* 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) 1996-2017 The strace developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <signal.h>
#include <sys/timex.h>
-#ifndef UTIME_NOW
-#define UTIME_NOW ((1l << 30) - 1l)
-#endif
-#ifndef UTIME_OMIT
-#define UTIME_OMIT ((1l << 30) - 2l)
-#endif
-
-#if SUPPORTED_PERSONALITIES > 1
-# if defined X86_64 || defined X32
-# define current_time_t_is_compat (current_personality == 1)
-# else
-# define current_time_t_is_compat (current_wordsize == 4)
-# endif
-# define current_time_t_is_int32 current_time_t_is_compat
-#else
-# define current_time_t_is_compat 0
-# define current_time_t_is_int32 (sizeof(time_t) == 4)
-#endif
-
-struct timeval32
-{
- u_int32_t tv_sec, tv_usec;
-};
-
-static void
-tprint_timeval32(struct tcb *tcp, const struct timeval32 *tv)
-{
- tprintf("{%u, %u}", tv->tv_sec, tv->tv_usec);
-}
-
static void
-tprint_timeval(struct tcb *tcp, const struct timeval *tv)
-{
- tprintf("{%ju, %ju}", (uintmax_t) tv->tv_sec, (uintmax_t) tv->tv_usec);
-}
-
-void
-printtv_bitness(struct tcb *tcp, long addr, enum bitness_t bitness, int special)
-{
- char buf[TIMEVAL_TEXT_BUFSIZE];
- sprinttv(buf, tcp, addr, bitness, special);
- tprints(buf);
-}
-
-static char *
-do_sprinttv(char *buf, const uintmax_t sec, const uintmax_t usec,
- const int special)
-{
- if (special) {
- switch (usec) {
- case UTIME_NOW:
- return stpcpy(buf, "UTIME_NOW");
- case UTIME_OMIT:
- return stpcpy(buf, "UTIME_OMIT");
- }
- }
- return buf + sprintf(buf, "{%ju, %ju}", sec, usec);
-}
-
-char *
-sprinttv(char *buf, struct tcb *tcp, long addr, enum bitness_t bitness, int special)
+print_timezone(struct tcb *const tcp, const kernel_ulong_t addr)
{
- if (addr == 0)
- return stpcpy(buf, "NULL");
+ struct timezone tz;
- if (!verbose(tcp) || (exiting(tcp) && syserror(tcp)))
- return buf + sprintf(buf, "%#lx", addr);
+ if (umove_or_printaddr(tcp, addr, &tz))
+ return;
- if (bitness == BITNESS_32 || current_time_t_is_compat)
- {
- struct timeval32 tv;
-
- if (umove(tcp, addr, &tv) >= 0)
- return do_sprinttv(buf, tv.tv_sec, tv.tv_usec, special);
- } else {
- struct timeval tv;
-
- if (umove(tcp, addr, &tv) >= 0)
- return do_sprinttv(buf, tv.tv_sec, tv.tv_usec, special);
- }
-
- return buf + sprintf(buf, "%#lx", addr);
-}
-
-void
-print_timespec(struct tcb *tcp, long addr)
-{
- char buf[TIMESPEC_TEXT_BUFSIZE];
- sprint_timespec(buf, tcp, addr);
- tprints(buf);
-}
-
-void
-sprint_timespec(char *buf, struct tcb *tcp, long addr)
-{
- if (addr == 0)
- strcpy(buf, "NULL");
- else if (!verbose(tcp))
- sprintf(buf, "%#lx", addr);
- else {
- int rc;
-
-#if SUPPORTED_PERSONALITIES > 1
- if (current_time_t_is_compat) {
- struct timeval32 tv;
-
- rc = umove(tcp, addr, &tv);
- if (rc >= 0)
- sprintf(buf, "{%u, %u}",
- tv.tv_sec, tv.tv_usec);
- } else
-#endif
- {
- struct timespec ts;
-
- rc = umove(tcp, addr, &ts);
- if (rc >= 0)
- sprintf(buf, "{%ju, %ju}",
- (uintmax_t) ts.tv_sec,
- (uintmax_t) ts.tv_nsec);
- }
- if (rc < 0)
- strcpy(buf, "{...}");
- }
-}
-
-SYS_FUNC(time)
-{
- if (exiting(tcp)) {
- if (current_time_t_is_int32)
- printnum_int(tcp, tcp->u_arg[0], "%d");
- else
- printnum_int64(tcp, tcp->u_arg[0], "%" PRId64);
- }
- return 0;
+ tprintf("{tz_minuteswest=%d, tz_dsttime=%d}",
+ tz.tz_minuteswest, tz.tz_dsttime);
}
SYS_FUNC(gettimeofday)
{
if (exiting(tcp)) {
- printtv(tcp, tcp->u_arg[0]);
+ print_timeval(tcp, tcp->u_arg[0]);
tprints(", ");
- printtv(tcp, tcp->u_arg[1]);
