[arch-commits] Commit in lib32-llvm/repos (4 files)

Laurent Carlier lcarlier at archlinux.org
Sat Sep 26 20:35:06 UTC 2015


    Date: Saturday, September 26, 2015 @ 22:35:06
  Author: lcarlier
Revision: 141647

archrelease: copy trunk to multilib-staging-x86_64

Added:
  lib32-llvm/repos/multilib-staging-x86_64/
  lib32-llvm/repos/multilib-staging-x86_64/PKGBUILD
    (from rev 141646, lib32-llvm/trunk/PKGBUILD)
  lib32-llvm/repos/multilib-staging-x86_64/llvm-3.7.0-export-more-symbols.patch
    (from rev 141646, lib32-llvm/trunk/llvm-3.7.0-export-more-symbols.patch)
  lib32-llvm/repos/multilib-staging-x86_64/llvm-3.7.0-link-tools-against-libLLVM.patch
    (from rev 141646, lib32-llvm/trunk/llvm-3.7.0-link-tools-against-libLLVM.patch)

---------------------------------------------+
 PKGBUILD                                    |  156 +++++++++
 llvm-3.7.0-export-more-symbols.patch        |   11 
 llvm-3.7.0-link-tools-against-libLLVM.patch |  440 ++++++++++++++++++++++++++
 3 files changed, 607 insertions(+)

Copied: lib32-llvm/repos/multilib-staging-x86_64/PKGBUILD (from rev 141646, lib32-llvm/trunk/PKGBUILD)
===================================================================
--- multilib-staging-x86_64/PKGBUILD	                        (rev 0)
+++ multilib-staging-x86_64/PKGBUILD	2015-09-26 20:35:06 UTC (rev 141647)
@@ -0,0 +1,156 @@
+# $Id$
+# Maintainer: Evangelos Foutras <foutrelis at gmail.com>
+# Contributor: Jan "heftig" Steffens <jan.steffens at gmail.com>
+# Contributor: Sebastian Nowicki <sebnow at gmail.com>
+# Contributor: Devin Cofer <ranguvar{AT]archlinux[DOT}us>
+# Contributor: Tobias Kieslich <tobias at justdreams.de>
+# Contributor: Geoffroy Carrier <geoffroy.carrier at aur.archlinux.org>
+# Contributor: Tomas Lindquist Olsen <tomas at famolsen.dk>
+# Contributor: Roberto Alsina <ralsina at kde.org>
+# Contributor: Gerardo Exequiel Pozzi <vmlinuz386 at yahoo.com.ar>
+
+pkgname=('lib32-llvm' 'lib32-llvm-libs' 'lib32-clang')
+pkgver=3.7.0
+pkgrel=2
+arch=('x86_64')
+url="http://llvm.org/"
+license=('custom:University of Illinois/NCSA Open Source License')
+makedepends=('cmake' 'lib32-libffi' 'lib32-zlib' 'python2' 'gcc-multilib'
+             'lib32-libxml2')
+options=('staticlibs')
+source=(http://llvm.org/releases/$pkgver/llvm-$pkgver.src.tar.xz{,.sig}
+        http://llvm.org/releases/$pkgver/cfe-$pkgver.src.tar.xz{,.sig}
+        http://llvm.org/releases/$pkgver/compiler-rt-$pkgver.src.tar.xz{,.sig}
+        llvm-3.7.0-link-tools-against-libLLVM.patch
+        llvm-3.7.0-export-more-symbols.patch)
+sha256sums=('ab45895f9dcdad1e140a3a79fd709f64b05ad7364e308c0e582c5b02e9cc3153'
+            'SKIP'
