glibc/sysdeps/unix/sysv/linux/ia64/sysdep.S

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Update. 2000-05-05 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h: New file. * sysdeps/unix/sysv/linux/ia64/syscall.S: New file. * sysdeps/unix/sysv/linux/ia64/bits/types.h: New file. * sysdeps/unix/sysv/linux/ia64/bits/endian.h: New file. * sysdeps/ia64/Implies: New file. * sysdeps/ia64/Versions: New file. Declare _dl_symbol_address. * sysdeps/ia64/Makefile: New file. * sysdeps/ia64/gmp-mparam.h: New file, * sysdeps/ia64/elf/start.S: New file. * sysdeps/ia64/bits/fenv.h: New file. 2000-05-05 David Mosberger-Tang <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.S: New file. 2000-04-26 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/unix/sysv/linux/ia64/bits/elfclass.h: New file. The ia64 has 64 bit .hash entries just as the Alpha. 2000-04-25 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/ia64/memprof.h: New file. Provide GETSP() macro. 2000-04-17 Jes Sorensen <Jes.Sorensen@cern.ch> * sysdeps/ia64/fpu/fclrexcpt.c: New file. * sysdeps/ia64/fpu/fedisblxcpt.c: New file. * sysdeps/ia64/fpu/feenablxcpt.c: New file. * sysdeps/ia64/fpu/fegetenv.c: New file. * sysdeps/ia64/fpu/fegetexcept.c: New file. * sysdeps/ia64/fpu/fegetround.c: New file. * sysdeps/ia64/fpu/feholdexcpt.c: New file. * sysdeps/ia64/fpu/fesetenv.c: New file. * sysdeps/ia64/fpu/fesetround.c: New file. * sysdeps/ia64/fpu/feupdateenv.c: New file. * sysdeps/ia64/fpu/fgetexcptflg.c: New file. * sysdeps/ia64/fpu/fraiseexcpt.c: New file. * sysdeps/ia64/fpu/fsetexcptflg.c: New file. * sysdeps/ia64/fpu/ftestexcept.c: New file. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_DL_HWCAP_COUNT): New. * sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h (_DL_HWCAP_COUNT): New. * sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h (_DL_HWCAP_COUNT): New.
2000-05-05 16:49:44 +00:00
/* Copyright (C) 1999, 2000 Hewlett-Packard Co.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
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>
#include <features.h>
.psr abi64
.psr lsb
.lsb
.global errno
.common errno,4,4
.type errno, @object
.size errno, 4
.global __errno
__errno = errno
.global _errno
_errno = errno
.text
.align 8
.global __syscall_error
.proc __syscall_error
__syscall_error:
#ifdef _LIBC_REENTRANT
alloc r35=ar.pfs, 0, 4, 0, 0
mov r32=b0
mov r33=r8
mov r34=r1
;;
br.call.sptk.many b0 = __errno_location#
.Lret0: /* force new bundle */
st4 [r8]=r33
mov r1=r34
mov b0=r32
mov r8=-1
mov ar.pfs=r35
#else /* _LIBC_REENTRANT */
/*
* Note that the gp has to be set properly for this to work.
* As long as all syscalls are in the same load unit
* (executable or shared library) as this routine, we should
* be fine. Otherwise, we would have to first load the global
* pointer register from __gp.
*/
addl r2=@ltoff(errno),gp
;;
ld8 r2=[r2]
mov r3=r8
mov r8=-1
;;
st4 [r2]=r3
#endif /* _LIBC_REENTRANT */
ret // ret is #define'd in syscall.h!
.endp __syscall_error
.global __ia64_syscall
.proc __ia64_syscall
__ia64_syscall:
break __BREAK_SYSCALL
cmp.eq p6,p0=-1,r10
(p6) br.cond.spnt.few __syscall_error
ret
.endp __ia64_syscall