mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 05:20:06 +00:00
101 lines
2.4 KiB
ArmAsm
101 lines
2.4 KiB
ArmAsm
/* Copyright (C) 1992-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Brendan Kehoe (brendan@zen.org).
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ERRNO_H
|
|
#include <bits/errno.h>
|
|
#include <sys/asm.h>
|
|
|
|
.set nomips16
|
|
|
|
#ifdef _LIBC_REENTRANT
|
|
|
|
LOCALSZ= 3
|
|
FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
|
|
RAOFF= FRAMESZ-(1*SZREG)
|
|
GPOFF= FRAMESZ-(2*SZREG)
|
|
V0OFF= FRAMESZ-(3*SZREG)
|
|
|
|
ENTRY(__syscall_error)
|
|
#ifdef __PIC__
|
|
.set noat
|
|
SETUP_GPX (AT)
|
|
.set at
|
|
#endif
|
|
PTR_SUBU sp, FRAMESZ
|
|
.set noat
|
|
SETUP_GPX64(GPOFF,AT)
|
|
.set at
|
|
#ifdef __PIC__
|
|
SAVE_GP(GPOFF)
|
|
#endif
|
|
REG_S v0, V0OFF(sp)
|
|
REG_S ra, RAOFF(sp)
|
|
|
|
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
|
|
/* We translate the system's EWOULDBLOCK error into EAGAIN.
|
|
The GNU C library always defines EWOULDBLOCK==EAGAIN.
|
|
EWOULDBLOCK_sys is the original number. */
|
|
bne v0, EWOULDBLOCK_sys, L(skip)
|
|
nop
|
|
li v0, EAGAIN
|
|
L(skip):
|
|
#endif
|
|
/* Find our per-thread errno address */
|
|
jal __errno_location
|
|
|
|
/* Store the error value. */
|
|
REG_L t0, V0OFF(sp)
|
|
sw t0, 0(v0)
|
|
|
|
/* And just kick back a -1. */
|
|
REG_L ra, RAOFF(sp)
|
|
RESTORE_GP64
|
|
PTR_ADDU sp, FRAMESZ
|
|
li v0, -1
|
|
j ra
|
|
END(__syscall_error)
|
|
|
|
#else /* _LIBC_REENTRANT */
|
|
|
|
|
|
ENTRY(__syscall_error)
|
|
#ifdef __PIC__
|
|
SETUP_GPX (AT)
|
|
#endif
|
|
SETUP_GPX64 (t9, AT)
|
|
|
|
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
|
|
/* We translate the system's EWOULDBLOCK error into EAGAIN.
|
|
The GNU C library always defines EWOULDBLOCK==EAGAIN.
|
|
EWOULDBLOCK_sys is the original number. */
|
|
bne v0, EWOULDBLOCK_sys, L(skip)
|
|
li v0, EAGAIN
|
|
L(skip):
|
|
#endif
|
|
/* Store it in errno... */
|
|
sw v0, errno
|
|
|
|
/* And just kick back a -1. */
|
|
li v0, -1
|
|
|
|
RESTORE_GP64
|
|
j ra
|
|
END(__syscall_error)
|
|
#endif /* _LIBC_REENTRANT */
|