Initial commit

package/boot/kexec-tools/Config.in

@@ -0,0 +1,14 @@
+menu "Configuration"
+	depends on PACKAGE_kexec
+
+config KEXEC_ZLIB
+	bool
+	prompt "zlib support"
+	default y
+
+config KEXEC_LZMA
+	bool
+	prompt "lzma support"
+	default n
+
+endmenu

package/boot/kexec-tools/Makefile

@@ -0,0 +1,132 @@
+#
+# Copyright (C) 2006-2012 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=kexec-tools
+PKG_VERSION:=2.0.28
+PKG_RELEASE:=2
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
+PKG_SOURCE_URL:=@KERNEL/linux/utils/kernel/kexec
+PKG_HASH:=d2f0ef872f39e2fe4b1b01feb62b0001383207239b9f8041f98a95564161d053
+
+PKG_CONFIG_DEPENDS := CONFIG_KEXEC_ZLIB CONFIG_KEXEC_LZMA
+
+PKG_BUILD_FLAGS:=gc-sections
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/kexec-tools/Default
+  SECTION:=utils
+  CATEGORY:=Utilities
+  URL:=http://kernel.org/pub/linux/kernel/people/horms/kexec-tools/
+endef
+
+define Package/kexec-tools
+  $(call Package/kexec-tools/Default)
+  TITLE:=kexec-tools transition meta package
+  DEPENDS:=+kexec
+endef
+
+define Package/kexec-tools/description
+ kexec is a set of system calls that allows you to load
+ another kernel from the currently executing Linux kernel.
+ The kexec utility allows to load and boot another kernel.
+endef
+
+define Package/kexec
+  $(call Package/kexec-tools/Default)
+  TITLE:=Kernel boots kernel
+  DEPENDS:=\
+	@(armeb||arm||i386||x86_64||powerpc64||mipsel||mips) \
+	+KEXEC_ZLIB:zlib +KEXEC_LZMA:liblzma @KERNEL_KEXEC
+endef
+
+define Package/kexec/description
+ The kexec utility allows to load and boot another kernel.
+endef
+
+define Package/kdump
+  $(call Package/kexec-tools/Default)
+  TITLE:=Kernel crash analysis
+  DEPENDS:=+kexec @(i386||x86_64||arm) @KERNEL_CRASH_DUMP
+endef
+
+define Package/kdump/description
+ The kdump package allows to automatically boot into a
+ special kernel for analyzing kernel crashes using kdump.
+endef
+
+define Package/kexec/config
+	source "$(SOURCE)/Config.in"
+endef
+
+KEXEC_TARGET_NAME:=$(ARCH)-linux-$(TARGET_SUFFIX)
+
+CONFIGURE_ARGS = \
+		--target=$(KEXEC_TARGET_NAME) \
+		--host=$(REAL_GNU_TARGET_NAME) \
+		--build=$(GNU_HOST_NAME) \
+		--program-prefix="" \
+		--program-suffix="" \
+		--prefix=/usr \
+		--exec-prefix=/usr \
+		--bindir=/usr/bin \
+		--sbindir=/usr/sbin \
+		--libexecdir=/usr/lib \
+		--sysconfdir=/etc \
+		$(if $(CONFIG_KEXEC_ZLIB),--with,--without)-zlib \
+		$(if $(CONFIG_KEXEC_LZMA),--with,--without)-lzma \
+		TARGET_LD="$(TARGET_CROSS)ld"
+
+CONFIGURE_VARS += \
+	BUILD_CC="$(HOSTCC)" \
+	TARGET_CC="$(TARGET_CC)"
+
+define Build/Compile
+	$(MAKE) -C $(PKG_BUILD_DIR) DESTDIR="$(PKG_INSTALL_DIR)" all install
+endef
+
+define Package/kexec-tools/install
+	:
+endef
+
+define Package/kexec/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/kexec $(1)/usr/sbin
+
+# make a link for compatability with other distros
+	$(INSTALL_DIR) $(1)/sbin
+	$(LN) ../usr/sbin/kexec $(1)/sbin/kexec
+endef
+
+define Package/kdump/install
+	$(INSTALL_DIR) $(1)/usr/sbin $(1)/etc/init.d $(1)/etc/config $(1)/etc/uci-defaults
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/vmcore-dmesg $(1)/usr/sbin
+	$(INSTALL_BIN) ./files/kdump.init $(1)/etc/init.d/kdump
+	$(INSTALL_BIN) ./files/kdump.defaults $(1)/etc/uci-defaults/kdump
+	$(INSTALL_CONF) ./files/kdump.config $(1)/etc/config/kdump
+endef
+
+define Package/kdump/prerm
+#!/bin/sh
+
+case $$(uname -m) in
+	i?86|x86_64)
+		if grep -q " crashkernel=" /boot/grub/grub.cfg; then
+			mount /boot -o remount,rw
+			sed -i 's/ crashkernel=[^ ]*//' /boot/grub/grub.cfg
+			mount /boot -o remount,ro
+		fi
+		;;
+esac
+endef
+
+$(eval $(call BuildPackage,kexec-tools))
+$(eval $(call BuildPackage,kexec))
+$(eval $(call BuildPackage,kdump))

