Commit e847f6aa authored Mar 24, 2018 by Sven Wegener Committed by Ingo Molnar Mar 25, 2018

x86/purgatory: Avoid creating stray .<pid>.d files, remove -MD from KBUILD_CFLAGS

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>

parent bcfc1f45

arch/x86/purgatory/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -16,7 +16,7 @@ KCOV_INSTRUMENT := n
		# in turn leaves some undefined symbols like __fentry__ in purgatory and not
		# sure how to relocate those. Like kexec-tools, use custom flags.

		KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
		KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -Os -mcmodel=large
		KBUILD_CFLAGS += -m$(BITS)
		KBUILD_CFLAGS += $(call cc-option,-fno-PIE)