parisc: Changes to ref refs/heads/tracehook

New commits:
commit abf01ee7f86ac2bee2982e1a840a3136312d895e

Author: Kyle McMartin <[email protected]>
Date:   Sun Jul 5 16:01:51 2009 -0400

parisc: HAVE_ARCH_TRACEHOOK

commit 351d7bc3f587b79f08cdeb4033a53da90ed3bf58

Author: Kyle McMartin <[email protected]>
Date:   Sun Jul 5 15:59:56 2009 -0400

parisc: add skeleton syscall.h

Needed for lib/syscall.c when HAVE_ARCH_TRACEHOOK.

commit 73e89724292b34321d4c6e24cdd590e487c36e57

Author: Kyle McMartin <[email protected]>
Date:   Sun Jul 5 15:08:57 2009 -0400

parisc: stop using task->ptrace for {single,block}step flags

task->ptrace flags belong to generic code, so instead thief some TIF_ bits to use. Somewhat risky conversion of code to test TASK_FLAGS instead of TASK_PTRACE in assembly, but it looks alright in the end.

commit 2f0dda27f8e62c409e30125d420e89c762d0ea98

Author: Kyle McMartin <[email protected]>
Date:   Sun Jul 5 14:36:16 2009 -0400

parisc: split syscall_trace into two halves

Instead of fiddling with gr[20], restructure code to return whether or not to -ENOSYS. (Also do a bit of fiddling to let them take pt_regs directly instead of re-computing it.)

commit abe61475751e54ffe5323983833c09c951baf0bc

Author: Kyle McMartin <[email protected]>
Date:   Sun Jul 5 14:39:58 2009 -0400

parisc: add missing TI_TASK macro in syscall.S

LDREG 0(%r1),%r1 really wants to be accessing thread_info.task, instead of hardcoding the 0.

commit c7f25b66b4e990ecba247c334d540a6db4ab8ae1

Author: Kyle McMartin <[email protected]>
Date:   Mon Apr 27 00:51:13 2009 -0400

parisc: TIF_NOTIFY_RESUME

commit 618525e21c173ef093872b41f4da3a6bb7de4252

Author: Kyle McMartin <[email protected]>
Date:   Mon Apr 27 00:29:53 2009 -0400

parisc: tracehook_signal_handler

This makes parisc call the standard tracehook_signal_handler hook in <linux/tracehook.h> after setting up a signal handler.

commit 686028921d47115fe807b7b9d3e035eee155baf0

Author: Kyle McMartin <[email protected]>
Date:   Sun Apr 26 23:53:34 2009 -0400

parisc: tracehook_report_syscall

This makes parisc use the standard tracehook_report_syscall_entry and tracehook_report_syscall_exit hooks in <linux/tracehook.h>.

To do this, we need to access current->thread.regs, and to know whether we're entering or exiting the syscall, so add this to syscall_trace.