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-rw-r--r--clang/test/Makefile20
-rw-r--r--clang/test/lit.cfg53
2 files changed, 71 insertions, 2 deletions
diff --git a/clang/test/Makefile b/clang/test/Makefile
index 12d713b5164..1a109758bad 100644
--- a/clang/test/Makefile
+++ b/clang/test/Makefile
@@ -8,6 +8,9 @@ else
TESTDIRS ?= $(PROJ_SRC_DIR)
endif
+# LIT2 wants objdir paths, so it will pick up the lit.site.cfg.
+LIT2_TESTDIRS := $(TESTDIRS:$(PROJ_SRC_DIR)%=$(PROJ_OBJ_DIR)%)
+
ifndef TESTARGS
ifdef VERBOSE
TESTARGS = -v
@@ -23,12 +26,12 @@ else
endif
ifdef LIT2
-all::
+all:: lit.site.cfg
@ echo '--- Running clang tests for $(TARGET_TRIPLE) ---'
@ $(LLVM_SRC_ROOT)/utils/lit/lit.py \
--path $(ToolDir) \
--path $(LLVM_SRC_ROOT)/test/Scripts \
- $(TESTARGS) $(TESTDIRS) $(VGARG)
+ $(TESTARGS) $(LIT2_TESTDIRS) $(VGARG)
else
all::
@ echo '--- Running clang tests for $(TARGET_TRIPLE) ---'
@@ -39,6 +42,19 @@ all::
$(TESTARGS) $(TESTDIRS) $(VGARG)
endif
+FORCE:
+
+lit.site.cfg: FORCE
+ @echo "Making 'lit.site.cfg' file..."
+ @echo "## Autogenerated by Makefile ##" > $@
+ @echo "# Do not edit!" >> $@
+ @echo >> $@
+ @echo "# Preserve some key paths for use by main LLVM test suite config." >> $@
+ @echo "config.clang_obj_root = \"\"\"$(PROJ_OBJ_DIR)/..\"\"\"" >> $@
+ @echo >> $@
+ @echo "# Let the main config do the real work." >> $@
+ @echo "lit.load_config(config, \"\"\"$(PROJ_SRC_DIR)/lit.cfg\"\"\")" >> $@
+
clean::
@ rm -rf Output/
diff --git a/clang/test/lit.cfg b/clang/test/lit.cfg
index dcda2ab378d..0b8e12bf0de 100644
--- a/clang/test/lit.cfg
+++ b/clang/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.
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