package/boot/kexec-tools/files/kdump.config

@@ -0,0 +1,7 @@
+
+config kdump
+	option enabled '1'
+	option save_dmesg '1'
+	option save_vmcore '0'
+# using an external partition to store vmcore is highly recommended!
+#	option path '/mnt/crashdump'

package/boot/kexec-tools/files/kdump.defaults

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# kB disable if mem low than 256MB
+memtotal=`grep MemTotal /proc/meminfo | awk '{print $2}'`
+if test $memtotal -le 262144; then
+	exit 0
+fi
+KZ=128
+if test $memtotal -ge 8388608; then
+	KZ=512
+elif test $memtotal -ge 4194304; then
+	KZ=256
+fi
+
+case $(uname -m) in
+	i?86|x86_64)
+		if ! grep -q crashkernel /boot/grub/grub.cfg; then
+			mount /boot -o remount,rw
+			sed -i "s/linux.*/& crashkernel=${KZ}M/" /boot/grub/grub.cfg
+			mount /boot -o remount,ro
+		fi
+		;;
+esac

package/boot/kexec-tools/files/kdump.init

@@ -0,0 +1,186 @@
+#!/bin/sh /etc/rc.common
+
+START=41
+STOP=90
+
+BOOT_IMAGE=/boot/vmlinuz
+
+EXTRA_COMMANDS="status"
+EXTRA_HELP="        status  Print crashkernel status"
+
+verify_kdump() {
+	local cfg="$1"
+	local enabled
+	local path
+	local save_vmcore
+	local save_dmesg
+
+	config_get_bool enabled "$cfg" enabled 1
+	config_get_bool save_dmesg "$cfg" save_dmesg 1
+	config_get_bool save_vmcore "$cfg" save_vmcore 0
+
+	[ "$enabled" -gt 0 ] || return 2
+
+	[ "$save_dmesg" -gt 0 ] || [ "$save_vmcore" -gt 0 ] || return 2
+
+	config_get path "$cfg" path "/"
+
+	[ -d "$path" ] || mkdir -p "$path" 2>/dev/null || return 1
+}
+
+run_kdump() {
+	local cfg="$1"
+	local enabled
+	local path
+	local save_vmcore
+	local save_dmesg
+
+	config_get_bool enabled "$cfg" enabled 1
+	[ "$enabled" -gt 0 ] || return
+
+	config_get_bool save_dmesg "$cfg" save_dmesg 1
+	config_get_bool save_vmcore "$cfg" save_vmcore 0
+	config_get path "$cfg" path "/"
+
+	timestamp=$(date "+%Y%m%dT%H%M%S")
+
+	if [ "$save_vmcore" -eq 1 ]; then
+		echo -n "Saving vmcore (this may take a while)..."
+		# would like 'sparse' but busybox doesn't support it
+		dd if=/proc/vmcore of="$path/vmcore-$timestamp" conv=fsync bs=1M
+		echo " done"
+	fi
+
+	if [ "$save_dmesg" -eq 1 ]; then
+		vmcore-dmesg /proc/vmcore > "$path/dmesg-$timestamp"
+	fi
+
+	sync
+	reboot -f
+}
+
+find_kernel() {
+	. /lib/functions.sh
+	local kernel
+
+	kernel="$BOOT_IMAGE"
+	if [ -r "$kernel" ]; then
+		echo $kernel
+		return 0
+	fi