+            '4ed740c5a91df1c90a4118c5154851d6a475f39a91346bdf268c1c29c13aa1cc'
+            'SKIP'
+            '227fa998520bc94974a428dc8e7654d9bdf277e5bc70d4064ebc05691bd62b0b'
+            'SKIP'
+            'cf9c8b4d70b4547eda162644658c5c203c3139fcea6c75003b6cd7dc11a8cccc'
+            'a1c9f36b97c639666ab6a1bd647a08a027e93e3d3cfd6f5af9c36e757599ce81')
+validpgpkeys=('11E521D646982372EB577A1F8F0871F202119294'
+              'B6C8F98282B944E3B0D5C2530FC3042E345AD05D')
+
+prepare() {
+  cd "$srcdir/llvm-$pkgver.src"
+
+  # At the present, clang must reside inside the LLVM source code tree to build
+  # See http://llvm.org/bugs/show_bug.cgi?id=4840
+  mv "$srcdir/cfe-$pkgver.src" tools/clang
+  
+  mv "$srcdir/compiler-rt-$pkgver.src" projects/compiler-rt
+
+  # Backport LLVM_LINK_LLVM_DYLIB option
+  # https://bugs.archlinux.org/task/46392
+  patch -Np1 -i ../llvm-3.7.0-link-tools-against-libLLVM.patch
+
+  # https://llvm.org/bugs/show_bug.cgi?id=24157
+  patch -Np2 -i ../llvm-3.7.0-export-more-symbols.patch
+
+  mkdir build
+}
+
+build() {
+  cd "$srcdir/llvm-$pkgver.src/build"
+
+  export PKG_CONFIG_PATH="/usr/lib32/pkgconfig"
+
+  cmake \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DLLVM_LIBDIR_SUFFIX=32 \
+    -DCMAKE_C_FLAGS:STRING=-m32 \
+    -DCMAKE_CXX_FLAGS:STRING=-m32 \
+    -DLLVM_TARGET_ARCH:STRING=i686 \
+    -DLLVM_DEFAULT_TARGET_TRIPLE="i686-unknown-linux-gnu" \
+    -DLLVM_BUILD_LLVM_DYLIB=ON \
+    -DLLVM_DYLIB_EXPORT_ALL=ON \
+    -DLLVM_LINK_LLVM_DYLIB=ON \
+    -DLLVM_ENABLE_RTTI=ON \
+    -DLLVM_ENABLE_FFI=ON \
+    -DLLVM_BUILD_DOCS=OFF \
+    -DLLVM_ENABLE_SPHINX=OFF \
+    -DLLVM_ENABLE_DOXYGEN=OFF \
+    -DFFI_INCLUDE_DIR=$(pkg-config --cflags-only-I libffi | cut -c3-) \
+    -DLLVM_BINUTILS_INCDIR=/usr/include \
+    ..
+
+  make
+
+  # Disable automatic installation of components that go into subpackages
+  sed -i '/\(clang\|lldb\)\/cmake_install.cmake/d' tools/cmake_install.cmake
+  sed -i '/extra\/cmake_install.cmake/d' tools/clang/tools/cmake_install.cmake
+  sed -i '/compiler-rt\/cmake_install.cmake/d' projects/cmake_install.cmake
+}
+
+package_lib32-llvm() {
+  pkgdesc="Low Level Virtual Machine (32-bit)"
+  depends=('lib32-llvm-libs' 'llvm')
+
+  cd "$srcdir/llvm-$pkgver.src"
+
+  make -C build DESTDIR="$pkgdir" install
+
+  # The runtime library goes into lib32-llvm-libs
+  mv "$pkgdir"/usr/lib32/lib{LLVM,LTO}.so* "$srcdir"
+  mv -f "$pkgdir"/usr/lib32/{LLVMgold,BugpointPasses}.so "$srcdir"
+
+  # Fix permissions of static libs
+  chmod -x "$pkgdir"/usr/lib32/*.a
+
+  mv "$pkgdir/usr/bin/llvm-config" "$pkgdir/usr/lib32/llvm-config"
+  mv "$pkgdir/usr/include/llvm/Config/llvm-config.h" \
+    "$pkgdir/usr/lib32/llvm-config-32.h"
