[Lldb-commits] [lldb] r223088 - Link test executables with LLD on Windows.

[Zachary Turner]

Author: zturner
Date: Mon Dec  1 17:13:41 2014
New Revision: 223088

URL: http://llvm.org/viewvc/llvm-project?rev=223088&view=rev
Log:
Link test executables with LLD on Windows.

Clang generates DWARF debug info with section names longer
than 8 characters.  This is only supported by an extension
to PE/COFF which the MSVC linker doesn't implement.  So
trying to link DWARF-enabled object files with MSVC will
lead to corrupt debug information in the executable.

Modified:
    lldb/trunk/test/make/Makefile.rules

Modified: lldb/trunk/test/make/Makefile.rules
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/make/Makefile.rules?rev=223088&r1=223087&r2=223088&view=diff
==============================================================================
--- lldb/trunk/test/make/Makefile.rules (original)
+++ lldb/trunk/test/make/Makefile.rules Mon Dec  1 17:13:41 2014
@@ -34,8 +34,12 @@ LLDB_BASE_DIR := $(THIS_FILE_DIR)../../
 # If OS is not defined, use 'uname -s' to determine the OS name.
 #----------------------------------------------------------------------
 ifeq "$(ARCH)" ""
+ifeq "$(OS)" "Windows_NT"
+	ARCH = x86
+else
 	ARCH = x86_64
 endif
+endif
 
 ifeq "$(OS)" ""
 	OS = $(shell uname -s)
@@ -174,13 +178,17 @@ cxx_linker_notdir = $(if $(findstring cl
 cxx_linker = $(if $(findstring /,$(1)),$(join $(dir $(1)), $(call cxx_linker_notdir,$(notdir $(1)))),$(call cxx_linker_notdir,$(1)))
 
 #----------------------------------------------------------------------
-# Clang for Windows doesn't yet support exceptions
+# Windows specific options
 #----------------------------------------------------------------------
 ifeq "$(OS)" "Windows_NT"
 	ifneq (,$(findstring clang,$(CC)))
+		# Clang for Windows doesn't support C++ Exceptions
 		CXXFLAGS += -fno-exceptions
 		CXXFLAGS += -include $(THIS_FILE_DIR)uncaught_exception.h
 		CXXFLAGS += -D_HAS_EXCEPTIONS=0
+		# The MSVC linker doesn't understand long section names
+		# generated by the clang compiler.
+		LDFLAGS += -fuse-ld=lld
 	endif
 endif