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Re: [PATCH 00/23] tracehook

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From: David Miller
Subject: Re: [PATCH 00/23] tracehook
Date: Monday, July 21, 2008 - 8:18 am

From: Roland McGrath <roland@redhat.com>
Date: Mon, 21 Jul 2008 03:54:31 -0700 (PDT)


Look at S390 and PowerPC, they do the sign extension cases as well.

PowerPC does it with C level stubs, whereas I believe S390 uses a
similar assembler stub scheme as sparc64.

But you are right, this is probably not an issue, and providing 32-bit
truncated incoming args, and letting the tracer do whatever it likes
for outgoing args, should work just fine.
--
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Messages in current thread:
[PATCH 00/23] tracehook, Roland McGrath, (Thu Jul 17, 12:25 am)
[PATCH 01/23] tracehook: add linux/tracehook.h, Roland McGrath, (Thu Jul 17, 12:27 am)
[PATCH 02/23] tracehook: exec, Roland McGrath, (Thu Jul 17, 12:28 am)
[PATCH 03/23] tracehook: unexport ptrace_notify, Roland McGrath, (Thu Jul 17, 12:28 am)
[PATCH 04/23] tracehook: exit, Roland McGrath, (Thu Jul 17, 12:28 am)
[PATCH 05/23] tracehook: clone, Roland McGrath, (Thu Jul 17, 12:29 am)
[PATCH 06/23] tracehook: vfork-done, Roland McGrath, (Thu Jul 17, 12:29 am)
[PATCH 07/23] tracehook: release_task, Roland McGrath, (Thu Jul 17, 12:29 am)
[PATCH 08/23] tracehook: tracehook_tracer_task, Roland McGrath, (Thu Jul 17, 12:29 am)
[PATCH 09/23] tracehook: tracehook_expect_breakpoints, Roland McGrath, (Thu Jul 17, 12:29 am)
[PATCH 10/23] tracehook: tracehook_signal_handler, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 11/23] tracehook: tracehook_consider_ignored_signal, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 12/23] tracehook: tracehook_consider_fatal_signal, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 13/23] tracehook: syscall, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 14/23] tracehook: get_signal_to_deliver, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 15/23] tracehook: job control, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 16/23] tracehook: death, Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 17/23] tracehook: force signal_pending(), Roland McGrath, (Thu Jul 17, 12:30 am)
[PATCH 18/23] tracehook: TIF_NOTIFY_RESUME, Roland McGrath, (Thu Jul 17, 12:31 am)
[PATCH 19/23] tracehook: asm/syscall.h, Roland McGrath, (Thu Jul 17, 12:31 am)
[PATCH 20/23] tracehook: CONFIG_HAVE_ARCH_TRACEHOOK, Roland McGrath, (Thu Jul 17, 12:31 am)
[PATCH 21/23] tracehook: wait_task_inactive, Roland McGrath, (Thu Jul 17, 12:31 am)
[PATCH 22/23] task_current_syscall, Roland McGrath, (Thu Jul 17, 12:31 am)
[PATCH 23/23] /proc/PID/syscall, Roland McGrath, (Thu Jul 17, 12:31 am)
Re: [PATCH 00/23] tracehook, Andrew Morton, (Thu Jul 17, 12:39 am)
Re: [PATCH 00/23] tracehook, Roland McGrath, (Thu Jul 17, 1:11 am)
Re: [PATCH 00/23] tracehook, Andrew Morton, (Thu Jul 17, 1:30 am)
Re: [PATCH 00/23] tracehook, Roland McGrath, (Thu Jul 17, 1:37 am)
Re: [PATCH 01/23] tracehook: add linux/tracehook.h, Alexey Dobriyan, (Thu Jul 17, 1:48 am)
Re: [PATCH 00/23] tracehook, Andrew Morton, (Thu Jul 17, 1:51 am)
Re: [PATCH 01/23] tracehook: add linux/tracehook.h, Petr Tesarik, (Thu Jul 17, 4:06 am)
Re: [PATCH 01/23] tracehook: add linux/tracehook.h, Christoph Hellwig, (Thu Jul 17, 6:34 am)
Re: [PATCH 01/23] tracehook: add linux/tracehook.h, Alexey Dobriyan, (Thu Jul 17, 2:50 pm)
Re: [PATCH 23/23] /proc/PID/syscall, Alexey Dobriyan, (Thu Jul 17, 3:56 pm)
Re: [PATCH 00/23] tracehook, Ingo Molnar, (Fri Jul 18, 1:07 am)
Re: [PATCH 00/23] tracehook, David Miller, (Fri Jul 18, 2:20 am)
Re: [PATCH 00/23] tracehook, Andi Kleen, (Fri Jul 18, 4:24 am)
Re: [PATCH 00/23] tracehook, David Miller, (Fri Jul 18, 4:32 am)
Re: [PATCH 01/23] tracehook: add linux/tracehook.h, Petr Tesarik, (Fri Jul 18, 4:57 am)
Re: [PATCH 23/23] /proc/PID/syscall, Roland McGrath, (Mon Jul 21, 1:19 am)
Re: [PATCH 02/23] tracehook: exec, Christoph Hellwig, (Mon Jul 21, 1:49 am)
Re: [PATCH 00/23] tracehook, Roland McGrath, (Mon Jul 21, 2:59 am)
Re: [PATCH 00/23] tracehook, Roland McGrath, (Mon Jul 21, 3:54 am)
Re: [PATCH 00/23] tracehook, David Miller, (Mon Jul 21, 8:18 am)