mirror of
https://github.com/RPCS3/llvm.git
synced 2024-11-30 23:21:04 +00:00
Bump minimum toolchain version
Summary: The RFC on moving past C++11 got good traction: http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html This patch therefore bumps the toolchain versions according to our policy: llvm.org/docs/DeveloperPolicy.html#toolchain Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, mehdi_amini, jyknight, rsmith, chandlerc, smeenai, hans, reames, lattner, lhames, erichkeane Differential Revision: https://reviews.llvm.org/D57264 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@352834 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
JF Bastien
parent
94f8110769
commit
67afd3256e
@ -383,9 +383,12 @@ option(LLVM_ENABLE_EXPENSIVE_CHECKS "Enable expensive checks" OFF)
|
||||
set(LLVM_ABI_BREAKING_CHECKS "WITH_ASSERTS" CACHE STRING
|
||||
"Enable abi-breaking checks. Can be WITH_ASSERTS, FORCE_ON or FORCE_OFF.")
|
||||
|
||||
option(LLVM_FORCE_USE_OLD_HOST_TOOLCHAIN
|
||||
option(LLVM_FORCE_USE_OLD_TOOLCHAIN
|
||||
"Set to ON to force using an old, unsupported host toolchain." OFF)
|
||||
|
||||
option(LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN
|
||||
"Set to ON to only warn when using a toolchain which is about to be deprecated, instead of emitting an error." OFF)
|
||||
|
||||
option(LLVM_USE_INTEL_JITEVENTS
|
||||
"Use Intel JIT API to inform Intel(R) VTune(TM) Amplifier XE 2011 about JIT code"
|
||||
OFF)
|
||||
|
||||
@ -5,13 +5,18 @@
|
||||
include(CheckCXXSourceCompiles)
|
||||
|
||||
set(GCC_MIN 4.8)
|
||||
set(GCC_WARN 4.8)
|
||||
set(GCC_SOFT_ERROR 5.1)
|
||||
set(CLANG_MIN 3.1)
|
||||
set(CLANG_WARN 3.1)
|
||||
set(CLANG_SOFT_ERROR 3.5)
|
||||
set(APPLECLANG_MIN 3.1)
|
||||
set(APPLECLANG_WARN 3.1)
|
||||
set(MSVC_MIN 19.0)
|
||||
set(MSVC_WARN 19.00.24213.1)
|
||||
set(APPLECLANG_SOFT_ERROR 6.0)
|
||||
set(MSVC_MIN 19.00.24213.1)
|
||||
set(MSVC_SOFT_ERROR 19.1)
|
||||
|
||||
# Map the above GCC versions to dates: https://gcc.gnu.org/develop.html#timeline
|
||||
set(GCC_MIN_DATE 20130322)
|
||||
set(GCC_SOFT_ERROR_DATE 20150422)
|
||||
|
||||
|
||||
if(DEFINED LLVM_COMPILER_CHECKED)
|
||||
return()
|
||||
@ -22,21 +27,25 @@ if(LLVM_FORCE_USE_OLD_TOOLCHAIN)
|
||||
return()
|
||||
endif()
|
||||
|
||||
function(check_compiler_version NAME NICE_NAME MINIMUM_VERSION WARN_VERSION)
|
||||
function(check_compiler_version NAME NICE_NAME MINIMUM_VERSION SOFT_ERROR_VERSION)
|
||||
if(NOT CMAKE_CXX_COMPILER_ID STREQUAL NAME)
|
||||
return()
|
||||
endif()
|
||||
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS MINIMUM_VERSION)
|
||||
message(FATAL_ERROR "Host ${NICE_NAME} version must be at least ${MINIMUM_VERSION}, your version is ${CMAKE_CXX_COMPILER_VERSION}.")
|
||||
elseif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS WARN_VERSION)
|
||||
message(WARNING "Host ${NICE_NAME} version must be at least ${WARN_VERSION} due to miscompiles from earlier versions, your version is ${CMAKE_CXX_COMPILER_VERSION}.")
