| Haavard Skinnemoen | 5f97f7f | 2006-09-25 23:32:13 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004-2006 Atmel Corporation |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | #ifndef __ASM_AVR32_PTRACE_H |
| 9 | #define __ASM_AVR32_PTRACE_H |
| 10 | |
| 11 | #define PTRACE_GETREGS 12 |
| 12 | #define PTRACE_SETREGS 13 |
| 13 | |
| 14 | /* |
| 15 | * Status Register bits |
| 16 | */ |
| 17 | #define SR_H 0x40000000 |
| 18 | #define SR_R 0x20000000 |
| 19 | #define SR_J 0x10000000 |
| 20 | #define SR_DM 0x08000000 |
| 21 | #define SR_D 0x04000000 |
| 22 | #define MODE_NMI 0x01c00000 |
| 23 | #define MODE_EXCEPTION 0x01800000 |
| 24 | #define MODE_INT3 0x01400000 |
| 25 | #define MODE_INT2 0x01000000 |
| 26 | #define MODE_INT1 0x00c00000 |
| 27 | #define MODE_INT0 0x00800000 |
| 28 | #define MODE_SUPERVISOR 0x00400000 |
| 29 | #define MODE_USER 0x00000000 |
| 30 | #define MODE_MASK 0x01c00000 |
| 31 | #define SR_EM 0x00200000 |
| 32 | #define SR_I3M 0x00100000 |
| 33 | #define SR_I2M 0x00080000 |
| 34 | #define SR_I1M 0x00040000 |
| 35 | #define SR_I0M 0x00020000 |
| 36 | #define SR_GM 0x00010000 |
| 37 | |
| 38 | #define SR_H_BIT 30 |
| 39 | #define SR_R_BIT 29 |
| 40 | #define SR_J_BIT 28 |
| 41 | #define SR_DM_BIT 27 |
| 42 | #define SR_D_BIT 26 |
| 43 | #define MODE_SHIFT 22 |
| 44 | #define SR_EM_BIT 21 |
| 45 | #define SR_I3M_BIT 20 |
| 46 | #define SR_I2M_BIT 19 |
| 47 | #define SR_I1M_BIT 18 |
| 48 | #define SR_I0M_BIT 17 |
| 49 | #define SR_GM_BIT 16 |
| 50 | |
| 51 | /* The user-visible part */ |
| 52 | #define SR_L 0x00000020 |
| 53 | #define SR_Q 0x00000010 |
| 54 | #define SR_V 0x00000008 |
| 55 | #define SR_N 0x00000004 |
| 56 | #define SR_Z 0x00000002 |
| 57 | #define SR_C 0x00000001 |
| 58 | |
| 59 | #define SR_L_BIT 5 |
| 60 | #define SR_Q_BIT 4 |
| 61 | #define SR_V_BIT 3 |
| 62 | #define SR_N_BIT 2 |
| 63 | #define SR_Z_BIT 1 |
| 64 | #define SR_C_BIT 0 |
| 65 | |
| 66 | /* |
| 67 | * The order is defined by the stmts instruction. r0 is stored first, |
| 68 | * so it gets the highest address. |
| 69 | * |
| 70 | * Registers 0-12 are general-purpose registers (r12 is normally used for |
| 71 | * the function return value). |
| 72 | * Register 13 is the stack pointer |
| 73 | * Register 14 is the link register |
| 74 | * Register 15 is the program counter (retrieved from the RAR sysreg) |
| 75 | */ |
| 76 | #define FRAME_SIZE_FULL 72 |
| 77 | #define REG_R12_ORIG 68 |
| 78 | #define REG_R0 64 |
| 79 | #define REG_R1 60 |
| 80 | #define REG_R2 56 |
| 81 | #define REG_R3 52 |
| 82 | #define REG_R4 48 |
| 83 | #define REG_R5 44 |
| 84 | #define REG_R6 40 |
| 85 | #define REG_R7 36 |
| 86 | #define REG_R8 32 |
| 87 | #define REG_R9 28 |
| 88 | #define REG_R10 24 |
| 89 | #define REG_R11 20 |
| 90 | #define REG_R12 16 |
| 91 | #define REG_SP 12 |
| 92 | #define REG_LR 8 |
| 93 | |
| 94 | #define FRAME_SIZE_MIN 8 |
| 95 | #define REG_PC 4 |
| 96 | #define REG_SR 0 |
| 97 | |
| 98 | #ifndef __ASSEMBLY__ |
| 99 | struct pt_regs { |
| 100 | /* These are always saved */ |
| 101 | unsigned long sr; |
| 102 | unsigned long pc; |
| 103 | |
| 104 | /* These are sometimes saved */ |
| 105 | unsigned long lr; |
| 106 | unsigned long sp; |
| 107 | unsigned long r12; |
| 108 | unsigned long r11; |
| 109 | unsigned long r10; |
| 110 | unsigned long r9; |
| 111 | unsigned long r8; |
| 112 | unsigned long r7; |
| 113 | unsigned long r6; |
| 114 | unsigned long r5; |
| 115 | unsigned long r4; |
| 116 | unsigned long r3; |
| 117 | unsigned long r2; |
| 118 | unsigned long r1; |
| 119 | unsigned long r0; |
| 120 | |
| 121 | /* Only saved on system call */ |
| 122 | unsigned long r12_orig; |
| 123 | }; |
| 124 | |
| 125 | #ifdef __KERNEL__ |
| 126 | # define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER) |
| 127 | extern void show_regs (struct pt_regs *); |
| 128 | |
| 129 | static __inline__ int valid_user_regs(struct pt_regs *regs) |
| 130 | { |
| 131 | /* |
| 132 | * Some of the Java bits might be acceptable if/when we |
| 133 | * implement some support for that stuff... |
| 134 | */ |
| 135 | if ((regs->sr & 0xffff0000) == 0) |
| 136 | return 1; |
| 137 | |
| 138 | /* |
| 139 | * Force status register flags to be sane and report this |
| 140 | * illegal behaviour... |
| 141 | */ |
| 142 | regs->sr &= 0x0000ffff; |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | #define instruction_pointer(regs) ((regs)->pc) |
| 147 | |
| 148 | #define profile_pc(regs) instruction_pointer(regs) |
| 149 | |
| 150 | #endif /* __KERNEL__ */ |
| 151 | |
| 152 | #endif /* ! __ASSEMBLY__ */ |
| 153 | |
| 154 | #endif /* __ASM_AVR32_PTRACE_H */ |