sys-apps/kexec-tools: fix building against GCC 10

Closes: https://bugs.gentoo.org/707132
Package-Manager: Portage-2.3.99, Repoman-2.3.22
Signed-off-by: Thomas Deutschmann <whissi@gentoo.org>

2 files changed, 188 insertions, 0 deletions

diff --git a/sys-apps/kexec-tools/files/kexec-tools-2.0.20-remove-duplicated-variable-declarations.patch b/sys-apps/kexec-tools/files/kexec-tools-2.0.20-remove-duplicated-variable-declarations.patch
new file mode 100644
index 000000000000..d71e76b3d632
--- /dev/null
+++ b/sys-apps/kexec-tools/files/kexec-tools-2.0.20-remove-duplicated-variable-declarations.patch
@@ -0,0 +1,99 @@
+From cc087b11462af9f971a2c090d07e8d780a867b50 Mon Sep 17 00:00:00 2001
+From: Kairui Song <kasong@redhat.com>
+Date: Wed, 29 Jan 2020 13:38:19 +0800
+Subject: kexec-tools: Remove duplicated variable declarations
+
+When building kexec-tools for Fedora 32, following error is observed:
+
+/usr/bin/ld: kexec/arch/x86_64/kexec-bzImage64.o:(.bss+0x0): multiple definition of `bzImage_support_efi_boot';
+kexec/arch/i386/kexec-bzImage.o:(.bss+0x0): first defined here
+
+/builddir/build/BUILD/kexec-tools-2.0.20/kexec/arch/arm/../../fs2dt.h:33: multiple definition of `my_debug';
+kexec/fs2dt.o:/builddir/build/BUILD/kexec-tools-2.0.20/kexec/fs2dt.h:33: first defined here
+
+/builddir/build/BUILD/kexec-tools-2.0.20/kexec/arch/arm64/kexec-arm64.h:68: multiple definition of `arm64_mem';
+kexec/fs2dt.o:/builddir/build/BUILD/kexec-tools-2.0.20/././kexec/arch/arm64/kexec-arm64.h:68: first defined here
+
+/builddir/build/BUILD/kexec-tools-2.0.20/kexec/arch/arm64/kexec-arm64.h:54: multiple definition of `initrd_size';
+kexec/fs2dt.o:/builddir/build/BUILD/kexec-tools-2.0.20/././kexec/arch/arm64/kexec-arm64.h:54: first defined here
+
+/builddir/build/BUILD/kexec-tools-2.0.20/kexec/arch/arm64/kexec-arm64.h:53: multiple definition of `initrd_base';
+kexec/fs2dt.o:/builddir/build/BUILD/kexec-tools-2.0.20/././kexec/arch/arm64/kexec-arm64.h:53: first defined here
+
+And apparently, these variables are wrongly declared multiple times. So
+remove duplicated declaration.
+
+Signed-off-by: Kairui Song <kasong@redhat.com>
+Signed-off-by: Simon Horman <horms@verge.net.au>
+---
+ kexec/arch/arm64/kexec-arm64.h      | 6 +++---
+ kexec/arch/ppc64/kexec-elf-ppc64.c  | 2 --
+ kexec/arch/x86_64/kexec-bzImage64.c | 1 -
+ kexec/fs2dt.h                       | 2 +-
+ 4 files changed, 4 insertions(+), 7 deletions(-)
+
+diff --git a/kexec/arch/arm64/kexec-arm64.h b/kexec/arch/arm64/kexec-arm64.h
+index 628de79..ed447ac 100644
+--- a/kexec/arch/arm64/kexec-arm64.h
++++ b/kexec/arch/arm64/kexec-arm64.h
+@@ -50,8 +50,8 @@ int zImage_arm64_load(int argc, char **argv, const char *kernel_buf,
+ void zImage_arm64_usage(void);
+ 
+ 
+-off_t initrd_base;
+-off_t initrd_size;
++extern off_t initrd_base;
++extern off_t initrd_size;
+ 
+ /**
+  * struct arm64_mem - Memory layout info.
+@@ -65,7 +65,7 @@ struct arm64_mem {
+ };
+ 
+ #define arm64_mem_ngv UINT64_MAX
+-struct arm64_mem arm64_mem;
++extern struct arm64_mem arm64_mem;
+ 
+ uint64_t get_phys_offset(void);
+ uint64_t get_vp_offset(void);
+diff --git a/kexec/arch/ppc64/kexec-elf-ppc64.c b/kexec/arch/ppc64/kexec-elf-ppc64.c
+index 3510b70..695b8b0 100644
+--- a/kexec/arch/ppc64/kexec-elf-ppc64.c
++++ b/kexec/arch/ppc64/kexec-elf-ppc64.c