+
+  # Get rid of example Hello transformation
+  rm "$pkgdir"/usr/lib32/*LLVMHello.*
+
+  rm -rf "$pkgdir"/usr/{bin,include,share/{doc,man,llvm}}
+  
+  # Needed for multilib (https://bugs.archlinux.org/task/29951)
+  # Header stub is taken from Fedora
+  install -d "$pkgdir/usr/include/llvm/Config"
+  mv "$pkgdir/usr/lib32/llvm-config-32.h" "$pkgdir/usr/include/llvm/Config/"
+  
+  mkdir "$pkgdir"/usr/bin
+  mv "$pkgdir/usr/lib32/llvm-config" "$pkgdir/usr/bin/llvm-config32"
+
+  install -Dm644 LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
+
+package_lib32-llvm-libs() {
+  pkgdesc="Low Level Virtual Machine (runtime library)(32-bit) "
+  depends=('lib32-libffi' 'lib32-zlib' 'lib32-ncurses' 'lib32-gcc-libs')
+
+  install -d "$pkgdir/usr/lib32"
+
+  cp -P \
+    "$srcdir"/lib{LLVM,LTO}.so* \
+    "$srcdir"/{LLVMgold,BugpointPasses}.so \
+    "$pkgdir/usr/lib32/"
+
+  # Symlink LLVMgold.so from /usr/lib/bfd-plugins
+  # https://bugs.archlinux.org/task/28479
+  install -d "$pkgdir/usr/lib32/bfd-plugins"
+  ln -s ../LLVMgold.so "$pkgdir/usr/lib32/bfd-plugins/LLVMgold.so"
+
+  install -Dm644 llvm-$pkgver.src/LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
+
+package_lib32-clang() {
+  pkgdesc="C language family frontend for LLVM"
+  url="http://clang.llvm.org/"
+  depends=("lib32-llvm=$pkgver-$pkgrel" 'clang' 'gcc-multilib')
+
+  cd "$srcdir/llvm-$pkgver.src"
+
+  make -C build/tools/clang DESTDIR="$pkgdir" install
+
+  rm -r "$pkgdir"/usr/{bin,include,share}
+
+  install -Dm644 LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
+

Copied: lib32-llvm/repos/multilib-staging-x86_64/llvm-3.7.0-export-more-symbols.patch (from rev 141646, lib32-llvm/trunk/llvm-3.7.0-export-more-symbols.patch)
===================================================================
--- multilib-staging-x86_64/llvm-3.7.0-export-more-symbols.patch	                        (rev 0)
+++ multilib-staging-x86_64/llvm-3.7.0-export-more-symbols.patch	2015-09-26 20:35:06 UTC (rev 141647)
@@ -0,0 +1,11 @@
+--- src/llvm/tools/llvm-shlib/CMakeLists.txt.orig	2015-09-06 12:31:21.765250429 +0300
++++ src/llvm/tools/llvm-shlib/CMakeLists.txt	2015-09-06 13:17:10.820174432 +0300
+@@ -64,7 +64,7 @@
+ 
+   if (LLVM_DYLIB_EXPORT_ALL)
+     add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE}
+-      COMMAND echo \"LLVM*\" > ${LLVM_EXPORTED_SYMBOL_FILE} && echo \"_Z*llvm*\" >> ${LLVM_EXPORTED_SYMBOL_FILE}
++      COMMAND echo -e \"LLVM*\\n_Z*llvm*\\nConvertUTF*\\ngetNumBytesForUTF8\\nisLegalUTF8*\" > ${LLVM_EXPORTED_SYMBOL_FILE}
+       WORKING_DIRECTORY ${LIB_DIR}
+       DEPENDS ${LLVM_DYLIB_REQUIRED_EXPORTS}
+       COMMENT "Generating combined export list...")

