linux.git/arch/arm/lib, branch v2.6.16 Linux kernel source tree [ARM] Fix muldi3.S 2006-03-08T17:25:33+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-03-08T17:25:33+00:00 3c8fdae78cf5d73c6739912a1ff087c0f23b2a47 When shifting the low-parts of signed numbers, a logical shift should be used to avoid sign-extending a bit which isn't a sign bit. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
When shifting the low-parts of signed numbers, a logical shift
should be used to avoid sign-extending a bit which isn't a sign
bit.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3104/1: ARM EABI: new helper function names 2006-01-14T16:18:29+00:00 Nicolas Pitre nico@cam.org 2006-01-14T16:18:29+00:00 ba95e4e4a0a8a3c6aba363d45f78d5f2e2d111eb Patch from Nicolas Pitre The ARM EABI defines new names for GCC helper functions. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Nicolas Pitre

The ARM EABI defines new names for GCC helper functions.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3103/1: ARM EABI: stack pointer must be 64-bit aligned (part 2) 2006-01-14T16:18:09+00:00 Nicolas Pitre nico@cam.org 2006-01-14T16:18:09+00:00 499b2ea11ff00c624d63af23516404fa2156639a Patch from Nicolas Pitre We must make sure that assembly code that modifies the stack pointer before calling a C function does it so it remains 64-bit aligned. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Nicolas Pitre

We must make sure that assembly code that modifies the stack pointer
before calling a C function does it so it remains 64-bit aligned.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3256/1: Make the function-returning ldm's use sp as the base register 2006-01-12T16:53:51+00:00 Catalin Marinas catalin.marinas@arm.com 2006-01-12T16:53:51+00:00 90303b102353302e84758f245906368907e6a23b Patch from Catalin Marinas If the low interrupt latency mode is enabled for the CPU (from ARMv6 onwards), the ldm/stm instructions are no longer atomic. An ldm instruction restoring the sp and pc registers can be interrupted immediately after sp was updated but before the pc. If this happens, the CPU restores the base register to the value before the ldm instruction but if the base register is not sp, the interrupt routine will corrupt the stack and the restarted ldm instruction will load garbage. Note that future ARM cores might always run in the low interrupt latency mode. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Catalin Marinas

If the low interrupt latency mode is enabled for the CPU (from ARMv6
onwards), the ldm/stm instructions are no longer atomic. An ldm instruction
restoring the sp and pc registers can be interrupted immediately after sp
was updated but before the pc. If this happens, the CPU restores the base
register to the value before the ldm instruction but if the base register
is not sp, the interrupt routine will corrupt the stack and the restarted
ldm instruction will load garbage.

Note that future ARM cores might always run in the low interrupt latency
mode.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] Fix get_user when passed a const pointer 2005-11-18T14:22:03+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2005-11-18T14:22:03+00:00 d2c5b69099ff747f9757da2416383b9a999171b1 Unfortunately, later gcc versions error out when our get_user is passed a const pointer, since we write to a temporary variable declared as typeof(*(p)) which propagates the const-ness. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Unfortunately, later gcc versions error out when our get_user is passed
a const pointer, since we write to a temporary variable declared as
typeof(*(p)) which propagates the const-ness.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3152/1: make various assembly local labels actually local (the rest) 2005-11-11T21:51:49+00:00 Nicolas Pitre nico@cam.org 2005-11-11T21:51:49+00:00 8adbb3718d6cead304f84f7dd60ad65274df0b15 Patch from Nicolas Pitre For assembly labels to actually be local they must start with ".L" and not only "." otherwise they still remain visible in the final link and clutter kallsyms needlessly, and possibly make for unclear symbolic backtrace. This patch simply inserts a"L" where appropriate. The code itself is unchanged. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Nicolas Pitre

For assembly labels to actually be local they must start with ".L" and
not only "." otherwise they still remain visible in the final link and
clutter kallsyms needlessly, and possibly make for unclear symbolic
backtrace. This patch simply inserts a"L" where appropriate. The code
itself is unchanged.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3151/1: make various assembly local labels actually local (io-*.S) 2005-11-11T21:51:48+00:00 Nicolas Pitre nico@cam.org 2005-11-11T21:51:48+00:00 a9c4814d8db200052c07d8b68e76c134682c4569 Patch from Nicolas Pitre For assembly labels to actually be local they must start with ".L" and not only "." otherwise they still remain visible in the final link and clutter kallsyms needlessly, and possibly make for unclear symbolic backtrace. This patch simply inserts a"L" where appropriate. The code itself is unchanged. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Nicolas Pitre

For assembly labels to actually be local they must start with ".L" and
not only "." otherwise they still remain visible in the final link and
clutter kallsyms needlessly, and possibly make for unclear symbolic
backtrace. This patch simply inserts a"L" where appropriate. The code
itself is unchanged.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] 3150/1: make various assembly local labels actually local (uaccess.S) 2005-11-11T21:51:47+00:00 Nicolas Pitre nico@cam.org 2005-11-11T21:51:47+00:00 7ba11a9c1598ced7d719648a5998a2a81ba06dc9 Patch from Nicolas Pitre For assembly labels to actually be local they must start with ".L" and not only "." otherwise they still remain visible in the final link and clutter kallsyms needlessly, and possibly make for unclear symbolic backtrace. This patch simply inserts a"L" where appropriate. The code itself is unchanged. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Patch from Nicolas Pitre

For assembly labels to actually be local they must start with ".L" and
not only "." otherwise they still remain visible in the final link and
clutter kallsyms needlessly, and possibly make for unclear symbolic
backtrace. This patch simply inserts a"L" where appropriate. The code
itself is unchanged.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] Fix csumpartial corner case 2005-11-10T11:40:53+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2005-11-10T11:40:53+00:00 af36bef0c5bb82f361ebb2f106f11d0f63dac887 Ji-In Park discovered a bug in csumpartial which caused wrong checksums with misaligned buffers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Ji-In Park discovered a bug in csumpartial which caused wrong
checksums with misaligned buffers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] Clean up save_and_disable_irqs macro and allow use of ARMv6 CPSID 2005-11-09T15:04:22+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2005-11-09T15:04:22+00:00 59d1ff3bfb56d9b8cf3ec864857e6a4dfd9d2dba save_and_disable_irqs does not need to use mov + msr (which was introduced to work around a documentation bug which was propagated into binutils.) Use msr with an immediate constant, and if we're building for ARMv6 or later, use the new CPSID instruction. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
save_and_disable_irqs does not need to use mov + msr (which was
introduced to work around a documentation bug which was propagated
into binutils.)  Use msr with an immediate constant, and if we're
building for ARMv6 or later, use the new CPSID instruction.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>