llvm-libunwind/0001-libunwind-standalone-build.patch
2023-02-20 09:53:37 +08:00

75 lines
2.8 KiB
Diff

From 2d99b052457b78753313704338a9edbb1561ab36 Mon Sep 17 00:00:00 2001
From: wangzehong <wangzehong2@huawei.com>
Date: Thu, 16 Feb 2023 16:48:37 +0800
Subject: [PATCH] modify to standalone build
---
CMakeLists.txt | 34 +++++++++++++++++++++++++++++-----
docs/CMakeLists.txt | 1 +
2 files changed, 30 insertions(+), 5 deletions(-)
diff --git a/libunwind-12.0.1.src/CMakeLists.txt b/libunwind-12.0.1.src/CMakeLists.txt
index 570b8db..14e1b11 100644
--- a/libunwind-12.0.1.src/CMakeLists.txt
+++ b/libunwind-12.0.1.src/CMakeLists.txt
@@ -1,6 +1,3 @@
-if (NOT IS_DIRECTORY "${CMAKE_CURRENT_LIST_DIR}/../libcxx")
- message(FATAL_ERROR "libunwind requires being built in a monorepo layout with libcxx available")
-endif()
#===============================================================================
# Setup Project
@@ -37,9 +34,36 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBUNWIND_STANDALONE_B
# the configurator should write the script into.
set(LIBUNWIND_STANDALONE_BUILD 1)
set(LLVM_LIT_OUTPUT_DIR "${LIBUNWIND_BINARY_DIR}/bin")
+ 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()
+
+ execute_process(COMMAND "${LLVM_CONFIG_PATH}"
+ "--obj-root"
+ "--includedir"
+ "--cmakedir"
+ "--src-root"
+ RESULT_VARIABLE HAD_ERROR
+ OUTPUT_VARIABLE LLVM_CONFIG_OUTPUT
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ if(HAD_ERROR)
+ message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
+ endif()
+
+ string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" LLVM_CONFIG_OUTPUT "${LLVM_CONFIG_OUTPUT}")
+
+ list(GET LLVM_CONFIG_OUTPUT 0 OBJ_ROOT)
+ list(GET LLVM_CONFIG_OUTPUT 1 MAIN_INCLUDE_DIR)
+ list(GET LLVM_CONFIG_OUTPUT 2 LLVM_CMAKE_PATH)
+ list(GET LLVM_CONFIG_OUTPUT 3 MAIN_SRC_DIR)
+
+ if(NOT EXISTS "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
+ message(FATAL_ERROR "LLVMConfig.cmake not found")
+ endif()
+ include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
- # Find the LLVM sources and simulate LLVM CMake options.
- include(HandleOutOfTreeLLVM)
+ list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
else()
set(LLVM_LIT "${CMAKE_SOURCE_DIR}/utils/lit/lit.py")
endif()
diff --git a/libunwind-12.0.1.src/docs/CMakeLists.txt b/libunwind-12.0.1.src/docs/CMakeLists.txt
index c226f2f..17fb075 100644
--- a/libunwind-12.0.1.src/docs/CMakeLists.txt
+++ b/libunwind-12.0.1.src/docs/CMakeLists.txt
@@ -2,6 +2,7 @@ include(FindSphinx)
if (SPHINX_FOUND)
include(AddSphinxTarget)
+ include(AddLLVM)
if (${SPHINX_OUTPUT_HTML})
add_sphinx_target(html libunwind)
endif()
endif()
--
2.33.1.windows.1