From ea6c39d417172a8edb99667e93cd6b67cd024e6a Mon Sep 17 00:00:00 2001
From: Jeffrey Yasskin <jyasskin@google.com>
Date: Tue, 23 Feb 2010 18:10:07 +0000
Subject: Roll r96559 forward again, adding libLLVM-2.7svn.so to LLVM.  This
 links 3 of the examples shared to make sure the shared library keeps working.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96959 91177308-0d34-0410-b5e6-96231b3b80d8
---
 tools/llvm-shlib/Makefile | 67 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 tools/llvm-shlib/Makefile

(limited to 'tools/llvm-shlib')

diff --git a/tools/llvm-shlib/Makefile b/tools/llvm-shlib/Makefile
new file mode 100644
index 0000000000..fd8a107c47
--- /dev/null
+++ b/tools/llvm-shlib/Makefile
@@ -0,0 +1,67 @@
+##===- tools/shlib/Makefile --------------------------------*- Makefile -*-===##
+# 
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+# 
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../..
+LIBRARYNAME = LLVM-$(LLVMVersion)
+
+NO_BUILD_ARCHIVE = 1
+LINK_LIBS_IN_SHARED = 1
+SHARED_LIBRARY = 1
+
+include $(LEVEL)/Makefile.common
+
+# Include all archives in libLLVM.(so|dylib) except the ones that have
+# their own dynamic libraries.
+Archives := $(wildcard $(LibDir)/libLLVM*.a)
+SharedLibraries := $(wildcard $(LibDir)/libLLVM*$(SHLIBEXT))
+IncludeInLibLlvm := $(filter-out $(basename $(SharedLibraries)).a, $(Archives))
+LLVMLibsOptions := $(IncludeInLibLlvm:$(LibDir)/lib%.a=-l%)
+LLVMLibsPaths   := $(IncludeInLibLlvm)
+
+$(LibName.SO): $(LLVMLibsPaths)
+
+ifeq ($(HOST_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,-compatibility_version -Wl,1
+    endif
+    # Include everything from the .a's into the shared library.
+    LLVMLibsOptions    := $(LLVMLibsOptions) -all_load
+    # extra options to override libtool defaults 
+    LLVMLibsOptions    := $(LLVMLibsOptions)  \
+                         -avoid-version \
+                         -Wl,-dead_strip \
+                         -Wl,-seg1addr -Wl,0xE0000000 
+
+    # Mac OS X 10.4 and earlier tools do not allow a second -install_name on command line
+    DARWIN_VERS := $(shell echo $(TARGET_TRIPLE) | sed 's/.*darwin\([0-9]*\).*/\1/')
+    ifneq ($(DARWIN_VERS),8)
+       LLVMLibsOptions    := $(LLVMLibsOptions)  \
+                            -Wl,-install_name \
+                            -Wl,"@executable_path/../lib/lib$(LIBRARYNAME)$(SHLIBEXT)"
+    endif
+endif
+
+ifeq ($(HOST_OS), Linux)
+    # Include everything from the .a's into the shared library.
+    LLVMLibsOptions := -Wl,--whole-archive $(LLVMLibsOptions) \
+                       -Wl,--no-whole-archive
+    # Warn if we'll need to modify the text segment when loading libLLVM.so.
+    LLVMLibsOptions += -Wl,--warn-shared-textrel
+    # Don't allow unresolved symbols.
+    LLVMLibsOptions += -Wl,--no-undefined
+    ifneq ($(ARCH), ARM)
+        # ARM's shared libgcc omits several of the __sync functions that are
+        # present in the static libgcc, so we also link in the static gcc.  This
+        # is described at http://gcc.gnu.org/PR40133.
+        LLVMLibsOptions += -lgcc
+    endif
+endif
-- 
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