[PATCH 2/3] disallow modular binfmt_elf32

[Christoph Hellwig]

Currently most architectures either always build binfmt_elf32 in the
kernel image or make it a boolean option.  Only sparc64 and s390 allow
to build it modularly.  This patch turns the option into a boolean
aswell because elf requires various symbols that shouldn't be available
to modules.  The most urgent one is tasklist_lock whos export this patch
series kills, but there are others like force_sgi aswell.

Note that sparc doesn't allow a modular 32bit a.out handler either, and
that would be the more useful case as only few people want 32bit sunos
compatibility and 99.9% of all sparc64 users need 32bit linux native elf
support.


Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Index: linux-2.6/arch/s390/Kconfig
===================================================================
--- linux-2.6.orig/arch/s390/Kconfig	2006-07-06 14:21:17.000000000 +0200
+++ linux-2.6/arch/s390/Kconfig	2006-07-08 19:08:46.000000000 +0200
@@ -119,7 +119,7 @@
 	default y
 
 config BINFMT_ELF32
-	tristate "Kernel support for 31 bit ELF binaries"
+	bool "Kernel support for 31 bit ELF binaries"
 	depends on COMPAT
 	help
 	  This allows you to run 32-bit Linux/ELF binaries on your zSeries
Index: linux-2.6/arch/sparc64/Kconfig
===================================================================
--- linux-2.6.orig/arch/sparc64/Kconfig	2006-07-01 12:49:02.000000000 +0200
+++ linux-2.6/arch/sparc64/Kconfig	2006-07-08 19:08:32.000000000 +0200
@@ -334,7 +334,7 @@
 	default y
 
 config BINFMT_ELF32
-	tristate "Kernel support for 32-bit ELF binaries"
+	bool "Kernel support for 32-bit ELF binaries"
 	depends on SPARC32_COMPAT
 	help
 	  This allows you to run 32-bit Linux/ELF binaries on your Ultra.
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