|
||||
elseif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS SOFT_ERROR_VERSION)
|
||||
if(LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN)
|
||||
message(WARNING "Host ${NICE_NAME} version should be at least ${SOFT_ERROR_VERSION} because LLVM will soon use new C++ features which your toolchain version doesn't support. Your version is ${CMAKE_CXX_COMPILER_VERSION}. Ignoring because you've set LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN, but very soon your toolchain won't be supported.")
|
||||
else()
|
||||
message(FATAL_ERROR "Host ${NICE_NAME} version should be at least ${SOFT_ERROR_VERSION} because LLVM will soon use new C++ features which your toolchain version doesn't support. Your version is ${CMAKE_CXX_COMPILER_VERSION}. You can temporarily opt out using LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN, but very soon your toolchain won't be supported.")
|
||||
endif()
|
||||
endif()
|
||||
endfunction(check_compiler_version)
|
||||
|
||||
check_compiler_version("GNU" "GCC" ${GCC_MIN} ${GCC_WARN})
|
||||
check_compiler_version("Clang" "Clang" ${CLANG_MIN} ${CLANG_WARN})
|
||||
check_compiler_version("AppleClang" "Apple Clang" ${APPLECLANG_MIN} ${APPLECLANG_WARN})
|
||||
check_compiler_version("MSVC" "Visual Studio" ${MSVC_MIN} ${MSVC_WARN})
|
||||
check_compiler_version("GNU" "GCC" ${GCC_MIN} ${GCC_SOFT_ERROR})
|
||||
check_compiler_version("Clang" "Clang" ${CLANG_MIN} ${CLANG_SOFT_ERROR})
|
||||
check_compiler_version("AppleClang" "Apple Clang" ${APPLECLANG_MIN} ${APPLECLANG_SOFT_ERROR})
|
||||
check_compiler_version("MSVC" "Visual Studio" ${MSVC_MIN} ${MSVC_SOFT_ERROR})
|
||||
|
||||
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
||||
if (CMAKE_CXX_SIMULATE_ID MATCHES "MSVC")
|
||||
@ -45,20 +54,46 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
||||
endif()
|
||||
set(CLANG_CL 1)
|
||||
elseif(NOT LLVM_ENABLE_LIBCXX)
|
||||
# Test that we aren't using too old of a version of libstdc++
|
||||
# with the Clang compiler. This is tricky as there is no real way to
|
||||
# check the version of libstdc++ directly. Instead we test for a known
|
||||
# bug in libstdc++4.6 that is fixed in libstdc++4.7.
|
||||
# Test that we aren't using too old of a version of libstdc++.
|
||||
set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
|
||||
set(OLD_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
|
||||
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -std=c++0x")
|
||||
check_cxx_source_compiles("
|
||||
#include <atomic>
|
||||
std::atomic<float> x(0.0f);
|
||||
int main() { return (float)x; }"
|
||||
LLVM_NO_OLD_LIBSTDCXX)
|
||||
if(NOT LLVM_NO_OLD_LIBSTDCXX)
|
||||
message(FATAL_ERROR "Host Clang must be able to find libstdc++4.8 or newer!")
|
||||
#include <iosfwd>
|
||||
#ifndef __GLIBCXX__
|
||||
#error libstdc++ is too old or cannot be found
|
||||
#endif
|
||||
int main() { return 0; }
|
||||
"
|
||||
LLVM_NO_LIBSTDCXX)
|
||||
if(NOT LLVM_NO_LIBSTDCXX)
|
||||
message(FATAL_ERROR "libstdc++ is too old or cannot be found")
|
||||
endif()
|
||||
check_cxx_source_compiles("
|
||||
#include <iosfwd>
|
||||
#if __GLIBCXX__ < ${GCC_MIN_DATE}
|
||||
#error Unsupported libstdc++ version
|
||||
#endif
|
||||
int main() { return 0; }
|
||||
"
|
||||
LLVM_LIBSTDCXX_MIN)
|
||||
if(NOT LLVM_LIBSTDCXX_MIN)
|
||||
message(FATAL_ERROR "libstdc++ version must be at least ${GCC_MIN}.")
