ptrace.h (d4bbf7e7759afc172e2bfbc5c416324590049cdd) ptrace.h (83596729adbca4ff3b0273de22e166c64aea49ec)
1/*
2 * include/asm-xtensa/ptrace.h
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
9 */
1/*
2 * include/asm-xtensa/ptrace.h
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
9 */
10
11#ifndef _XTENSA_PTRACE_H
12#define _XTENSA_PTRACE_H
13
10#ifndef _XTENSA_PTRACE_H
11#define _XTENSA_PTRACE_H
12
14/*
15 * Kernel stack
16 *
17 * +-----------------------+ -------- STACK_SIZE
18 * | register file | |
19 * +-----------------------+ |
20 * | struct pt_regs | |
21 * +-----------------------+ | ------ PT_REGS_OFFSET
22 * double : 16 bytes spill area : | ^
23 * excetion :- - - - - - - - - - - -: | |
24 * frame : struct pt_regs : | |
25 * :- - - - - - - - - - - -: | |
26 * | | | |
27 * | memory stack | | |
28 * | | | |
29 * ~ ~ ~ ~
30 * ~ ~ ~ ~
31 * | | | |
32 * | | | |
33 * +-----------------------+ | | --- STACK_BIAS
34 * | struct task_struct | | | ^
35 * current --> +-----------------------+ | | |
36 * | struct thread_info | | | |
37 * +-----------------------+ --------
38 */
13#include <uapi/asm/ptrace.h>
39
14
40#define KERNEL_STACK_SIZE (2 * PAGE_SIZE)
41
15
42/* Offsets for exception_handlers[] (3 x 64-entries x 4-byte tables). */
43
44#define EXC_TABLE_KSTK 0x004 /* Kernel Stack */
45#define EXC_TABLE_DOUBLE_SAVE 0x008 /* Double exception save area for a0 */
46#define EXC_TABLE_FIXUP 0x00c /* Fixup handler */
47#define EXC_TABLE_PARAM 0x010 /* For passing a parameter to fixup */
48#define EXC_TABLE_SYSCALL_SAVE 0x014 /* For fast syscall handler */
49#define EXC_TABLE_FAST_USER 0x100 /* Fast user exception handler */
50#define EXC_TABLE_FAST_KERNEL 0x200 /* Fast kernel exception handler */
51#define EXC_TABLE_DEFAULT 0x300 /* Default C-Handler */
52#define EXC_TABLE_SIZE 0x400
53
54/* Registers used by strace */
55
56#define REG_A_BASE 0x0000
57#define REG_AR_BASE 0x0100
58#define REG_PC 0x0020
59#define REG_PS 0x02e6
60#define REG_WB 0x0248
61#define REG_WS 0x0249
62#define REG_LBEG 0x0200
63#define REG_LEND 0x0201
64#define REG_LCOUNT 0x0202
65#define REG_SAR 0x0203
66
67#define SYSCALL_NR 0x00ff
68
69/* Other PTRACE_ values defined in <linux/ptrace.h> using values 0-9,16,17,24 */
70
71#define PTRACE_GETREGS 12
72#define PTRACE_SETREGS 13
73#define PTRACE_GETXTREGS 18
74#define PTRACE_SETXTREGS 19
75
76#ifdef __KERNEL__
77
78#ifndef __ASSEMBLY__
79
80#include <asm/coprocessor.h>
81
82/*
83 * This struct defines the way the registers are stored on the
84 * kernel stack during a system call or other kernel entry.
85 */

--- 41 unchanged lines hidden (view full) ---

127
128#else /* __ASSEMBLY__ */
129
130# include <asm/asm-offsets.h>
131#define PT_REGS_OFFSET (KERNEL_STACK_SIZE - PT_USER_SIZE)
132
133#endif /* !__ASSEMBLY__ */
134
16#ifndef __ASSEMBLY__
17
18#include <asm/coprocessor.h>
19
20/*
21 * This struct defines the way the registers are stored on the
22 * kernel stack during a system call or other kernel entry.
23 */

--- 41 unchanged lines hidden (view full) ---

65
66#else /* __ASSEMBLY__ */
67
68# include <asm/asm-offsets.h>
69#define PT_REGS_OFFSET (KERNEL_STACK_SIZE - PT_USER_SIZE)
70
71#endif /* !__ASSEMBLY__ */
72
135#endif /* __KERNEL__ */
136
137#endif /* _XTENSA_PTRACE_H */
73#endif /* _XTENSA_PTRACE_H */