/* Copyright (C) 1992-2018 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  */