+
+	kernel="$(find_mtd_part kernel)"
+	if [ -r "$kernel" ]; then
+		echo $kernel
+		return 0
+	fi
+
+	for voldir in /sys/class/ubi/ubi*_*; do
+		[ ! -e "$voldir" ] && continue
+		if [ "$(cat "${voldir}/name")" = "kernel" ]; then
+			kernel="/dev/$(basename "$voldir")"
+			echo $kernel
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+load_crashkernel() {
+	local append_cmdline
+	local kernel
+
+	kernel="$(find_kernel)"
+	[ $? -gt 0 ] && return 1
+
+	case "$(uname -m)" in
+		i?86|x86_64)
+			grep -q "crashkernel=" /proc/cmdline || return 1
+			append_cmdline="1 irqpoll reset_devices maxcpus=1"
+			;;
+		arm*)
+			append_cmdline="1 maxcpus=1 reset_devices"
+			;;
+	esac
+	kexec -p "$kernel" --reuse-cmdline --append="$append_cmdline"
+	return $?
+}
+
+start() {
+	local retval
+
+	if [ ! -e /sys/kernel/kexec_crash_loaded ]; then
+		return 1
+	fi
+
+	if [ -e /proc/vmcore ]; then
+		config_load kdump
+		config_foreach run_kdump kdump
+	else
+		config_load kdump
+		config_foreach verify_kdump kdump
+		retval=$?
+		[ $retval = 1 ] && return 1
+		[ $retval = 0 ] && load_crashkernel
+		return $?
+	fi
+}
+
+stop() {
+	[ "$(cat /sys/kernel/kexec_crash_loaded)" = "1" ] || return
+
+	if [ -e "$BOOT_IMAGE" ]; then
+		kexec -p -u "$BOOT_IMAGE"
+	fi
+}
+
+status() {
+	local retval kernel
+
+	if [ ! -e /sys/kernel/kexec_crash_loaded ]; then
+		echo "crashdump not supported by kernel"
+		return
+	fi
+
+	if [ $(cat /sys/kernel/kexec_crash_size) -eq 0 ]; then
+		echo "memory for crashdump kernel not reserved!"
+		echo "check crashkernel= kernel cmdline parameter"
+		echo "(a reboot is required after installing kdump)"
+		return
+	fi
+
+	kernel="$(find_kernel)"
+	if [ $? -gt 0 ]; then
+		echo "cannot find kernel image"
+		return
+	else
+		echo "using kernel image $kernel"
+	fi
+
+	echo -n "kdump configuration is "
+	config_load kdump
+	retval=$?
+	if [ $retval = 0 ]; then
+		if [ "$(config_foreach echo kdump)" ]; then
+			config_foreach verify_kdump kdump
+			retval=$?
+		else
+			retval=1
+		fi
+	fi
+
+	if [ $retval = 0 ]; then
+		echo "valid"
+	elif [ $retval = 2 ]; then
+		echo "disabled"
+	else
+		echo "BROKEN"
+	fi
+
+	echo -n "kexec crash kernel "
+	if [ "$(cat /sys/kernel/kexec_crash_loaded)" = "0" ]; then
+		echo -n "not "
+	fi
+	echo "loaded"
+}

package/boot/kexec-tools/patches/010-Fix-building-on-x86_64-with-binutils-2.41.patch

