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/*
* 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 >
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* Copyright ( c ) 2014 - 2018 The strace developers .
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* 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 .
*/
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# include "defs.h"
# ifndef FUTEX_PRIVATE_FLAG
# define FUTEX_PRIVATE_FLAG 128
# endif
# ifndef FUTEX_CLOCK_REALTIME
# define FUTEX_CLOCK_REALTIME 256
# endif
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# ifndef FUTEX_OP_OPARG_SHIFT
# define FUTEX_OP_OPARG_SHIFT 8
# endif
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# include "xlat/futexbitset.h"
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# include "xlat/futexops.h"
# include "xlat/futexwakeops.h"
# include "xlat/futexwakecmps.h"
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SYS_FUNC ( futex )
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{
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const kernel_ulong_t uaddr = tcp - > u_arg [ 0 ] ;
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const int op = tcp - > u_arg [ 1 ] ;
const int cmd = op & 127 ;
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const kernel_ulong_t timeout = tcp - > u_arg [ 3 ] ;
const kernel_ulong_t uaddr2 = tcp - > u_arg [ 4 ] ;
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const unsigned int val = tcp - > u_arg [ 2 ] ;
const unsigned int val2 = tcp - > u_arg [ 3 ] ;
const unsigned int val3 = tcp - > u_arg [ 5 ] ;
Introduce tprintf_comment and tprints_comment functions
* defs.h (tprintf_comment, tprints_comment): New prototypes.
* strace.c (tvprintf): New function.
(tprintf): Use it.
(tprintf_comment, tprints_comment): New functions.
* aio.c (tprint_lio_opcode): Use tprints_comment.
* dm.c (dm_decode_dm_target_spec, dm_decode_dm_target_deps,
dm_decode_dm_name_list, dm_decode_dm_target_versions,
dm_decode_dm_target_msg, dm_decode_string, dm_known_ioctl): Likewise.
* futex.c (SYS_FUNC(futex)): Likewise.
* perf.c (print_perf_event_attr): Likewise.
* seccomp.c (decode_bpf_code): Likewise.
* util.c (printxvals, printxval_searchn, printflags64): Likewise.
* btrfs.c (print_u64, btrfs_print_key_type, btrfs_print_objectid,
print_key_value_internal): Likewise.
(btrfs_ioctl): Use tprints_comment and tprintf_comment.
* dirent.c (SYS_FUNC(getdents)): Likewise.
* dirent64.c (SYS_FUNC(getdents64)): Likewise.
* execve.c (printargc): Use tprintf_comment.
* tests/btrfs.c (btrfs_test_get_dev_stats_ioctl,
btrfs_test_features_ioctls): Update expected output.
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const char * comment ;
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printaddr ( uaddr ) ;
tprints ( " , " ) ;
printxval ( futexops , op , " FUTEX_??? " ) ;
switch ( cmd ) {
case FUTEX_WAIT :
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tprintf ( " , %u " , val ) ;
tprints ( " , " ) ;
print_timespec ( tcp , timeout ) ;
break ;
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case FUTEX_LOCK_PI :
tprints ( " , " ) ;
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print_timespec ( tcp , timeout ) ;
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break ;
case FUTEX_WAIT_BITSET :
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tprintf ( " , %u " , val ) ;
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tprints ( " , " ) ;
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print_timespec ( tcp , timeout ) ;
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tprints ( " , " ) ;
printxval ( futexbitset , val3 , NULL ) ;
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break ;
case FUTEX_WAKE_BITSET :
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tprintf ( " , %u " , val ) ;
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tprints ( " , " ) ;
printxval ( futexbitset , val3 , NULL ) ;
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break ;
case FUTEX_REQUEUE :
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tprintf ( " , %u " , val ) ;
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tprintf ( " , %u, " , val2 ) ;
printaddr ( uaddr2 ) ;
break ;
case FUTEX_CMP_REQUEUE :
case FUTEX_CMP_REQUEUE_PI :
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tprintf ( " , %u " , val ) ;
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tprintf ( " , %u, " , val2 ) ;
printaddr ( uaddr2 ) ;
tprintf ( " , %u " , val3 ) ;
break ;
case FUTEX_WAKE_OP :
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tprintf ( " , %u " , val ) ;
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tprintf ( " , %u, " , val2 ) ;
printaddr ( uaddr2 ) ;
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tprints ( " , " ) ;
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if ( ( val3 > > 28 ) & FUTEX_OP_OPARG_SHIFT ) {
print_xlat ( FUTEX_OP_OPARG_SHIFT ) ;
tprints ( " <<28| " ) ;
}
Introduce tprintf_comment and tprints_comment functions
* defs.h (tprintf_comment, tprints_comment): New prototypes.
