xref: /freebsd/sys/arm/include/asmacros.h (revision 642870485c089b57000fe538d3485e272b038d59)
1 /*-
2  * Copyright (c) 2012 Olivier Houchard <cognet@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef	_MACHINE_ASMACROS_H_
30 #define	_MACHINE_ASMACROS_H_
31 
32 #include <machine/asm.h>
33 
34 #ifdef _KERNEL
35 
36 #ifdef LOCORE
37 
38 #if __ARM_ARCH >= 6
39 #define GET_CURTHREAD_PTR(tmp) \
40     	mrc	p15, 0, tmp, c13, c0, 4
41 #else
42 #define GET_CURTHREAD_PTR(tmp)	\
43 	ldr	tmp, =_C_LABEL(__pcpu);\
44 	ldr	tmp, [tmp, #PC_CURTHREAD]
45 #endif
46 
47 #define	ELFNOTE(section, type, vendor, desctype, descdata...)	  \
48 	.pushsection section					; \
49 	    .balign 4						; \
50 	    .long 2f - 1f		/* namesz */		; \
51 	    .long 4f - 3f		/* descsz */		; \
52 	    .long type			/* type */		; \
53 	    1: .asciz vendor		/* vendor name */	; \
54 	    2: .balign 4					; \
55 	    3:  desctype descdata	/* node */		; \
56 	    4: .balign 4					; \
57 	.popsection
58 
59 #endif /* LOCORE */
60 
61 #endif /* _KERNEL */
62 
63 #endif /* !_MACHINE_ASMACROS_H_ */
64