2001-03-25 05:15:51 +00:00
|
|
|
/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
|
2000-05-05 16:49:44 +00:00
|
|
|
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>
|
|
|
|
|
|
|
|
|
|
.global errno
|
|
|
|
|
.common errno,4,4
|
|
|
|
|
.type errno, @object
|
|
|
|
|
.size errno, 4
|
|
|
|
|
|
|
|
|
|
.global __errno
|
|
|
|
|
__errno = errno
|
|
|
|
|
|
|
|
|
|
.global _errno
|
|
|
|
|
_errno = errno
|
|
|
|
|
|
2001-03-25 05:15:51 +00:00
|
|
|
ENTRY(__syscall_error)
|
2000-05-05 16:49:44 +00:00
|
|
|
#ifdef _LIBC_REENTRANT
|
2001-03-25 05:15:51 +00:00
|
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(0)
|
2000-05-05 16:49:44 +00:00
|
|
|
alloc r35=ar.pfs, 0, 4, 0, 0
|
2001-03-25 05:15:51 +00:00
|
|
|
mov r32=rp
|
2000-05-05 16:49:44 +00:00
|
|
|
mov r33=r8
|
|
|
|
|
mov r34=r1
|
|
|
|
|
;;
|
|
|
|
|
br.call.sptk.many b0 = __errno_location#
|
|
|
|
|
.Lret0: /* force new bundle */
|
|
|
|
|
st4 [r8]=r33
|
|
|
|
|
mov r1=r34
|
2001-03-25 05:15:51 +00:00
|
|
|
mov rp=r32
|
2000-05-05 16:49:44 +00:00
|
|
|
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!
|
2001-03-25 05:15:51 +00:00
|
|
|
END(__syscall_error)
|
2000-05-05 16:49:44 +00:00
|
|
|
|
2000-09-29 16:45:44 +00:00
|
|
|
ENTRY(__ia64_syscall)
|
|
|
|
|
mov r15=r37 /* syscall number */
|
|
|
|
|
break __BREAK_SYSCALL
|
|
|
|
|
cmp.eq p6,p0=-1,r10 /* r10 = -1 on error */
|
|
|
|
|
(p6) br.cond.spnt.few __syscall_error
|
|
|
|
|
ret
|
|
|
|
|
PSEUDO_END(__ia64_syscall)
|
