================================
--- lldb/trunk/lit/lit.cfg (original)
+++ lldb/trunk/lit/lit.cfg Fri Sep 15 15:10:46 2017
@@ -29,94 +29,24 @@ config.suffixes = []
 config.test_source_root = os.path.dirname(__file__)
 
 # test_exec_root: The root path where tests should be run.
-lldb_obj_root = getattr(config, 'lldb_obj_root', None)
-if lldb_obj_root is not None:
-    config.test_exec_root = os.path.join(lldb_obj_root, 'lit')
-
-# Set llvm_{src,obj}_root for use by others.
-config.llvm_src_root = getattr(config, 'llvm_src_root', None)
-config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
+config.test_exec_root = os.path.join(config.lldb_obj_root, 'lit')
 
 # Tweak the PATH to include the tools dir and the scripts dir.
-if lldb_obj_root is not None:
-    lldb_tools_dir = getattr(config, 'lldb_tools_dir', None)
-    if not lldb_tools_dir:
-        lit_config.fatal('No LLDB tools dir set!')
-    llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
-    if not llvm_tools_dir:
-        lit_config.fatal('No LLVM tools dir set!')
-    path = os.path.pathsep.join((lldb_tools_dir, llvm_tools_dir, config.environment['PATH']))
-    path = os.path.pathsep.join((os.path.join(getattr(config, 'llvm_src_root', None),'test','Scripts'),path))
-
-    config.environment['PATH'] = path
-
-    lldb_libs_dir = getattr(config, 'lldb_libs_dir', None)
-    if not lldb_libs_dir:
-        lit_config.fatal('No LLDB libs dir set!')
-    llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
-    if not llvm_libs_dir:
-        lit_config.fatal('No LLVM libs dir set!')
-    path = os.path.pathsep.join((lldb_libs_dir, llvm_libs_dir,
-                                 config.environment.get('LD_LIBRARY_PATH','')))
-    config.environment['LD_LIBRARY_PATH'] = path
-
-    # Propagate LLVM_SRC_ROOT into the environment.
-    config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
-
-    # Propagate PYTHON_EXECUTABLE into the environment
-    config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable',
-                                                      '')
-###
-
-# Check that the object root is known.
-if config.test_exec_root is None:
-    # Otherwise, we haven't loaded the site specific configuration (the user is
-    # probably trying to run on a test file directly, and either the site
-    # configuration hasn't been created by the build system, or we are in an
-    # out-of-tree build situation).
-
-    # Check for 'lldb_site_config' user parameter, and use that if available.
-    site_cfg = lit_config.params.get('lldb_site_config', None)
-    if site_cfg and os.path.exists(site_cfg):
-        lit_config.load_config(config, site_cfg)
-        raise SystemExit
-
-    # Try to detect the situation where we are using an out-of-tree build by
-    # looking for 'llvm-config'.
-    #
-    # FIXME: I debated (i.e., wrote and threw away) adding logic to
-    # automagically generate the lit.site.cfg if we are in some kind of fresh
-    # build situation. This means knowing how to invoke the build system though,
-    # and I decided it was too much magic. We should solve this by just having
-    # the .cfg files generated during the configuration step.
-
-    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
-    if not llvm_config:
-        lit_config.fatal('No site specific configuration available!')
-
-    # Get the source and object roots.
-    llvm_src_root = subprocess.check_output(['llvm-config', '--src-root']).strip()
-    llvm_obj_root = subprocess.check_output(['llvm-config', '--obj-root']).strip()
-    lldb_src_root = os.path.join(llvm_src_root, "tools", "lldb")
-    lldb_obj_root = os.path.join(llvm_obj_root, "tools", "lldb")
-
-    # Validate that we got a tree which points to here, using the standard
-    # tools/lldb layout.
-    this_src_root = os.path.dirname(config.test_source_root)
-    if os.path.realpath(lldb_src_root) != os.path.realpath(this_src_root):
-        lit_config.fatal('No site specific configuration available!')
-
-    # Check that the site specific configuration exists.
-    site_cfg = os.path.join(lldb_obj_root, 'test', 'lit.site.cfg')
-    if not os.path.exists(site_cfg):
-        lit_config.fatal(
-            'No site specific configuration available! You may need to '
-            'run "make test" in your lldb build directory.')
-
-    # Okay, that worked. Notify the user of the automagic, and reconfigure.
-    lit_config.note('using out-of-tree build at %r' % lldb_obj_root)
-    lit_config.load_config(config, site_cfg)
-    raise SystemExit
+lldb_tools_dir = config.lldb_tools_dir
+llvm_tools_dir = config.llvm_tools_dir
+path = os.path.pathsep.join((config.lldb_tools_dir, config.llvm_tools_dir, config.environment['PATH']))
+
+config.environment['PATH'] = path
+
+path = os.path.pathsep.join((config.lldb_libs_dir, config.llvm_libs_dir,
+                              config.environment.get('LD_LIBRARY_PATH','')))
+config.environment['LD_LIBRARY_PATH'] = path
+
+# Propagate LLVM_SRC_ROOT into the environment.
+config.environment['LLVM_SRC_ROOT'] = getattr(config, 'llvm_src_root', '')
+
+# Propagate PYTHON_EXECUTABLE into the environment
+config.environment['PYTHON_EXECUTABLE'] = getattr(config, 'python_executable', '')
 
 # Register substitutions
 config.substitutions.append(('%python', config.python_executable))




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