+ print_timezone(tcp, tcp->u_arg[1]);
}
return 0;
}
SYS_FUNC(osf_gettimeofday)
{
if (exiting(tcp)) {
- printtv_bitness(tcp, tcp->u_arg[0], BITNESS_32, 0);
+ print_timeval32(tcp, tcp->u_arg[0]);
tprints(", ");
- printtv_bitness(tcp, tcp->u_arg[1], BITNESS_32, 0);
+ print_timezone(tcp, tcp->u_arg[1]);
}
return 0;
}
SYS_FUNC(settimeofday)
{
- printtv(tcp, tcp->u_arg[0]);
+ print_timeval(tcp, tcp->u_arg[0]);
tprints(", ");
- printtv(tcp, tcp->u_arg[1]);
+ print_timezone(tcp, tcp->u_arg[1]);
return RVAL_DECODED;
}
#ifdef ALPHA
SYS_FUNC(osf_settimeofday)
{
- printtv_bitness(tcp, tcp->u_arg[0], BITNESS_32, 0);
+ print_timeval32(tcp, tcp->u_arg[0]);
tprints(", ");
- printtv_bitness(tcp, tcp->u_arg[1], BITNESS_32, 0);
+ print_timezone(tcp, tcp->u_arg[1]);
return RVAL_DECODED;
}
#endif
-SYS_FUNC(adjtime)
-{
- if (entering(tcp)) {
- printtv(tcp, tcp->u_arg[0]);
- tprints(", ");
- } else {
- printtv(tcp, tcp->u_arg[1]);
- }
- return 0;
-}
-
SYS_FUNC(nanosleep)
{
if (entering(tcp)) {
print_timespec(tcp, tcp->u_arg[0]);
tprints(", ");
} else {
- /* Second (returned) timespec is only significant
- * if syscall was interrupted. On success, we print
- * only its address, since kernel doesn't modify it,
+
+ /*
+ * Second (returned) timespec is only significant if syscall
+ * was interrupted. On success and in case of other errors we
+ * print only its address, since kernel doesn't modify it,
* and printing the value may show uninitialized data.
*/
- switch (tcp->u_error) {
- default:
- /* Not interrupted (slept entire interval) */
- printaddr(tcp->u_arg[1]);
- break;
- case ERESTARTSYS:
- case ERESTARTNOINTR:
- case ERESTARTNOHAND:
- case ERESTART_RESTARTBLOCK:
- /* Interrupted */
+ if (is_erestart(tcp)) {
+ temporarily_clear_syserror(tcp);
print_timespec(tcp, tcp->u_arg[1]);
+ restore_cleared_syserror(tcp);
+ } else {
+ printaddr(tcp->u_arg[1]);
}
}
return 0;
#include "xlat/itimer_which.h"
-static void
-printitv_bitness(struct tcb *tcp, long addr, enum bitness_t bitness)
-{
- if (bitness == BITNESS_32 || current_time_t_is_compat) {
- struct {
- struct timeval32 it_interval, it_value;
- } itv;
-
- if (!umove_or_printaddr(tcp, addr, &itv)) {
- tprints("{it_interval=");
- tprint_timeval32(tcp, &itv.it_interval);
- tprints(", it_value=");
- tprint_timeval32(tcp, &itv.it_value);
- tprints("}");
- }
- } else {
- struct itimerval itv;
-
- if (!umove_or_printaddr(tcp, addr, &itv)) {
- tprints("{it_interval=");
- tprint_timeval(tcp, &itv.it_interval);
- tprints(", it_value=");
- tprint_timeval(tcp, &itv.it_value);
- tprints("}");
- }
- }
-}
-
-#define printitv(tcp, addr) \
- printitv_bitness((tcp), (addr), BITNESS_CURRENT)
-
SYS_FUNC(getitimer)
{
if (entering(tcp)) {
printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
tprints(", ");
} else {
- printitv(tcp, tcp->u_arg[1]);
+ print_itimerval(tcp, tcp->u_arg[1]);
}
return 0;
}
printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
tprints(", ");
} else {
- printitv_bitness(tcp, tcp->u_arg[1], BITNESS_32);
+ print_itimerval32(tcp, tcp->u_arg[1]);
}
return 0;
}
if (entering(tcp)) {
printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
tprints(", ");
- printitv(tcp, tcp->u_arg[1]);
+ print_itimerval(tcp, tcp->u_arg[1]);
tprints(", ");
} else {
- printitv(tcp, tcp->u_arg[2]);
+ print_itimerval(tcp, tcp->u_arg[2]);
}
return 0;
}
if (entering(tcp)) {
printxval(itimer_which, tcp->u_arg[0], "ITIMER_???");
tprints(", ");
- printitv_bitness(tcp, tcp->u_arg[1], BITNESS_32);
