Commit fb43e847 authored Jun 30, 2014 by Guenter Roeck Committed by Benjamin Herrenschmidt Jul 11, 2014

powerpc: Disable RELOCATABLE for COMPILE_TEST with PPC64



powerpc:allmodconfig has been failing for some time with the following
error.

arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1312: Error: attempt to move .org backwards
make[1]: *** [arch/powerpc/kernel/head_64.o] Error 1

A number of attempts to fix the problem by moving around code have been
unsuccessful and resulted in failed builds for some configurations and
the discovery of toolchain bugs.

Fix the problem by disabling RELOCATABLE for COMPILE_TEST builds instead.
While this is less than perfect, it avoids substantial code changes
which would otherwise be necessary just to make COMPILE_TEST builds
happy and might have undesired side effects.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent b50a6c58

arch/powerpc/Kconfig

+2 −1

Original line number	Diff line number	Diff line
		@@ -414,7 +414,7 @@ config KEXEC
		config CRASH_DUMP
		bool "Build a kdump crash kernel"
		depends on PPC64 \|\| 6xx \|\| FSL_BOOKE \|\| (44x && !SMP)
		select RELOCATABLE if PPC64 \|\| 44x \|\| FSL_BOOKE
		select RELOCATABLE if (PPC64 && !COMPILE_TEST) \|\| 44x \|\| FSL_BOOKE
		help
		Build a kernel suitable for use as a kdump capture kernel.
		The same kernel binary can be used as production kernel and dump
		@@ -1017,6 +1017,7 @@ endmenu
		if PPC64
		config RELOCATABLE
		bool "Build a relocatable kernel"
		depends on !COMPILE_TEST
		select NONSTATIC_KERNEL
		help
		This builds a kernel image that is capable of running anywhere

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