Copied: lib32-llvm/repos/multilib-staging-x86_64/llvm-3.7.0-link-tools-against-libLLVM.patch (from rev 141646, lib32-llvm/trunk/llvm-3.7.0-link-tools-against-libLLVM.patch)
===================================================================
--- multilib-staging-x86_64/llvm-3.7.0-link-tools-against-libLLVM.patch	                        (rev 0)
+++ multilib-staging-x86_64/llvm-3.7.0-link-tools-against-libLLVM.patch	2015-09-26 20:35:06 UTC (rev 141647)
@@ -0,0 +1,440 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index ac3b978..dd50236 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -342,9 +342,21 @@ option (LLVM_ENABLE_SPHINX "Use Sphinx to generate llvm documentation." OFF)
+ option (LLVM_BUILD_EXTERNAL_COMPILER_RT
+   "Build compiler-rt as an external project." OFF)
+ 
+-option(LLVM_BUILD_LLVM_DYLIB "Build libllvm dynamic library" OFF)
+-option(LLVM_DYLIB_EXPORT_ALL "Export all symbols from libLLVM.dylib (default is C API only" OFF)
+-option(LLVM_DISABLE_LLVM_DYLIB_ATEXIT "Disable llvm-shlib's atexit destructors." ON)
++# You can configure which libraries from LLVM you want to include in the
++# shared library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited
++# list of LLVM components. All component names handled by llvm-config are valid.
++if(NOT DEFINED LLVM_DYLIB_COMPONENTS)
++  set(LLVM_DYLIB_COMPONENTS "all" CACHE STRING
++    "Semicolon-separated list of components to include in libLLVM, or \"all\".")
++endif()
++option(LLVM_LINK_LLVM_DYLIB "Link tools against the libllvm dynamic library" OFF)
++option(LLVM_BUILD_LLVM_DYLIB "Build libllvm dynamic library" ${LLVM_LINK_LLVM_DYLIB})
++option(LLVM_DYLIB_EXPORT_ALL "Export all symbols from libLLVM.dylib (default is C API only" ${LLVM_LINK_LLVM_DYLIB})
++set(LLVM_DISABLE_LLVM_DYLIB_ATEXIT_DEFAULT ON)
++if (LLVM_LINK_LLVM_DYLIB)
++  set(LLVM_DISABLE_LLVM_DYLIB_ATEXIT_DEFAULT OFF)
++endif()
++option(LLVM_DISABLE_LLVM_DYLIB_ATEXIT "Disable llvm-shlib's atexit destructors." ${LLVM_DISABLE_LLVM_DYLIB_ATEXIT_DEFAULT})
+ if(LLVM_DISABLE_LLVM_DYLIB_ATEXIT)
+   set(DISABLE_LLVM_DYLIB_ATEXIT 1)
+ endif()
+diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
+index 45f6746..6b6e6e0 100644
+--- a/cmake/modules/AddLLVM.cmake
++++ b/cmake/modules/AddLLVM.cmake
+@@ -41,7 +41,7 @@ function(llvm_update_compile_flags name)
+   # Assume that;
+   #   - LLVM_COMPILE_FLAGS is list.
+   #   - PROPERTY COMPILE_FLAGS is string.
+-  string(REPLACE ";" " " target_compile_flags "${LLVM_COMPILE_FLAGS}")
++  string(REPLACE ";" " " target_compile_flags " ${LLVM_COMPILE_FLAGS}")
+ 
+   if(update_src_props)
+     foreach(fn ${sources})
+@@ -303,6 +303,9 @@ endfunction(set_windows_version_resource_properties)
+ #   MODULE
+ #     Target ${name} might not be created on unsupported platforms.
+ #     Check with "if(TARGET ${name})".
++#   DISABLE_LLVM_LINK_LLVM_DYLIB
++#     Do not link this library to libLLVM, even if
++#     LLVM_LINK_LLVM_DYLIB is enabled.
+ #   OUTPUT_NAME name
+ #     Corresponds to OUTPUT_NAME in target properties.
+ #   DEPENDS targets...
+@@ -316,7 +319,7 @@ endfunction(set_windows_version_resource_properties)
+ #   )
+ function(llvm_add_library name)
+   cmake_parse_arguments(ARG
+-    "MODULE;SHARED;STATIC"
++    "MODULE;SHARED;STATIC;DISABLE_LLVM_LINK_LLVM_DYLIB"
+     "OUTPUT_NAME"
+     "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
+     ${ARGN})
+@@ -444,10 +447,14 @@ function(llvm_add_library name)
+   # property has been set to an empty value.
