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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 _UAPI_XTENSA_PTRACE_H | |
12 | #define _UAPI_XTENSA_PTRACE_H | |
13 | ||
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 | */ | |
39 | ||
40 | #define KERNEL_STACK_SIZE (2 * PAGE_SIZE) | |
41 | ||
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 | |
c91e02bd MF |
75 | #define PTRACE_GETHBPREGS 20 |
76 | #define PTRACE_SETHBPREGS 21 | |
83596729 DH |
77 | |
78 | ||
79 | #endif /* _UAPI_XTENSA_PTRACE_H */ |