include/asm-frv/ptrace.h

   1 /* ptrace.h: ptrace() relevant definitions
   2  *
   3  * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_PTRACE_H
  12 #define _ASM_PTRACE_H
  13
  14 #include <asm/registers.h>
  15 #include <asm/irq_regs.h>
  16
  17 #define in_syscall(regs) (((regs)->tbr & TBR_TT) == TBR_TT_TRAP0)
  18
  19
  20 #define PT_PSR          0
  21 #define PT_ISR          1
  22 #define PT_CCR          2
  23 #define PT_CCCR         3
  24 #define PT_LR           4
  25 #define PT_LCR          5
  26 #define PT_PC           6
  27
  28 #define PT__STATUS      7       /* exception status */
  29 #define PT_SYSCALLNO    8       /* syscall number or -1 */
  30 #define PT_ORIG_GR8     9       /* saved GR8 for signal handling */
  31 #define PT_GNER0        10
  32 #define PT_GNER1        11
  33 #define PT_IACC0H       12
  34 #define PT_IACC0L       13
  35
  36 #define PT_GR(j)        ( 14 + (j))     /* GRj for 0<=j<=63 */
  37 #define PT_FR(j)        ( 78 + (j))     /* FRj for 0<=j<=63 */
  38 #define PT_FNER(j)      (142 + (j))     /* FNERj for 0<=j<=1 */
  39 #define PT_MSR(j)       (144 + (j))     /* MSRj for 0<=j<=2 */
  40 #define PT_ACC(j)       (146 + (j))     /* ACCj for 0<=j<=7 */
  41 #define PT_ACCG(jklm)   (154 + (jklm))  /* ACCGjklm for 0<=jklm<=1 (reads four regs per slot) */
  42 #define PT_FSR(j)       (156 + (j))     /* FSRj for 0<=j<=0 */
  43 #define PT__GPEND       78
  44 #define PT__END         157
  45
  46 #define PT_TBR          PT_GR(0)
  47 #define PT_SP           PT_GR(1)
  48 #define PT_FP           PT_GR(2)
  49 #define PT_PREV_FRAME   PT_GR(28)       /* previous exception frame pointer (old gr28 value) */
  50 #define PT_CURR_TASK    PT_GR(29)       /* current task */
  51
  52
  53 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
  54 #define PTRACE_GETREGS          12
  55 #define PTRACE_SETREGS          13
  56 #define PTRACE_GETFPREGS        14
  57 #define PTRACE_SETFPREGS        15
  58 #define PTRACE_GETFDPIC         31      /* get the ELF fdpic loadmap address */
  59
  60 #define PTRACE_GETFDPIC_EXEC    0       /* [addr] request the executable loadmap */
  61 #define PTRACE_GETFDPIC_INTERP  1       /* [addr] request the interpreter loadmap */
  62
  63 #ifndef __ASSEMBLY__
  64
  65 /*
  66  * we dedicate GR28 to keeping a pointer to the current exception frame
  67  * - gr28 is destroyed on entry to the kernel from userspace
  68  */
  69 register struct pt_regs *__frame asm("gr28");
  70
  71 #define user_mode(regs)                 (!((regs)->psr & PSR_S))
  72 #define instruction_pointer(regs)       ((regs)->pc)
  73
  74 extern unsigned long user_stack(const struct pt_regs *);
  75 extern void show_regs(struct pt_regs *);
  76 #define profile_pc(regs) ((regs)->pc)
  77
  78 #endif /* !__ASSEMBLY__ */
  79 #endif /* _ASM_PTRACE_H */