+   get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
+ 
+-  llvm_map_components_to_libnames(llvm_libs
+-    ${ARG_LINK_COMPONENTS}
+-    ${LLVM_LINK_COMPONENTS}
+-    )
++  if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_STATIC AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
++    set(llvm_libs LLVM)
++  else()
++    llvm_map_components_to_libnames(llvm_libs
++      ${ARG_LINK_COMPONENTS}
++      ${LLVM_LINK_COMPONENTS}
++      )
++  endif()
+ 
+   if(CMAKE_VERSION VERSION_LESS 2.8.12)
+     # Link libs w/o keywords, assuming PUBLIC.
+@@ -562,7 +569,22 @@ endmacro(add_llvm_loadable_module name)
+ 
+ 
+ macro(add_llvm_executable name)
+-  llvm_process_sources( ALL_FILES ${ARGN} )
++  cmake_parse_arguments(ARG "DISABLE_LLVM_LINK_LLVM_DYLIB" "" "" ${ARGN})
++  llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} )
++
++  # Generate objlib
++  if(LLVM_ENABLE_OBJLIB)
++    # Generate an obj library for both targets.
++    set(obj_name "obj.${name}")
++    add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
++      ${ALL_FILES}
++      )
++    llvm_update_compile_flags(${obj_name})
++    set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
++
++    set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
++  endif()
++
+   add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
+ 
+   if( EXCLUDE_FROM_ALL )
+@@ -588,9 +610,13 @@ macro(add_llvm_executable name)
+     add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
+   endif(LLVM_EXPORTED_SYMBOL_FILE)
+ 
++  if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
++    set(USE_SHARED USE_SHARED)
++  endif()
++
+   set(EXCLUDE_FROM_ALL OFF)
+   set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
+-  llvm_config( ${name} ${LLVM_LINK_COMPONENTS} )
++  llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
+   if( LLVM_COMMON_DEPENDS )
+     add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
+   endif( LLVM_COMMON_DEPENDS )
+@@ -651,7 +677,7 @@ endmacro(add_llvm_example name)
+ 
+ 
+ macro(add_llvm_utility name)
+-  add_llvm_executable(${name} ${ARGN})
++  add_llvm_executable(${name} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN})
+   set_target_properties(${name} PROPERTIES FOLDER "Utils")
+   if( LLVM_INSTALL_UTILS )
+     install (TARGETS ${name}
+@@ -785,8 +811,13 @@ function(llvm_add_go_executable binary pkgpath)
+       set(cppflags "${cppflags} -I${d}")
+     endforeach(d)
+     set(ldflags "${CMAKE_EXE_LINKER_FLAGS}")
++    if (LLVM_LINK_LLVM_DYLIB)
++      set(linkmode "dylib")
++    else()
++      set(linkmode "component-libs")
++    endif()
+     add_custom_command(OUTPUT ${binpath}
+-      COMMAND ${CMAKE_BINARY_DIR}/bin/llvm-go "cc=${cc}" "cxx=${cxx}" "cppflags=${cppflags}" "ldflags=${ldflags}"
++      COMMAND ${CMAKE_BINARY_DIR}/bin/llvm-go "go=${GO_EXECUTABLE}" "cc=${cc}" "cxx=${cxx}" "cppflags=${cppflags}" "ldflags=${ldflags}" "linkmode=${linkmode}"
+               ${ARG_GOFLAGS} build -o ${binpath} ${pkgpath}
+       DEPENDS llvm-config ${CMAKE_BINARY_DIR}/bin/llvm-go${CMAKE_EXECUTABLE_SUFFIX}
+               ${llvmlibs} ${ARG_DEPENDS}
+diff --git a/cmake/modules/LLVM-Config.cmake b/cmake/modules/LLVM-Config.cmake
+index 22ac714..aa68b40 100644
+--- a/cmake/modules/LLVM-Config.cmake
++++ b/cmake/modules/LLVM-Config.cmake
+@@ -31,7 +31,23 @@ endfunction(is_llvm_target_library)
+ 
+ 
+ macro(llvm_config executable)
+-  explicit_llvm_config(${executable} ${ARGN})
++  cmake_parse_arguments(ARG "USE_SHARED" "" "" ${ARGN})
++  set(link_components ${ARG_UNPARSED_ARGUMENTS})
++
++  if(USE_SHARED)
++    # If USE_SHARED is specified, then we link against libLLVM,
++    # but also against the component libraries below. This is
++    # done in case libLLVM does not contain all of the components
++    # the target requires.
