Merging r258729:

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

diff --git a/tools/lto/Makefile b/tools/lto/Makefile
index f728cbefec090358b0443a95b93f8b3787ff07d8..530c05a47318b970b1052d1e6e7e0a593ae3a8f5 100644 (file)
--- a/tools/lto/Makefile
+++ b/tools/lto/Makefile
@@ -2,29 +2,41 @@
 # 
 #                     The LLVM Compiler Infrastructure
 #
-# This file was developed by Devang Patel and is distributed under
-# the University of Illinois Open Source License. See LICENSE.TXT for details.
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
 # 
 ##===----------------------------------------------------------------------===##
 
-LEVEL = ../..
-LIBRARYNAME = LLVMlto
+LEVEL := ../..
+LIBRARYNAME := LTO
+LINK_COMPONENTS := all-targets core lto mc mcdisassembler support
+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 includeing Makefile.rules
-include $(LEVEL)/Makefile.config
+EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/lto.exports
 
-LINK_LIBS_IN_SHARED = 1
-ifeq ($(OS),Darwin)
-  SHARED_LIBRARY = 1
-  LOADABLE_MODULE = 1
-  DONT_BUILD_RELINKED = 1
-else
-  BUILD_ARCHIVE = 1
-endif
+include $(LEVEL)/Makefile.common
 
-LINK_COMPONENTS := $(TARGETS_TO_BUILD) ipo scalaropts linker bcreader bcwriter
+ifeq ($(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
 
-include $(LEVEL)/Makefile.common
+    # set dylib internal version number to llvmCore submission number
+    ifdef LLVM_SUBMIT_VERSION
+        LLVMLibsOptions := $(LLVMLibsOptions) -Wl,-current_version \
+                        -Wl,$(LTO_LIBRARY_VERSION).$(LLVM_SUBMIT_SUBVERSION) \
+                        -Wl,-compatibility_version -Wl,1
+    endif
 
+    # If we're doing an Apple-style build, add the LTO object path.
+    ifeq ($(RC_XBS),YES)
+       TempFile        := $(shell mkdir -p ${OBJROOT}/dSYMs ; mktemp ${OBJROOT}/dSYMs/llvm-lto.XXXXXX)
+       LLVMLibsOptions := $(LLVMLibsOptions) \
+                          -Wl,-object_path_lto -Wl,$(TempFile)
+    endif
+endif