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/*
* Copyright (c) 2012 Denys Vlasenko <vda.linux@googlemail.com>
* Copyright (c) 2012-2015 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2014-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
SYS_FUNC(process_vm_readv)
{
if (entering(tcp)) {
/* arg 1: pid */
printpid(tcp, tcp->u_arg[0], PT_TGID);
tprints(", ");
} else {
kernel_ulong_t local_iovcnt = tcp->u_arg[2];
kernel_ulong_t remote_iovcnt = tcp->u_arg[4];
kernel_ulong_t flags = tcp->u_arg[5];
/* arg 2: local iov */
tprint_iov_upto(tcp, local_iovcnt, tcp->u_arg[1],
syserror(tcp) ? IOV_DECODE_ADDR : IOV_DECODE_STR,
tcp->u_rval);
/* arg 3: local iovcnt */
tprintf(", %" PRI_klu ", ", local_iovcnt);
/* arg 4: remote iov */
tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3],
IOV_DECODE_ADDR);
/* arg 5: remote iovcnt */
/* arg 6: flags */
tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags);
}
return 0;
}
SYS_FUNC(process_vm_writev)
{
kernel_ulong_t local_iovcnt = tcp->u_arg[2];
kernel_ulong_t remote_iovcnt = tcp->u_arg[4];
kernel_ulong_t flags = tcp->u_arg[5];
/* arg 1: pid */
printpid(tcp, tcp->u_arg[0], PT_TGID);
tprints(", ");
/* arg 2: local iov */
tprint_iov(tcp, local_iovcnt, tcp->u_arg[1], IOV_DECODE_STR);
/* arg 3: local iovcnt */
tprintf(", %" PRI_klu ", ", local_iovcnt);
/* arg 4: remote iov */
tprint_iov(tcp, remote_iovcnt, tcp->u_arg[3], IOV_DECODE_ADDR);
/* arg 5: remote iovcnt */
/* arg 6: flags */
tprintf(", %" PRI_klu ", %" PRI_klu, remote_iovcnt, flags);
return RVAL_DECODED;
}
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