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From 6676553c56ac1879d8d597351b457ba2e087168c Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Thu, 19 May 2016 23:11:45 -0700
Subject: [PATCH 3/4] Simplify cross-compilation. Don't use native-compiled
llvm-config.
Note: AddLLVM.cmake does not expose the LLVM source directory.
So if you want to run the test suite, you need to either:
1) set LLVM_MAIN_SRC_DIR explicitly (to find lit.py)
2) change AddLLVM.cmake to point to an installed 'lit'.
3) add_subdirectory(compiler-rt/test) from clang instead of compiler-rt.
https://us.codeaurora.org/patches/quic/llvm/50683/compiler-rt-cross-compilation.patch
Signed-off-by: Greg Fitzgerald <gregf@codeaurora.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
CMakeLists.txt | 32 ++++++--------------------------
1 file changed, 6 insertions(+), 26 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a067581..ce904c0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,32 +39,12 @@ option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
if (COMPILER_RT_STANDALONE_BUILD)
- if (NOT LLVM_CONFIG_PATH)
- find_program(LLVM_CONFIG_PATH "llvm-config"
- DOC "Path to llvm-config binary")
- if (NOT LLVM_CONFIG_PATH)
- message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH")
- endif()
- endif()
- execute_process(
- COMMAND ${LLVM_CONFIG_PATH} "--obj-root" "--bindir" "--libdir" "--src-root"
- RESULT_VARIABLE HAD_ERROR
- OUTPUT_VARIABLE CONFIG_OUTPUT)
- if (HAD_ERROR)
- message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
- endif()
- string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT})
- list(GET CONFIG_OUTPUT 0 LLVM_BINARY_DIR)
- list(GET CONFIG_OUTPUT 1 LLVM_TOOLS_BINARY_DIR)
- list(GET CONFIG_OUTPUT 2 LLVM_LIBRARY_DIR)
- list(GET CONFIG_OUTPUT 3 LLVM_MAIN_SRC_DIR)
-
- # Make use of LLVM CMake modules.
- file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE)
- set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm")
- list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
- # Get some LLVM variables from LLVMConfig.
- include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
+ find_package(LLVM REQUIRED)
+ list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_DIR}")
+
+ # Variables that AddLLVM.cmake depends on (included by AddCompilerRT)
+ set(LLVM_TOOLS_BINARY_DIR "${LLVM_INSTALL_PREFIX}/bin")
+ set(LLVM_LIBRARY_DIR "${LLVM_INSTALL_PREFIX}/lib")
set(LLVM_LIBRARY_OUTPUT_INTDIR
${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
--
2.9.0
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