Revert "Remove support for building sanitizers from Makefile/autoconf build."

This reverts commit r229554.

Reverting this commit for now as several apple internal builds still
rely on this functionality.

llvm-svn: 229582

Author: MatzeB

clang/docs/AddressSanitizer.rst

@@ -23,7 +23,8 @@ Typical slowdown introduced by AddressSanitizer is **2x**.
 How to build
 ============
 
-Build LLVM/Clang with `CMake <http://llvm.org/docs/CMake.html>`_.
+Follow the `clang build instructions <../get_started.html>`_. CMake build is
+supported.
 
 Usage
 =====

clang/docs/MemorySanitizer.rst

@@ -16,7 +16,8 @@ Typical slowdown introduced by MemorySanitizer is **3x**.
 How to build
 ============
 
-Build LLVM/Clang with `CMake <http://llvm.org/docs/CMake.html>`_.
+Follow the `clang build instructions <../get_started.html>`_. CMake
+build is supported.
 
 Usage
 =====

clang/docs/ThreadSanitizer.rst

@@ -12,7 +12,8 @@ ThreadSanitizer is about **5x-10x**.
 How to build
 ------------
 
-Build LLVM/Clang with `CMake <http://llvm.org/docs/CMake.html>`_.
+Follow the `Clang build instructions <../get_started.html>`_.  CMake build is
+supported.
 
 Supported Platforms
 -------------------

clang/runtime/compiler-rt/Makefile

@@ -23,7 +23,9 @@ ResourceDir := $(PROJ_OBJ_ROOT)/$(BuildMode)/lib/clang/$(CLANG_VERSION)
 PROJ_resources := $(DESTDIR)$(PROJ_prefix)/lib/clang/$(CLANG_VERSION)
 
 ResourceLibDir := $(ResourceDir)/lib
+ResourceIncludeDir := $(ResourceDir)/include
 PROJ_resources_lib := $(PROJ_resources)/lib
+PROJ_resources_include := $(PROJ_resources)/include
 
 # Expect compiler-rt to be in llvm/projects/compiler-rt
 COMPILERRT_SRC_ROOT := $(LLVM_SRC_ROOT)/projects/compiler-rt
@@ -75,7 +77,9 @@ ifeq ($(OS),Darwin)
 RuntimeDirs += darwin macho_embedded
 RuntimeLibrary.darwin.Configs := \
 	eprintf.a 10.4.a osx.a cc_kext.a \
-	profile_osx.a
+	asan_osx_dynamic.dylib \
+	profile_osx.a \
+	ubsan_osx.a
 
 IOS_SDK := $(shell xcrun --show-sdk-path -sdk iphoneos 2> /dev/null)
 IOSSIM_SDK := $(shell xcrun --show-sdk-path -sdk iphonesimulator 2> /dev/null)
@@ -88,6 +92,10 @@ ifneq ($(IOS_SDK),)
 RuntimeLibrary.darwin.Configs += cc_kext_ios5.a
 endif
 
+ifneq ($(IOSSIM_SDK),)
+RuntimeLibrary.darwin.Configs += asan_iossim_dynamic.dylib
+endif
+
 RuntimeLibrary.macho_embedded.Configs := \
 	hard_static.a hard_pic.a
 ifneq (,$(findstring ARM,$(TARGETS_TO_BUILD)))
@@ -114,7 +122,8 @@ TryCompile = \
 
 # We try to build 32-bit runtimes both on 32-bit hosts and 64-bit hosts.
 Runtime32BitConfigs = \
-	builtins-i386.a profile-i386.a
+	builtins-i386.a profile-i386.a san-i386.a asan-i386.a asan_cxx-i386.a \
+	ubsan-i386.a ubsan_cxx-i386.a
 
