2019-10-29 12:13:58 +00:00
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# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the linux kernel.
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#
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2024-03-26 05:54:10 +00:00
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obj-y += core.o core_$(BITS).o ranges.o
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2019-10-29 12:13:58 +00:00
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obj-$(CONFIG_PPC32) += relocate_32.o
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2024-03-26 05:54:10 +00:00
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obj-$(CONFIG_KEXEC_FILE) += file_load.o file_load_$(BITS).o elf_$(BITS).o
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arch, crash: move arch_crash_save_vmcoreinfo() out to file vmcore_info.c
Nathan reported below building error:
=====
$ curl -LSso .config https://git.alpinelinux.org/aports/plain/community/linux-edge/config-edge.armv7
$ make -skj"$(nproc)" ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- olddefconfig all
..
arm-linux-gnueabi-ld: arch/arm/kernel/machine_kexec.o: in function `arch_crash_save_vmcoreinfo':
machine_kexec.c:(.text+0x488): undefined reference to `vmcoreinfo_append_str'
====
On architecutres, like arm, s390, ppc, sh, function
arch_crash_save_vmcoreinfo() is located in machine_kexec.c and it can
only be compiled in when CONFIG_KEXEC_CORE=y.
That's not right because arch_crash_save_vmcoreinfo() is used to export
arch specific vmcoreinfo. CONFIG_VMCORE_INFO is supposed to control its
compiling in. However, CONFIG_VMVCORE_INFO could be independent of
CONFIG_KEXEC_CORE, e.g CONFIG_PROC_KCORE=y will select CONFIG_VMVCORE_INFO.
Or CONFIG_KEXEC/CONFIG_KEXEC_FILE is set while CONFIG_CRASH_DUMP is
not set, it will report linking error.
So, on arm, s390, ppc and sh, move arch_crash_save_vmcoreinfo out to
a new file vmcore_info.c. Let CONFIG_VMCORE_INFO decide if compiling in
arch_crash_save_vmcoreinfo().
[akpm@linux-foundation.org: remove stray newlines at eof]
Link: https://lkml.kernel.org/r/20240129135033.157195-3-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://lore.kernel.org/all/20240126045551.GA126645@dev-arch.thelio-3990X/T/#u
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Klara Modin <klarasmodin@gmail.com>
Cc: Michael Kelley <mhklinux@outlook.com>
Cc: Pingfan Liu <piliu@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-01-29 13:50:33 +00:00
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obj-$(CONFIG_VMCORE_INFO) += vmcore_info.o
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2024-02-26 10:30:10 +00:00
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obj-$(CONFIG_CRASH_DUMP) += crash.o
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2019-10-29 12:13:58 +00:00
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# Disable GCOV, KCOV & sanitizers in odd or sensitive code
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GCOV_PROFILE_core_$(BITS).o := n
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KCOV_INSTRUMENT_core_$(BITS).o := n
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UBSAN_SANITIZE_core_$(BITS).o := n
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2022-05-18 10:07:05 +00:00
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KASAN_SANITIZE_core.o := n
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KASAN_SANITIZE_core_$(BITS) := n
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