++    #
++    # TODO strip LLVM_DYLIB_COMPONENTS out of link_components.
++    # To do this, we need special handling for "all", since that
++    # may imply linking to libraries that are not included in
++    # libLLVM.
++    target_link_libraries(${executable} LLVM)
++  endif()
++
++  explicit_llvm_config(${executable} ${link_components})
+ endmacro(llvm_config)
+ 
+ 
+diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
+index 85d720e..fcb445a 100644
+--- a/cmake/modules/TableGen.cmake
++++ b/cmake/modules/TableGen.cmake
+@@ -73,6 +73,10 @@ endfunction()
+ macro(add_tablegen target project)
+   set(${target}_OLD_LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS})
+   set(LLVM_LINK_COMPONENTS ${LLVM_LINK_COMPONENTS} TableGen)
++
++  # FIXME: It leaks to user, callee of add_tablegen.
++  set(LLVM_ENABLE_OBJLIB ON)
++
+   add_llvm_utility(${target} ${ARGN})
+   set(LLVM_LINK_COMPONENTS ${${target}_OLD_LLVM_LINK_COMPONENTS})
+ 
+diff --git a/tools/llvm-go/llvm-go.go b/tools/llvm-go/llvm-go.go
+index c5c3fd2..ed79ca6 100644
+--- a/tools/llvm-go/llvm-go.go
++++ b/tools/llvm-go/llvm-go.go
+@@ -24,6 +24,11 @@ import (
+ 	"strings"
+ )
+ 
++const (
++	linkmodeComponentLibs = "component-libs"
++	linkmodeDylib         = "dylib"
++)
++
+ type pkg struct {
+ 	llvmpath, pkgpath string
+ }
+@@ -66,11 +71,12 @@ var components = []string{
+ func llvmConfig(args ...string) string {
+ 	configpath := os.Getenv("LLVM_CONFIG")
+ 	if configpath == "" {
+-		// strip llvm-go, add llvm-config
+-		configpath = os.Args[0][:len(os.Args[0])-7] + "llvm-config"
++		bin, _ := filepath.Split(os.Args[0])
++		configpath = filepath.Join(bin, "llvm-config")
+ 	}
+ 
+ 	cmd := exec.Command(configpath, args...)
++	cmd.Stderr = os.Stderr
+ 	out, err := cmd.Output()
+ 	if err != nil {
+ 		panic(err.Error())
+@@ -78,11 +84,21 @@ func llvmConfig(args ...string) string {
+ 
+ 	outstr := string(out)
+ 	outstr = strings.TrimSuffix(outstr, "\n")
+-	return strings.Replace(outstr, "\n", " ", -1)
++	outstr = strings.Replace(outstr, "\n", " ", -1)
++	return outstr
+ }
+ 
+-func llvmFlags() compilerFlags {
+-	ldflags := llvmConfig(append([]string{"--ldflags", "--libs", "--system-libs"}, components...)...)
++func llvmFlags(linkmode string) compilerFlags {
++	ldflags := llvmConfig("--ldflags")
++	switch linkmode {
++	case linkmodeComponentLibs:
++		ldflags += " " + llvmConfig(append([]string{"--libs"}, components...)...)
