linux/arch
David Howells 9b8de7479d FRV: Fix the section attribute on UP DECLARE_PER_CPU()
In non-SMP mode, the variable section attribute specified by DECLARE_PER_CPU()
does not agree with that specified by DEFINE_PER_CPU().  This means that
architectures that have a small data section references relative to a base
register may throw up linkage errors due to too great a displacement between
where the base register points and the per-CPU variable.

On FRV, the .h declaration says that the variable is in the .sdata section, but
the .c definition says it's actually in the .data section.  The linker throws
up the following errors:

kernel/built-in.o: In function `release_task':
kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o
kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o

To fix this, DECLARE_PER_CPU() should simply apply the same section attribute
as does DEFINE_PER_CPU().  However, this is made slightly more complex by
virtue of the fact that there are several variants on DEFINE, so these need to
be matched by variants on DECLARE.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21 19:39:59 -07:00
..
alpha FRV: Fix the section attribute on UP DECLARE_PER_CPU() 2009-04-21 19:39:59 -07:00
arm clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
avr32 clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
blackfin clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
cris tty: Use the generic RS485 ioctl on CRIS 2009-04-07 08:44:05 -07:00
frv frv: insert PCI root bus resources for the MB93090 devel motherboard 2009-04-21 13:41:50 -07:00
h8300 Get rid of final remnants of include/asm-$(ARCH) 2009-04-17 09:59:27 -07:00
ia64 FRV: Fix the section attribute on UP DECLARE_PER_CPU() 2009-04-21 19:39:59 -07:00
m32r m32r: move include/asm-m32r/* to arch/m32r/include/asm/ 2009-04-17 10:50:23 +09:00
m68k Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-04-05 11:04:19 -07:00
m68knommu clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
microblaze microblaze: remove duplicated #include's 2009-04-14 11:09:15 +02:00
mips clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
mn10300 MN10300: Stop gcc from generating uninitialised variable warnings after BUG() 2009-04-15 13:55:13 -07:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2009-04-03 09:52:04 -07:00
powerpc clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
s390 clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
sh clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
sparc clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
um uml: kill a kconfig warning 2009-04-21 13:41:50 -07:00
x86 FRV: Fix the section attribute on UP DECLARE_PER_CPU() 2009-04-21 19:39:59 -07:00
xtensa Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-04-05 11:04:19 -07:00
.gitignore
Kconfig mutex: have non-spinning mutexes on s390 by default 2009-04-09 19:28:24 +02:00