Cherry pick testsuite improvements

lldb/packages/Python/lldbsuite/test/lang/cpp/incomplete-types/Makefile

@@ -1,33 +1,22 @@
-CXX_SOURCES = main.cpp length.cpp a.cpp
-
-CFLAGS_LIMIT = -c $(CXXFLAGS)
-CFLAGS_NO_LIMIT = -c $(CXXFLAGS)
-
-ifneq (,$(findstring clang,$(CC)))
-  CFLAGS_LIMIT += -flimit-debug-info
-  CFLAGS_NO_LIMIT += -fno-limit-debug-info
-endif
+CXX_SOURCES := length.cpp a.o main.o
+EXE := nolimit
 
 all: limit nolimit
 
-limit: main.o length_limit.o a.o
-	$(CXX) main.o length_limit.o a.o -o limit $(LDFLAGS)
-
-nolimit: main.o length_nolimit.o a.o
-	$(CXX) main.o length_nolimit.o a.o -o nolimit $(LDFLAGS)
-
-main.o: main.cpp
-	$(CXX) $(CFLAGS_LIMIT) $(SRCDIR)/main.cpp -o main.o
-
-length_limit.o: length.cpp
-	$(CXX) $(CFLAGS_LIMIT) $(SRCDIR)/length.cpp -o length_limit.o
+include Makefile.rules
 
-length_nolimit.o: length.cpp
-	$(CXX) $(CFLAGS_NO_LIMIT) $(SRCDIR)/length.cpp -o length_nolimit.o
+# Force a.cpp to be built with no debug inforamtion
+a.o: CFLAGS = $(CFLAGS_NO_DEBUG)
 
-a.o: a.cpp
-	$(CXX) $(CFLAGS_NO_DEBUG) -c $(SRCDIR)/a.cpp -o a.o
+# The default testsuite setup forces -fno-limit-debug-info. Let's not rely on
+# CFLAGS_EXTRAS being passed after the default arguments. This rule makes
+# sure the variable used by Makefile.rules for this argument is cleared.
+main.o: NO_LIMIT_DEBUG_INFO_FLAGS = ""
+main.o: CFLAGS_EXTRAS = -flimit-debug-info
 
-clean: OBJECTS += limit nolimit length_limit.o length_nolimit.o length_limit.dwo length_nolimit.dwo
+limit: a.o main.o
+	mkdir -p build_limit
+	$(MAKE) -C $(BUILDDIR)/build_limit -f $(MAKEFILE_RULES) \
+		EXE=../limit CXX_SOURCES="length.cpp ../a.o ../main.o" \
+		CFLAGS_EXTRAS=-flimit-debug-info NO_LIMIT_DEBUG_INFO_FLAGS=""
 
-include Makefile.rules

lldb/packages/Python/lldbsuite/test/lang/objc/ivar-IMP/Makefile

@@ -1,26 +1,8 @@
-CC ?= clang
-ifeq "$(ARCH)" ""
-        ARCH = x86_64
-endif
+OBJC_SOURCES := myclass.m repro.m
+LD_EXTRAS := -framework Foundation
 
-ifeq "$(OS)" ""
-        OS = $(shell uname -s)
-endif
-
-CFLAGS ?= -g -O0
-CFLAGS_NO_DEBUG = 
-ifeq "$(OS)" "Darwin"
-        CFLAGS += -arch $(ARCH)
-		CFLAGS_NO_DEBUG += -arch $(ARCH)
-endif
-
-all: aout
-
-aout: 
-	$(CC) $(CFLAGS_NO_DEBUG) $(SRCDIR)/myclass.m -c -o myclass.o
-	$(CC) $(CFLAGS) myclass.o $(SRCDIR)/repro.m -framework Foundation
+include Makefile.rules
 
-clean::
-	rm -f myclass.o
+# Force myclass.m to be compiled without debug info
+myclass.o: CFLAGS = $(CFLAGS_NO_DEBUG)
 
-include Makefile.rules

lldb/packages/Python/lldbsuite/test/make/Makefile.rules

@@ -34,6 +34,13 @@ BUILDDIR := $(shell pwd)
 THIS_FILE_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))
 LLDB_BASE_DIR := $(THIS_FILE_DIR)/../../../../../
 
+# The test harness invokes the test Makefiles with an explicit 'all'
+# target, but its handy to be able to recursively call this Makefile
+# without speficying a goal. You almost certainly want to build 'all',
+# and not only the first target defined in this file (which might vary
+# according to varaible values).
+.DEFAULT_GOAL := all
+
 #----------------------------------------------------------------------
 # If OS is not defined, use 'uname -s' to determine the OS name.
 #