linux.git/arch/sh/kernel/process.c, branch v2.6.20

sh: Fix get_wchan().

2006-12-11T23:42:08+00:00

Some time ago the schedule frame size changed and we failed to reflect
this in get_wchan() at the time. This first popped up as a problem on
SH7751R where schedule_frame ended up being unaligned and generating
an unaligned trap. This fixes it up again..

Signed-off-by: Paul Mundt

sh: BUG() handling through trapa vector.

2006-12-11T23:42:08+00:00

Previously we haven't been doing anything with verbose BUG() reporting,
and we've been relying on the oops path for handling BUG()'s, which is
rather sub-optimal.

This switches BUG handling to use a fixed trapa vector (#0x3e) where we
construct a small bug frame post trapa instruction to get the context
right. This also makes it trivial to wire up a DIE_BUG for the atomic
die chain, which we couldn't really do before.

Signed-off-by: Paul Mundt

sh: gcc4 support.

2006-12-06T01:45:38+00:00

This fixes up the kernel for gcc4. The existing exception handlers
needed some wrapping for pt_regs access, acessing the registers
via a RELOC_HIDE() pointer.

The strcpy() issues popped up here too, so add -ffreestanding and
kill off the symbol export.

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

sh: Proper show_stack/show_trace() implementation.

2006-10-19T07:30:31+00:00

This splits out some of the previous show_stack() implementation which
was mostly doing the show_trace() work without actually dumping any of
the stack contents. This now gets split in to two sections, where we
do the fetching of the stack pointer and subsequent stack dumping in
show_stack(), while moving the call trace in to show_trace().

Signed-off-by: Paul Mundt

sh: SH-4A UBC support

2006-10-12T03:16:13+00:00

A simple patch to enable the UBC on SH-4A.

Signed-off-by: Ryusuke Sakato 
Signed-off-by: Paul Mundt

sh: Initial vsyscall page support.

2006-09-27T09:33:49+00:00

This implements initial support for the vsyscall page on SH.
At the moment we leave it configurable due to having nommu
to support from the same code base. We hook it up for the
signal trampoline return at present, with more to be added
later, once uClibc catches up.

Signed-off-by: Paul Mundt

sh: Update kexec support for API changes.

2006-09-27T09:26:05+00:00

This was falling a bit behind..

Signed-off-by: Paul Mundt

sh: Add support for SH7706/SH7710/SH7343 CPUs.

2006-09-27T08:38:11+00:00

This adds support for the aforementioned CPU subtypes, and cleans
up some build issues encountered as a result.

Signed-off-by: Paul Mundt

sh: __addr_ok() and other misc nommu fixups.

2006-09-27T08:25:07+00:00

A few more outstanding nommu fixups..

Signed-off-by: Yoshinori Sato 
Signed-off-by: Paul Mundt

sh: Fixup __strnlen_user() behaviour.

2006-09-27T08:07:07+00:00

Drop TIF_USERSPACE and add addr_limit to the thread_info struct.
Subsequently, use that for address checking in strnlen_user() to
ward off bogus -EFAULTs.

Make __strnlen_user() return 0 on exception, rather than -EFAULT.

Signed-off-by: Paul Mundt