linux-stable.git/arch/sh/lib, branch linux-3.4.y

sh: always link in helper functions extracted from libgcc

2014-01-08T17:42:12+00:00

commit 84ed8a99058e61567f495cc43118344261641c5f upstream.

E.g. landisk_defconfig, which has CONFIG_NTFS_FS=m:

  ERROR: "__ashrdi3" [fs/ntfs/ntfs.ko] undefined!

For "lib-y", if no symbols in a compilation unit are referenced by other
units, the compilation unit will not be included in vmlinux.  This
breaks modules that do reference those symbols.

Use "obj-y" instead to fix this.

http://kisskb.ellerman.id.au/kisskb/buildresult/8838077/

This doesn't fix all cases. There are others, e.g. udivsi3.
This is also not limited to sh, many architectures handle this in the
same way.

A simple solution is to unconditionally include all helper functions.
A more complex solution is to make the choice of "lib-y" or "obj-y" depend
on CONFIG_MODULES:

  obj-$(CONFIG_MODULES) += ...
  lib-y($CONFIG_MODULES) += ...

Signed-off-by: Geert Uytterhoeven 
Cc: Paul Mundt 
Tested-by: Nobuhiro Iwamatsu 
Reviewed-by: Nobuhiro Iwamatsu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

sh: Ensure ST40-300 BogoMIPS value is consistent

2011-02-15T07:24:05+00:00

A strange variation was seen in the BogoMIPS figure for the ST40-300.
This was eventually tracked down to sensitivity to the alignment of
the loop. So add an align directive to ensure this doesn't occur.

Signed-off-by: Stuart Menefy 
Signed-off-by: Paul Mundt

sh: change to new flag variable

2010-09-23T07:18:18+00:00

Replace EXTRA_CFLAGS with ccflags-y.

Signed-off-by: matt mooney 
Signed-off-by: Paul Mundt

arch/sh/lib/strlen.S: Checkpatch cleanup

2010-05-23T23:11:07+00:00

arch/sh/lib/strlen.S:38: ERROR: trailing whitespace

Signed-off-by: Andrea Gelmini 
Signed-off-by: Paul Mundt

arch/sh/lib/libgcc.h: Checkpatch cleanup

2010-03-01T02:57:29+00:00

arch/sh/lib/libgcc.h:21: ERROR: open brace '{' following union go on the same line

Signed-off-by: Andrea Gelmini 
Signed-off-by: Paul Mundt

sh: Optimised memset for SH4

2009-11-24T07:28:43+00:00

Optimised version of memset for the SH4 which uses movca.l.

Signed-off-by: Stuart Menefy 
Signed-off-by: Paul Mundt

sh: Kill off dcache writeback from copy_page().

2009-09-08T07:23:08+00:00

Now that the cache purging is handled manually by all copy_page()
callers, we can kill off copy_page()'s on writeback. This optimizes the
non-aliasing case.

Signed-off-by: Paul Mundt

Merge branch 'master' into sh/smp

2009-09-01T04:54:14+00:00

Conflicts:
	arch/sh/mm/cache-sh4.c

sh: Fix underflow in SH udelay() code.

2009-08-24T09:18:50+00:00

Signed-off-by: Stuart Menefy 
Signed-off-by: Paul Mundt

sh: Remove implicit sign extension from assembler immediates

2009-08-24T08:09:53+00:00

The SH instruction set has several instructions which accept an 8 bit
immediate operand. For logical instructions this operand is zero extended,
for arithmetic instructions the operand is sign extended. After adding an
option to the assembler to check this, it was found that several pieces
of assembly code were assuming this behaviour, and in one case
getting it wrong.

So this patch explicitly sign extends any immediate operands, which makes
it obvious what is happening, and fixes the one case which got it wrong.

Signed-off-by: Stuart Menefy 
Signed-off-by: Paul Mundt