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# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack import *
class Xpmem(AutotoolsPackage):
"""XPMEM is a Linux kernel module that enables a process to map the memory
of another process into its virtual address space."""
# The README file of the repository says that the development was
# transferred to a new repository on GitLab: http://gitlab.com/hjelmn/xpmem
# However, it looks like that the repository on GitHub has a more recent
# version of the codebase.
homepage = "https://github.com/hjelmn/xpmem"
url = "https://github.com/hjelmn/xpmem/archive/v2.6.3.tar.gz"
git = "https://github.com/hjelmn/xpmem.git"
maintainers = ['skosukhin']
version('master', branch='master')
# Versions starting 2.6.4 are neither tagged nor released in the repo
# (the choice of commits is based on the commit history of
# 'kernel/xpmem_private.h'):
version('2.6.5-36', commit='0d0bad4e1d07b38d53ecc8f20786bb1328c446da')
version('2.6.5', commit='4efeed9cbaabe971f3766d67cb108e2c3316d4b8')
version('2.6.4', commit='522054850e4d1479d69f50f7190d1548bf9749fd')
# Released versions:
version('2.6.3', sha256='ee239a32269f33234cdbdb94db29c12287862934c0784328d34aff82a9fa8b54')
version('2.6.2', sha256='2c1a93b4cb20ed73c2093435a7afec513e0e797aa1e49d4d964cc6bdae89d65b')
variant('kernel-module', default=True,
description='Enable building the kernel module')
# Added RHEL 8.3 kernel support
# Here 2.6.5-36 referes to 2.6.5 version and 36th commit id
patch('xpmem_v2.6.5-36.patch', when="@2.6.5-36", level=1)
depends_on('autoconf', type='build')
depends_on('automake', type='build')
depends_on('libtool', type='build')
depends_on('m4', type='build')
# It will become possible to disable the kernel module only starting 2.6.6:
# https://github.com/hjelmn/xpmem/pull/24
conflicts('~kernel-module', when='@:2.6.5')
# Ideally, we should list all non-Linux-based platforms here:
conflicts('+kernel-module', when='platform=darwin')
# All compilers except for gcc are in conflict with +kernel-module:
for __compiler in spack.compilers.supported_compilers():
if __compiler != 'gcc':
conflicts('+kernel-module',
when='%{0}'.format(__compiler),
msg='Linux kernel module must be compiled with gcc')
def autoreconf(self, spec, prefix):
Executable('./autogen.sh')()
@run_before('build')
def override_kernel_compiler(self):
# Override the compiler for kernel module source files. We need
# this additional argument for all installation phases.
if '+kernel-module' in self.spec:
make.add_default_arg('CC={0}'.format(spack_cc))
def configure_args(self):
args = []
if '~kernel-module' in self.spec:
# The kernel module is enabled by default. An attempt of explicit
# enabling with '--enable-kernel-module' disables the module.
args.extend('--disable-kernel-module')
if self.spec.satisfies('@:2.6.5'):
fmt = self.spec.format
# The following arguments will not be needed starting 2.6.6:
# https://github.com/hjelmn/xpmem/pull/18
args.extend([
fmt('--with-default-prefix={prefix}'),
fmt('--with-module={prefix.share}/Modules/{name}/{version}')])
return args
@when('@:2.6.5')
def install(self, spec, prefix):
with working_dir(self.build_directory):
# Override the hardcoded prefix for 'cray-xpmem.conf'
make('ldsoconfdir={0}'.format(
self.spec.prefix.etc.join('ld.so.conf.d')),
*self.install_targets)
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