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ptrace.h
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1 /*
2  * arch/arm/include/asm/ptrace.h
3  *
4  * Copyright (C) 1996-2003 Russell King
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 #ifndef _UAPI__ASM_ARM_PTRACE_H
11 #define _UAPI__ASM_ARM_PTRACE_H
12 
13 #include <asm/hwcap.h>
14 
15 #define PTRACE_GETREGS 12
16 #define PTRACE_SETREGS 13
17 #define PTRACE_GETFPREGS 14
18 #define PTRACE_SETFPREGS 15
19 /* PTRACE_ATTACH is 16 */
20 /* PTRACE_DETACH is 17 */
21 #define PTRACE_GETWMMXREGS 18
22 #define PTRACE_SETWMMXREGS 19
23 /* 20 is unused */
24 #define PTRACE_OLDSETOPTIONS 21
25 #define PTRACE_GET_THREAD_AREA 22
26 #define PTRACE_SET_SYSCALL 23
27 /* PTRACE_SYSCALL is 24 */
28 #define PTRACE_GETCRUNCHREGS 25
29 #define PTRACE_SETCRUNCHREGS 26
30 #define PTRACE_GETVFPREGS 27
31 #define PTRACE_SETVFPREGS 28
32 #define PTRACE_GETHBPREGS 29
33 #define PTRACE_SETHBPREGS 30
34 
35 /*
36  * PSR bits
37  */
38 #define USR26_MODE 0x00000000
39 #define FIQ26_MODE 0x00000001
40 #define IRQ26_MODE 0x00000002
41 #define SVC26_MODE 0x00000003
42 #define USR_MODE 0x00000010
43 #define FIQ_MODE 0x00000011
44 #define IRQ_MODE 0x00000012
45 #define SVC_MODE 0x00000013
46 #define ABT_MODE 0x00000017
47 #define HYP_MODE 0x0000001a
48 #define UND_MODE 0x0000001b
49 #define SYSTEM_MODE 0x0000001f
50 #define MODE32_BIT 0x00000010
51 #define MODE_MASK 0x0000001f
52 #define PSR_T_BIT 0x00000020
53 #define PSR_F_BIT 0x00000040
54 #define PSR_I_BIT 0x00000080
55 #define PSR_A_BIT 0x00000100
56 #define PSR_E_BIT 0x00000200
57 #define PSR_J_BIT 0x01000000
58 #define PSR_Q_BIT 0x08000000
59 #define PSR_V_BIT 0x10000000
60 #define PSR_C_BIT 0x20000000
61 #define PSR_Z_BIT 0x40000000
62 #define PSR_N_BIT 0x80000000
63 
64 /*
65  * Groups of PSR bits
66  */
67 #define PSR_f 0xff000000 /* Flags */
68 #define PSR_s 0x00ff0000 /* Status */
69 #define PSR_x 0x0000ff00 /* Extension */
70 #define PSR_c 0x000000ff /* Control */
71 
72 /*
73  * ARMv7 groups of PSR bits
74  */
75 #define APSR_MASK 0xf80f0000 /* N, Z, C, V, Q and GE flags */
76 #define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */
77 #define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */
78 #define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */
79 
80 /*
81  * Default endianness state
82  */
83 #ifdef CONFIG_CPU_ENDIAN_BE8
84 #define PSR_ENDSTATE PSR_E_BIT
85 #else
86 #define PSR_ENDSTATE 0
87 #endif
88 
89 /*
90  * These are 'magic' values for PTRACE_PEEKUSR that return info about where a
91  * process is located in memory.
92  */
93 #define PT_TEXT_ADDR 0x10000
94 #define PT_DATA_ADDR 0x10004
95 #define PT_TEXT_END_ADDR 0x10008
96 
97 #ifndef __ASSEMBLY__
98 
99 /*
100  * This struct defines the way the registers are stored on the
101  * stack during a system call. Note that sizeof(struct pt_regs)
102  * has to be a multiple of 8.
103  */
104 #ifndef __KERNEL__
105 struct pt_regs {
106  long uregs[18];
107 };
108 #endif /* __KERNEL__ */
109 
110 #define ARM_cpsr uregs[16]
111 #define ARM_pc uregs[15]
112 #define ARM_lr uregs[14]
113 #define ARM_sp uregs[13]
114 #define ARM_ip uregs[12]
115 #define ARM_fp uregs[11]
116 #define ARM_r10 uregs[10]
117 #define ARM_r9 uregs[9]
118 #define ARM_r8 uregs[8]
119 #define ARM_r7 uregs[7]
120 #define ARM_r6 uregs[6]
121 #define ARM_r5 uregs[5]
122 #define ARM_r4 uregs[4]
123 #define ARM_r3 uregs[3]
124 #define ARM_r2 uregs[2]
125 #define ARM_r1 uregs[1]
126 #define ARM_r0 uregs[0]
127 #define ARM_ORIG_r0 uregs[17]
128 
129 /*
130  * The size of the user-visible VFP state as seen by PTRACE_GET/SETVFPREGS
131  * and core dumps.
132  */
133 #define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ )
134 
135 
136 #endif /* __ASSEMBLY__ */
137 
138 #endif /* _UAPI__ASM_ARM_PTRACE_H */