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Create config.h

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This commit is contained in:
Rui Ueyama 2022-10-22 14:30:12 +08:00
parent 7db72a871c
commit 0d7a5a7284
5 changed files with 15 additions and 15 deletions
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18
CMakeLists.txt
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@ -57,8 +57,6 @@ endif()
add_executable(mold)
target_compile_features(mold PRIVATE cxx_std_20)
target_compile_definitions(mold PRIVATE
"LIBDIR=\"${CMAKE_INSTALL_FULL_LIBDIR}\"")
target_link_libraries(mold PRIVATE ${CMAKE_DL_LIBS})
if(NOT "${CMAKE_CXX_COMPILER_FRONTEND_VARIANT}" STREQUAL "MSVC")
@ -223,9 +221,6 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(riscv64|armv6)")
target_link_libraries(mold PRIVATE atomic)
endif()
set_property(SOURCE main.cc APPEND PROPERTY
COMPILE_DEFINITIONS "MOLD_VERSION=\"${CMAKE_PROJECT_VERSION}\"")
# Create a .cc file containing the current git hash for `mold --version`.
add_custom_target(git_hash
COMMAND ${CMAKE_COMMAND}
@ -238,6 +233,10 @@ add_custom_target(git_hash
add_dependencies(mold git_hash)
# Create config.h file
configure_file(config.h.in config.h)
include_directories(${CMAKE_CURRENT_BINARY_DIR})
# Almost all functions are template in mold which take a target type
# (e.g. X86_64) as its type parameter. Since we suport more than 10
# targets, compiling a single source file for all the targets is very
@ -331,10 +330,11 @@ target_sources(mold PRIVATE
)
# Add frequently included header files for pre-compiling.
if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.16.0") # for target_precompile_headers
target_precompile_headers(mold PRIVATE
"$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_SOURCE_DIR}/elf/mold.h>"
"$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_SOURCE_DIR}/macho/mold.h>")
# target_precompile_headers is supported by CMake 3.16.0 or newer.
if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.16.0")
target_precompile_headers(mold PRIVATE
"$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_SOURCE_DIR}/elf/mold.h>"
"$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_SOURCE_DIR}/macho/mold.h>")
endif()
include(CTest)

2
config.h.in Normal file
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@ -0,0 +1,2 @@
#define MOLD_VERSION "@mold_VERSION@"
#define MOLD_LIBDIR "@CMAKE_INSTALL_FULL_LIBDIR@"

7
elf/subprocess.cc
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@ -1,6 +1,7 @@
#if !defined(_WIN32) && !defined(__APPLE__)
#include "mold.h"
#include "config.h"
#include <filesystem>
#include <signal.h>
@ -66,13 +67,11 @@ static std::string find_dso(Context<E> &ctx, std::filesystem::path self) {
if (std::filesystem::is_regular_file(path, ec) && !ec)
return path;
#ifdef LIBDIR
// If not found, search $(LIBDIR)/mold, which is /usr/local/lib/mold
// If not found, search $(MOLD_LIBDIR)/mold, which is /usr/local/lib/mold
// by default.
path = LIBDIR "/mold/mold-wrapper.so";
path = MOLD_LIBDIR "/mold/mold-wrapper.so";
if (std::filesystem::is_regular_file(path, ec) && !ec)
return path;
#endif
// Look for ../lib/mold/mold-wrapper.so
path = self.parent_path() / "../lib/mold/mold-wrapper.so";

1
main.cc
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@ -1,4 +1,5 @@
#include "mold.h"
#include "config.h"
#include <cstring>
#include <filesystem>

2
update-git-hash.cmake
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@ -1,5 +1,3 @@
cmake_minimum_required(VERSION 3.9)
# Get a git hash value. We do not want to use git command here
# because we don't want to make git a build-time dependency.
if(EXISTS "${SOURCE_DIR}/.git/HEAD")