include/asm-blackfin/ptrace.h

   1 #ifndef _BFIN_PTRACE_H
   2 #define _BFIN_PTRACE_H
   3
   4 /*
   5  * GCC defines register number like this:
   6  * -----------------------------
   7  *       0 - 7 are data registers R0-R7
   8  *       8 - 15 are address registers P0-P7
   9  *      16 - 31 dsp registers I/B/L0 -- I/B/L3 & M0--M3
  10  *      32 - 33 A registers A0 & A1
  11  *      34 -    status register
  12  * -----------------------------
  13  *
  14  * We follows above, except:
  15  *      32-33 --- Low 32-bit of A0&1
  16  *      34-35 --- High 8-bit of A0&1
  17  */
  18
  19 #ifndef __ASSEMBLY__
  20
  21 /* this struct defines the way the registers are stored on the
  22    stack during a system call. */
  23
  24 struct pt_regs {
  25         long orig_pc;
  26         long ipend;
  27         long seqstat;
  28         long rete;
  29         long retn;
  30         long retx;
  31         long pc;                /* PC == RETI */
  32         long rets;
  33         long reserved;          /* Used as scratch during system calls */
  34         long astat;
  35         long lb1;
  36         long lb0;
  37         long lt1;
  38         long lt0;
  39         long lc1;
  40         long lc0;
  41         long a1w;
  42         long a1x;
  43         long a0w;
  44         long a0x;
  45         long b3;
  46         long b2;
  47         long b1;
  48         long b0;
  49         long l3;
  50         long l2;
  51         long l1;
  52         long l0;
  53         long m3;
  54         long m2;
  55         long m1;
  56         long m0;
  57         long i3;
  58         long i2;
  59         long i1;
  60         long i0;
  61         long usp;
  62         long fp;
  63         long p5;
  64         long p4;
  65         long p3;
  66         long p2;
  67         long p1;
  68         long p0;
  69         long r7;
  70         long r6;
  71         long r5;
  72         long r4;
  73         long r3;
  74         long r2;
  75         long r1;
  76         long r0;
  77         long orig_r0;
  78         long orig_p0;
  79         long syscfg;
  80 };
  81
  82 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
  83 #define PTRACE_GETREGS            12
  84 #define PTRACE_SETREGS            13    /* ptrace signal  */
  85
  86 #ifdef CONFIG_BINFMT_ELF_FDPIC
  87 #define PTRACE_GETFDPIC           31
  88 #define PTRACE_GETFDPIC_EXEC      0
  89 #define PTRACE_GETFDPIC_INTERP    1
  90 #endif
  91
  92 #define PS_S  (0x0002)
  93
  94 /* user_mode returns true if only one bit is set in IPEND, other than the
  95    master interrupt enable.  */
  96 #define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1)))
  97 #define instruction_pointer(regs) ((regs)->pc)
  98 #define profile_pc(regs) instruction_pointer(regs)
  99 extern void show_regs(struct pt_regs *);
 100
 101 #endif                          /* __ASSEMBLY__ */
 102
 103 /*
 104  * Offsets used by 'ptrace' system call interface.
 105  */
 106
 107 #define PT_R0 204
 108 #define PT_R1 200
 109 #define PT_R2 196
 110 #define PT_R3 192
 111 #define PT_R4 188
 112 #define PT_R5 184
 113 #define PT_R6 180
 114 #define PT_R7 176
 115 #define PT_P0 172
 116 #define PT_P1 168
 117 #define PT_P2 164
 118 #define PT_P3 160
 119 #define PT_P4 156
 120 #define PT_P5 152
 121 #define PT_FP 148
 122 #define PT_USP 144
 123 #define PT_I0 140
 124 #define PT_I1 136
 125 #define PT_I2 132
 126 #define PT_I3 128
 127 #define PT_M0 124
 128 #define PT_M1 120
 129 #define PT_M2 116
 130 #define PT_M3 112
 131 #define PT_L0 108
 132 #define PT_L1 104
 133 #define PT_L2 100
 134 #define PT_L3 96
 135 #define PT_B0 92
 136 #define PT_B1 88
 137 #define PT_B2 84
 138 #define PT_B3 80
 139 #define PT_A0X 76
 140 #define PT_A0W 72
 141 #define PT_A1X 68
 142 #define PT_A1W 64
 143 #define PT_LC0 60
 144 #define PT_LC1 56
 145 #define PT_LT0 52
 146 #define PT_LT1 48
 147 #define PT_LB0 44
 148 #define PT_LB1 40
 149 #define PT_ASTAT 36
 150 #define PT_RESERVED 32
 151 #define PT_RETS 28
 152 #define PT_PC 24
 153 #define PT_RETX 20
 154 #define PT_RETN 16
 155 #define PT_RETE 12
 156 #define PT_SEQSTAT 8
 157 #define PT_IPEND 4
 158
 159 #define PT_SYSCFG 216
 160 #define PT_TEXT_ADDR 220
 161 #define PT_TEXT_END_ADDR 224
 162 #define PT_DATA_ADDR 228
 163 #define PT_FDPIC_EXEC 232
 164 #define PT_FDPIC_INTERP 236
 165
 166 #endif                          /* _BFIN_PTRACE_H */