[PATCH] Fix crossbuilding checkstack (011e3a9a) · Commits · 戴 / test

The previous checkstack fix for UML, which needs to use the host's tools, was wrong in the crossbuilding case. It would use the build host's, rather than the target's, toolchain. This patch removes the old fix and adds an explicit special case for UML, leaving everyone else alone. Signed-off-by:

Jeff Dike <jdike@addtoit.com> Signed-off-by:

Andrew Morton <akpm@osdl.org> Signed-off-by:

Linus Torvalds <torvalds@osdl.org>

Makefile

+10 −4

Original line number	Diff line number	Diff line
		@@ -1390,12 +1390,18 @@ endif #ifeq ($(mixed-targets),1)

		PHONY += checkstack kernelrelease kernelversion

		# Use $(SUBARCH) here instead of $(ARCH) so that this works for UML.
		# In the UML case, $(SUBARCH) is the name of the underlying
		# architecture, while for all other arches, it is the same as $(ARCH).
		# UML needs a little special treatment here. It wants to use the host
		# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
		# else wants $(ARCH), including people doing cross-builds, which means
		# that $(SUBARCH) doesn't work here.
		ifeq ($(ARCH), um)
		CHECKSTACK_ARCH := $(SUBARCH)
		else
		CHECKSTACK_ARCH := $(ARCH)
		endif
		checkstack:
		$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') \| \
		$(PERL) $(src)/scripts/checkstack.pl $(SUBARCH)
		$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

		kernelrelease:
		$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \

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