|
||||
endif()
|
||||
check_cxx_source_compiles("
|
||||
#include <iosfwd>
|
||||
#if __GLIBCXX__ < ${GCC_SOFT_ERROR_DATE}
|
||||
#error Unsupported libstdc++ version
|
||||
#endif
|
||||
int main() { return 0; }
|
||||
"
|
||||
LLVM_LIBSTDCXX_SOFT_ERROR)
|
||||
if(NOT LLVM_LIBSTDCXX_SOFT_ERROR)
|
||||
if(LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN)
|
||||
message(WARNING "libstdc++ version should be at least ${GCC_SOFT_ERROR} because LLVM will soon use new C++ features which your toolchain version doesn't support. Ignoring because you've set LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN, but very soon your toolchain won't be supported.")
|
||||
else()
|
||||
message(FATAL_ERROR "libstdc++ version should be at least ${GCC_SOFT_ERROR} because LLVM will soon use new C++ features which your toolchain version doesn't support. You can temporarily opt out using LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN, but very soon your toolchain won't be supported.")
|
||||
endif()
|
||||
endif()
|
||||
set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
|
||||
set(CMAKE_REQUIRED_LIBRARIES ${OLD_CMAKE_REQUIRED_LIBRARIES})
|
||||
|
||||
@ -578,6 +578,10 @@ LLVM-specific variables
|
||||
may not compile at all, or might fail at runtime due to known bugs in these
|
||||
toolchains.
|
||||
|
||||
**LLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN**:BOOL
|
||||
If enabled, the compiler version check will only warn when using a toolchain
|
||||
which is about to be deprecated, instead of emitting an error.
|
||||
|
||||
CMake Caches
|
||||
============
|
||||
|
||||
|
||||
@ -170,7 +170,7 @@ uses the package and provides other details.
|
||||
Package Version Notes
|
||||
=========================================================== ============ ==========================================
|
||||
`GNU Make <http://savannah.gnu.org/projects/make>`_ 3.79, 3.79.1 Makefile/build processor
|
||||
`GCC <http://gcc.gnu.org/>`_ >=4.8.0 C/C++ compiler\ :sup:`1`
|
||||
`GCC <http://gcc.gnu.org/>`_ >=5.1.0 C/C++ compiler\ :sup:`1`
|
||||
`python <http://www.python.org/>`_ >=2.7 Automated test suite\ :sup:`2`
|
||||
`zlib <http://zlib.net>`_ >=1.2.3.4 Compression library\ :sup:`3`
|
||||
=========================================================== ============ ==========================================
|
||||
@ -228,6 +228,15 @@ LLVM is written using the subset of C++ documented in :doc:`coding
|
||||
standards<CodingStandards>`. To enforce this language version, we check the most
|
||||
popular host toolchains for specific minimum versions in our build systems:
|
||||
|
||||
* Clang 3.5
|
||||
* Apple Clang 6.0
|
||||
* GCC 5.1
|
||||
* Visual Studio 2017
|
||||
|
||||
The below versions currently soft-error as we transition to the new compiler
|
||||
versions listed above. The LLVM codebase is currently known to compile correctly
|
||||
with the following compilers, though this will change in the near future:
|
||||
|
||||
* Clang 3.1
|
||||
* Apple Clang 3.1
|
||||
* GCC 4.8
|
||||
@ -283,33 +292,36 @@ The first step is to get a recent GCC toolchain installed. The most common
|
||||
distribution on which users have struggled with the version requirements is
|
||||
Ubuntu Precise, 12.04 LTS. For this distribution, one easy option is to install
|
||||
the `toolchain testing PPA`_ and use it to install a modern GCC. There is
|
||||
a really nice discussions of this on the `ask ubuntu stack exchange`_. However,
|
||||
not all users can use PPAs and there are many other distributions, so it may be
|
||||
necessary (or just useful, if you're here you *are* doing compiler development
|
||||
after all) to build and install GCC from source. It is also quite easy to do
|
||||
these days.
