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authorRichard Henderson <rth@redhat.com>1998-02-04 10:17:52 +0000
committerRichard Henderson <rth@redhat.com>1998-02-04 10:17:52 +0000
commit823bc6527dae4ef44cb43794628fb07fc0d9544d (patch)
tree1c66f06467e5fb86fa2db4bb75759bc83c6b17f4 /sysdeps/unix/sysv/linux/alpha/gettimeofday.S
parent566efee21908cc59bb0645c3208446f3dedebce8 (diff)
* sysdeps/unix/sysv/linux/alpha/clone.S: Elide terminal ldgp for PROF. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Fix typos. * sysdeps/unix/sysv/linux/alpha/bits/time.h (struct timeval): Follow POSIX and make tv_sec a time_t. * sysdeps/unix/sysv/linux/alpha/getitimer.S: New file to handle new tv64 syscall as well as fall back to tv32. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/select.S: Likewise. * sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise. * sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Add tv32 entries.
1998-02-04 18:04 Richard Henderson <rth@cygnus.com> * sysdeps/unix/sysv/linux/alpha/clone.S: Elide terminal ldgp for PROF. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Fix typos. * sysdeps/unix/sysv/linux/alpha/bits/time.h (struct timeval): Follow POSIX and make tv_sec a time_t. * sysdeps/unix/sysv/linux/alpha/getitimer.S: New file to handle new tv64 syscall as well as fall back to tv32. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/select.S: Likewise. * sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise. * sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Add tv32 entries.
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/gettimeofday.S')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/gettimeofday.S102
1 files changed, 102 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/gettimeofday.S b/sysdeps/unix/sysv/linux/alpha/gettimeofday.S
new file mode 100644
index 0000000000..bceeefc0a7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/gettimeofday.S
@@ -0,0 +1,102 @@
+/* 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. */
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/* The problem here is that initially we made struct timeval compatible with
+ OSF/1, using int32. But we defined time_t with uint64, and later found
+ that POSIX requires tv_sec to be time_t.
+
+ So now we have to do compatibility stuff. */
+
+/* The variable is shared between all wrappers around signal handling
+ functions which have RT equivalents. */
+.comm __libc_missing_axp_tv64, 4
+
+.text
+
+LEAF(__gettimeofday_tv64, 16)
+ ldgp gp, 0(pv)
+ subq sp, 16, sp
+#ifdef PROF
+ .set noat
+ lda AT, _mcount
+ jsr AT, (AT), _mcount
+ .set at
+#endif
+ .prologue 1
+
+ ldl t0, __libc_missing_axp_tv64
+
+ /* Save arguments in case we do need to fall back. */
+ stq a0, 0(sp)
+ stq a1, 8(sp)
+
+ bne t0, $do32
+
+ ldi v0, SYS_ify(gettimeofday)
+ callsys
+ bne a3, $err64
+
+ /* Everything ok. */
+ addq sp, 16, sp
+ ret
+
+ /* If we didn't get ENOSYS, it is a real error. */
+ .align 3
+$err64: cmpeq v0, ENOSYS, t0
+ bne t0, $error
+ stl t0, __libc_missing_axp_tv64
+
+ /* Recover the saved arguments. */
+ ldq a1, 8(sp)
+ ldq a0, 0(sp)
+
+ .align 3
+$do32: ldi v0, SYS_ify(osf_gettimeofday)
+ callsys
+ bne a3, $error
+
+ /* Copy back to proper format. */
+ ldq a0, 0(sp)
+ beq a0, 2f
+ ldl t0, 0(a0)
+ ldl t1, 4(a0)
+ stq t0, 0(a0)
+ stq t1, 0(a0)
+
+2: addq sp, 16, sp
+ ret
+
+ .align 3
+$error:
+ lda pv, __syscall_error
+ addq sp, 16, sp
+ jmp zero, (pv), __syscall_error
+
+END(__gettimeofday_tv64)
+
+default_symbol_version (__gettimeofday_tv64, __gettimeofday, GLIBC_2.1)
+
+/* It seems to me to be a misfeature of the assembler that we can only
+ have one version-alias per symbol. So create an alias ourselves.
+ The 'p' is for 'public'. *Shrug* */
+strong_alias (__gettimeofday_tv64, __gettimeofday_tv64p)
+default_symbol_version (__gettimeofday_tv64p, gettimeofday, GLIBC_2.1)