Revert "uml: fix gcc problem" (c0a18111) · Commits · 戴 / test

This reverts commit . Uli reports that it breaks UML on x86-64 with the Fedora 8 gcc (gcc 4.1.2), causing a crash on startup. See http://marc.info/?l=linux-kernel&m=121011722806093&w=2 for a trace. Reported-by:

Ulrich Drepper <drepper@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

arch/um/Makefile

+1 −4

Original line number	Diff line number	Diff line
		@@ -77,10 +77,7 @@ include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
		KERNEL_DEFINES = $(strip -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
		-Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES))
		KBUILD_CFLAGS += $(KERNEL_DEFINES)
		# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
		# a lot more stack due to the lack of sharing of stacklots:
		KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
		echo $(call cc-option,-fno-unit-at-a-time); fi ;)
		KBUILD_CFLAGS += $(call cc-option,-fno-unit-at-a-time,)

		PHONY += linux

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