Eugene Syromyatnikov 9baa6bcc88 Print ISO 8601 time for wall clock time values
Add an argument to print_time* routines that signalises, whether
the time value is wall clock time or not.

* aio.c (print_io_getevents): Add an argument to print_timespec call.
* defs.h (print_timeval32_t, print_timeval32, print_itimerval32): Add
"bool rtc" argument.
* desc.c (decode_select): Add bool argument to print_tv_ts callback
function argument.
* futex.c (SYS_FUNC(futex)) <case FUTEX_WAIT>: Call print_timespec with
rtc=false, as the timestamp is always relative.
<case FUTEX_LOCK_PI>: Call print_timespec with rtc=true, as the timeout
is always absolute.
<case FUTEX_WAIT_BITSET, case FUTEX_WAIT_REQUEUE_PI>: Call
print_timespec with rtc set to true when op has FUTEX_CLOCK_REALTIME
flag.
* ipc_sem.c (SYS_FUNC(semtimedop)): Call print_timespec with rtc=false,
as timeout is always relative.
* linux/dummy.h (sys_clock_getres, sys_stime): Remove.
* mmsghdr.c (SYS_FUNC(recvmmsg)): Call print_timespec with rtc=false, as
timeout is relative.
* mq.c (SYS_FUNC(mq_timedsend), SYS_FUNC(mq_timedreceive)): Call
print_timespec with rtc=true, as timeout is absolute.
* msghdr.c (print_scm_timestamp, print_scm_timestampns,
print_scm_timestamping): Call print_struct_timeval_data_size,
print_struct_timespec_data_size, print_struct_timespec_array_data_size
with rtc=true as timestamps presumed absolute.
* poll.c (SYS_FUNC(ppoll)): Call print_timespec with rtc=false, as
timeout is relative.
* print_time.c (print_time_t): New function.
(SYS_FUNC(time)): Use print_time_t for printing time.
(SYS_FUNC(stime)): New function.
* print_timespec.c (print_timespec_t, print_struct_timespec_data_size,
print_struct_timespec_array_data_size, print_timespec): Add rtc argument,
handle it.
(print_timespec_t_utime): Call print_timespec_t with rtc=false when
xlat_style is not abbreviated, call print_timespec_t with rtc=true
instead of manual time stamp printing.
(print_itimerspec): Call print_timespec_t with rtc=false.
* print_timeval.c (print_timeval_t, print_struct_timeval_data_size,
print_timeval, print_itimerval, print_timeval32_t, print_timeval32):
Add rtc argument, handle it.
(print_timeval_t_utime, print_timeval32_t_utime): Remove.
(print_struct_timeval): New function.
(print_timeval_utimes): Use print_struct_timeval instead of
print_timeval_t_utime.
* print_timex.c (print_timex): Add rtc argument, handle it.
* printrusage.c (printrusage): Call print_struct_timeval with rtc=false.
* sched.c (sched_rr_get_interval): Call print_timespec with rtc=false.
* signal.c (rt_sigtimedwait): Call print_timespec with rtc=false.
* time.c: Include "xlat/clocknames.h" under XLAT_MACROS_ONLY.
(gettimeofday, settimeofday): Call print_timeval with rtc=true.
(osf_gettimeofday, osf_settimeofday): Call print_timeval32 with rtc=true.
(nanosleep): Call print_timespec with rtc=false.
(getitimer, setitimer): Call print_itimerval with rtc=false.
(osf_getitimer, osf_setitimer): Call print_itimerval32 wirh rtc=false.
(do_adjtimex): Add rtc argument, handle it.
(is_rtcid): New function.
(clock_settime, clock_gettime): Call print_timespec with rtc=true if 0th
argument is a real-time clock (as indicated by is_rtcid).
(SYS_FUNC(clock_getres)): New syscall decoder.
(SYS_FUNC(clock_nanosleep)): Call print_timespec with rtc=true if clock
is realtime (as indicated by is_rtcid) and TIMER_ABSTIME is set in flags.
(SYS_FUNC(clock_adjtime)): Call do_adjtimex with rtc=true if clock is
realtime.
* tests/adjtimex.c: Update expected output.
