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author | Richard Henderson <rth@redhat.com> | 1998-02-04 10:17:52 +0000 |
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committer | Richard Henderson <rth@redhat.com> | 1998-02-04 10:17:52 +0000 |
commit | 823bc6527dae4ef44cb43794628fb07fc0d9544d (patch) | |
tree | 1c66f06467e5fb86fa2db4bb75759bc83c6b17f4 /sysdeps/unix/sysv/linux/alpha/select.S | |
parent | 566efee21908cc59bb0645c3208446f3dedebce8 (diff) | |
download | glibc-823bc6527dae4ef44cb43794628fb07fc0d9544d.zip glibc-823bc6527dae4ef44cb43794628fb07fc0d9544d.tar.gz glibc-823bc6527dae4ef44cb43794628fb07fc0d9544d.tar.bz2 |
* 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/select.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/alpha/select.S | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/select.S b/sysdeps/unix/sysv/linux/alpha/select.S new file mode 100644 index 0000000..73076b9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/alpha/select.S @@ -0,0 +1,116 @@ +/* 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(__select_tv64, 64) + ldgp gp, 0(pv) + subq sp, 64, sp +#ifdef PROF + .set noat + lda AT, _mcount + jsr AT, (AT), _mcount + .set at +#endif + .prologue 1 + + ldl t0, __libc_missing_axp_tv64 + bne t0, $do32 + + /* Save arguments in case we do need to fall back. */ + stq a0, 8(sp) + stq a1, 16(sp) + stq a2, 24(sp) + stq a3, 32(sp) + stq a4, 48(sp) + + ldi v0, SYS_ify(select) + callsys + bne a3, $err64 + + /* Everything ok. */ + addq sp, 64, sp + ret + + /* If we didn't get ENOSYS, it is a real error. */ + .align 3 +$err64: cmpeq v0, ENOSYS, t0 + bne t0, $error + stl t0, __libc_missing_axp_tv64 + + /* Recover the saved arguments. */ + ldq a4, 48(sp) + ldq a3, 32(sp) + ldq a2, 24(sp) + ldq a1, 16(sp) + ldq a0, 8(sp) + + .align 3 +$do32: + /* If the timeout argument is present bounce to the smaller fmt. */ + beq a4, 1f + ldq t0, 0(a4) + ldq t1, 8(a4) + stl t0, 0(sp) + stl t1, 4(sp) + mov sp, a4 + +1: ldi v0, SYS_ify(osf_select) + callsys + bne a3, $error + + /* ... and bounce the remaining timeout back. */ + ldq a4, 48(sp) + beq a4, 2f + ldl t0, 0(sp) + ldl t1, 4(sp) + stq t0, 0(a4) + stq t1, 8(a4) + +2: addq sp, 64, sp + ret + + .align 3 +$error: + lda pv, __syscall_error + addq sp, 64, sp + jmp zero, (pv), __syscall_error + +END(__select_tv64) + +default_symbol_version (__select_tv64, __select, 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 (__select_tv64, __select_tv64p) +default_symbol_version (__select_tv64p, select, GLIBC_2.1) |