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authorDaniel Dunbar <daniel@zuster.org>2009-09-10 23:00:15 +0000
committerDaniel Dunbar <daniel@zuster.org>2009-09-10 23:00:15 +0000
commit58033318b10c68056382f7c523c7dcaa3ba14941 (patch)
treeecb289ec8e7717e789910d19ddaae665cb1c58d4 /test/lit.cfg
parentcbd1933f83e2332b2d7add10459f80cc4e7eb7bf (diff)
downloadclang-58033318b10c68056382f7c523c7dcaa3ba14941.tar.gz
Teach LIT2 how to run Clang tests in the objdir for srcdir != objdir builds.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81472 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/lit.cfg')
-rw-r--r--test/lit.cfg53
1 files changed, 53 insertions, 0 deletions
diff --git a/test/lit.cfg b/test/lit.cfg
index dcda2ab378..0b8e12bf0d 100644
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -1,6 +1,8 @@
# -*- Python -*-
def config_new():
+ import os
+
# Configuration file for the 'lit' test runner.
# name: The name of this test suite.
@@ -16,6 +18,57 @@ def config_new():
# suffixes: A list of file extensions to treat as test files.
config.suffixes = ['.c', '.cpp', '.m', '.mm']
+ # test_source_root: The root path where tests are located.
+ config.test_source_root = os.path.dirname(__file__)
+
+ # test_exec_root: The root path where tests should be run.
+ clang_obj_root = getattr(config, 'clang_obj_root', None)
+ if clang_obj_root is not None:
+ config.test_exec_root = os.path.join(clang_obj_root, 'test')
+
+ ###
+
+ # 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).
+
+ # 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.
+
+ llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
+ if not llvm_config:
+ lit.fatal('No site specific configuration available!')
+
+ # Get the source and object roots.
+ llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
+ llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
+ clang_src_root = os.path.join(llvm_src_root, "tools", "clang")
+ clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang")
+
+ # Validate that we got a tree which points to here, using the standard
+ # tools/clang layout.
+ this_src_root = os.path.dirname(config.test_source_root)
+ if os.path.realpath(clang_src_root) != os.path.realpath(this_src_root):
+ lit.fatal('No site specific configuration available!')
+
+ # Check that the site specific configuration exists.
+ site_cfg = os.path.join(clang_obj_root, 'test', 'lit.site.cfg')
+ if not os.path.exists(site_cfg):
+ lit.fatal('No site specific configuration available!')
+
+ # Okay, that worked. Notify the user of the automagic, and reconfigure.
+ lit.note('using out-of-tree build at %r' % clang_obj_root)
+ lit.load_config(config, site_cfg)
+ raise SystemExit
+
###
# Discover the 'clang' and 'clangcc' to use.