+ print_itimerval32(tcp, tcp->u_arg[1]);
tprints(", ");
} else {
- printitv_bitness(tcp, tcp->u_arg[2], BITNESS_32);
+ print_itimerval32(tcp, tcp->u_arg[2]);
}
return 0;
}
#include "xlat/adjtimex_state.h"
-extern int tprint_timex(struct tcb *tcp, long addr);
-
static int
-do_adjtimex(struct tcb *tcp, long addr)
+do_adjtimex(struct tcb *const tcp, const kernel_ulong_t addr)
{
- if (tprint_timex(tcp, addr))
+ if (print_timex(tcp, addr))
return 0;
- tcp->auxstr = xlookup(adjtimex_state, tcp->u_rval);
+ tcp->auxstr = xlookup(adjtimex_state, (kernel_ulong_t) tcp->u_rval);
if (tcp->auxstr)
return RVAL_STR;
return 0;
if ((clockid & CLOCKFD_MASK) == CLOCKFD)
tprintf("FD_TO_CLOCKID(%d)", CLOCKID_TO_FD(clockid));
else {
- if(CPUCLOCK_PERTHREAD(clockid))
+ if (CPUCLOCK_PERTHREAD(clockid))
tprintf("MAKE_THREAD_CPUCLOCK(%d,", CPUCLOCK_PID(clockid));
else
tprintf("MAKE_PROCESS_CPUCLOCK(%d,", CPUCLOCK_PID(clockid));
printxval(cpuclocknames, clockid & CLOCKFD_MASK, "CPUCLOCK_???");
tprints(")");
}
- }
- else
+ } else
#endif
printxval(clocknames, clockid, "CLOCK_???");
}
{
printclockname(tcp->u_arg[0]);
tprints(", ");
- printtv(tcp, tcp->u_arg[1]);
+ print_timespec(tcp, tcp->u_arg[1]);
return RVAL_DECODED;
}
printclockname(tcp->u_arg[0]);
tprints(", ");
} else {
- printtv(tcp, tcp->u_arg[1]);
+ print_timespec(tcp, tcp->u_arg[1]);
}
return 0;
}
tprints(", ");
printflags(clockflags, tcp->u_arg[1], "TIMER_???");
tprints(", ");
- printtv(tcp, tcp->u_arg[2]);
+ print_timespec(tcp, tcp->u_arg[2]);
tprints(", ");
} else {
- printtv(tcp, tcp->u_arg[3]);
+ /*
+ * Second (returned) timespec is only significant
+ * if syscall was interrupted and flags is not TIMER_ABSTIME.
+ */
+ if (!tcp->u_arg[1] && is_erestart(tcp)) {
+ temporarily_clear_syserror(tcp);
+ print_timespec(tcp, tcp->u_arg[3]);
+ restore_cleared_syserror(tcp);
+ } else {
+ printaddr(tcp->u_arg[3]);
+ }
}
return 0;
}
tprintf("%d, ", (int) tcp->u_arg[0]);
printflags(clockflags, tcp->u_arg[1], "TIMER_???");
tprints(", ");
- printitv(tcp, tcp->u_arg[2]);
+ print_itimerspec(tcp, tcp->u_arg[2]);
tprints(", ");
} else {
- printitv(tcp, tcp->u_arg[3]);
+ print_itimerspec(tcp, tcp->u_arg[3]);
}
return 0;
}
if (entering(tcp)) {
tprintf("%d, ", (int) tcp->u_arg[0]);
} else {
- printitv(tcp, tcp->u_arg[1]);
+ print_itimerspec(tcp, tcp->u_arg[1]);
}
return 0;
}
#include "xlat/timerfdflags.h"
-SYS_FUNC(timerfd)
-{
- /* It does not matter that the kernel uses itimerspec. */
- tprintf("%ld, ", tcp->u_arg[0]);
- printclockname(tcp->u_arg[0]);
- tprints(", ");
- printflags(timerfdflags, tcp->u_arg[2], "TFD_???");
- tprints(", ");
- printitv(tcp, tcp->u_arg[3]);
-
- return RVAL_DECODED | RVAL_FD;
-}
-
SYS_FUNC(timerfd_create)
{
printclockname(tcp->u_arg[0]);
SYS_FUNC(timerfd_settime)
{
- printfd(tcp, tcp->u_arg[0]);
- tprints(", ");
- printflags(timerfdflags, tcp->u_arg[1], "TFD_???");
- tprints(", ");
- printitv(tcp, tcp->u_arg[2]);
- tprints(", ");
- printitv(tcp, tcp->u_arg[3]);
-
- return RVAL_DECODED;
+ if (entering(tcp)) {
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ printflags(timerfdflags, tcp->u_arg[1], "TFD_???");
+ tprints(", ");
+ print_itimerspec(tcp, tcp->u_arg[2]);
+ tprints(", ");
+ } else {
+ print_itimerspec(tcp, tcp->u_arg[3]);
+ }
+ return 0;
}
SYS_FUNC(timerfd_gettime)
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
} else {
- printitv(tcp, tcp->u_arg[1]);
+ print_itimerspec(tcp, tcp->u_arg[1]);
}
return 0;
}
projects / strace / blobdiff