mirror of
https://github.com/MaskRay/ccls.git
synced 2024-11-24 08:35:08 +00:00
105 lines
3.7 KiB
CMake
105 lines
3.7 KiB
CMake
# Downloads and extracts the LLVM archive for the current system from
|
|
# https://releases.llvm.org
|
|
#
|
|
# Returns the extracted LLVM archive directory in DOWNLOADED_CLANG_DIR
|
|
#
|
|
# Downloads 7-Zip to extract LLVM if it isn't available in the PATH
|
|
function(download_and_extract_llvm CLANG_VERSION)
|
|
|
|
include(DownloadAndExtract7zip)
|
|
|
|
set(CLANG_ARCHIVE_EXT .tar.xz)
|
|
|
|
if(${CMAKE_SYSTEM_NAME} STREQUAL Linux)
|
|
|
|
set(CLANG_ARCHIVE_NAME
|
|
clang+llvm-${CLANG_VERSION}-x86_64-linux-gnu-ubuntu-14.04)
|
|
|
|
elseif(${CMAKE_SYSTEM_NAME} STREQUAL Darwin)
|
|
|
|
set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-x86_64-apple-darwin)
|
|
|
|
elseif(${CMAKE_SYSTEM_NAME} STREQUAL Windows)
|
|
|
|
set(CLANG_ARCHIVE_NAME LLVM-${CLANG_VERSION}-win64)
|
|
set(CLANG_ARCHIVE_EXT .exe)
|
|
|
|
elseif(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
|
|
|
|
# 6.0.0 uses freebsd-10 while 5.0.1 uses freebsd10
|
|
set(CLANG_ARCHIVE_NAME clang+llvm-${CLANG_VERSION}-amd64-unknown-freebsd-10)
|
|
|
|
endif()
|
|
|
|
set(CLANG_ARCHIVE_FULL_NAME ${CLANG_ARCHIVE_NAME}${CLANG_ARCHIVE_EXT})
|
|
set(CLANG_ARCHIVE_FILE ${CMAKE_BINARY_DIR}/${CLANG_ARCHIVE_FULL_NAME})
|
|
set(CLANG_ARCHIVE_EXTRACT_DIR ${CMAKE_BINARY_DIR}/${CLANG_ARCHIVE_NAME})
|
|
set(CLANG_ARCHIVE_URL
|
|
https://releases.llvm.org/${CLANG_VERSION}/${CLANG_ARCHIVE_FULL_NAME})
|
|
|
|
if(NOT EXISTS ${CLANG_ARCHIVE_FILE})
|
|
message(STATUS "Downloading LLVM ${CLANG_VERSION} (${CLANG_ARCHIVE_URL}) ...")
|
|
file(DOWNLOAD ${CLANG_ARCHIVE_URL} ${CLANG_ARCHIVE_FILE})
|
|
endif()
|
|
|
|
if(NOT EXISTS ${CLANG_ARCHIVE_EXTRACT_DIR})
|
|
if(${CLANG_ARCHIVE_EXT} STREQUAL .exe)
|
|
find_program(7ZIP_EXECUTABLE 7z)
|
|
|
|
if(NOT 7ZIP_EXECUTABLE)
|
|
message(STATUS "7-Zip not found in PATH")
|
|
download_and_extract_7zip()
|
|
find_program(7ZIP_EXECUTABLE 7z NO_DEFAULT_PATH
|
|
PATHS ${DOWNLOADED_7ZIP_DIR})
|
|
else()
|
|
message(STATUS "7-Zip found in PATH")
|
|
endif()
|
|
|
|
message(STATUS "Extracting downloaded LLVM with 7-Zip ...")
|
|
|
|
# Avoid running the LLVM installer by extracting the exe with 7-Zip
|
|
execute_process(COMMAND ${7ZIP_EXECUTABLE} x
|
|
-o${CLANG_ARCHIVE_EXTRACT_DIR}
|
|
-xr!$PLUGINSDIR ${CLANG_ARCHIVE_FILE}
|
|
OUTPUT_QUIET)
|
|
elseif(${CLANG_ARCHIVE_EXT} STREQUAL .tar.xz)
|
|
message(STATUS "Extracting downloaded LLVM with CMake built-in tar ...")
|
|
# CMake has builtin support for tar via the -E flag
|
|
execute_process(COMMAND ${CMAKE_COMMAND} -E tar -xf ${CLANG_ARCHIVE_FILE}
|
|
OUTPUT_QUIET)
|
|
endif()
|
|
|
|
# There is a null pointer dereference issue in
|
|
# tools/libclang/CXIndexDataConsumer.cpp handleReference.
|
|
# https://github.com/cquery-project/cquery/issues/219
|
|
if(${CMAKE_SYSTEM_NAME} STREQUAL Linux AND
|
|
${CLANG_VERSION} MATCHES 4.0.0|5.0.1)
|
|
message(STATUS "Patching downloaded LLVM (see \
|
|
https://github.com/cquery-project/cquery/issues/219)")
|
|
|
|
if(${CLANG_VERSION} STREQUAL 4.0.0)
|
|
# 4289205 = $[0x4172b5] (we use decimals for seek since execute_process
|
|
# does not evaluate $[] bash syntax)
|
|
execute_process(COMMAND printf \\x4d
|
|
COMMAND dd
|
|
of=${CLANG_ARCHIVE_EXTRACT_DIR}/lib/libclang.so.4.0
|
|
obs=1 seek=4289205 conv=notrunc
|
|
OUTPUT_QUIET)
|
|
|
|
elseif(${CLANG_VERSION} STREQUAL 5.0.1)
|
|
# 4697806 = $[0x47aece]
|
|
execute_process(COMMAND printf \\x4d
|
|
COMMAND dd
|
|
of=${CLANG_ARCHIVE_EXTRACT_DIR}/lib/libclang.so.5.0
|
|
obs=1 seek=4697806 conv=notrunc
|
|
OUTPUT_QUIET)
|
|
endif()
|
|
endif()
|
|
endif()
|
|
|
|
# CMake functions have no return values so we just lift our return variable to
|
|
# the parent scope
|
|
set(DOWNLOADED_CLANG_DIR ${CLANG_ARCHIVE_EXTRACT_DIR} PARENT_SCOPE)
|
|
|
|
endfunction()
|