| /* |
| * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl> |
| * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl> |
| * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com> |
| * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl> |
| * 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" |
| #include <fcntl.h> |
| #include <sys/uio.h> |
| |
| SYS_FUNC(read) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| } else { |
| if (syserror(tcp)) |
| printaddr(tcp->u_arg[1]); |
| else |
| printstr(tcp, tcp->u_arg[1], tcp->u_rval); |
| tprintf(", %lu", tcp->u_arg[2]); |
| } |
| return 0; |
| } |
| |
| SYS_FUNC(write) |
| { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]); |
| tprintf(", %lu", tcp->u_arg[2]); |
| |
| return RVAL_DECODED; |
| } |
| |
| /* |
| * data_size limits the cumulative size of printed data. |
| * Example: recvmsg returing a short read. |
| */ |
| void |
| tprint_iov_upto(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov, unsigned long data_size) |
| { |
| unsigned long iov[2]; |
| unsigned long size, cur, end, abbrev_end; |
| const unsigned long sizeof_iov = current_wordsize * 2; |
| |
| if (!len) { |
| tprints("[]"); |
| return; |
| } |
| size = len * sizeof_iov; |
| end = addr + size; |
| if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)) || |
| !addr || size / sizeof_iov != len || end < addr) { |
| printaddr(addr); |
| return; |
| } |
| if (abbrev(tcp)) { |
| abbrev_end = addr + max_strlen * sizeof_iov; |
| if (abbrev_end < addr) |
| abbrev_end = end; |
| } else { |
| abbrev_end = end; |
| } |
| tprints("["); |
| for (cur = addr; cur < end; cur += sizeof_iov) { |
| if (cur > addr) |
| tprints(", "); |
| if (cur >= abbrev_end) { |
| tprints("..."); |
| break; |
| } |
| if (umove_ulong_array_or_printaddr(tcp, cur, iov, |
| ARRAY_SIZE(iov))) |
| break; |
| tprints("{"); |
| if (decode_iov) { |
| unsigned long len = iov[1]; |
| if (len > data_size) |
| len = data_size; |
| data_size -= len; |
| printstr(tcp, iov[0], len); |
| } else |
| printaddr(iov[0]); |
| tprintf(", %lu}", iov[1]); |
| } |
| tprints("]"); |
| } |
| |
| void |
| tprint_iov(struct tcb *tcp, unsigned long len, unsigned long addr, int decode_iov) |
| { |
| tprint_iov_upto(tcp, len, addr, decode_iov, (unsigned long) -1L); |
| } |
| |
| SYS_FUNC(readv) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| } else { |
| tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1); |
| tprintf(", %lu", tcp->u_arg[2]); |
| } |
| return 0; |
| } |
| |
| SYS_FUNC(writev) |
| { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1); |
| tprintf(", %lu", tcp->u_arg[2]); |
| |
| return RVAL_DECODED; |
| } |
| |
| /* The SH4 ABI does allow long longs in odd-numbered registers, but |
| does not allow them to be split between registers and memory - and |
| there are only four argument registers for normal functions. As a |
| result pread takes an extra padding argument before the offset. This |
| was changed late in the 2.4 series (around 2.4.20). */ |
| #if defined(SH) |
| #define PREAD_OFFSET_ARG 4 |
| #else |
| #define PREAD_OFFSET_ARG 3 |
| #endif |
| |
| SYS_FUNC(pread) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| } else { |
| if (syserror(tcp)) |
| printaddr(tcp->u_arg[1]); |
| else |
| printstr(tcp, tcp->u_arg[1], tcp->u_rval); |
| tprintf(", %lu, ", tcp->u_arg[2]); |
| printllval(tcp, "%llu", PREAD_OFFSET_ARG); |
| } |
| return 0; |
| } |
| |
| SYS_FUNC(pwrite) |
| { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]); |
| tprintf(", %lu, ", tcp->u_arg[2]); |
| printllval(tcp, "%llu", PREAD_OFFSET_ARG); |
| |
| return RVAL_DECODED; |
| } |
| |
| static void |
| print_llu_from_low_high_val(struct tcb *tcp, int arg) |
| { |
| #if SIZEOF_LONG == SIZEOF_LONG_LONG |
| # if SUPPORTED_PERSONALITIES > 1 |
| if (current_wordsize == sizeof(long)) |
| # endif |
| tprintf("%lu", (unsigned long) tcp->u_arg[arg]); |
| # if SUPPORTED_PERSONALITIES > 1 |
| else |
| tprintf("%lu", |
| ((unsigned long) tcp->u_arg[arg + 1] << current_wordsize * 8) |
| | (unsigned long) tcp->u_arg[arg]); |
| # endif |
| #else |
| # ifdef X32 |
| if (current_personality == 0) |
| tprintf("%llu", (unsigned long long) tcp->ext_arg[arg]); |
| else |
| # endif |
| tprintf("%llu", |
| ((unsigned long long) (unsigned long) tcp->u_arg[arg + 1] << sizeof(long) * 8) |
| | (unsigned long long) (unsigned long) tcp->u_arg[arg]); |
| #endif |
| } |
| |
| SYS_FUNC(preadv) |
| { |
| if (entering(tcp)) { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| } else { |
| tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1); |
| tprintf(", %lu, ", tcp->u_arg[2]); |
| print_llu_from_low_high_val(tcp, 3); |
| } |
| return 0; |
| } |
| |
| SYS_FUNC(pwritev) |
| { |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1); |
| tprintf(", %lu, ", tcp->u_arg[2]); |
| print_llu_from_low_high_val(tcp, 3); |
| |
| return RVAL_DECODED; |
| } |
| |
| #include "xlat/splice_flags.h" |
| |
| SYS_FUNC(tee) |
| { |
| /* int fd_in */ |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| /* int fd_out */ |
| printfd(tcp, tcp->u_arg[1]); |
| tprints(", "); |
| /* size_t len */ |
| tprintf("%lu, ", tcp->u_arg[2]); |
| /* unsigned int flags */ |
| printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???"); |
| |
| return RVAL_DECODED; |
| } |
| |
| SYS_FUNC(splice) |
| { |
| /* int fd_in */ |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| /* loff_t *off_in */ |
| printnum_int64(tcp, tcp->u_arg[1], "%" PRIu64); |
| tprints(", "); |
| /* int fd_out */ |
| printfd(tcp, tcp->u_arg[2]); |
| tprints(", "); |
| /* loff_t *off_out */ |
| printnum_int64(tcp, tcp->u_arg[3], "%" PRIu64); |
| tprints(", "); |
| /* size_t len */ |
| tprintf("%lu, ", tcp->u_arg[4]); |
| /* unsigned int flags */ |
| printflags(splice_flags, tcp->u_arg[5], "SPLICE_F_???"); |
| |
| return RVAL_DECODED; |
| } |
| |
| SYS_FUNC(vmsplice) |
| { |
| /* int fd */ |
| printfd(tcp, tcp->u_arg[0]); |
| tprints(", "); |
| /* const struct iovec *iov, unsigned long nr_segs */ |
| tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], 1); |
| tprintf(", %lu, ", tcp->u_arg[2]); |
| /* unsigned int flags */ |
| printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???"); |
| |
| return RVAL_DECODED; |
| } |