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authorDaniel Golle <daniel@makrotopia.org>2017-03-21 15:58:13 -0600
committerDaniel Golle <daniel@makrotopia.org>2017-06-09 22:21:25 +0200
commit5e4bb476c0cc46dedc020a802f045d479e483857 (patch)
tree21fa856ca68582dd0225e6c700a4867661117fc3 /package/boot/kexec-tools/Makefile
parent8b486ec2b52056b737a4ce64a2040a9a27a6bd60 (diff)
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kexec-tools: bump version and add support for crashdump kernel
split kexec-tools into two packages, kexec and kdump. * kexec to simply execute a new kernel * kdump is for loading and collecting debris of a crashed kernel with support for kdump forensics. In order to properly support booting into a crashkernel, an init script as well as UCI configuration has been added. As modifying the kernel cmdline is required for this to work in x86 platforms use an uci-defaults script to modify /boot/grub/grub.cfg. To test collecting crash information, use the 'c' sysrq-trigger, ie. echo c > /proc/sysrq-trigger This should result in the crash kernel being executed and (depending on the configution) dmesg and/or vmcore getting saved. To check if the crash kernel was loaded properly, use the 'status' command of the kdump init script. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'package/boot/kexec-tools/Makefile')
-rw-r--r--package/boot/kexec-tools/Makefile80
1 files changed, 64 insertions, 16 deletions
diff --git a/package/boot/kexec-tools/Makefile b/package/boot/kexec-tools/Makefile
index ecd2a6ea11..1c686a2540 100644
--- a/package/boot/kexec-tools/Makefile
+++ b/package/boot/kexec-tools/Makefile
@@ -8,12 +8,12 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=kexec-tools
-PKG_VERSION:=2.0.14-rc1
+PKG_VERSION:=2.0.14
PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=@KERNEL/linux/utils/kernel/kexec
-PKG_HASH:=3fc505ff8d8a2d24c68aac5e6b4783997d5a086966ff3de8b05a0ceb27e5e23b
+PKG_HASH:=ffb2e7e99d9d08754c6bc1922aed3c000094f318665d82a72ecc76c4ff1c0dc6
PKG_FIXUP:=autoreconf
@@ -21,22 +21,49 @@ PKG_CONFIG_DEPENDS := CONFIG_KEXEC_ZLIB CONFIG_KEXEC_LZMA
include $(INCLUDE_DIR)/package.mk
-define Package/kexec-tools
+define Package/kexec-tools/Default
SECTION:=utils
CATEGORY:=Utilities
- DEPENDS:=@armeb||@arm||@i386||@x86_64||@powerpc64||@mipsel||@mips +KEXEC_ZLIB:zlib +KEXEC_LZMA:liblzma
- TITLE:=Kernel boots kernel
URL:=http://kernel.org/pub/linux/kernel/people/horms/kexec-tools/
MAINTAINER:=Florian Fainelli <florian@openwrt.org>
- MENU:=1
+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 systems call that allows you to load
+ 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-tools/config
+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
@@ -65,24 +92,45 @@ CONFIGURE_VARS += \
BUILD_CC="$(HOSTCC)" \
TARGET_CC="$(TARGET_CC)"
-kexec-extra-sbin-$(CONFIG_KEXEC_TOOLS_kdump) += kdump
-
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) \
- $(addprefix $(PKG_INSTALL_DIR)/usr/sbin/, \
- $(kexec-extra-sbin-y)) \
- $(kexec-extra-bin-y) \
- $(PKG_INSTALL_DIR)/usr/sbin/kexec \
- $(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/kdump $(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))