 # We currently only try to generate runtime libraries on x86.
 ifeq ($(ARCH),x86)
@@ -123,15 +132,21 @@ endif
 
 ifeq ($(ARCH),x86_64)
 RuntimeLibrary.linux.Configs += \
-	builtins-x86_64.a profile-x86_64.a
-# We need to build 32-bit libraries on 64-bit platform, and add them
-# to the list of runtime libraries to make "clang -m32" work.
+	builtins-x86_64.a profile-x86_64.a san-x86_64.a asan-x86_64.a \
+	asan_cxx-x86_64.a tsan-x86_64.a msan-x86_64.a ubsan-x86_64.a \
+	ubsan_cxx-x86_64.a dfsan-x86_64.a lsan-x86_64.a
+# We need to build 32-bit ASan/UBsan libraries on 64-bit platform, and add them
+# to the list of runtime libraries to make
+# "clang -fsanitize=(address|undefined) -m32" work.
 # We check that Clang can produce working 32-bit binaries by compiling a simple
 # executable.
 test_source = $(LLVM_SRC_ROOT)/tools/clang/runtime/compiler-rt/clang_linux_test_input.c
 ifeq ($(call TryCompile,$(ToolDir)/clang,$(test_source),-m32),0)
 RuntimeLibrary.linux.Configs += $(Runtime32BitConfigs)
 endif
+ifneq ($(LLVM_ANDROID_TOOLCHAIN_DIR),)
+RuntimeLibrary.linux.Configs += asan-arm-android.so
+endif
 endif
 
 endif
@@ -151,6 +166,7 @@ BuildRuntimeLibraries:
 	  ProjObjRoot=$(PROJ_OBJ_DIR) \
 	  CC="$(ToolDir)/clang" \
 	  VERBOSE=$(VERBOSE) \
+	  LLVM_ANDROID_TOOLCHAIN_DIR="$(LLVM_ANDROID_TOOLCHAIN_DIR)" \
 	  $(RuntimeDirs:%=clang_%)
 .PHONY: BuildRuntimeLibraries
 CleanRuntimeLibraries:
@@ -160,10 +176,18 @@ CleanRuntimeLibraries:
 	  VERBOSE=$(VERBOSE) \
 	  clean
 .PHONY: CleanRuntimeLibraries
+RuntimeHeader: $(ResourceIncludeDir)/sanitizer
 
 $(PROJ_resources_lib):
 	$(Verb) $(MKDIR) $@
 
+$(ResourceIncludeDir):
+	$(Verb) $(MKDIR) $@
+
+$(ResourceIncludeDir)/sanitizer: $(ResourceIncludeDir)
+	$(Verb) $(MKDIR) $@
+	$(Verb) cp $(COMPILERRT_SRC_ROOT)/include/sanitizer/*.h $@
+
 # Expand rules for copying/installing each individual library. We can't use
 # implicit rules here because we need to match against multiple things.
 define RuntimeLibraryTemplate
@@ -218,9 +242,21 @@ RuntimeLibraryInstall.$1: \
 endef
 $(foreach lib,$(RuntimeDirs), $(eval $(call RuntimeLibraryTemplate,$(lib))))
 
+$(PROJ_resources_include):
+	$(Verb) $(MKDIR) $@
+
+$(PROJ_resources_include)/sanitizer: $(ResourceIncludeDir)/sanitizer $(PROJ_resources_include)
+	$(Verb) $(MKDIR) $@
+	$(Echo) Installing compiler runtime headers
+	$(Verb) $(DataInstall) $(ResourceIncludeDir)/sanitizer/* \
+                               $(PROJ_resources_include)/sanitizer
+
+RuntimeHeaderInstall: $(PROJ_resources_include)/sanitizer
+.PHONY: RuntimeHeaderInstall
+
 # Hook into the standard Makefile rules.
-all-local:: $(RuntimeDirs:%=RuntimeLibrary.%)
-install-local:: $(RuntimeDirs:%=RuntimeLibraryInstall.%)
+all-local:: $(RuntimeDirs:%=RuntimeLibrary.%) RuntimeHeader
+install-local:: $(RuntimeDirs:%=RuntimeLibraryInstall.%) RuntimeHeaderInstall
 clean-local:: CleanRuntimeLibraries
 
 endif