Add SHA256 hashes of LLVM downloads and check them when downloading LLVM

This commit is contained in:
Daan De Meyer 2018-03-18 23:57:26 +01:00 committed by Fangrui Song
parent 193d42ea78
commit 25094bc70d
9 changed files with 43 additions and 14 deletions

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@ -12,13 +12,8 @@ set(CLANG_ARCHIVE_EXT .tar.xz)
if(${CMAKE_SYSTEM_NAME} STREQUAL Linux)
if(${CLANG_VERSION} STREQUAL 5.0.0)
set(CLANG_ARCHIVE_NAME
clang+llvm-${CLANG_VERSION}-linux-x86_64-ubuntu14.04)
else()
set(CLANG_ARCHIVE_NAME
clang+llvm-${CLANG_VERSION}-x86_64-linux-gnu-ubuntu-14.04)
endif()
set(CLANG_ARCHIVE_NAME
clang+llvm-${CLANG_VERSION}-x86_64-linux-gnu-ubuntu-14.04)
elseif(${CMAKE_SYSTEM_NAME} STREQUAL Darwin)
@ -39,8 +34,8 @@ elseif(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
endif()
if(NOT CLANG_ARCHIVE_NAME)
message(FATAL_ERROR "No download available for ${CMAKE_SYSTEM_NAME} + \
${CLANG_VERSION}")
message(FATAL_ERROR "No LLVM archive url specified for current platform \
(${CMAKE_SYSTEM_NAME}). Please file an issue to get it added.")
endif()
set(CLANG_ARCHIVE_FULL_NAME ${CLANG_ARCHIVE_NAME}${CLANG_ARCHIVE_EXT})
@ -48,10 +43,36 @@ 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})
set(CLANG_ARCHIVE_HASH_FILE
${CMAKE_SOURCE_DIR}/clang_archive_hashes/${CLANG_ARCHIVE_FULL_NAME}.SHA256)
if(NOT EXISTS ${CLANG_ARCHIVE_HASH_FILE})
message(FATAL_ERROR "No SHA256 hash available for the current platform \
(${CMAKE_SYSTEM_NAME}) + clang version (${CLANG_VERSION}) combination. Please \
file an issue to get it added.")
endif()
file(READ ${CLANG_ARCHIVE_HASH_FILE} CLANG_ARCHIVE_EXPECTED_HASH)
# Strip newline
string(STRIP ${CLANG_ARCHIVE_EXPECTED_HASH} CLANG_ARCHIVE_EXPECTED_HASH)
if(NOT EXISTS ${CLANG_ARCHIVE_FILE})
message(STATUS "Downloading LLVM ${CLANG_VERSION} (${CLANG_ARCHIVE_URL}) ...")
file(DOWNLOAD ${CLANG_ARCHIVE_URL} ${CLANG_ARCHIVE_FILE})
file(DOWNLOAD ${CLANG_ARCHIVE_URL} ${CLANG_ARCHIVE_FILE}
STATUS CLANG_ARCHIVE_DOWNLOAD_RESULT)
list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 0 ERROR_CODE)
if(${ERROR_CODE})
list(GET ${CLANG_ARCHIVE_DOWNLOAD_RESULT} 1 ERROR_STRING)
message(FATAL_ERROR ${ERROR_STRING})
endif()
endif()
file(SHA256 ${CLANG_ARCHIVE_FILE} CLANG_ARCHIVE_HASH)
if(NOT ${CLANG_ARCHIVE_EXPECTED_HASH} STREQUAL ${CLANG_ARCHIVE_HASH})
message(FATAL_ERROR "SHA256 hash of downloaded LLVM does not match \
expected hash. Remove the build directory and try running CMake again. If this \
keeps happening, file an issue to report the problem.")
endif()
if(NOT EXISTS ${CLANG_ARCHIVE_EXTRACT_DIR})