WebSVN – HelenOS – Diff – /SPARTAN/trunk/arch/sparc64/include/context.h


/*
 * Copyright (C) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef __sparc64_CONTEXT_H__
#define __sparc64_CONTEXT_H__
 
#ifndef __sparc64_TYPES_H__
# include <arch/types.h>
#endif
 
#ifndef __ALIGN_H__
# include <align.h>
#endif
 
/** According to SPARC Compliance Definition, every stack frame is 16-byte aligned. */
#define STACK_ALIGNMENT         16
 
 
#define STACK_ITEM_SIZE         sizeof(__u64)
 
/**
 * 16-extended-word save area for %i[0-7] and %l[0-7] registers.
 */
#define SAVE_AREA   (16*STACK_ITEM_SIZE)
#define SP_DELTA    SAVE_AREA
 
/**
 * By convention, the actual top of the stack is %sp + BIAS.
 */
#define BIAS        2047
 
#ifdef context_set
#undef context_set
#endif
 
#define context_set(c, _pc, stack, size)                                                                \
        (c)->pc = ((__address) _pc) - 8;                                                                \
        (c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (BIAS + SP_DELTA)
 
/*
 * Only save registers that must be preserved across
 * function calls.
 */
struct context {
    __u64 l0;
    __u64 l1;
    __u64 l2;
    __u64 l3;
    __u64 l4;
    __u64 l5;
    __u64 l6;
    __u64 l7;
    __u64 i1;
    __u64 i2;
    __u64 i3;
    __u64 i4;
    __u64 i5;
    __address sp;       /* %i6 */
    __address pc;       /* %i7 */
    ipl_t ipl;
};
 
#endif
 

Rev 426	Rev 427
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#ifndef __sparc64_CONTEXT_H__	29	#ifndef __sparc64_CONTEXT_H__
30	#define __sparc64_CONTEXT_H__	30	#define __sparc64_CONTEXT_H__
31		31
32	#ifndef __sparc64_TYPES_H__	32	#ifndef __sparc64_TYPES_H__
33	# include <arch/types.h>	33	# include <arch/types.h>
34	#endif	34	#endif
35		35
36	#ifndef __ALIGN_H__	36	#ifndef __ALIGN_H__
37	# include <align.h>	37	# include <align.h>
38	#endif	38	#endif
39		39
-		40	/** According to SPARC Compliance Definition, every stack frame is 16-byte aligned. */
40	#define STACK_ALIGNMENT 8	41	#define STACK_ALIGNMENT 16
41	#define STACK_ITEM_SIZE 8	-
42		42
-		43	#define STACK_ITEM_SIZE sizeof(__u64)
-		44
43	/*	45	/**
-		46	* 16-extended-word save area for %i[0-7] and %l[0-7] registers.
-		47	*/
-		48	#define SAVE_AREA (16*STACK_ITEM_SIZE)
-		49	#define SP_DELTA SAVE_AREA
-		50
-		51	/**
44	* One item is put onto the stack to support get_stack_base().	52	* By convention, the actual top of the stack is %sp + BIAS.
45	*/	53	*/
46	#define SP_DELTA (0+STACK_ITEM_SIZE)	54	#define BIAS 2047
47		55
48	#ifdef context_set	56	#ifdef context_set
49	#undef context_set	57	#undef context_set
50	#endif	58	#endif
51		59
52	#define context_set(c, _pc, stack, size) \	60	#define context_set(c, _pc, stack, size) \
53	(c)->pc = ((__address) _pc) - 8; \	61	(c)->pc = ((__address) _pc) - 8; \
54	(c)->sp = ((__address) stack) + (ALIGN((size), STACK_ALIGNMENT) + 1) - SP_DELTA;	62	(c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (BIAS + SP_DELTA)
55		63
56	/*	64	/*
57	* Only save registers that must be preserved across	65	* Only save registers that must be preserved across
58	* function calls.	66	* function calls.
59	*/	67	*/
60	struct context {	68	struct context {
61	__u64 l0;	69	__u64 l0;
62	__u64 l1;	70	__u64 l1;
63	__u64 l2;	71	__u64 l2;
64	__u64 l3;	72	__u64 l3;
65	__u64 l4;	73	__u64 l4;
66	__u64 l5;	74	__u64 l5;
67	__u64 l6;	75	__u64 l6;
68	__u64 l7;	76	__u64 l7;
69	__u64 i1;	77	__u64 i1;
70	__u64 i2;	78	__u64 i2;
71	__u64 i3;	79	__u64 i3;
72	__u64 i4;	80	__u64 i4;
73	__u64 i5;	81	__u64 i5;
74	__address sp; /* %i6 */	82	__address sp; /* %i6 */
75	__address pc; /* %i7 */	83	__address pc; /* %i7 */
76	ipl_t ipl;	84	ipl_t ipl;
77	};	85	};
78		86
79	#endif	87	#endif
80		88

Subversion Repositories HelenOS

(root)/SPARTAN/trunk/arch/sparc64/include/context.h – Rev 426 → 427