include/asm-cris/arch-v10/ptrace.h

   1 #ifndef _CRIS_ARCH_PTRACE_H
   2 #define _CRIS_ARCH_PTRACE_H
   3
   4 /* Frame types */
   5
   6 #define CRIS_FRAME_NORMAL   0 /* normal frame without SBFS stacking */
   7 #define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return
   8                                  path */
   9
  10 /* Register numbers in the ptrace system call interface */
  11
  12 #define PT_FRAMETYPE 0
  13 #define PT_ORIG_R10  1
  14 #define PT_R13       2
  15 #define PT_R12       3
  16 #define PT_R11       4
  17 #define PT_R10       5
  18 #define PT_R9        6
  19 #define PT_R8        7
  20 #define PT_R7        8
  21 #define PT_R6        9
  22 #define PT_R5        10
  23 #define PT_R4        11
  24 #define PT_R3        12
  25 #define PT_R2        13
  26 #define PT_R1        14
  27 #define PT_R0        15
  28 #define PT_MOF       16
  29 #define PT_DCCR      17
  30 #define PT_SRP       18
  31 #define PT_IRP       19    /* This is actually the debugged process' PC */
  32 #define PT_CSRINSTR  20    /* CPU Status record remnants -
  33                               valid if frametype == busfault */
  34 #define PT_CSRADDR   21
  35 #define PT_CSRDATA   22
  36 #define PT_USP       23    /* special case - USP is not in the pt_regs */
  37 #define PT_MAX       23
  38
  39 /* Condition code bit numbers.  The same numbers apply to CCR of course,
  40    but we use DCCR everywhere else, so let's try and be consistent.  */
  41 #define C_DCCR_BITNR 0
  42 #define V_DCCR_BITNR 1
  43 #define Z_DCCR_BITNR 2
  44 #define N_DCCR_BITNR 3
  45 #define X_DCCR_BITNR 4
  46 #define I_DCCR_BITNR 5
  47 #define B_DCCR_BITNR 6
  48 #define M_DCCR_BITNR 7
  49 #define U_DCCR_BITNR 8
  50 #define P_DCCR_BITNR 9
  51 #define F_DCCR_BITNR 10
  52
  53 /* pt_regs not only specifices the format in the user-struct during
  54  * ptrace but is also the frame format used in the kernel prologue/epilogues
  55  * themselves
  56  */
  57
  58 struct pt_regs {
  59         unsigned long frametype;  /* type of stackframe */
  60         unsigned long orig_r10;
  61         /* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */
  62         unsigned long r13;
  63         unsigned long r12;
  64         unsigned long r11;
  65         unsigned long r10;
  66         unsigned long r9;
  67         unsigned long r8;
  68         unsigned long r7;
  69         unsigned long r6;
  70         unsigned long r5;
  71         unsigned long r4;
  72         unsigned long r3;
  73         unsigned long r2;
  74         unsigned long r1;
  75         unsigned long r0;
  76         unsigned long mof;
  77         unsigned long dccr;
  78         unsigned long srp;
  79         unsigned long irp; /* This is actually the debugged process' PC */
  80         unsigned long csrinstr;
  81         unsigned long csraddr;
  82         unsigned long csrdata;
  83 };
  84
  85 /* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S)
  86  * when doing a context-switch. it is used (apart from in resume) when a new
  87  * thread is made and we need to make _resume (which is starting it for the
  88  * first time) realise what is going on.
  89  *
  90  * Actually, the use is very close to the thread struct (TSS) in that both the
  91  * switch_stack and the TSS are used to keep thread stuff when switching in
  92  * _resume.
  93  */
  94
  95 struct switch_stack {
  96         unsigned long r9;
  97         unsigned long r8;
  98         unsigned long r7;
  99         unsigned long r6;
 100         unsigned long r5;
 101         unsigned long r4;
 102         unsigned long r3;
 103         unsigned long r2;
 104         unsigned long r1;
 105         unsigned long r0;
 106         unsigned long return_ip; /* ip that _resume will return to */
 107 };
 108
 109 /* bit 8 is user-mode flag */
 110 #define user_mode(regs) (((regs)->dccr & 0x100) != 0)
 111 #define instruction_pointer(regs) ((regs)->irp)
 112 #define profile_pc(regs) instruction_pointer(regs)
 113 extern void show_regs(struct pt_regs *);
 114
 115 #endif