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strace/futex.c

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Add copyright headers to some files which lack them 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.
2015-12-17 17:56:48 +00:00
/*
* Copyright (c) 2002-2003 Roland McGrath <roland@redhat.com>
* Copyright (c) 2007-2008 Ulrich Drepper <drepper@redhat.com>
* Copyright (c) 2009 Andreas Schwab <schwab@redhat.com>
* Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
process.c: move futex parser to a separate file * futex.c: New file. * Makefile.am (strace_SOURCES): Add it. * process.c: Move sys_futex and related code to futex.c.
2014-12-11 19:25:02 +00:00
#include "defs.h"
#ifndef FUTEX_PRIVATE_FLAG
# define FUTEX_PRIVATE_FLAG 128
#endif
#ifndef FUTEX_CLOCK_REALTIME
# define FUTEX_CLOCK_REALTIME 256
#endif
futex: move fallback definitions of futex constants to xlat/ * futex.c: Move definitions of FUTEX_OP_CMP_* constants ... * xlat/futexwakecmps.in: ... here. * futex.c: Move definitions of other FUTEX_OP_* constants ... * xlat/futexwakeops.in: ... here. * futex.c: Move definitions of remaining FUTEX_* constants except FUTEX_PRIVATE_FLAG and FUTEX_CLOCK_REALTIME flags ... * xlat/futexops.in: ... here.
2015-06-17 19:00:17 +00:00
process.c: move futex parser to a separate file * futex.c: New file. * Makefile.am (strace_SOURCES): Add it. * process.c: Move sys_futex and related code to futex.c.
2014-12-11 19:25:02 +00:00
#include "xlat/futexops.h"
#include "xlat/futexwakeops.h"
#include "xlat/futexwakecmps.h"
Declare syscall parsers using SYS_FUNC macro Introduce SYS_FUNC macro to declare and define all syscall parsers. * Makefile.am (BUILT_SOURCES, CLEANFILES): Add sys_func.h. (sys_func.h): New rule. * defs.h (SYS_FUNC_NAME, SYS_FUNC): New macros. * linux/syscall.h: Include "sys_func.h". [NEED_UID16_PARSERS]: Use SYS_FUNC to declare uid16 syscall parsers. Remove other declarations. * linux/alpha/syscallent.h (160, 161): Add sys_ prefix to osf_statfs and osf_fstatfs syscall parsers. * *.c: Use SYS_FUNC to define syscall parsers.
2015-04-07 01:36:50 +00:00
SYS_FUNC(futex)
process.c: move futex parser to a separate file * futex.c: New file. * Makefile.am (strace_SOURCES): Add it. * process.c: Move sys_futex and related code to futex.c.
2014-12-11 19:25:02 +00:00
{
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
const long uaddr = tcp->u_arg[0];
const int op = tcp->u_arg[1];
const int cmd = op & 127;
const long timeout = tcp->u_arg[3];
const long uaddr2 = tcp->u_arg[4];
const unsigned int val = tcp->u_arg[2];
const unsigned int val2 = tcp->u_arg[3];
const unsigned int val3 = tcp->u_arg[5];
printaddr(uaddr);
tprints(", ");
printxval(futexops, op, "FUTEX_???");
switch (cmd) {
case FUTEX_WAIT:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
tprints(", ");
print_timespec(tcp, timeout);
break;
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
case FUTEX_LOCK_PI:
tprints(", ");
Convert parser of struct timespec to new mpers infrastructure * defs.h (print_timespec): Remove. * print_time.c (print_timespec): New mpers printer. * futex.c (sys_futex): Use print_timespec instead of printtv. * ipc_sem.c (sys_semtimedop): Likewise. * mq.c (sys_mq_timedsend, sys_mq_timedreceive): Likewise. * time.c (clock_settime, clock_gettime, clock_nanosleep): Likewise. (print_timespec): Remove.
2015-09-18 15:16:11 +00:00
print_timespec(tcp, timeout);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
break;
case FUTEX_WAIT_BITSET:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprints(", ");
Convert parser of struct timespec to new mpers infrastructure * defs.h (print_timespec): Remove. * print_time.c (print_timespec): New mpers printer. * futex.c (sys_futex): Use print_timespec instead of printtv. * ipc_sem.c (sys_semtimedop): Likewise. * mq.c (sys_mq_timedsend, sys_mq_timedreceive): Likewise. * time.c (clock_settime, clock_gettime, clock_nanosleep): Likewise. (print_timespec): Remove.
2015-09-18 15:16:11 +00:00
print_timespec(tcp, timeout);
futex: fix formatting of val3 hexadecimal argument * futex.c (SYS_FUNC(futex)): In FUTEX_WAIT_BITSET and FUTEX_WAKE_BITSET, print hexadecimal val3 argument in alternate form to avoid confusion.
