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# Copyright 2005-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
MY_PV=${PV/_/-}
MY_P=${PN}-${MY_PV}
inherit autotools flag-o-matic libtool multilib-minimal
DESCRIPTION="Portable and efficient API to determine the call-chain of a program"
HOMEPAGE="https://savannah.nongnu.org/projects/libunwind"
SRC_URI="mirror://nongnu/libunwind/${MY_P}.tar.gz"
LICENSE="MIT"
SLOT="0/8" # libunwind.so.8
KEYWORDS="amd64 arm arm64 hppa ~ia64 ~mips ppc ppc64 -riscv -sparc x86 ~amd64-linux ~x86-linux"
IUSE="debug debug-frame doc libatomic lzma static-libs zlib"
RESTRICT="test" # some tests are broken (toolchain version dependent, rely on external binaries)
# We just use the header from libatomic.
RDEPEND="
lzma? ( app-arch/xz-utils[static-libs?,${MULTILIB_USEDEP}] )
zlib? ( sys-libs/zlib[static-libs?,${MULTILIB_USEDEP}] )
"
DEPEND="${RDEPEND}
libatomic? ( dev-libs/libatomic_ops[${MULTILIB_USEDEP}] )"
S="${WORKDIR}/${MY_P}"
MULTILIB_WRAPPED_HEADERS=(
/usr/include/libunwind.h
# see libunwind.h for the full list of arch-specific headers
/usr/include/libunwind-aarch64.h
/usr/include/libunwind-arm.h
/usr/include/libunwind-hppa.h
/usr/include/libunwind-ia64.h
/usr/include/libunwind-mips.h
/usr/include/libunwind-ppc32.h
/usr/include/libunwind-ppc64.h
/usr/include/libunwind-sh.h
/usr/include/libunwind-tilegx.h
/usr/include/libunwind-x86.h
/usr/include/libunwind-x86_64.h
)
PATCHES=(
"${FILESDIR}"/${PN}-1.2-coredump-regs.patch #586092
"${FILESDIR}"/${PN}-1.2-ia64-ptrace-coredump.patch
"${FILESDIR}"/${PN}-1.2-ia64-missing.patch
"${FILESDIR}"/${PN}-1.5.0-x32.patch
# needs refresh:
#"${FILESDIR}"/${PN}-1.2.1-only-include-execinfo_h-if-avaliable.patch
)
src_prepare() {
default
chmod +x src/ia64/mk_cursor_i || die
# Since we have tests disabled via RESTRICT, disable building in the subdir
# entirely. This works around some build errors too. #484846
sed -i -e '/^SUBDIRS/s:tests::' Makefile.in || die
elibtoolize
eautoreconf
# Let's wait for proper fix upstream in https://github.com/libunwind/libunwind/issues/154
# Meanwhile workaround for gcc-10 with -fcommon, bug #706560
append-cflags -fcommon
}
multilib_src_configure() {
# --enable-cxx-exceptions: always enable it, headers provide the interface
# and on some archs it is disabled by default causing a mismatch between the
# API and the ABI, bug #418253
# conservative-checks: validate memory addresses before use; as of 1.0.1,
# only x86_64 supports this, yet may be useful for debugging, couple it with
# debug useflag.
ECONF_SOURCE="${S}" \
ac_cv_header_atomic_ops_h=$(usex libatomic) \
econf \
--enable-cxx-exceptions \
--enable-coredump \
--enable-ptrace \
--enable-setjmp \
$(use_enable debug-frame) \
$(use_enable doc documentation) \
$(use_enable lzma minidebuginfo) \
$(use_enable static-libs static) \
$(use_enable zlib zlibdebuginfo) \
$(use_enable debug conservative_checks) \
$(use_enable debug)
}
multilib_src_compile() {
# Bug 586208
CCACHE_NODIRECT=1 default
}
multilib_src_test() {
# Explicitly allow parallel build of tests.
# Sandbox causes some tests to freak out.
SANDBOX_ON=0 emake check
}
multilib_src_install_all() {
find "${D}" -name "*.la" -type f -delete || die
}
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