--- /dev/null
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic multilib-minimal
+
+DESCRIPTION="Libraries/utilities to handle ELF objects (drop in replacement for libelf)"
+HOMEPAGE="http://elfutils.org/"
+SRC_URI="https://sourceware.org/elfutils/ftp/${PV}/${P}.tar.bz2"
+
+LICENSE="|| ( GPL-2+ LGPL-3+ ) utils? ( GPL-3+ )"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="bzip2 lzma nls static-libs test +threads +utils valgrind"
+
+RDEPEND=">=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}]
+ bzip2? ( >=app-arch/bzip2-1.0.6-r4[${MULTILIB_USEDEP}] )
+ lzma? ( >=app-arch/xz-utils-5.0.5-r1[${MULTILIB_USEDEP}] )
+ !dev-libs/libelf"
+DEPEND="${RDEPEND}
+ valgrind? ( dev-util/valgrind )
+"
+BDEPEND="nls? ( sys-devel/gettext )
+ >=sys-devel/flex-2.5.4a
+ sys-devel/m4"
+
+RESTRICT="!test? ( test )"
+
+PATCHES=(
+ "${FILESDIR}"/${PN}-0.175-disable-biarch-test-PR24158.patch
+ "${FILESDIR}"/${PN}-0.177-disable-large.patch
+ "${FILESDIR}"/${PN}-0.179-PaX-support.patch
+)
+
+src_prepare() {
+ default
+
+ if ! use static-libs; then
+ sed -i -e '/^lib_LIBRARIES/s:=.*:=:' -e '/^%.os/s:%.o$::' lib{asm,dw,elf}/Makefile.in || die
+ fi
+ # https://sourceware.org/PR23914
+ sed -i 's:-Werror::' */Makefile.in || die
+}
+
+src_configure() {
+ use test && append-flags -g #407135
+ multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+ ECONF_SOURCE="${S}" econf \
+ $(use_enable nls) \
+ $(use_enable threads thread-safety) \
+ $(use_enable valgrind) \
+ --disable-debuginfod \
+ --program-prefix="eu-" \
+ --with-zlib \
+ $(use_with bzip2 bzlib) \
+ $(use_with lzma)
+}
+
+multilib_src_test() {
+ env LD_LIBRARY_PATH="${BUILD_DIR}/libelf:${BUILD_DIR}/libebl:${BUILD_DIR}/libdw:${BUILD_DIR}/libasm" \
+ LC_ALL="C" \
+ emake check VERBOSE=1
+}
+
+multilib_src_install_all() {
+ einstalldocs
+ dodoc NOTES
+ # These build quick, and are needed for most tests, so don't
+ # disable their building when the USE flag is disabled.
+ if ! use utils; then
+ rm -rf "${ED}"/usr/bin || die
+ fi
+}
--- /dev/null
+Add support for PaX ELF markings
+
+Patch by Kevin F. Quinn <kevquinn@gentoo.org>
+
+http://bugs.gentoo.org/115100
+
+--- a/libelf/elf.h
++++ b/libelf/elf.h
+@@ -721,6 +721,7 @@ typedef struct
+ #define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */
+ #define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */
+ #define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */
++#define PT_PAX_FLAGS 0x65041580 /* Indicates PaX flag markings */
+ #define PT_LOSUNW 0x6ffffffa
+ #define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */
+ #define PT_SUNWSTACK 0x6ffffffb /* Stack segment */
+--- a/src/elflint.c
++++ b/src/elflint.c
+@@ -4493,6 +4493,7 @@ only executables, shared objects, and core files can have program headers\n"));
+
+ if (phdr->p_type >= PT_NUM && phdr->p_type != PT_GNU_EH_FRAME
+ && phdr->p_type != PT_GNU_STACK && phdr->p_type != PT_GNU_RELRO
++ && phdr->p_type != PT_PAX_FLAGS
+ && phdr->p_type != PT_GNU_PROPERTY
+ /* Check for a known machine-specific type. */
+ && ebl_segment_type_name (ebl, phdr->p_type, NULL, 0) == NULL)