linux.git/arch/sh/kernel/entry-common.S, branch v2.6.28

sh: FTRACE renamed to FUNCTION_TRACER.

2008-10-31T07:20:36+00:00

Signed-off-by: Paul Mundt

sh: ftrace support.

2008-09-21T07:43:45+00:00

This adds support for ftrace to SH. This only includes CONFIG_FTRACE,
and does not handle dynamic ftrace presently.

Signed-off-by: Paul Mundt

sh: resume_kernel fix for kernel oops built with CONFIG_BKL_PREEMPT=y.

2008-09-05T05:42:16+00:00

This patch fixes a problem within the SH implementation of resume_kernel code,
that implements in assembly the bulk of preempt_schedule_irq function without
taking care of the extra code needed to handle the BKL preemptible.

The patch basically consists of removing this asm code and calling the common
C implementation (see kernel/sched.c) as other archs do.

Another change is the missing 'cli' macro invocation at the beginning of
the resume_kernel.

Signed-off-by: Giuseppe Cavallaro 
Signed-off-by: Carmelo Amoroso 
Signed-off-by: Paul Mundt

sh: Make syscall tracer use tracehook notifiers, add TIF_NOTIFY_RESUME.

2008-08-01T19:39:33+00:00

This follows the changes in commits:

7d6d637dac2050f30a1b57b0a3dc5de4a10616ba
4f72c4279eab1e5f3ed1ac4e55d4527617582392

on powerpc. Adding in TIF_NOTIFY_RESUME, and cleaning up the syscall
tracing to be more generic. This is an incremental step to turning
on tracehook, as well as unifying more of the ptrace and signal code
across the 32/64 split.

Signed-off-by: Paul Mundt

sh: Tidy up the _TIF work masks, and fix syscall trace bug on singlestep.

2008-08-01T19:39:32+00:00

Signed-off-by: Paul Mundt

sh: Don't miss pending signals returning to user mode after signal processing

2008-07-28T09:10:37+00:00

Without this patch, signals sent during architecture specific signal
handling (typically as a result of the user's stack being inaccessible)
are ignored.

This is the SH version of commit c3ff8ec31c1249d268cd11390649768a12bec1b9
which was for the i386.

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

sh: Fix up restorer in debug_trap exception return path.

2008-05-19T10:39:33+00:00

There are a few different types of debug trap exceptions, though now
that they are all going through a special jump table, the restorer needs
to be unified as well.

Presently this is falling through the ret_from_fork path, which more or
less does the right thing on SH-3/4 whilst being completely unsuitable on
MMU-less targets.

Ultimately what we want here is a branch through the platform's
restore_all directly, without worrying about the retval being clobbered.
We can accomplish that through a branch to __restore_all directly, so
switch it so we come back from the jump table and branch to the restorer.

This fixes up a recursion in the nommu WARN_ON() path, as well as some
other userspace nastiness where said recursion caused serious stack
corruption.

Signed-off-by: Paul Mundt

sh: Fix up thread info pointer in syscall_badsys resume path.

2008-05-16T05:55:07+00:00

Entry to resume_userspace expects r8 to contain current_thread_info,
which happens in all paths except for syscall_badsys, where r8 was
being inadvertently trampled. Reload it before the branch.

Signed-off-by: Hideo Saito 
Signed-off-by: Paul Mundt

sh: GUSA atomic rollback support.

2008-01-28T04:18:58+00:00

This implements kernel-level atomic rollback built on top of gUSA,
as an alternative non-IRQ based atomicity method. This is generally
a faster method for platforms that are lacking the LL/SC pairs that
SH-4A and later use, and is only supportable on legacy cores.

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

sh: syscall audit support.

2008-01-28T04:18:57+00:00

Support syscall auditing..

Signed-off-by: Yuichi Nakamura 
Signed-off-by: Paul Mundt