++	case linkmodeDylib:
++		ldflags += " -lLLVM"
++	default:
++		panic("invalid linkmode: " + linkmode)
++	}
++	ldflags += " " + llvmConfig("--system-libs")
+ 	if runtime.GOOS != "darwin" {
+ 		// OS X doesn't like -rpath with cgo. See:
+ 		// https://code.google.com/p/go/issues/detail?id=7293
+@@ -117,8 +133,8 @@ func printComponents() {
+ 	fmt.Println(strings.Join(components, " "))
+ }
+ 
+-func printConfig() {
+-	flags := llvmFlags()
++func printConfig(linkmode string) {
++	flags := llvmFlags(linkmode)
+ 
+ 	fmt.Printf(`// +build !byollvm
+ 
+@@ -137,7 +153,7 @@ type (run_build_sh int)
+ `, flags.cpp, flags.cxx, flags.ld)
+ }
+ 
+-func runGoWithLLVMEnv(args []string, cc, cxx, gocmd, llgo, cppflags, cxxflags, ldflags string) {
++func runGoWithLLVMEnv(args []string, cc, cxx, gocmd, llgo, cppflags, cxxflags, ldflags, linkmode string) {
+ 	args = addTag(args, "byollvm")
+ 
+ 	srcdir := llvmConfig("--src-root")
+@@ -166,7 +182,7 @@ func runGoWithLLVMEnv(args []string, cc, cxx, gocmd, llgo, cppflags, cxxflags, l
+ 	newgopathlist = append(newgopathlist, filepath.SplitList(os.Getenv("GOPATH"))...)
+ 	newgopath := strings.Join(newgopathlist, string(filepath.ListSeparator))
+ 
+-	flags := llvmFlags()
++	flags := llvmFlags(linkmode)
+ 
+ 	newenv := []string{
+ 		"CC=" + cc,
+@@ -178,7 +194,7 @@ func runGoWithLLVMEnv(args []string, cc, cxx, gocmd, llgo, cppflags, cxxflags, l
+ 		"PATH=" + newpath,
+ 	}
+ 	if llgo != "" {
+-		newenv = append(newenv, "GCCGO=" + llgo)
++		newenv = append(newenv, "GCCGO="+llgo)
+ 	}
+ 
+ 	for _, v := range os.Environ() {
+@@ -234,45 +250,44 @@ func main() {
+ 	ldflags := os.Getenv("CGO_LDFLAGS")
+ 	gocmd := "go"
+ 	llgo := ""
++	linkmode := linkmodeComponentLibs
++
++	flags := []struct {
++		name string
++		dest *string
++	}{
++		{"cc", &cc},
++		{"cxx", &cxx},
++		{"go", &gocmd},
++		{"llgo", &llgo},
++		{"cppflags", &cppflags},
++		{"ldflags", &ldflags},
++		{"linkmode", &linkmode},
++	}
+ 
+ 	args := os.Args[1:]
+-	DONE: for {
+-		switch {
+-		case len(args) == 0:
++LOOP:
++	for {
++		if len(args) == 0 {
+ 			usage()
+-		case strings.HasPrefix(args[0], "cc="):
+-			cc = args[0][3:]
+-			args = args[1:]
+-		case strings.HasPrefix(args[0], "cxx="):
+-			cxx = args[0][4:]
+-			args = args[1:]
+-		case strings.HasPrefix(args[0], "go="):
+-			gocmd = args[0][3:]
+-			args = args[1:]
+-		case strings.HasPrefix(args[0], "llgo="):
+-			llgo = args[0][5:]
+-			args = args[1:]
+-		case strings.HasPrefix(args[0], "cppflags="):
+-			cppflags = args[0][9:]
+-			args = args[1:]
+-		case strings.HasPrefix(args[0], "cxxflags="):
+-			cxxflags = args[0][9:]
+-			args = args[1:]
+-		case strings.HasPrefix(args[0], "ldflags="):
+-			ldflags = args[0][8:]
+-			args = args[1:]
+-		default:
+-			break DONE
+ 		}
++		for _, flag := range flags {
++			if strings.HasPrefix(args[0], flag.name+"=") {
++				*flag.dest = args[0][len(flag.name)+1:]
++				args = args[1:]
++				continue LOOP
++			}
++		}
++		break
+ 	}
+ 
+ 	switch args[0] {
+ 	case "build", "get", "install", "run", "test":
+-		runGoWithLLVMEnv(args, cc, cxx, gocmd, llgo, cppflags, cxxflags, ldflags)
++		runGoWithLLVMEnv(args, cc, cxx, gocmd, llgo, cppflags, cxxflags, ldflags, linkmode)
+ 	case "print-components":
+ 		printComponents()
+ 	case "print-config":
+-		printConfig()
++		printConfig(linkmode)
+ 	default:
+ 		usage()
+ 	}
+diff --git a/tools/llvm-shlib/CMakeLists.txt b/tools/llvm-shlib/CMakeLists.txt
+index 54d71d3..d9bd15f 100644
+--- a/tools/llvm-shlib/CMakeLists.txt
++++ b/tools/llvm-shlib/CMakeLists.txt
+@@ -2,42 +2,6 @@
+ # library is enabled by setting LLVM_BUILD_LLVM_DYLIB=yes on the CMake
+ # commandline. By default the shared library only exports the LLVM C API.
