diff options
-rw-r--r-- | CMakeLists.txt | 49 | ||||
-rw-r--r-- | lib/CMakeLists.txt | 28 | ||||
-rw-r--r-- | lib/asan/CMakeLists.txt | 12 |
3 files changed, 89 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 000000000..9bdd9726d --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,49 @@ +# CMake build for CompilerRT. +# +# This build assumes that CompilerRT is checked out into the +# 'projects/compiler-rt' inside of an LLVM tree, it is not a stand-alone build +# system. +# +# An important constraint of the build is that it only produces libraries +# based on the ability of the host toolchain to target various platforms. + +include(LLVMParseArguments) + +# FIXME: Below we assume that the target build of LLVM/Clang is x86, which is +# not at all valid. Much of this can be fixed just by switching to use +# a just-built-clang binary for the compiles. + +# Detect whether the current target platform is 32-bit or 64-bit, and setup +# the correct commandline flags needed to attempt to target 32-bit and 64-bit. +if(CMAKE_SIZEOF_VOID_P EQUAL 4) + set(TARGET_X86_64_CFLAGS "-m64") + set(TARGET_I386_CFLAGS "") +else() + if(NOT CMAKE_SIZEOF_VOID_P EQUAL 8) + message(FATAL_ERROR "Please use a sane architecture with 4 or 8 byte pointers.") + endif() + set(TARGET_X86_64_CFLAGS "") + set(TARGET_I386_CFLAGS "-m32") +endif() + +# Try to compile a very simple source file to ensure we can target the given +# platform. We use the results of these tests to build only the various target +# runtime libraries supported by our current compilers cross-compiling +# abilities. +set(SIMPLE_SOURCE64 ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/simple64.c) +file(WRITE ${SIMPLE_SOURCE64} "#include <stdlib.h>\nint main() {}") +try_compile(CAN_TARGET_X86_64 ${CMAKE_BINARY_DIR} ${SIMPLE_SOURCE64} + COMPILE_DEFINITIONS "${TARGET_X86_64_CFLAGS}" + CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS:STRING=${TARGET_X86_64_CFLAGS}") + +set(SIMPLE_SOURCE32 ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/simple32.c) +file(WRITE ${SIMPLE_SOURCE32} "#include <stdlib.h>\nint main() {}") +try_compile(CAN_TARGET_I386 ${CMAKE_BINARY_DIR} ${SIMPLE_SOURCE32} + COMPILE_DEFINITIONS "${TARGET_I386_CFLAGS}" + CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS:STRING=${TARGET_I386_CFLAGS}") + +add_subdirectory(lib) + +if(LLVM_INCLUDE_TESTS) + add_subdirectory(test) +endif() diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt new file mode 100644 index 000000000..433e0af71 --- /dev/null +++ b/lib/CMakeLists.txt @@ -0,0 +1,28 @@ +# The top-level lib directory contains a large amount of C code which provides +# generic implementations of the core runtime library along with optimized +# architecture-specific code in various subdirectories. + +file(GLOB GENERIC_SOURCES . "*.c") + +# FIXME: We don't currently support building an atomic library, and as it must +# be a separate library from the runtime library, we need to remove its source +# code from the glob. +file(GLOB ATOMIC . "atomic.c") +list(REMOVE_ITEM GENERIC_SOURCES ${ATOMIC}) + +if(CAN_TARGET_X86_64) + file(GLOB X86_64_SOURCES . "*.c" "*.S") + add_library(clang_rt.x86_64 STATIC ${X86_64_SOURCES} ${GENERIC_SOURCES}) + set_target_properties(clang_rt.x86_64 PROPERTIES COMPILE_FLAGS "${TARGET_X86_64_CFLAGS}") +endif() +if(CAN_TARGET_I386) + file(GLOB I386_SOURCES . "*.c" "*.S") + add_library(clang_rt.i386 STATIC ${I386_SOURCES} ${GENERIC_SOURCES}) + set_target_properties(clang_rt.i386 PROPERTIES COMPILE_FLAGS "${TARGET_I386_CFLAGS}") +endif() + +# Also support building feature-based runtime libraries in their various +# subdircetories. +add_subdirectory(asan) + +# FIXME: Add support for the profile library. diff --git a/lib/asan/CMakeLists.txt b/lib/asan/CMakeLists.txt new file mode 100644 index 000000000..76bb1d8e2 --- /dev/null +++ b/lib/asan/CMakeLists.txt @@ -0,0 +1,12 @@ +# Build for the AddressSanitizer runtime support library. + +file(GLOB ASAN_SOURCES "*.cc") + +if(CAN_TARGET_X86_64) + add_library(clang_rt.asan-x86_64 STATIC ${ASAN_SOURCES}) + set_target_properties(clang_rt.asan-x86_64 PROPERTIES COMPILE_FLAGS "${TARGET_X86_64_CFLAGS}") +endif() +if(CAN_TARGET_I386) + add_library(clang_rt.asan-i386 STATIC ${ASAN_SOURCES}) + set_target_properties(clang_rt.asan-i386 PROPERTIES COMPILE_FLAGS "${TARGET_I386_CFLAGS}") +endif() |