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