]> err.no Git - linux-2.6/commit
[UML] fix gcc ICEs and unresolved externs
authorJeff Dike <jdike@addtoit.com>
Mon, 7 Jul 2008 17:36:56 +0000 (13:36 -0400)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 7 Jul 2008 17:53:10 +0000 (10:53 -0700)
commit4f81c5350b44bcc501ab6f8a089b16d064b4d2f6
tree69a3e0f0758f114d1faa6a3242c02ec26f4a2ddc
parentb2798bf0ec2cb5a17bfc1430c5ba6d971c436a03
[UML] fix gcc ICEs and unresolved externs

There are various constraints on the use of unit-at-a-time:
 - i386 uses no-unit-at-a-time for pre-4.0 (not 4.3)
 - x86_64 uses unit-at-a-time always

Uli reported a crash on x86_64 with gcc 4.1.2 with unit-at-a-time,
resulting in commit c0a18111e571138747a98af18b3a2124df56a0d1

Ingo reported a gcc internal error with gcc 4.3 with no-unit-at-a-timem,
resulting in 22eecde2f9034764a3fd095eecfa3adfb8ec9a98

Benny Halevy is seeing extern inlines not resolved with gcc 4.3 with
no-unit-at-a-time

This patch reintroduces unit-at-a-time for gcc >= 4.0, bringing back the
possibility of Uli's crash.  If that happens, we'll debug it.

I started seeing both the internal compiler errors and unresolved
inlines on Fedora 9.  This patch fixes both problems, without so far
reintroducing the crash reported by Uli.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Benny Halevy <bhalevy@panasas.com>
Cc: Adrian Bunk <bunk@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/um/Makefile
arch/um/Makefile-i386
arch/um/Makefile-x86_64