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authorUlrich Drepper <drepper@redhat.com>1998-02-26 17:15:38 +0000
committerUlrich Drepper <drepper@redhat.com>1998-02-26 17:15:38 +0000
commitd958c1216762f2e6eaeb77d18a301da61bf2b378 (patch)
tree25f14353dfce1068cc9f80d97b2fbb5481a27d74 /sysdeps
parent0f04509d000af79cc32614e385e1196915e03269 (diff)
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Code to handle compatibility of syscall for adjtime interface.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/adjtime.c202
1 files changed, 202 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/adjtime.c b/sysdeps/unix/sysv/linux/alpha/adjtime.c
new file mode 100644
index 0000000000..f7df5fcc80
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/adjtime.c
@@ -0,0 +1,202 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+struct timeval32
+{
+ int tv_sec, tv_usec;
+};
+
+struct timex32 {
+ unsigned int modes; /* mode selector */
+ long offset; /* time offset (usec) */
+ long freq; /* frequency offset (scaled ppm) */
+ long maxerror; /* maximum error (usec) */
+ long esterror; /* estimated error (usec) */
+ int status; /* clock command/status */
+ long constant; /* pll time constant */
+ long precision; /* clock precision (usec) (read only) */
+ long tolerance; /* clock frequency tolerance (ppm)
+ * (read only)
+ */
+ struct timeval32 time; /* (read only) */
+ long tick; /* (modified) usecs between clock ticks */
+
+ long ppsfreq; /* pps frequency (scaled ppm) (ro) */
+ long jitter; /* pps jitter (us) (ro) */
+ int shift; /* interval duration (s) (shift) (ro) */
+ long stabil; /* pps stability (scaled ppm) (ro) */
+ long jitcnt; /* jitter limit exceeded (ro) */
+ long calcnt; /* calibration intervals (ro) */
+ long errcnt; /* calibration errors (ro) */
+ long stbcnt; /* stability limit exceeded (ro) */
+
+ int :32; int :32; int :32; int :32;
+ int :32; int :32; int :32; int :32;
+ int :32; int :32; int :32; int :32;
+};
+
+#define TIMEVAL timeval32
+#define TIMEX timex32
+#define ADJTIME __adjtime_tv32
+#define ADJTIMEX(x) __adjtimex_tv32 (x)
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+#define LINKAGE
+#else
+#define LINKAGE static
+#endif
+
+LINKAGE int ADJTIME (const struct TIMEVAL *itv, struct TIMEVAL *otv);
+extern int ADJTIMEX (struct TIMEX *);
+
+#include <sysdeps/unix/sysv/linux/adjtime.c>
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+symbol_version (__adjtime_tv32, adjtime, GLIBC_2.0);
+#endif
+
+#undef TIMEVAL
+#define TIMEVAL timeval
+#undef TIMEX
+#define TIMEX timex
+#undef ADJTIME
+#define ADJTIME __adjtime_tv64
+#undef ADJTIMEX
+#define ADJTIMEX(x) __syscall_adjtimex_tv64 (x)
+#undef LINKAGE
+#define LINKAGE static
+
+LINKAGE int ADJTIME (const struct TIMEVAL *itv, struct TIMEVAL *otv);
+extern int ADJTIMEX (struct TIMEX *);
+
+#include <sysdeps/unix/sysv/linux/adjtime.c>
+static int missing_adjtimex = 0;
+
+int
+__adjtime (itv, otv)
+ const struct timeval *itv;
+ struct timeval *otv;
+{
+ int ret;
+
+ if (!missing_adjtimex)
+ {
+ ret = __adjtime_tv64 (itv, otv);
+ if (ret && errno == ENOSYS)
+ missing_adjtimex = 1;
+ }
+
+ if (missing_adjtimex)
+ {
+ struct timeval32 itv32, otv32;
+
+ itv32.tv_sec = itv->tv_sec;
+ itv32.tv_usec = itv->tv_usec;
+ ret = __adjtime_tv32 (&itv32, &otv32);
+ if (ret == 0)
+ {
+ otv->tv_sec = otv32.tv_sec;
+ otv->tv_usec = otv32.tv_usec;
+ }
+ }
+
+ return ret;
+}
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+default_symbol_version (__adjtime, adjtime, GLIBC_2.1);
+#else
+weak_alias (__adjtime, adjtime);
+#endif
+
+extern int __syscall_adjtimex_tv64 (struct timex *tx);
+
+int
+__adjtimex_tv64 (tx)
+ struct timex *tx;
+{
+ int ret;
+
+ if (!missing_adjtimex)
+ {
+ ret = __syscall_adjtimex_tv64 (tx);
+ if (ret && errno == ENOSYS)
+ missing_adjtimex = 1;
+ }
+
+ if (missing_adjtimex)
+ {
+ struct timex32 tx32;
+
+ tx32.modes = tx->modes;
+ tx32.offset = tx->offset;
+ tx32.freq = tx->freq;
+ tx32.maxerror = tx->maxerror;
+ tx32.esterror = tx->esterror;
+ tx32.status = tx->status;
+ tx32.constant = tx->constant;
+ tx32.precision = tx->precision;
+ tx32.tolerance = tx->tolerance;
+ tx32.time.tv_sec = tx->time.tv_sec;
+ tx32.time.tv_sec = tx->time.tv_usec;
+ tx32.tick = tx->tick;
+ tx32.ppsfreq = tx->ppsfreq;
+ tx32.jitter = tx->jitter;
+ tx32.shift = tx->shift;
+ tx32.stabil = tx->stabil;
+ tx32.jitcnt = tx->jitcnt;
+ tx32.calcnt = tx->calcnt;
+ tx32.errcnt = tx->errcnt;
+ tx32.stbcnt = tx->stbcnt;
+
+ ret = __adjtimex_tv32 (&tx32);
+ if (ret == 0)
+ {
+ tx->modes = tx32.modes;
+ tx->offset = tx32.offset;
+ tx->freq = tx32.freq;
+ tx->maxerror = tx32.maxerror;
+ tx->esterror = tx32.esterror;
+ tx->status = tx32.status;
+ tx->constant = tx32.constant;
+ tx->precision = tx32.precision;
+ tx->tolerance = tx32.tolerance;
+ tx->time.tv_sec = tx32.time.tv_sec;
+ tx->time.tv_usec = tx32.time.tv_sec;
+ tx->tick = tx32.tick;
+ tx->ppsfreq = tx32.ppsfreq;
+ tx->jitter = tx32.jitter;
+ tx->shift = tx32.shift;
+ tx->stabil = tx32.stabil;
+ tx->jitcnt = tx32.jitcnt;
+ tx->calcnt = tx32.calcnt;
+ tx->errcnt = tx32.errcnt;
+ tx->stbcnt = tx32.stbcnt;
+ }
+ }
+
+ return ret;
+}
+
+#if defined HAVE_ELF && defined PIC && defined DO_VERSIONING
+strong_alias (__adjtimex_tv64, __adjtimex_tv64p);
+default_symbol_version (__adjtimex_tv64, __adjtimex, GLIBC_2.1);
+default_symbol_version (__adjtimex_tv64p, adjtimex, GLIBC_2.1);
+#else
+weak_alias (__adjtimex_tv64, __adjtimex);
+weak_alias (__adjtimex_tv64, adjtimex);
+#endif