2016-08-30 00:00:58 +03:00
tprintf(", %#x", val3);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
break;
case FUTEX_WAKE_BITSET:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex: fix formatting of val3 hexadecimal argument * futex.c (SYS_FUNC(futex)): In FUTEX_WAIT_BITSET and FUTEX_WAKE_BITSET, print hexadecimal val3 argument in alternate form to avoid confusion.
2016-08-30 00:00:58 +03:00
tprintf(", %#x", val3);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
break;
case FUTEX_REQUEUE:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprintf(", %u, ", val2);
printaddr(uaddr2);
break;
case FUTEX_CMP_REQUEUE:
case FUTEX_CMP_REQUEUE_PI:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprintf(", %u, ", val2);
printaddr(uaddr2);
tprintf(", %u", val3);
break;
case FUTEX_WAKE_OP:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprintf(", %u, ", val2);
printaddr(uaddr2);
tprints(", {");
if ((val3 >> 28) & 8)
tprints("FUTEX_OP_OPARG_SHIFT|");
printxval(futexwakeops, (val3 >> 28) & 0x7, "FUTEX_OP_???");
tprintf(", %u, ", (val3 >> 12) & 0xfff);
futex: fix FUTEX_WAKE_OP compare function mask According to the initial and current (v4.7) kernel implementations, in FUTEX_WAKE_OP case the compare function does not have FUTEX_OP_OPARG_SHIFT flag and occupies 4 bits starting with bit 24. * futex.c (SYS_FUNC(futex)): Do not print FUTEX_OP_OPARG_SHIFT for 27th bit of val3 in FUTEX_WAKE_OP case.
2016-08-29 23:56:24 +03:00
printxval(futexwakecmps, (val3 >> 24) & 0xf, "FUTEX_OP_CMP_???");
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprintf(", %u}", val3 & 0xfff);
break;
case FUTEX_WAIT_REQUEUE_PI:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprints(", ");
Convert parser of struct timespec to new mpers infrastructure * defs.h (print_timespec): Remove. * print_time.c (print_timespec): New mpers printer. * futex.c (sys_futex): Use print_timespec instead of printtv. * ipc_sem.c (sys_semtimedop): Likewise. * mq.c (sys_mq_timedsend, sys_mq_timedreceive): Likewise. * time.c (clock_settime, clock_gettime, clock_nanosleep): Likewise. (print_timespec): Remove.
2015-09-18 15:16:11 +00:00
print_timespec(tcp, timeout);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
tprints(", ");
printaddr(uaddr2);
break;
futex: add handling of FUTEX_FD command Since obsolete FUTEX_FD command is known and used to have some expected argument format, print FUTEX_FD using that format. * futex.c (SYS_FUNC(futex)): Handle FUTEX_FD command.
2016-08-29 23:57:38 +03:00
case FUTEX_FD:
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
case FUTEX_WAKE:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
break;
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
case FUTEX_UNLOCK_PI:
case FUTEX_TRYLOCK_PI:
break;
default:
futex: avoid printing val when it is not used by the futex command This is analogous to timeout argument omitting in FUTEX_WAKE_BITSET command. * futex.c (SYS_FUNC(futex)): Remove common printing of val argument. Add printing of val argument for all futex commands except FUTEX_LOCK_PI, FUTEX_UNLOCK_PI, and FUTEX_TRYLOCK_PI.
2016-08-30 00:01:45 +03:00
tprintf(", %u", val);
futex: fix formatting of unknown command argument Use alternate form for printing hexadecimal numbers to avoid confusion. Use printaddr to print uaddr as the latter is interpreted as a pointer in all currently supported futex operations. * futex.c (SYS_FUNC(futex)): Fix formatting of unknown command argument.
2016-08-29 23:59:01 +03:00
tprintf(", %#lx", timeout);
tprints(", ");
printaddr(uaddr2);
tprintf(", %#x", val3);
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
break;
process.c: move futex parser to a separate file * futex.c: New file. * Makefile.am (strace_SOURCES): Add it. * process.c: Move sys_futex and related code to futex.c.
2014-12-11 19:25:02 +00:00
}
futex.c: enhance futex syscall decoding * futex.c (sys_futex): Use switch statement. Use printaddr. Print uint32_t syscall arguments using %u format. Update for RVAL_DECODED.
2015-07-20 13:15:51 +00:00
return RVAL_DECODED;
process.c: move futex parser to a separate file * futex.c: New file. * Makefile.am (strace_SOURCES): Add it. * process.c: Move sys_futex and related code to futex.c.
2014-12-11 19:25:02 +00:00
}
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