+ 
+-
+-# You can configure which libraries from LLVM you want to include in the shared
+-# library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited list of
+-# LLVM components. All compoenent names handled by llvm-config are valid.
+-
+-if(NOT DEFINED LLVM_DYLIB_COMPONENTS)
+-  set(LLVM_DYLIB_COMPONENTS
+-    ${LLVM_TARGETS_TO_BUILD}
+-    Analysis
+-    BitReader
+-    BitWriter
+-    CodeGen
+-    Core
+-    DebugInfoDWARF
+-    DebugInfoPDB
+-    ExecutionEngine
+-    IPA
+-    IPO
+-    IRReader
+-    InstCombine
+-    Instrumentation
+-    Interpreter
+-    Linker
+-    MCDisassembler
+-    MCJIT
+-    ObjCARCOpts
+-    Object
+-    ScalarOpts
+-    Support
+-    Target
+-    TransformUtils
+-    Vectorize
+-    native
+-    )
+-endif()
+-
+ add_definitions( -DLLVM_VERSION_INFO=\"${PACKAGE_VERSION}\" )
+ 
+ set(SOURCES
+@@ -46,6 +10,29 @@ set(SOURCES
+ 
+ llvm_map_components_to_libnames(LIB_NAMES ${LLVM_DYLIB_COMPONENTS})
+ 
++if(LLVM_LINK_LLVM_DYLIB)
++  if(NOT LLVM_DYLIB_EXPORT_ALL)
++    message(FATAL_ERROR "LLVM_DYLIB_EXPORT_ALL must be ON when LLVM_LINK_LLVM_DYLIB is ON")
++  endif()
++
++  # libLLVM.so should not have any dependencies on any other LLVM
++  # shared libraries. When using the "all" pseudo-component,
++  # LLVM_AVAILABLE_LIBS is added to the dependencies, which may
++  # contain shared libraries (e.g. libLTO).
++  #
++  # Also exclude libLLVMTableGen for the following reasons:
++  #  - it is only used by internal *-tblgen utilities;
++  #  - it pollutes the global options space.
++  foreach(lib ${LIB_NAMES})
++    get_target_property(t ${lib} TYPE)
++    if("${lib}" STREQUAL "LLVMTableGen")
++    elseif("x${t}" STREQUAL "xSTATIC_LIBRARY")
++      list(APPEND FILTERED_LIB_NAMES ${lib})
++    endif()
++  endforeach()
++  set(LIB_NAMES ${FILTERED_LIB_NAMES})
++endif()
++
+ if(NOT DEFINED LLVM_DYLIB_EXPORTED_SYMBOL_FILE)
+ 
+   if( WIN32 AND NOT CYGWIN )
+@@ -95,7 +82,7 @@ else()
+   add_custom_target(libLLVMExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE})
+ endif()
+ 
+-add_llvm_library(LLVM SHARED ${SOURCES})
++add_llvm_library(LLVM SHARED DISABLE_LLVM_LINK_LLVM_DYLIB ${SOURCES})
+ 
+ list(REMOVE_DUPLICATES LIB_NAMES)
+ if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux") # FIXME: It should be "GNU ld for elf"



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