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 12 #ifdef CONFIG_64BIT 13 #define __ARCH_WANT_COMPAT_SYS_PTRACE 14 #endif 15 16 /* 0 - 31 are integer registers, 32 - 63 are fp registers. */ 17 #define FPR_BASE 32 18 #define PC 64 19 #define CAUSE 65 20 #define BADVADDR 66 21 #define MMHI 67 22 #define MMLO 68 23 #define FPC_CSR 69 24 #define FPC_EIR 70 25 #define DSP_BASE 71 /* 3 more hi / lo register pairs */ 26 #define DSP_CONTROL 77 27 #define ACX 78 28 29 /* 30 * This struct defines the way the registers are stored on the stack during a 31 * system call/exception. As usual the registers k0/k1 aren't being saved. 32 */ 33 struct pt_regs { 34 #ifdef CONFIG_32BIT 35 /* Pad bytes for argument save space on the stack. */ 36 unsigned long pad0[6]; 37 #endif 38 39 /* Saved main processor registers. */ 40 unsigned long regs[32]; 41 42 /* Saved special registers. */ 43 unsigned long cp0_status; 44 unsigned long hi; 45 unsigned long lo; 46 #ifdef CONFIG_CPU_HAS_SMARTMIPS 47 unsigned long acx; 48 #endif 49 unsigned long cp0_badvaddr; 50 unsigned long cp0_cause; 51 unsigned long cp0_epc; 52 #ifdef CONFIG_MIPS_MT_SMTC 53 unsigned long cp0_tcstatus; 54 #endif /* CONFIG_MIPS_MT_SMTC */ 55 } __attribute__ ((aligned (8))); 56 57 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ 58 #define PTRACE_GETREGS 12 59 #define PTRACE_SETREGS 13 60 #define PTRACE_GETFPREGS 14 61 #define PTRACE_SETFPREGS 15 62 /* #define PTRACE_GETFPXREGS 18 */ 63 /* #define PTRACE_SETFPXREGS 19 */ 64 65 #define PTRACE_OLDSETOPTIONS 21 66 67 #define PTRACE_GET_THREAD_AREA 25 68 #define PTRACE_SET_THREAD_AREA 26 69 70 /* Calls to trace a 64bit program from a 32bit program. */ 71 #define PTRACE_PEEKTEXT_3264 0xc0 72 #define PTRACE_PEEKDATA_3264 0xc1 73 #define PTRACE_POKETEXT_3264 0xc2 74 #define PTRACE_POKEDATA_3264 0xc3 75 #define PTRACE_GET_THREAD_AREA_3264 0xc4 76 77 #ifdef __KERNEL__ 78 79 #include <linux/linkage.h> 80 #include <asm/isadep.h> 81 82 /* 83 * Does the process account for user or for system time? 84 */ 85 #define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER) 86 87 #define instruction_pointer(regs) ((regs)->cp0_epc) 88 #define profile_pc(regs) instruction_pointer(regs) 89 90 extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit); 91 92 extern NORET_TYPE void die(const char *, const struct pt_regs *) ATTRIB_NORET; 93 94 static inline void die_if_kernel(const char *str, const struct pt_regs *regs) 95 { 96 if (unlikely(!user_mode(regs))) 97 die(str, regs); 98 } 99 100 #endif 101 102 #endif /* _ASM_PTRACE_H */ 103