* tests/clock_nanosleep.c: Likewise.
2018-10-07 06:00:36 +02:00

292 lines
7.2 KiB
C

/*
* 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>
* Copyright (c) 1999-2018 The strace developers.
* 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 "print_fields.h"
#include <linux/aio_abi.h>
#include "xlat/aio_cmds.h"
#include "xlat/aio_iocb_flags.h"
#ifdef HAVE_STRUCT_IOCB_AIO_RW_FLAGS
# define AIO_RW_FLAGS_FIELD aio_rw_flags
#else
# define AIO_RW_FLAGS_FIELD aio_reserved1
#endif
SYS_FUNC(io_setup)
{
if (entering(tcp))
tprintf("%u, ", (unsigned int) tcp->u_arg[0]);
else
printnum_ptr(tcp, tcp->u_arg[1]);
return 0;
}
SYS_FUNC(io_destroy)
{
printaddr(tcp->u_arg[0]);
return RVAL_DECODED;
}
enum iocb_sub {
SUB_NONE, SUB_COMMON, SUB_VECTOR, SUB_POLL
};
static enum iocb_sub
tprint_lio_opcode(unsigned int cmd)
{
static const enum iocb_sub subs[] = {
[IOCB_CMD_PREAD] = SUB_COMMON,
[IOCB_CMD_PWRITE] = SUB_COMMON,
[IOCB_CMD_FSYNC] = SUB_NONE,
[IOCB_CMD_FDSYNC] = SUB_NONE,
[IOCB_CMD_PREADX] = SUB_NONE,
[IOCB_CMD_POLL] = SUB_POLL,
[IOCB_CMD_NOOP] = SUB_NONE,
[IOCB_CMD_PREADV] = SUB_VECTOR,
[IOCB_CMD_PWRITEV] = SUB_VECTOR,
};
printxval_ex(aio_cmds, cmd, "IOCB_CMD_???", XLAT_STYLE_FMT_U);
return cmd < ARRAY_SIZE(subs) ? subs[cmd] : SUB_NONE;
}
static void
print_common_flags(struct tcb *tcp, const struct iocb *cb)
{
if (cb->aio_flags)
PRINT_FIELD_FLAGS(", ", *cb, aio_flags, aio_iocb_flags,
"IOCB_FLAG_???");
if (cb->aio_flags & IOCB_FLAG_RESFD)
PRINT_FIELD_FD(", ", *cb, aio_resfd, tcp);
else if (cb->aio_resfd)
PRINT_FIELD_X(", ", *cb, aio_resfd);
}
static bool
iocb_is_valid(const struct iocb *cb)
{
return cb->aio_buf == (unsigned long) cb->aio_buf &&
cb->aio_nbytes == (size_t) cb->aio_nbytes &&
(ssize_t) cb->aio_nbytes >= 0;
}
static enum iocb_sub
print_iocb_header(struct tcb *tcp, const struct iocb *cb)
{
enum iocb_sub sub;
PRINT_FIELD_X("", *cb, aio_data);
if (cb->aio_key)
PRINT_FIELD_U(", ", *cb, aio_key);
if (cb->AIO_RW_FLAGS_FIELD) {
tprints(", aio_rw_flags=");
printflags(rwf_flags, cb->AIO_RW_FLAGS_FIELD, "RWF_???");
}
tprints(", aio_lio_opcode=");
sub = tprint_lio_opcode(cb->aio_lio_opcode);
if (cb->aio_flags & IOCB_FLAG_IOPRIO) {
tprints(", aio_reqprio=");
print_ioprio(zero_extend_signed_to_ull(cb->aio_reqprio));
} else if (cb->aio_reqprio) {
PRINT_FIELD_D(", ", *cb, aio_reqprio);
}
PRINT_FIELD_FD(", ", *cb, aio_fildes, tcp);
return sub;
}
static void
print_iocb(struct tcb *tcp, const struct iocb *cb)
{
tprints("{");
enum iocb_sub sub = print_iocb_header(tcp, cb);
switch (sub) {
case SUB_COMMON:
if (cb->aio_lio_opcode == 1 && iocb_is_valid(cb)) {
PRINT_FIELD_STRN(", ", *cb, aio_buf,
cb->aio_nbytes, tcp);
} else {
PRINT_FIELD_X(", ", *cb, aio_buf);
}
PRINT_FIELD_U(", ", *cb, aio_nbytes);
PRINT_FIELD_D(", ", *cb, aio_offset);
