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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e847f6aaf6
The kernel build system already takes care of generating the dependency files. Having the additional -MD in KBUILD_CFLAGS leads to stray .<pid>.d files in the build directory when we call the cc-option macro. Signed-off-by: Sven Wegener <sven.wegener@stealer.net> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthias Kaehlcke <mka@chromium.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vivek Goyal <vgoyal@redhat.com> Link: http://lkml.kernel.org/r/alpine.LNX.2.21.1803242219380.30139@titan.int.lan.stealer.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
36 lines
1.1 KiB
Makefile
36 lines
1.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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OBJECT_FILES_NON_STANDARD := y
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purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o
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targets += $(purgatory-y)
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PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
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LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
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targets += purgatory.ro
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KASAN_SANITIZE := n
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KCOV_INSTRUMENT := n
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# Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
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# in turn leaves some undefined symbols like __fentry__ in purgatory and not
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# sure how to relocate those. Like kexec-tools, use custom flags.
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KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -Os -mcmodel=large
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KBUILD_CFLAGS += -m$(BITS)
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KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
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$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
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$(call if_changed,ld)
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targets += kexec-purgatory.c
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CMD_BIN2C = $(objtree)/scripts/basic/bin2c
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quiet_cmd_bin2c = BIN2C $@
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cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
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$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
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$(call if_changed,bin2c)
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obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o
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