Changes for building Clang and others using LLVM as an external
library.
Installs tblgen (required by Clang).
Translates handling of user settings and platform-dependant options to
its own file, where it can included by another project.
Installs the .cmake files required by projects like Clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124816 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index 31fd632..8484bb6 100755
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -357,19 +357,3 @@
endif()
set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX})
-
-configure_file(
- ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/config.h.cmake
- ${LLVM_BINARY_DIR}/include/llvm/Config/config.h
- )
-
-configure_file(
- ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/llvm-config.h.cmake
- ${LLVM_BINARY_DIR}/include/llvm/Config/llvm-config.h
- )
-
-configure_file(
- ${LLVM_MAIN_INCLUDE_DIR}/llvm/Support/DataTypes.h.cmake
- ${LLVM_BINARY_DIR}/include/llvm/Support/DataTypes.h
- )
-
diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
index 416d7f4..8448486 100644
--- a/cmake/modules/CMakeLists.txt
+++ b/cmake/modules/CMakeLists.txt
@@ -10,3 +10,20 @@
LLVMConfig.cmake
LLVMLibDeps.cmake
DESTINATION share/llvm/cmake)
+
+install(DIRECTORY .
+ DESTINATION share/llvm/cmake
+ PATTERN *.cmake
+ PATTERN LLVM.cmake EXCLUDE
+ PATTERN LLVMConfig.cmake EXCLUDE
+ PATTERN LLVMLibDeps.cmake EXCLUDE
+ PATTERN FindBison.cmake EXCLUDE
+ PATTERN GetTargetTriple.cmake EXCLUDE
+ PATTERN VersionFromVCS.cmake EXCLUDE
+ PATTERN CheckAtomic.cmake EXCLUDE)
+
+install(FILES
+ ${llvm_cmake_builddir}/LLVM.cmake
+ LLVMConfig.cmake
+ LLVMLibDeps.cmake
+ DESTINATION share/llvm/cmake)
diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake
new file mode 100644
index 0000000..ed3e366
--- /dev/null
+++ b/cmake/modules/HandleLLVMOptions.cmake
@@ -0,0 +1,135 @@
+include(AddLLVMDefinitions)
+
+if( LLVM_ENABLE_ASSERTIONS )
+ # MSVC doesn't like _DEBUG on release builds. See PR 4379.
+ if( NOT MSVC )
+ add_definitions( -D_DEBUG )
+ endif()
+ # On Release builds cmake automatically defines NDEBUG, so we
+ # explicitly undefine it:
+ if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
+ add_definitions( -UNDEBUG )
+ endif()
+else()
+ if( NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
+ add_definitions( -DNDEBUG )
+ endif()
+endif()
+
+if(WIN32)
+ if(CYGWIN)
+ set(LLVM_ON_WIN32 0)
+ set(LLVM_ON_UNIX 1)
+ else(CYGWIN)
+ set(LLVM_ON_WIN32 1)
+ set(LLVM_ON_UNIX 0)
+ endif(CYGWIN)
+ set(LTDL_SHLIB_EXT ".dll")
+ set(EXEEXT ".exe")
+ # Maximum path length is 160 for non-unicode paths
+ set(MAXPATHLEN 160)
+else(WIN32)
+ if(UNIX)
+ set(LLVM_ON_WIN32 0)
+ set(LLVM_ON_UNIX 1)
+ if(APPLE)
+ set(LTDL_SHLIB_EXT ".dylib")
+ else(APPLE)
+ set(LTDL_SHLIB_EXT ".so")
+ endif(APPLE)
+ set(EXEEXT "")
+ # FIXME: Maximum path length is currently set to 'safe' fixed value
+ set(MAXPATHLEN 2024)
+ else(UNIX)
+ MESSAGE(SEND_ERROR "Unable to determine platform")
+ endif(UNIX)
+endif(WIN32)
+
+if( LLVM_ENABLE_PIC )
+ if( XCODE )
+ # Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
+ # know how to disable this, so just force ENABLE_PIC off for now.
+ message(WARNING "-fPIC not supported with Xcode.")
+ elseif( WIN32 )
+ # On Windows all code is PIC. MinGW warns if -fPIC is used.
+ else()
+ include(CheckCXXCompilerFlag)
+ check_cxx_compiler_flag("-fPIC" SUPPORTS_FPIC_FLAG)
+ if( SUPPORTS_FPIC_FLAG )
+ message(STATUS "Building with -fPIC")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
+ set(CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
+ else( SUPPORTS_FPIC_FLAG )
+ message(WARNING "-fPIC not supported.")
+ endif()
+ endif()
+endif()
+
+if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
+ # TODO: support other platforms and toolchains.
+ option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
+ if( LLVM_BUILD_32_BITS )
+ message(STATUS "Building 32 bits executables and libraries.")
+ add_llvm_definitions( -m32 )
+ list(APPEND CMAKE_EXE_LINKER_FLAGS -m32)
+ list(APPEND CMAKE_SHARED_LINKER_FLAGS -m32)
+ endif( LLVM_BUILD_32_BITS )
+endif( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
+
+if( MSVC )
+ include(ChooseMSVCCRT)
+
+ # Add definitions that make MSVC much less annoying.