@@ -0,0 +1,81 @@
+From 328de8e00e298f00d7ba6b25dc3950147e9642e6 Mon Sep 17 00:00:00 2001
+From: Michel Lind <salimma@fedoraproject.org>
+Date: Tue, 30 Jan 2024 04:14:31 -0600
+Subject: [PATCH] Fix building on x86_64 with binutils 2.41
+
+Newer versions of the GNU assembler (observed with binutils 2.41) will
+complain about the ".arch i386" in files assembled with "as --64",
+with the message "Error: 64bit mode not supported on 'i386'".
+
+Fix by moving ".arch i386" below the relevant ".code32" directive, so
+that the assembler is no longer expecting 64-bit instructions to be used
+by the time that the ".arch i386" directive is encountered.
+
+Based on similar iPXE fix:
+https://github.com/ipxe/ipxe/commit/6ca597eee
+
+Signed-off-by: Michel Lind <michel@michel-slm.name>
+Signed-off-by: Simon Horman <horms@kernel.org>
+---
+ purgatory/arch/i386/entry32-16-debug.S | 2 +-
+ purgatory/arch/i386/entry32-16.S       | 2 +-
+ purgatory/arch/i386/entry32.S          | 2 +-
+ purgatory/arch/i386/setup-x86.S        | 2 +-
+ 4 files changed, 4 insertions(+), 4 deletions(-)
+
+--- a/purgatory/arch/i386/entry32-16-debug.S
++++ b/purgatory/arch/i386/entry32-16-debug.S
+@@ -25,10 +25,10 @@
+ 	.globl entry16_debug_pre32
+ 	.globl entry16_debug_first32
+ 	.globl entry16_debug_old_first32
+-	.arch i386
+ 	.balign 16
+ entry16_debug:
+ 	.code32
++	.arch i386
+ 	/* Compute where I am running at (assumes esp valid) */
+ 	call	1f
+ 1:	popl	%ebx
+--- a/purgatory/arch/i386/entry32-16.S
++++ b/purgatory/arch/i386/entry32-16.S
+@@ -20,10 +20,10 @@
+ #undef i386	
+ 	.text
+ 	.globl entry16, entry16_regs
+-	.arch i386
+ 	.balign 16
+ entry16:
+ 	.code32
++	.arch i386
+ 	/* Compute where I am running at (assumes esp valid) */
+ 	call	1f
+ 1:	popl	%ebx
+--- a/purgatory/arch/i386/entry32.S
++++ b/purgatory/arch/i386/entry32.S
+@@ -20,10 +20,10 @@
+ #undef i386
+ 
+ 	.text
+-	.arch	i386
+ 	.globl entry32, entry32_regs
+ entry32:
+ 	.code32
++	.arch	i386
+ 
+ 	/* Setup a gdt that should that is generally usefully */
+ 	lgdt	%cs:gdt
+--- a/purgatory/arch/i386/setup-x86.S
++++ b/purgatory/arch/i386/setup-x86.S
+@@ -21,10 +21,10 @@
+ #undef i386
+ 
+ 	.text
+-	.arch	i386
+ 	.globl purgatory_start
+ purgatory_start:
+ 	.code32
++	.arch	i386
+ 
+ 	/* Load a gdt so I know what the segment registers are */
+ 	lgdt	%cs:gdt

package/boot/kexec-tools/patches/020-i386-improve-basename-compatibility.patch

@@ -0,0 +1,37 @@
+From 99f62f58fac57214ecc3c9aabf6bf61ac1e1201d Mon Sep 17 00:00:00 2001
+From: Tony Ambardar <itugrok@yahoo.com>
+Date: Fri, 7 Jun 2024 21:54:56 -0700
+Subject: [PATCH] i386: improve basename() compatibility
+
+Drop usage of glibc basename() in favour of a simpler implementation that
+works across GNU and musl libc, and is similar to existing code in fs2dt.c.
+
+This fixes compile errors seen building against musl.
+
+Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
+---
+ kexec/arch/i386/x86-linux-setup.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/kexec/arch/i386/x86-linux-setup.c
++++ b/kexec/arch/i386/x86-linux-setup.c
+@@ -318,6 +318,7 @@ static int add_edd_entry(struct x86_linu
+ 	uint8_t devnum, version;
+ 	uint32_t mbr_sig;
+ 	struct edd_info *edd_info;
++	char *basename = strrchr(sysfs_name,'/') + 1;
+ 
+ 	if (!current_mbr || !current_edd) {
+ 		fprintf(stderr, "%s: current_edd and current_edd "
+@@ -329,9 +330,9 @@ static int add_edd_entry(struct x86_linu
+ 	memset(edd_info, 0, sizeof(struct edd_info));
+ 
+ 	/* extract the device number */
+-	if (sscanf(basename(sysfs_name), "int13_dev%hhx", &devnum) != 1) {
++	if (sscanf(basename, "int13_dev%hhx", &devnum) != 1) {
+ 		fprintf(stderr, "Invalid format of int13_dev dir "
+-				"entry: %s\n", basename(sysfs_name));
++				"entry: %s\n", basename);
+ 		return -1;
+ 	}
+