Dmitry V. Levin
38a34c9349
Before this change, all files that exist since 20th century had copyright headers, while most files that appeared later didn't. This change fixes the inconsistency by adding missing copyright headers. It doesn't mean that copyright headers became maintained. In my view, git history provides much better information on this subject and is much more accurate than copyright headers.
117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/*
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* Copyright (c) 2002-2003 Roland McGrath <roland@redhat.com>
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* Copyright (c) 2007-2008 Ulrich Drepper <drepper@redhat.com>
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* Copyright (c) 2009 Andreas Schwab <schwab@redhat.com>
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* Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#ifdef HAVE_LINUX_FUTEX_H
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# include <linux/futex.h>
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#endif
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#ifndef FUTEX_PRIVATE_FLAG
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# define FUTEX_PRIVATE_FLAG 128
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#endif
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#ifndef FUTEX_CLOCK_REALTIME
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# define FUTEX_CLOCK_REALTIME 256
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#endif
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#include "xlat/futexops.h"
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#include "xlat/futexwakeops.h"
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#include "xlat/futexwakecmps.h"
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SYS_FUNC(futex)
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{
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const long uaddr = tcp->u_arg[0];
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const int op = tcp->u_arg[1];
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const int cmd = op & 127;
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const long timeout = tcp->u_arg[3];
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const long uaddr2 = tcp->u_arg[4];
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const unsigned int val = tcp->u_arg[2];
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const unsigned int val2 = tcp->u_arg[3];
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const unsigned int val3 = tcp->u_arg[5];
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printaddr(uaddr);
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tprints(", ");
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printxval(futexops, op, "FUTEX_???");
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tprintf(", %u", val);
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switch (cmd) {
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case FUTEX_WAIT:
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case FUTEX_LOCK_PI:
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tprints(", ");
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print_timespec(tcp, timeout);
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break;
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case FUTEX_WAIT_BITSET:
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tprints(", ");
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print_timespec(tcp, timeout);
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tprintf(", %x", val3);
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break;
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case FUTEX_WAKE_BITSET:
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tprintf(", %x", val3);
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break;
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case FUTEX_REQUEUE:
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tprintf(", %u, ", val2);
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printaddr(uaddr2);
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break;
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case FUTEX_CMP_REQUEUE:
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case FUTEX_CMP_REQUEUE_PI:
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tprintf(", %u, ", val2);
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printaddr(uaddr2);
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tprintf(", %u", val3);
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break;
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case FUTEX_WAKE_OP:
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tprintf(", %u, ", val2);
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printaddr(uaddr2);
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tprints(", {");
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if ((val3 >> 28) & 8)
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tprints("FUTEX_OP_OPARG_SHIFT|");
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printxval(futexwakeops, (val3 >> 28) & 0x7, "FUTEX_OP_???");
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tprintf(", %u, ", (val3 >> 12) & 0xfff);
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if ((val3 >> 24) & 8)
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tprints("FUTEX_OP_OPARG_SHIFT|");
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printxval(futexwakecmps, (val3 >> 24) & 0x7, "FUTEX_OP_CMP_???");
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tprintf(", %u}", val3 & 0xfff);
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break;
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case FUTEX_WAIT_REQUEUE_PI:
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tprints(", ");
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print_timespec(tcp, timeout);
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tprints(", ");
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printaddr(uaddr2);
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break;
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case FUTEX_WAKE:
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case FUTEX_UNLOCK_PI:
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case FUTEX_TRYLOCK_PI:
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break;
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default:
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tprintf(", %lx, %lx, %x", timeout, uaddr2, val3);
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break;
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}
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return RVAL_DECODED;
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}
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