strace/process_vm.c
Fabien Siron 2a54d8b257 Add a enum for decoding to tprint_iov() and tprint_iov_upto()
Introduce a new type iov_decode which will be used instead of the integer
"decode" as a parameter.

* defs.h (iov_decode): New enum.
(tprint_iov, tprint_iov_upto): Change type of "decode_iov" to enum iov_decode.
* aio.c (print_iocb): Change type of "decode_iov" to enum iov_decode in
tprint_iov() call.
* keyctl.c (keyctl_instantiate_key_iov): Likewise.
* process.c (ptrace): Likewise.
* process_vm.c (process_vm_readv, process_vm_writev): Likewise.
* io.c (writev, do_pwritev, vmsplice): Likewise.
(print_iovec): Replace the condition with a switch.
(tprint_iov_upto): Change type of "decode_iov" to enum iov_decode.
(readv, do_preadv): Change type of "decode_iov" to enum iov_decode in
tprint_iov_upto() call.
* scsi.c (print_sg_io_v3_req, print_sg_io_v3_res, print_sg_io_v4_req,
print_sg_io_v4_res): Likewise.
* net.c (do_msghdr): Adapt call of tprint_iov_upto().
2016-06-22 14:40:57 +00:00

76 lines
2.6 KiB
C

/*
* Copyright (c) 2012 Denys Vlasenko <vda.linux@googlemail.com>
* Copyright (c) 2012-2015 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.
*/
#include "defs.h"
SYS_FUNC(process_vm_readv)
{
if (entering(tcp)) {
/* arg 1: pid */
tprintf("%ld, ", tcp->u_arg[0]);
} else {
/* arg 2: local iov */
if (syserror(tcp)) {
printaddr(tcp->u_arg[1]);
} else {
tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1],
IOV_DECODE_STR);
}
/* arg 3: local iovcnt */
tprintf(", %lu, ", tcp->u_arg[2]);
/* arg 4: remote iov */
if (syserror(tcp)) {
printaddr(tcp->u_arg[3]);
} else {
tprint_iov(tcp, tcp->u_arg[4], tcp->u_arg[3],
IOV_DECODE_ADDR);
}
/* arg 5: remote iovcnt */
/* arg 6: flags */
tprintf(", %lu, %lu", tcp->u_arg[4], tcp->u_arg[5]);
}
return 0;
}
SYS_FUNC(process_vm_writev)
{
/* arg 1: pid */
tprintf("%ld, ", tcp->u_arg[0]);
/* arg 2: local iov */
tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], IOV_DECODE_STR);
/* arg 3: local iovcnt */
tprintf(", %lu, ", tcp->u_arg[2]);
/* arg 4: remote iov */
tprint_iov(tcp, tcp->u_arg[4], tcp->u_arg[3], IOV_DECODE_ADDR);
/* arg 5: remote iovcnt */
/* arg 6: flags */
tprintf(", %lu, %lu", tcp->u_arg[4], tcp->u_arg[5]);
return RVAL_DECODED;
}