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aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT

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Suppress A.OUT library support if CONFIG_ARCH_SUPPORTS_AOUT is not set.

Not all architectures support the A.OUT binfmt, so the ELF binfmt should not
be permitted to go looking for A.OUT libraries to load in such a case.  Not
only that, but under such conditions A.OUT core dumps are not produced either.

To make this work, this patch also does the following:

 (1) Makes the existence of the contents of linux/a.out.h contingent on
     CONFIG_ARCH_SUPPORTS_AOUT.

 (2) Renames dump_thread() to aout_dump_thread() as it's only called by A.OUT
     core dumping code.

 (3) Moves aout_dump_thread() into asm/a.out-core.h and makes it inline.  This
     is then included only where needed.  This means that this bit of arch
     code will be stored in the appropriate A.OUT binfmt module rather than
     the core kernel.

 (4) Drops A.OUT support for Blackfin (according to Mike Frysinger it's not
     needed) and FRV.

This patch depends on the previous patch to move STACK_TOP[_MAX] out of
asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT
format is available.

[[email protected]: uml: re-remove accidentally restored code]
Signed-off-by: David Howells <[email protected]>
Cc: <[email protected]>
Signed-off-by: Jeff Dike <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
David Howells 2008-02-08 04:19:28 -08:00 • committed by Linus Torvalds
commit 7fa3031500
25 changed files with 423 additions and 257 deletions
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5
include/asm-frv/a.out.h
View file

@ -1,5 +0,0 @@
/*
* FRV doesn't do AOUT format. This header file should be removed as
* soon as fs/exec.c and fs/proc/kcore.c and the archs that require
* them to include linux/a.out.h are fixed.
*/