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- /* Copyright (C) 2001, 2003 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 <features.h>
- #include "sysdep.h"
- /* Make space for the errno variable. */
- .globl C_SYMBOL_NAME(errno)
- .type C_SYMBOL_NAME(errno),@object
- .lcomm C_SYMBOL_NAME(errno),4
- .weak errno
- errno = _errno
- /* The syscall stubs jump here when they detect an error, bot for PIC and
- non-PIC. */
- .syntax no_register_prefix
- ENTRY (__syscall_error)
- neg.d r10,r10
- #ifdef __UCLIBC_HAS_THREADS__
- subq 4,sp
- move.d r10,[sp]
- subq 4,sp
- move srp,[sp]
- /* Note that __syscall_error is only visible within this library,
- and no-one passes it on as a pointer, so can assume that R0 (GOT
- pointer) is correctly set up. */
- PLTCALL (HIDDEN_JUMPTARGET(__errno_location))
- move [sp+],srp
- move.d [sp+],r11
- move.d r11,[r10]
- #else /* not __UCLIBC_HAS_THREADS__ */
- #ifdef __arch_v32
- # ifdef __PIC__
- addo.d C_SYMBOL_NAME(errno:GOT),r0,acr
- move.d [acr],r9
- move.d r10,[r9]
- # else /* not __PIC__ */
- lapc C_SYMBOL_NAME(errno),acr
- move.d r10,[r9]
- # endif /* not __PIC__ */
- #else /* not __arch_v32 */
- # ifdef __PIC__
- move.d [r0+C_SYMBOL_NAME(errno:GOT)],r9
- move.d r10,[r9]
- # else
- move.d r10,[C_SYMBOL_NAME(errno)]
- # endif
- #endif /* not __arch_v32 */
- #endif /* __UCLIBC_HAS_THREADS__ */
- #ifdef __PIC__
- /* PIC callers are supposed to have R0 on stack, ready for us to restore.
- Callers are only allowed from within this DSO, so the GOT in r0 is the
- one we want to use.
- (Don't use "ret" - it's a macro). */
- moveq -1,r10
- Ret
- move.d [sp+],r0
- #else
- Ret
- moveq -1,r10
- #endif
- END (__syscall_error)
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