Use a special path to place the .o files in.

[oota-llvm.git] / tools / lto / Makefile

diff --git a/tools/lto/Makefile b/tools/lto/Makefile
index f0f6da7191a258c39f045e84543d48a1472792ba..4a468dedf59f91fe23aebe75d2fe2120415885de 100644 (file)
--- a/tools/lto/Makefile
+++ b/tools/lto/Makefile
@@ -7,33 +7,38 @@
 # 
 ##===----------------------------------------------------------------------===##
 
-LEVEL = ../..
-LIBRARYNAME = LTO
+LEVEL := ../..
+LIBRARYNAME := LTO
+LINK_COMPONENTS := all-targets ipo scalaropts linker bitreader bitwriter \
+                   mcdisassembler vectorize
+LINK_LIBS_IN_SHARED := 1
+SHARED_LIBRARY := 1
 
-# Include this here so we can get the configuration of the targets
-# that have been configured for construction. We have to do this 
-# early so we can set up LINK_COMPONENTS before including Makefile.rules
-include $(LEVEL)/Makefile.config
+EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
 
-LINK_LIBS_IN_SHARED = 1
-SHARED_LIBRARY = 1
-DONT_BUILD_RELINKED = 1
+include $(LEVEL)/Makefile.common
 
-LINK_COMPONENTS := $(TARGETS_TO_BUILD) ipo scalaropts linker bitreader bitwriter
+ifdef LLVM_VERSION_INFO
+CXX.Flags += -DLLVM_VERSION_INFO='"$(LLVM_VERSION_INFO)"'
+endif
 
-include $(LEVEL)/Makefile.common
+ifeq ($(HOST_OS),Darwin)
+    # Special hack to allow libLTO to have an offset version number.
+    ifdef LLVM_LTO_VERSION_OFFSET
+        LTO_LIBRARY_VERSION := $(shell expr $(LLVM_SUBMIT_VERSION) + \
+                                            $(LLVM_LTO_VERSION_OFFSET))
+    else
+        LTO_LIBRARY_VERSION := $(LLVM_SUBMIT_VERSION)
+    endif
 
-ifeq ($(OS),Darwin)
     # set dylib internal version number to llvmCore submission number
     ifdef LLVM_SUBMIT_VERSION
         LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
-                        -Wl,$(LLVM_SUBMIT_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
+                        -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
                         -Wl,-compatibility_version -Wl,1
     endif
     # extra options to override libtool defaults 
     LLVMLibsOptions    := $(LLVMLibsOptions)  \
-                         -no-undefined  -avoid-version \
-                         -Wl,-exported_symbols_list -Wl,$(PROJ_SRC_DIR)/lto.exports \
                          -Wl,-dead_strip \
                          -Wl,-seg1addr -Wl,0xE0000000 
 
@@ -44,4 +49,12 @@ ifeq ($(OS),Darwin)
                             -Wl,-install_name \
                             -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
     endif
+
+    # If we're doing an Apple-style build, add the LTO object path.
+    ifeq ($(RC_BUILDIT),YES)
+       ObjDir             := $(shell mkdir -p ${OBJROOT}/dSYMs)
+       TempFile           := $(shell mktemp ${ObjDir}/llvm-lto.XXXXXX)
+       LLVMLibsOptions    := $(LLVMLibsOptions) \
+                             -Wl,-object_path_lto -Wl,$(TempFile)
+    endif
 endif