+ add_llvm_definitions(
+ # For some reason MS wants to deprecate a bunch of standard functions...
+ -D_CRT_SECURE_NO_DEPRECATE
+ -D_CRT_SECURE_NO_WARNINGS
+ -D_CRT_NONSTDC_NO_DEPRECATE
+ -D_CRT_NONSTDC_NO_WARNINGS
+ -D_SCL_SECURE_NO_DEPRECATE
+ -D_SCL_SECURE_NO_WARNINGS
+
+ -wd4146 # Suppress 'unary minus operator applied to unsigned type, result still unsigned'
+ -wd4180 # Suppress 'qualifier applied to function type has no meaning; ignored'
+ -wd4224 # Suppress 'nonstandard extension used : formal parameter 'identifier' was previously defined as a type'
+ -wd4244 # Suppress ''argument' : conversion from 'type1' to 'type2', possible loss of data'
+ -wd4267 # Suppress ''var' : conversion from 'size_t' to 'type', possible loss of data'
+ -wd4275 # Suppress 'An exported class was derived from a class that was not exported.'
+ -wd4291 # Suppress ''declaration' : no matching operator delete found; memory will not be freed if initialization throws an exception'
+ -wd4345 # Suppress 'behavior change: an object of POD type constructed with an initializer of the form () will be default-initialized'
+ -wd4351 # Suppress 'new behavior: elements of array 'array' will be default initialized'
+ -wd4355 # Suppress ''this' : used in base member initializer list'
+ -wd4503 # Suppress ''identifier' : decorated name length exceeded, name was truncated'
+ -wd4624 # Suppress ''derived class' : destructor could not be generated because a base class destructor is inaccessible'
+ -wd4715 # Suppress ''function' : not all control paths return a value'
+ -wd4800 # Suppress ''type' : forcing value to bool 'true' or 'false' (performance warning)'
+ -wd4065 # Suppress 'switch statement contains 'default' but no 'case' labels'
+
+ -w14062 # Promote "enumerator in switch of enum is not handled" to level 1 warning.
+ )
+
+ # Enable warnings
+ if (LLVM_ENABLE_WARNINGS)
+ add_llvm_definitions( /W4 /Wall )
+ if (LLVM_ENABLE_PEDANTIC)
+ # No MSVC equivalent available
+ endif (LLVM_ENABLE_PEDANTIC)
+ endif (LLVM_ENABLE_WARNINGS)
+ if (LLVM_ENABLE_WERROR)
+ add_llvm_definitions( /WX )
+ endif (LLVM_ENABLE_WERROR)
+elseif( CMAKE_COMPILER_IS_GNUCXX )
+ if (LLVM_ENABLE_WARNINGS)
+ add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
+ if (LLVM_ENABLE_PEDANTIC)
+ add_llvm_definitions( -pedantic -Wno-long-long )
+ endif (LLVM_ENABLE_PEDANTIC)
+ endif (LLVM_ENABLE_WARNINGS)
+ if (LLVM_ENABLE_WERROR)
+ add_llvm_definitions( -Werror )
+ endif (LLVM_ENABLE_WERROR)
+endif( MSVC )
+
+add_llvm_definitions( -D__STDC_LIMIT_MACROS )
+add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
+
diff --git a/cmake/modules/LLVM.cmake b/cmake/modules/LLVM.cmake
index 4efc745..d610f3e 100644
--- a/cmake/modules/LLVM.cmake
+++ b/cmake/modules/LLVM.cmake
@@ -1,5 +1,7 @@
# This file provides information and services to the final user.
+set(LLVM_PACKAGE_VERSION @PACKAGE_VERSION@)
+
set(LLVM_COMMON_DEPENDS @LLVM_COMMON_DEPENDS@)
set(llvm_libs @llvm_libs@)
@@ -16,6 +18,13 @@
set(LLVM_NATIVE_ARCH @LLVM_NATIVE_ARCH@)
+set(LLVM_ENABLE_PIC @LLVM_ENABLE_PIC@)
+
+set(LLVM_ENABLE_THREADS @LLVM_ENABLE_THREADS)
+
+set(HAVE_LIBDL @HAVE_LIBDL@)
+set(HAVE_LIBPTHREAD @HAVE_LIBPTHREAD)
+
# We try to include using the current setting of CMAKE_MODULE_PATH,
# which suppossedly was filled by the user with the directory where
# this file was installed:
diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index c1a11b3..7383119 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -21,7 +21,8 @@
# The file in LLVM_TARGET_DEFINITIONS may be not in the current
# directory and local_tds may not contain it, so we must
# explicitly list it here:
- DEPENDS tblgen ${local_tds} ${global_tds} ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
+ DEPENDS ${LLVM_TABLEGEN_EXE} ${local_tds} ${global_tds}
+ ${LLVM_TARGET_DEFINITIONS_ABSOLUTE}
COMMENT "Building ${ofn}..."
)
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}