alistair23-linux/arch
Josh Triplett b06dd879f5 x86: always define BUG() and HAVE_ARCH_BUG, even with !CONFIG_BUG
This ensures that BUG() always has a definition that causes a trap (via
an undefined instruction), and that the compiler still recognizes the
code following BUG() as unreachable, avoiding warnings that would
otherwise appear (such as on non-void functions that don't return a
value after BUG()).

In addition to saving a few bytes over the generic infinite-loop
implementation, this implementation traps rather than looping, which
potentially allows for better error-recovery behavior (such as by
rebooting).

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-07 16:36:10 -07:00
..
alpha PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
arc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-04-02 16:23:38 -07:00
arm IOMMU Upates for Linux v3.15 2014-04-05 18:46:26 -07:00
arm64 Merge tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2014-04-02 14:50:10 -07:00
avr32 Char/Misc driver patches for 3.15-rc1 2014-04-01 16:13:21 -07:00
blackfin Most of the changes were largely clean ups, and some documentation. 2014-04-03 10:26:31 -07:00
c6x Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-03-31 10:59:39 -07:00
cris cris: cpuinfo_op should depend on CONFIG_PROC_FS 2014-04-07 16:36:09 -07:00
frv PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
hexagon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel 2014-04-05 13:19:32 -07:00
ia64 ia64: select CONFIG_TTY for use of tty_write_message in unaligned 2014-04-07 16:36:09 -07:00
m32r
m68k Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2014-04-05 13:18:52 -07:00
metag Most of the changes were largely clean ups, and some documentation. 2014-04-03 10:26:31 -07:00
microblaze Most of the changes were largely clean ups, and some documentation. 2014-04-03 10:26:31 -07:00
mips Most of the changes were largely clean ups, and some documentation. 2014-04-03 10:26:31 -07:00
mn10300 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
openrisc
parisc Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
powerpc ppc: make PPC_BOOK3S_64 select IRQ_WORK 2014-04-07 16:36:09 -07:00
s390 mm: revert "thp: make MADV_HUGEPAGE check for mm->def_flags" 2014-04-07 16:35:51 -07:00
score score: remove unused CPU_SCORE7 Kconfig parameter 2014-04-03 16:20:52 -07:00
sh Merge branch 'akpm' (incoming from Andrew) 2014-04-03 16:22:16 -07:00
sparc Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2014-04-03 13:05:42 -07:00
tile Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2014-04-06 08:11:57 -07:00
um Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-04-02 20:53:45 -07:00
unicore32 mm: per-thread vma caching 2014-04-07 16:35:53 -07:00
x86 x86: always define BUG() and HAVE_ARCH_BUG, even with !CONFIG_BUG 2014-04-07 16:36:10 -07:00
xtensa Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-01 11:22:57 -07:00
.gitignore
Kconfig