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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
.inline _curthread, 0
.register %g7, #scratch
mov %g7, %o0
.end
.inline __curthread, 0
.register %g7, #scratch
ld [%g7 + 80], %o0 ! ul_self
.end
.inline stkptr, 0
mov %sp, %o0
.end
.inline gethrtime, 0
ta 0x24
.end
.inline set_lock_byte, 0
ldstub [%o0], %o0
.end
/*
* When compiling with -xarch=v8, the compiler refuses to
* accept the 'cas' instruction, so we encode it in hex below.
* We can't compile the 32-bit libc with -xarch=v8plus because
* then %g5 would become a scratch register and we would break
* 32-bit applications that use %g5 as an invariant register.
*/
.inline atomic_cas_32, 0
.word 0xd5e21009 ! cas [%o0], %o1, %o2
mov %o2, %o0
.end
.inline atomic_swap_32, 0
ld [%o0], %o2
1:
mov %o1, %o3
.word 0xd7e2100a ! cas [%o0], %o2, %o3
cmp %o2, %o3
bne,a 1b
mov %o3, %o2
mov %o3, %o0
.end
.inline atomic_inc_32, 0
ld [%o0], %o2
1:
add %o2, 1, %o3
.word 0xd7e2100a ! cas [%o0], %o2, %o3
cmp %o2, %o3
bne,a 1b
mov %o3, %o2
.end
.inline atomic_dec_32, 0
ld [%o0], %o2
1:
sub %o2, 1, %o3
.word 0xd7e2100a ! cas [%o0], %o2, %o3
cmp %o2, %o3
bne,a 1b
mov %o3, %o2
.end
.inline atomic_and_32, 0
ld [%o0], %o2
1:
and %o2, %o1, %o3
.word 0xd7e2100a ! cas [%o0], %o2, %o3
cmp %o2, %o3
bne,a 1b
mov %o3, %o2
.end
.inline atomic_or_32, 0
ld [%o0], %o2
1:
or %o2, %o1, %o3
.word 0xd7e2100a ! cas [%o0], %o2, %o3
cmp %o2, %o3
bne,a 1b
mov %o3, %o2
.end
.inline caller, 0
mov %i7, %o0
.end
.inline getfp, 0
mov %fp, %o0
.end
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