* strace.c (tvprintf): New function.
(tprintf): Use it.
(tprintf_comment, tprints_comment): New functions.
* aio.c (tprint_lio_opcode): Use tprints_comment.
* dm.c (dm_decode_dm_target_spec, dm_decode_dm_target_deps,
dm_decode_dm_name_list, dm_decode_dm_target_versions,
dm_decode_dm_target_msg, dm_decode_string, dm_known_ioctl): Likewise.
* futex.c (SYS_FUNC(futex)): Likewise.
* perf.c (print_perf_event_attr): Likewise.
* seccomp.c (decode_bpf_code): Likewise.
* util.c (printxvals, printxval_searchn, printflags64): Likewise.
* btrfs.c (print_u64, btrfs_print_key_type, btrfs_print_objectid,
print_key_value_internal): Likewise.
(btrfs_ioctl): Use tprints_comment and tprintf_comment.
* dirent.c (SYS_FUNC(getdents)): Likewise.
* dirent64.c (SYS_FUNC(getdents64)): Likewise.
* execve.c (printargc): Use tprintf_comment.
* tests/btrfs.c (btrfs_test_get_dev_stats_ioctl,
btrfs_test_features_ioctls): Update expected output.
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comment = printxval ( futexwakeops , ( val3 > > 28 ) & 0x7 , NULL )
? NULL : " FUTEX_OP_??? " ;
tprints ( " <<28 " ) ;
tprints_comment ( comment ) ;
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tprintf ( " |%#x<<12| " , ( val3 > > 12 ) & 0xfff ) ;
Introduce tprintf_comment and tprints_comment functions
* defs.h (tprintf_comment, tprints_comment): New prototypes.
* strace.c (tvprintf): New function.
(tprintf): Use it.
(tprintf_comment, tprints_comment): New functions.
* aio.c (tprint_lio_opcode): Use tprints_comment.
* dm.c (dm_decode_dm_target_spec, dm_decode_dm_target_deps,
dm_decode_dm_name_list, dm_decode_dm_target_versions,
dm_decode_dm_target_msg, dm_decode_string, dm_known_ioctl): Likewise.
* futex.c (SYS_FUNC(futex)): Likewise.
* perf.c (print_perf_event_attr): Likewise.
* seccomp.c (decode_bpf_code): Likewise.
* util.c (printxvals, printxval_searchn, printflags64): Likewise.
* btrfs.c (print_u64, btrfs_print_key_type, btrfs_print_objectid,
print_key_value_internal): Likewise.
(btrfs_ioctl): Use tprints_comment and tprintf_comment.
* dirent.c (SYS_FUNC(getdents)): Likewise.
* dirent64.c (SYS_FUNC(getdents64)): Likewise.
* execve.c (printargc): Use tprintf_comment.
* tests/btrfs.c (btrfs_test_get_dev_stats_ioctl,
btrfs_test_features_ioctls): Update expected output.
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comment = printxval ( futexwakecmps , ( val3 > > 24 ) & 0xf , NULL )
? NULL : " FUTEX_OP_CMP_??? " ;
tprints ( " <<24 " ) ;
tprints_comment ( comment ) ;
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tprintf ( " |%#x " , val3 & 0xfff ) ;
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break ;
case FUTEX_WAIT_REQUEUE_PI :
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tprintf ( " , %u " , val ) ;
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tprints ( " , " ) ;
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print_timespec ( tcp , timeout ) ;
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tprints ( " , " ) ;
printaddr ( uaddr2 ) ;
break ;
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case FUTEX_FD :
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case FUTEX_WAKE :
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tprintf ( " , %u " , val ) ;
break ;
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case FUTEX_UNLOCK_PI :
case FUTEX_TRYLOCK_PI :
break ;
default :
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tprintf ( " , %u " , val ) ;
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tprints ( " , " ) ;
printaddr ( timeout ) ;
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tprints ( " , " ) ;
printaddr ( uaddr2 ) ;
tprintf ( " , %#x " , val3 ) ;
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break ;
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}
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return RVAL_DECODED ;
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}