print_common_flags(tcp, cb);
break;
case SUB_VECTOR:
if (iocb_is_valid(cb)) {
tprints(", aio_buf=");
tprint_iov(tcp, cb->aio_nbytes, cb->aio_buf,
cb->aio_lio_opcode == 8
? IOV_DECODE_STR
: IOV_DECODE_ADDR);
} else {
PRINT_FIELD_X(", ", *cb, aio_buf);
PRINT_FIELD_U(", ", *cb, aio_nbytes);
}
PRINT_FIELD_D(", ", *cb, aio_offset);
print_common_flags(tcp, cb);
break;
case SUB_POLL:
PRINT_FIELD_FLAGS(", ", *cb, aio_buf, pollflags, "POLL???");
print_common_flags(tcp, cb);
break;
case SUB_NONE:
break;
}
tprints("}");
}
static bool
print_iocbp(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
kernel_ulong_t addr;
struct iocb cb;
if (elem_size < sizeof(kernel_ulong_t)) {
addr = *(unsigned int *) elem_buf;
} else {
addr = *(kernel_ulong_t *) elem_buf;
}
if (!umove_or_printaddr(tcp, addr, &cb))
print_iocb(tcp, &cb);
return true;
}
SYS_FUNC(io_submit)
{
const kernel_long_t nr =
truncate_klong_to_current_wordsize(tcp->u_arg[1]);
const kernel_ulong_t addr = tcp->u_arg[2];
kernel_ulong_t iocbp;
printaddr(tcp->u_arg[0]);
tprintf(", %" PRI_kld ", ", nr);
if (nr < 0)
printaddr(addr);
else
print_array(tcp, addr, nr, &iocbp, current_wordsize,
tfetch_mem, print_iocbp, 0);
return RVAL_DECODED;
}
static bool
print_io_event(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
struct io_event *event = elem_buf;
PRINT_FIELD_X("{", *event, data);
PRINT_FIELD_X(", ", *event, obj);
PRINT_FIELD_D(", ", *event, res);
PRINT_FIELD_D(", ", *event, res2);
tprints("}");
return true;
}
SYS_FUNC(io_cancel)
{
if (entering(tcp)) {
printaddr(tcp->u_arg[0]);
tprints(", ");
struct iocb cb;
if (!umove_or_printaddr(tcp, tcp->u_arg[1], &cb)) {
tprints("{");
print_iocb_header(tcp, &cb);
tprints("}");
}
tprints(", ");
} else {
struct io_event event;
if (!umove_or_printaddr(tcp, tcp->u_arg[2], &event))
print_io_event(tcp, &event, sizeof(event), 0);
}
return 0;
}
static int
print_io_getevents(struct tcb *tcp, bool has_usig)
{
if (entering(tcp)) {
printaddr(tcp->u_arg[0]);
tprintf(", %" PRI_kld ", %" PRI_kld ", ",
truncate_klong_to_current_wordsize(tcp->u_arg[1]),
truncate_klong_to_current_wordsize(tcp->u_arg[2]));
} else {
struct io_event buf;
print_array(tcp, tcp->u_arg[3], tcp->u_rval, &buf, sizeof(buf),
tfetch_mem, print_io_event, 0);
tprints(", ");
/*
* Since the timeout and usig parameters are read by the kernel
* on entering syscall, it has to be decoded the same way
* whether the syscall has failed or not.
*/
temporarily_clear_syserror(tcp);
print_timespec(tcp, tcp->u_arg[4], false);
if (has_usig) {
tprints(", ");
print_aio_sigset(tcp, tcp->u_arg[5]);
}
restore_cleared_syserror(tcp);
}
return 0;
}
SYS_FUNC(io_getevents)
{
return print_io_getevents(tcp, false);
}
SYS_FUNC(io_pgetevents)
{
return print_io_getevents(tcp, true);
}