mirror of
https://github.com/hardkernel/linux.git
synced 2026-03-24 19:40:21 +09:00
5640975003
This patch allows Linux to act as a crash kernel for use with kdump. Userspace will let the crash kernel know about the memory region it can use through linux,usable-memory property on the /memory node (overriding its reg property), and about the memory region where the elf core header of the previous kernel is saved, through a reserved-memory node with a compatible string of "linux,elfcorehdr". This approach is the least invasive and re-uses functionality already present. I tested this on riscv64 qemu and it works as expected, you may test it by retrieving the dmesg of the previous kernel through /proc/vmcore, using the vmcore-dmesg utility from kexec-tools. Signed-off-by: Nick Kossifidis <mick@ics.forth.gr> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
67 lines
1.6 KiB
Makefile
67 lines
1.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# Makefile for the RISC-V Linux kernel
|
|
#
|
|
|
|
ifdef CONFIG_FTRACE
|
|
CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
|
|
CFLAGS_REMOVE_patch.o = $(CC_FLAGS_FTRACE)
|
|
CFLAGS_REMOVE_sbi.o = $(CC_FLAGS_FTRACE)
|
|
endif
|
|
|
|
ifdef CONFIG_KEXEC
|
|
AFLAGS_kexec_relocate.o := -mcmodel=medany -mno-relax
|
|
endif
|
|
|
|
extra-y += head.o
|
|
extra-y += vmlinux.lds
|
|
|
|
obj-y += soc.o
|
|
obj-y += cpu.o
|
|
obj-y += cpufeature.o
|
|
obj-y += entry.o
|
|
obj-y += irq.o
|
|
obj-y += process.o
|
|
obj-y += ptrace.o
|
|
obj-y += reset.o
|
|
obj-y += setup.o
|
|
obj-y += signal.o
|
|
obj-y += syscall_table.o
|
|
obj-y += sys_riscv.o
|
|
obj-y += time.o
|
|
obj-y += traps.o
|
|
obj-y += riscv_ksyms.o
|
|
obj-y += stacktrace.o
|
|
obj-y += cacheinfo.o
|
|
obj-y += patch.o
|
|
obj-y += probes/
|
|
obj-$(CONFIG_MMU) += vdso.o vdso/
|
|
|
|
obj-$(CONFIG_RISCV_M_MODE) += traps_misaligned.o
|
|
obj-$(CONFIG_FPU) += fpu.o
|
|
obj-$(CONFIG_SMP) += smpboot.o
|
|
obj-$(CONFIG_SMP) += smp.o
|
|
obj-$(CONFIG_SMP) += cpu_ops.o
|
|
obj-$(CONFIG_SMP) += cpu_ops_spinwait.o
|
|
obj-$(CONFIG_MODULES) += module.o
|
|
obj-$(CONFIG_MODULE_SECTIONS) += module-sections.o
|
|
|
|
obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
|
|
obj-$(CONFIG_DYNAMIC_FTRACE) += mcount-dyn.o
|
|
|
|
obj-$(CONFIG_RISCV_BASE_PMU) += perf_event.o
|
|
obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o
|
|
obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o
|
|
obj-$(CONFIG_RISCV_SBI) += sbi.o
|
|
ifeq ($(CONFIG_RISCV_SBI), y)
|
|
obj-$(CONFIG_SMP) += cpu_ops_sbi.o
|
|
endif
|
|
obj-$(CONFIG_HOTPLUG_CPU) += cpu-hotplug.o
|
|
obj-$(CONFIG_KGDB) += kgdb.o
|
|
obj-$(CONFIG_KEXEC) += kexec_relocate.o crash_save_regs.o machine_kexec.o
|
|
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
|
|
|
|
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
|
|
|
|
obj-$(CONFIG_EFI) += efi.o
|