kexec-tools/dracut-early-kdump.sh
Kairui Song 02202aa70f logger: source the logger file individually
Sourcing logger file in kdump-lib.sh will leak kdump helper to dracut,
because module-setup.sh will source kdump-lib.sh. This will make kdump's
function override dracut's ones, and lead to unexpected behaviours.

So include kdump-logger.sh individually and only source it where it really
needed. for module-setup.sh, simply use dracut's logger helper is good
enough so just source kdump-logger.sh in kdump only scripts.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Lianbo Jiang <lijiang@redhat.com>
2021-01-20 14:13:44 +08:00

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#! /bin/sh
KEXEC=/sbin/kexec
standard_kexec_args="-p"
EARLY_KDUMP_INITRD=""
EARLY_KDUMP_KERNEL=""
EARLY_KDUMP_CMDLINE=""
EARLY_KDUMP_KERNELVER=""
EARLY_KEXEC_ARGS=""
. /etc/sysconfig/kdump
. /lib/dracut-lib.sh
. /lib/kdump-lib.sh
. /lib/kdump-logger.sh
#initiate the kdump logger
dlog_init
if [ $? -ne 0 ]; then
echo "failed to initiate the kdump logger."
exit 1
fi
prepare_parameters()
{
EARLY_KDUMP_CMDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}")
EARLY_KDUMP_KERNEL="/boot/kernel-earlykdump"
EARLY_KDUMP_INITRD="/boot/initramfs-earlykdump"
}
early_kdump_load()
{
check_kdump_feasibility
if [ $? -ne 0 ]; then
return 1
fi
if is_fadump_capable; then
dwarn "WARNING: early kdump doesn't support fadump."
return 1
fi
check_current_kdump_status
if [ $? == 0 ]; then
return 1
fi
prepare_parameters
EARLY_KEXEC_ARGS=$(prepare_kexec_args "${KEXEC_ARGS}")
if is_secure_boot_enforced; then
dinfo "Secure Boot is enabled. Using kexec file based syscall."
EARLY_KEXEC_ARGS="$EARLY_KEXEC_ARGS -s"
fi
# Here, only output the messages, but do not save these messages
# to a file because the target disk may not be mounted yet, the
# earlykdump is too early.
ddebug "earlykdump: $KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \
--command-line=$EARLY_KDUMP_CMDLINE --initrd=$EARLY_KDUMP_INITRD \
$EARLY_KDUMP_KERNEL"
$KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \
--command-line="$EARLY_KDUMP_CMDLINE" \
--initrd=$EARLY_KDUMP_INITRD $EARLY_KDUMP_KERNEL
if [ $? == 0 ]; then
dinfo "kexec: loaded early-kdump kernel"
return 0
else
derror "kexec: failed to load early-kdump kernel"
return 1
fi
}
set_early_kdump()
{
if getargbool 0 rd.earlykdump; then
dinfo "early-kdump is enabled."
early_kdump_load
else
dinfo "early-kdump is disabled."
fi
return 0
}
set_early_kdump