include/asm-mips/ptrace.h

   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 #include <linux/config.h>
  13
  14 #include <asm/isadep.h>
  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
  28 /*
  29  * This struct defines the way the registers are stored on the stack during a
  30  * system call/exception. As usual the registers k0/k1 aren't being saved.
  31  */
  32 struct pt_regs {
  33 #ifdef CONFIG_32BIT
  34         /* Pad bytes for argument save space on the stack. */
  35         unsigned long pad0[6];
  36 #endif
  37
  38         /* Saved main processor registers. */
  39         unsigned long regs[32];
  40
  41         /* Saved special registers. */
  42         unsigned long cp0_status;
  43         unsigned long hi;
  44         unsigned long lo;
  45         unsigned long cp0_badvaddr;
  46         unsigned long cp0_cause;
  47         unsigned long cp0_epc;
  48 };
  49
  50 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
  51 /* #define PTRACE_GETREGS               12 */
  52 /* #define PTRACE_SETREGS               13 */
  53 /* #define PTRACE_GETFPREGS             14 */
  54 /* #define PTRACE_SETFPREGS             15 */
  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
  63 #ifdef __KERNEL__
  64
  65 #include <linux/linkage.h>
  66
  67 /*
  68  * Does the process account for user or for system time?
  69  */
  70 #define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
  71
  72 #define instruction_pointer(regs) ((regs)->cp0_epc)
  73 #define profile_pc(regs) instruction_pointer(regs)
  74
  75 extern void show_regs(struct pt_regs *);
  76
  77 extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
  78
  79 #endif
  80
  81 #endif /* _ASM_PTRACE_H */