1 /*-
2 * Copyright (c) 2000, 2001 Ben Harris
3 * Copyright (c) 1996 Scott K. Stevens
4 *
5 * Mach Operating System
6 * Copyright (c) 1991,1990 Carnegie Mellon University
7 * All Rights Reserved.
8 *
9 * Permission to use, copy, modify and distribute this software and its
10 * documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
17 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 *
29 * $FreeBSD: releng/12.0/sys/arm/include/stack.h 278996 2015-02-19 12:06:57Z andrew $
30 */
31
32 #ifndef _MACHINE_STACK_H_
33 #define _MACHINE_STACK_H_
34
35 #define INKERNEL(va) (((vm_offset_t)(va)) >= VM_MIN_KERNEL_ADDRESS)
36
37 #define FR_SCP (0)
38 #define FR_RLV (-1)
39 #define FR_RSP (-2)
40 #define FR_RFP (-3)
41
42 /* The state of the unwind process */
43 struct unwind_state {
44 uint32_t registers[16];
45 uint32_t start_pc;
46 uint32_t *insn;
47 u_int entries;
48 u_int byte;
49 uint16_t update_mask;
50 };
51
52 /* The register names */
53 #define FP 11
54 #define SP 13
55 #define LR 14
56 #define PC 15
57
58 int unwind_stack_one(struct unwind_state *, int);
59
60 #endif /* !_MACHINE_STACK_H_ */
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