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[CMake] Abstract Config.h generation for Xcode

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This patch abstracts the generation of Config.h and creates a dummy project entry point to allow generation of LLDB's Config header without performing a full CMake configuration.

This will enable the Xcode project to generate LLDB's Config header.

llvm-svn: 301553
This commit is contained in:
Chris Bieneman 2017-04-27 16:04:26 +00:00
parent 5d790fc03c
commit 2246972ecc
4 changed files with 60 additions and 27 deletions
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13
lldb/CMakeLists.txt
View File

@ -1,8 +1,15 @@
cmake_minimum_required(VERSION 3.4.3)
include(cmake/modules/LLDBStandalone.cmake)
include(cmake/modules/LLDBConfig.cmake)
include(cmake/modules/AddLLDB.cmake)
# Add path for custom modules
set(CMAKE_MODULE_PATH
${CMAKE_MODULE_PATH}
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
)
include(LLDBStandalone)
include(LLDBConfig)
include(AddLLDB)
if (CMAKE_SYSTEM_NAME MATCHES "Windows|Android")
set(LLDB_DEFAULT_DISABLE_LIBEDIT 1)

14
lldb/cmake/XcodeHeaderGenerator/CMakeLists.txt Normal file
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@ -0,0 +1,14 @@
cmake_minimum_required(VERSION 3.4.3)
project(XcodeConfig C CXX)
set(CMAKE_MODULE_PATH
${CMAKE_MODULE_PATH}
"${CMAKE_CURRENT_SOURCE_DIR}/.."
"${CMAKE_CURRENT_SOURCE_DIR}/../modules"
)
set(LLDB_CONFIG_HEADER_INPUT
${CMAKE_CURRENT_SOURCE_DIR}/../../include/lldb/Host/Config.h.cmake)
include(LLDBGenerateConfig)

25
lldb/cmake/modules/LLDBConfig.cmake
View File

@ -1,7 +1,4 @@
include(CheckCXXSymbolExists)
include(CheckSymbolExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
set(LLDB_PROJECT_ROOT ${CMAKE_CURRENT_SOURCE_DIR})
set(LLDB_SOURCE_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/source")
@ -429,24 +426,4 @@ if ((CMAKE_SYSTEM_NAME MATCHES "Android") AND LLVM_BUILD_STATIC AND
endif()
find_package(Backtrace)
set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
check_symbol_exists(ppoll poll.h HAVE_PPOLL)
set(CMAKE_REQUIRED_DEFINITIONS)
check_symbol_exists(sigaction signal.h HAVE_SIGACTION)
include(CheckIncludeFile)
check_include_file(termios.h HAVE_TERMIOS_H)
check_include_files("sys/types.h;sys/event.h" HAVE_SYS_EVENT_H)
# These checks exist in LLVM's configuration, so I want to match the LLVM names
# so that the check isn't duplicated, but we translate them into the LLDB names
# so that I don't have to change all the uses at the moment.
set(LLDB_CONFIG_TERMIOS_SUPPORTED ${HAVE_TERMIOS_H})
if(NOT UNIX)
set(LLDB_DISABLE_POSIX 1)
endif()
# This should be done at the end
configure_file(
${LLDB_INCLUDE_ROOT}/lldb/Host/Config.h.cmake
${CMAKE_CURRENT_BINARY_DIR}/include/lldb/Host/Config.h)
include(LLDBGenerateConfig)

35
lldb/cmake/modules/LLDBGenerateConfig.cmake Normal file
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@ -0,0 +1,35 @@
# This file contains all the logic for running configure-time checks
include(CheckSymbolExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
check_symbol_exists(ppoll poll.h HAVE_PPOLL)
set(CMAKE_REQUIRED_DEFINITIONS)
check_symbol_exists(sigaction signal.h HAVE_SIGACTION)
check_include_file(termios.h HAVE_TERMIOS_H)
check_include_files("sys/types.h;sys/event.h" HAVE_SYS_EVENT_H)
# These checks exist in LLVM's configuration, so I want to match the LLVM names
# so that the check isn't duplicated, but we translate them into the LLDB names
# so that I don't have to change all the uses at the moment.
set(LLDB_CONFIG_TERMIOS_SUPPORTED ${HAVE_TERMIOS_H})
if(NOT UNIX)
set(LLDB_DISABLE_POSIX 1)
endif()
if(NOT LLDB_CONFIG_HEADER_INPUT)
set(LLDB_CONFIG_HEADER_INPUT ${LLDB_INCLUDE_ROOT}/lldb/Host/Config.h.cmake)
endif()
if(NOT LLDB_CONFIG_HEADER_OUTPUT)
set(LLDB_CONFIG_HEADER_OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/include/lldb/Host/Config.h)
endif()
# This should be done at the end
configure_file(
${LLDB_CONFIG_HEADER_INPUT}
${LLDB_CONFIG_HEADER_OUTPUT}
)