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Diffstat (limited to 'arch/mips/include/asm/ptrace.h')
-rw-r--r-- | arch/mips/include/asm/ptrace.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h new file mode 100644 index 0000000..c00cca2 --- /dev/null +++ b/arch/mips/include/asm/ptrace.h @@ -0,0 +1,102 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle + * Copyright (C) 1999, 2000 Silicon Graphics, Inc. + */ +#ifndef _ASM_PTRACE_H +#define _ASM_PTRACE_H + +#ifdef CONFIG_64BIT +#define __ARCH_WANT_COMPAT_SYS_PTRACE +#endif + +/* 0 - 31 are integer registers, 32 - 63 are fp registers. */ +#define FPR_BASE 32 +#define PC 64 +#define CAUSE 65 +#define BADVADDR 66 +#define MMHI 67 +#define MMLO 68 +#define FPC_CSR 69 +#define FPC_EIR 70 +#define DSP_BASE 71 /* 3 more hi / lo register pairs */ +#define DSP_CONTROL 77 +#define ACX 78 + +/* + * This struct defines the way the registers are stored on the stack during a + * system call/exception. As usual the registers k0/k1 aren't being saved. + */ +struct pt_regs { +#ifdef CONFIG_32BIT + /* Pad bytes for argument save space on the stack. */ + unsigned long pad0[6]; +#endif + + /* Saved main processor registers. */ + unsigned long regs[32]; + + /* Saved special registers. */ + unsigned long cp0_status; + unsigned long hi; + unsigned long lo; +#ifdef CONFIG_CPU_HAS_SMARTMIPS + unsigned long acx; +#endif + unsigned long cp0_badvaddr; + unsigned long cp0_cause; + unsigned long cp0_epc; +#ifdef CONFIG_MIPS_MT_SMTC + unsigned long cp0_tcstatus; +#endif /* CONFIG_MIPS_MT_SMTC */ +} __attribute__ ((aligned (8))); + +/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 +/* #define PTRACE_GETFPXREGS 18 */ +/* #define PTRACE_SETFPXREGS 19 */ + +#define PTRACE_OLDSETOPTIONS 21 + +#define PTRACE_GET_THREAD_AREA 25 +#define PTRACE_SET_THREAD_AREA 26 + +/* Calls to trace a 64bit program from a 32bit program. */ +#define PTRACE_PEEKTEXT_3264 0xc0 +#define PTRACE_PEEKDATA_3264 0xc1 +#define PTRACE_POKETEXT_3264 0xc2 +#define PTRACE_POKEDATA_3264 0xc3 +#define PTRACE_GET_THREAD_AREA_3264 0xc4 + +#ifdef __KERNEL__ + +#include <linux/linkage.h> +#include <asm/isadep.h> + +/* + * Does the process account for user or for system time? + */ +#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER) + +#define instruction_pointer(regs) ((regs)->cp0_epc) +#define profile_pc(regs) instruction_pointer(regs) + +extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit); + +extern NORET_TYPE void die(const char *, const struct pt_regs *) ATTRIB_NORET; + +static inline void die_if_kernel(const char *str, const struct pt_regs *regs) +{ + if (unlikely(!user_mode(regs))) + die(str, regs); +} + +#endif + +#endif /* _ASM_PTRACE_H */ |