The patch titled
Fix crossbuilding checkstack
has been added to the -mm tree. Its filename is
fix-crossbuilding-checkstack.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Fix crossbuilding checkstack
From: Jeff Dike <jdike@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
Makefile | 14 ++++++++++----
1 files changed, 10 insertions(+), 4 deletions(-)
diff -puN Makefile~fix-crossbuilding-checkstack Makefile
--- a/Makefile~fix-crossbuilding-checkstack
+++ a/Makefile
@@ -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), \
_
Patches currently in -mm which might be from jdike@xxxxxxxxxxx are
origin.patch
uml-fix-net_kern-workqueue-abuse.patch
fix-crossbuilding-checkstack.patch
x86_64-i386-kernel-mode-faults-pollute-current-thead.patch
uml-fix-prototypes.patch
uml-problems-with-linux-ioh.patch
getting-rid-of-all-casts-of-kalloc-calls.patch
-
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