|
||||
a really nice discussions of this on the `ask ubuntu stack exchange`_ and a
|
||||
`github gist`_ with updated commands. However, not all users can use PPAs and
|
||||
there are many other distributions, so it may be necessary (or just useful, if
|
||||
you're here you *are* doing compiler development after all) to build and install
|
||||
GCC from source. It is also quite easy to do these days.
|
||||
|
||||
.. _toolchain testing PPA:
|
||||
https://launchpad.net/~ubuntu-toolchain-r/+archive/test
|
||||
.. _ask ubuntu stack exchange:
|
||||
http://askubuntu.com/questions/271388/how-to-install-gcc-4-8-in-ubuntu-12-04-from-the-terminal
|
||||
https://askubuntu.com/questions/466651/how-do-i-use-the-latest-gcc-on-ubuntu/581497#58149
|
||||
.. _github gist:
|
||||
https://gist.github.com/application2000/73fd6f4bf1be6600a2cf9f56315a2d91
|
||||
|
||||
Easy steps for installing GCC 4.8.2:
|
||||
Easy steps for installing GCC 5.1.0:
|
||||
|
||||
.. code-block:: console
|
||||
|
||||
% wget https://ftp.gnu.org/gnu/gcc/gcc-4.8.2/gcc-4.8.2.tar.bz2
|
||||
% wget https://ftp.gnu.org/gnu/gcc/gcc-4.8.2/gcc-4.8.2.tar.bz2.sig
|
||||
% gcc_version=5.1.0
|
||||
% wget https://ftp.gnu.org/gnu/gcc/gcc-${gcc_version}/gcc-${gcc_version}.tar.bz2
|
||||
% wget https://ftp.gnu.org/gnu/gcc/gcc-${gcc_version}/gcc-${gcc_version}.tar.bz2.sig
|
||||
% wget https://ftp.gnu.org/gnu/gnu-keyring.gpg
|
||||
% signature_invalid=`gpg --verify --no-default-keyring --keyring ./gnu-keyring.gpg gcc-4.8.2.tar.bz2.sig`
|
||||
% signature_invalid=`gpg --verify --no-default-keyring --keyring ./gnu-keyring.gpg gcc-${gcc_version}.tar.bz2.sig`
|
||||
% if [ $signature_invalid ]; then echo "Invalid signature" ; exit 1 ; fi
|
||||
% tar -xvjf gcc-4.8.2.tar.bz2
|
||||
% cd gcc-4.8.2
|
||||
% tar -xvjf gcc-${gcc_version}.tar.bz2
|
||||
% cd gcc-${gcc_version}
|
||||
% ./contrib/download_prerequisites
|
||||
% cd ..
|
||||
% mkdir gcc-4.8.2-build
|
||||
% cd gcc-4.8.2-build
|
||||
% $PWD/../gcc-4.8.2/configure --prefix=$HOME/toolchains --enable-languages=c,c++
|
||||
% mkdir gcc-${gcc_version}-build
|
||||
% cd gcc-${gcc_version}-build
|
||||
% $PWD/../gcc-${gcc_version}/configure --prefix=$HOME/toolchains --enable-languages=c,c++
|
||||
% make -j$(nproc)
|
||||
% make install
|
||||
|
||||
@ -317,7 +329,7 @@ For more details, check out the excellent `GCC wiki entry`_, where I got most
|
||||
of this information from.
|
||||
|
||||
.. _GCC wiki entry:
|
||||
http://gcc.gnu.org/wiki/InstallingGCC
|
||||
https://gcc.gnu.org/wiki/InstallingGCC
|
||||
|
||||
Once you have a GCC toolchain, configure your build of LLVM to use the new
|
||||
toolchain for your host compiler and C++ standard library. Because the new
|
||||
|
||||
Loading…
Reference in New Issue
Block a user