/* Save current context.

   Copyright (C) 2002-2018 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 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>

#include <rtld-global-offsets.h>

#include <shlib-compat.h>

#define __ASSEMBLY__

#include <asm/ptrace.h>

#include "ucontext_i.h"

#define __CONTEXT_FUNC_NAME __getcontext

#define __CONTEXT_ENABLE_FPRS 1

#define __CONTEXT_ENABLE_VRS 1

/* Size of ucontext in GLIBC_2.3.4 and later.  */

#define _UC_SIZE_2_3_4	1184

	.section ".text";

ENTRY (__getcontext)

	li	r4,0

	li	r5,_UC_SIZE_2_3_4;

	DO_CALL (SYS_ify (swapcontext));

	bso-	cr0,1f

/* the kernel does not set the return code for the success case */

	li	r3,0

	blr

1:

	b	__syscall_error@local

END(__getcontext)

versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)

#if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)

	compat_text_section

# undef __CONTEXT_FUNC_NAME

# define __CONTEXT_FUNC_NAME __novec_getcontext

# undef __CONTEXT_ENABLE_VRS

# include "getcontext-common.S"

	.previous

compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)

#endif

#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)

# define _ERRNO_H	1

# include <bits/errno.h>

	compat_text_section

ENTRY (__getcontext_stub)

	li	r3,ENOSYS

	b	__syscall_error@local

END (__getcontext_stub)

	.previous

compat_symbol (libc, __getcontext_stub, getcontext, GLIBC_2_1)

#endif