Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle |
| 7 | * Copyright (C) 1999, 2000 Silicon Graphics, Inc. |
| 8 | */ |
| 9 | #ifndef _ASM_PTRACE_H |
| 10 | #define _ASM_PTRACE_H |
| 11 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | /* 0 - 31 are integer registers, 32 - 63 are fp registers. */ |
| 14 | #define FPR_BASE 32 |
| 15 | #define PC 64 |
| 16 | #define CAUSE 65 |
| 17 | #define BADVADDR 66 |
| 18 | #define MMHI 67 |
| 19 | #define MMLO 68 |
| 20 | #define FPC_CSR 69 |
| 21 | #define FPC_EIR 70 |
Ralf Baechle | e50c0a8 | 2005-05-31 11:49:19 +0000 | [diff] [blame] | 22 | #define DSP_BASE 71 /* 3 more hi / lo register pairs */ |
| 23 | #define DSP_CONTROL 77 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
| 25 | /* |
| 26 | * This struct defines the way the registers are stored on the stack during a |
| 27 | * system call/exception. As usual the registers k0/k1 aren't being saved. |
| 28 | */ |
| 29 | struct pt_regs { |
Ralf Baechle | 875d43e | 2005-09-03 15:56:16 -0700 | [diff] [blame] | 30 | #ifdef CONFIG_32BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | /* Pad bytes for argument save space on the stack. */ |
| 32 | unsigned long pad0[6]; |
| 33 | #endif |
| 34 | |
| 35 | /* Saved main processor registers. */ |
| 36 | unsigned long regs[32]; |
| 37 | |
| 38 | /* Saved special registers. */ |
| 39 | unsigned long cp0_status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | unsigned long hi; |
Ralf Baechle | e50c0a8 | 2005-05-31 11:49:19 +0000 | [diff] [blame] | 41 | unsigned long lo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | unsigned long cp0_badvaddr; |
| 43 | unsigned long cp0_cause; |
| 44 | unsigned long cp0_epc; |
Ralf Baechle | 41c594a | 2006-04-05 09:45:45 +0100 | [diff] [blame] | 45 | #ifdef CONFIG_MIPS_MT_SMTC |
| 46 | unsigned long cp0_tcstatus; |
Ralf Baechle | 41c594a | 2006-04-05 09:45:45 +0100 | [diff] [blame] | 47 | #endif /* CONFIG_MIPS_MT_SMTC */ |
Franck Bui-Huu | 0e90f49 | 2006-09-29 11:08:59 +0200 | [diff] [blame] | 48 | } __attribute__ ((aligned (8))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ |
Daniel Jacobowitz | ea3d710 | 2005-09-28 18:11:15 -0400 | [diff] [blame] | 51 | #define PTRACE_GETREGS 12 |
| 52 | #define PTRACE_SETREGS 13 |
| 53 | #define PTRACE_GETFPREGS 14 |
| 54 | #define PTRACE_SETFPREGS 15 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | /* #define PTRACE_GETFPXREGS 18 */ |
| 56 | /* #define PTRACE_SETFPXREGS 19 */ |
| 57 | |
| 58 | #define PTRACE_OLDSETOPTIONS 21 |
| 59 | |
| 60 | #define PTRACE_GET_THREAD_AREA 25 |
| 61 | #define PTRACE_SET_THREAD_AREA 26 |
| 62 | |
Daniel Jacobowitz | ea3d710 | 2005-09-28 18:11:15 -0400 | [diff] [blame] | 63 | /* Calls to trace a 64bit program from a 32bit program. */ |
| 64 | #define PTRACE_PEEKTEXT_3264 0xc0 |
| 65 | #define PTRACE_PEEKDATA_3264 0xc1 |
| 66 | #define PTRACE_POKETEXT_3264 0xc2 |
| 67 | #define PTRACE_POKEDATA_3264 0xc3 |
| 68 | #define PTRACE_GET_THREAD_AREA_3264 0xc4 |
| 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | #ifdef __KERNEL__ |
| 71 | |
| 72 | #include <linux/linkage.h> |
Atsushi Nemoto | 8f9a2b3 | 2006-09-07 01:00:22 +0900 | [diff] [blame] | 73 | #include <asm/isadep.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | |
| 75 | /* |
| 76 | * Does the process account for user or for system time? |
| 77 | */ |
| 78 | #define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER) |
| 79 | |
| 80 | #define instruction_pointer(regs) ((regs)->cp0_epc) |
| 81 | #define profile_pc(regs) instruction_pointer(regs) |
| 82 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit); |
| 84 | |
Ralf Baechle | 2d911e9 | 2006-12-10 15:02:17 +0000 | [diff] [blame] | 85 | extern NORET_TYPE void die(const char *, struct pt_regs *); |
| 86 | |
| 87 | static inline void die_if_kernel(const char *str, struct pt_regs *regs) |
| 88 | { |
| 89 | if (unlikely(!user_mode(regs))) |
| 90 | die(str, regs); |
| 91 | } |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | #endif |
| 94 | |
| 95 | #endif /* _ASM_PTRACE_H */ |