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# Copyright 2013-2022 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.package import *
class Libunwind(AutotoolsPackage):
"""A portable and efficient C programming interface (API) to determine
the call-chain of a program."""
homepage = "https://www.nongnu.org/libunwind/"
url = "http://download.savannah.gnu.org/releases/libunwind/libunwind-1.1.tar.gz"
git = "https://github.com/libunwind/libunwind"
maintainers = ['mwkrentel']
version('master', branch='master')
version('1.6-stable', branch='v1.6-stable')
version('1.6.2', sha256='4a6aec666991fb45d0889c44aede8ad6eb108071c3554fcdff671f9c94794976')
version('1.5-stable', branch='v1.5-stable')
version('1.5.0', sha256='90337653d92d4a13de590781371c604f9031cdb50520366aa1e3a91e1efb1017')
version('1.4.0', sha256='df59c931bd4d7ebfd83ee481c943edf015138089b8e50abed8d9c57ba9338435')
version('1.3.1', sha256='43997a3939b6ccdf2f669b50fdb8a4d3205374728c2923ddc2354c65260214f8')
version('1.2.1', sha256='3f3ecb90e28cbe53fba7a4a27ccce7aad188d3210bb1964a923a731a27a75acb')
version('1.1', sha256='9dfe0fcae2a866de9d3942c66995e4b460230446887dbdab302d41a8aee8d09a',
deprecated=True)
variant('docs', default=True, description='Build man page')
variant('libs', default='shared,static', values=('shared', 'static'),
multi=True, description='Build shared libs, static libs or both')
variant('pic', default=False,
description='Compile with position independent code.')
variant('tests', default=True, description='Build tests')
variant('block_signals', default=False,
description='Block signals before performing mutex operations')
variant('components',
values=any_combination_of('coredump', 'ptrace', 'setjump'),
description='Build specified libunwind libraries')
variant('conservative_checks', default=False,
description='Validate all memory addresses before use')
variant('cxx_exceptions', default=False,
description='Use libunwind to handle C++ exceptions')
variant('debug', default=False,
description='Turn on debug support (slows down execution)')
variant('debug_frame', default=False,
description='Load the ".debug_frame" section if available')
variant('weak_backtrace', default=True,
description="Provide the weak 'backtrace' symbol")
variant('xz', default=False,
description='Support xz (lzma) compressed symbol tables.')
variant('zlib', default=False,
description='Support zlib compressed symbol tables '
'(1.5 and later).')
# The libunwind releases contain the autotools generated files,
# but the git repo snapshots do not.
reconf_versions = '@master,1.5-stable,1.6-stable'
depends_on('autoconf', type='build', when=reconf_versions)
depends_on('automake', type='build', when=reconf_versions)
depends_on('libtool', type='build', when=reconf_versions)
depends_on('m4', type='build', when=reconf_versions)
depends_on('xz', type='link', when='+xz')
depends_on('zlib', type='link', when='+zlib')
conflicts('platform=darwin',
msg='Non-GNU libunwind needs ELF libraries Darwin does not have')
provides('unwind')
def flag_handler(self, name, flags):
wrapper_flags = []
if name == 'cflags':
# https://github.com/libunwind/libunwind/pull/166
if (self.spec.satisfies('@:1.4 %gcc@10:') or
self.spec.satisfies('@:1.4 %cce@11:') or
self.spec.satisfies('@:1.4 %clang@11:')):
wrapper_flags.append('-fcommon')
if '+pic' in self.spec:
wrapper_flags.append(self.compiler.cc_pic_flag)
return (wrapper_flags, None, flags)
def configure_args(self):
spec = self.spec
args = []
args += self.enable_or_disable('documentation', variant='docs')
args += self.enable_or_disable('libs')
args += self.enable_or_disable('tests')
args += self.enable_or_disable('block-signals', variant='block_signals')
args += self.enable_or_disable('components')
args += self.enable_or_disable('conservative-checks',
variant='conservative_checks')
args += self.enable_or_disable('cxx-exceptions', variant='cxx_exceptions')
args += self.enable_or_disable('debug')
args += self.enable_or_disable('debug-frame', variant='debug_frame')
args += self.enable_or_disable('minidebuginfo', variant='xz')
# building without weak backtrace symbol is possible in 1.5.x and later
if self.spec.satisfies('@1.5:'):
args += self.enable_or_disable('weak-backtrace', variant='weak_backtrace')
# zlib support is available in 1.5.x and later
if spec.satisfies('@1.5:'):
args += self.enable_or_disable('zlibdebuginfo', variant='zlib')
return args
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