+@@ -44,8 +44,6 @@
+ uint64_t initrd_base, initrd_size;
+ unsigned char reuse_initrd = 0;
+ const char *ramdisk;
+-/* Used for enabling printing message from purgatory code */
+-int my_debug = 0;
+ 
+ int elf_ppc64_probe(const char *buf, off_t len)
+ {
+diff --git a/kexec/arch/x86_64/kexec-bzImage64.c b/kexec/arch/x86_64/kexec-bzImage64.c
+index 8edb3e4..ba8dc48 100644
+--- a/kexec/arch/x86_64/kexec-bzImage64.c
++++ b/kexec/arch/x86_64/kexec-bzImage64.c
+@@ -42,7 +42,6 @@
+ #include <arch/options.h>
+ 
+ static const int probe_debug = 0;
+-int bzImage_support_efi_boot;
+ 
+ int bzImage64_probe(const char *buf, off_t len)
+ {
+diff --git a/kexec/fs2dt.h b/kexec/fs2dt.h
+index 7633273..fe24931 100644
+--- a/kexec/fs2dt.h
++++ b/kexec/fs2dt.h
+@@ -30,7 +30,7 @@ extern struct bootblock bb[1];
+ 
+ /* Used for enabling printing message from purgatory code
+  * Only has implemented for PPC64 */
+-int my_debug;
++extern int my_debug;
+ extern int dt_no_old_root;
+ 
+ void reserve(unsigned long long where, unsigned long long length);
+-- 
+cgit 1.2-0.3.lf.el7
+
diff --git a/sys-apps/kexec-tools/kexec-tools-2.0.20-r1.ebuild b/sys-apps/kexec-tools/kexec-tools-2.0.20-r1.ebuild
new file mode 100644
index 000000000000..7fd2e6f2679e
--- /dev/null
+++ b/sys-apps/kexec-tools/kexec-tools-2.0.20-r1.ebuild
@@ -0,0 +1,89 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic libtool linux-info systemd
+
+if [[ ${PV} == "9999" ]] ; then
+	inherit git-r3 autotools
+	EGIT_REPO_URI="https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git"
+else
+	SRC_URI="https://www.kernel.org/pub/linux/utils/kernel/kexec/${P/_/-}.tar.xz"
+	[[ "${PV}" == *_rc* ]] || \
+	KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
+fi
+
+DESCRIPTION="Load another kernel from the currently executing Linux kernel"
+HOMEPAGE="https://kernel.org/pub/linux/utils/kernel/kexec/"
+
+LICENSE="GPL-2"
+SLOT="0"
+IUSE="booke lzma xen zlib"
+
+REQUIRED_USE="lzma? ( zlib )"
+
+DEPEND="
+	lzma? ( app-arch/xz-utils )
+	zlib? ( sys-libs/zlib )"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}/${P/_/-}"
+
+CONFIG_CHECK="~KEXEC"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.0.4-disable-kexec-test.patch
+	"${FILESDIR}"/${PN}-2.0.4-out-of-source.patch
+	"${FILESDIR}"/${P}-remove-duplicated-variable-declarations.patch
+)
+
+pkg_setup() {
+	# GNU Make's $(COMPILE.S) passes ASFLAGS to $(CCAS), CCAS=$(CC)
+	export ASFLAGS="${CCASFLAGS}"
+}
+
+src_prepare() {
+	default
+	if [[ "${PV}" == 9999 ]] ; then
+		eautoreconf
+	else
+		elibtoolize
+	fi
+	filter-flags '-mindirect-branch=thunk*'
+}
+
+src_configure() {
+	local myeconfargs=(
+		$(use_with booke)
+		$(use_with lzma)
+		$(use_with xen)
+		$(use_with zlib)
+	)
+	econf "${myeconfargs[@]}"
+}
+
+src_install() {
+	default
+
+	dodoc "${FILESDIR}"/README.Gentoo
+
+	newinitd "${FILESDIR}"/kexec.init-2.0.13-r1 kexec
+	newconfd "${FILESDIR}"/kexec.conf-2.0.4 kexec
+
+	insinto /etc
+	doins "${FILESDIR}"/kexec.conf
+
+	insinto /etc/kernel/postinst.d
+	doins "${FILESDIR}"/90_kexec
+
+	systemd_dounit "${FILESDIR}"/kexec.service
+}
+
+pkg_postinst() {
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		elog "For systemd support the new config file is"
+		elog "   /etc/kexec.conf"
+		elog "Please adopt it to your needs as there is no autoconfig anymore"
+	fi
+}