aout: mark arches that support A.OUT format

Mark arches that support A.OUT format by including the following in their
master Kconfig files:

	config ARCH_SUPPORTS_AOUT
		def_bool y

This should also be set if the arch provides compatibility A.OUT support for
an older arch, for instance x86_64 for i386 or sparc64 for sparc.

I've guessed at which arches don't, based on comments in the code, however I'm
sure that some of the ones I've marked as 'yes' actually should be 'no'.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9d0acedf5f3..65a70b777c1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -136,6 +136,9 @@ config AUDIT_ARCH
         bool
         default X86_64
 
+config ARCH_SUPPORTS_AOUT
+        def_bool y
+
 # Use the generic interrupt handling code in kernel/irq/:
 config GENERIC_HARDIRQS
         bool
@@ -1577,7 +1580,7 @@ config IA32_EMULATION
 
 config IA32_AOUT
        tristate "IA32 a.out support"
-       depends on IA32_EMULATION
+       depends on IA32_EMULATION && ARCH_SUPPORTS_AOUT
        help
          Support old a.out binaries in the 32bit emulation.