include/asm-mips/gdb-stub.h

/* */
   1 /*
   2  *  include/asm-mips/gdb-stub.h
   3  *
   4  *  Copyright (C) 1995 Andreas Busse
   5  */
   6 
   7 #ifndef __ASM_MIPS_GDB_STUB_H
   8 #define __ASM_MIPS_GDB_STUB_H
   9 
  10 
  11 /*
  12  * important register numbers
  13  */
  14 
  15 #define REG_EPC                 37
  16 #define REG_FP                  72
  17 #define REG_SP                  29
  18 
  19 /*
  20  * Stack layout for the GDB exception handler
  21  * Derived from the stack layout described in asm-mips/stackframe.h
  22  *
  23  * The first PTRSIZE*5 bytes are argument save space for C subroutines.
  24  */
  25 #define NUMREGS                 90
  26 
  27 #define GDB_FR_REG0             (PTRSIZE*5)                     /* 0 */
  28 #define GDB_FR_REG1             ((GDB_FR_REG0) + 4)             /* 1 */
  29 #define GDB_FR_REG2             ((GDB_FR_REG1) + 4)             /* 2 */
  30 #define GDB_FR_REG3             ((GDB_FR_REG2) + 4)             /* 3 */
  31 #define GDB_FR_REG4             ((GDB_FR_REG3) + 4)             /* 4 */
  32 #define GDB_FR_REG5             ((GDB_FR_REG4) + 4)             /* 5 */
  33 #define GDB_FR_REG6             ((GDB_FR_REG5) + 4)             /* 6 */
  34 #define GDB_FR_REG7             ((GDB_FR_REG6) + 4)             /* 7 */
  35 #define GDB_FR_REG8             ((GDB_FR_REG7) + 4)             /* 8 */
  36 #define GDB_FR_REG9             ((GDB_FR_REG8) + 4)             /* 9 */
  37 #define GDB_FR_REG10            ((GDB_FR_REG9) + 4)             /* 10 */
  38 #define GDB_FR_REG11            ((GDB_FR_REG10) + 4)            /* 11 */
  39 #define GDB_FR_REG12            ((GDB_FR_REG11) + 4)            /* 12 */
  40 #define GDB_FR_REG13            ((GDB_FR_REG12) + 4)            /* 13 */
  41 #define GDB_FR_REG14            ((GDB_FR_REG13) + 4)            /* 14 */
  42 #define GDB_FR_REG15            ((GDB_FR_REG14) + 4)            /* 15 */
  43 #define GDB_FR_REG16            ((GDB_FR_REG15) + 4)            /* 16 */
  44 #define GDB_FR_REG17            ((GDB_FR_REG16) + 4)            /* 17 */
  45 #define GDB_FR_REG18            ((GDB_FR_REG17) + 4)            /* 18 */
  46 #define GDB_FR_REG19            ((GDB_FR_REG18) + 4)            /* 19 */
  47 #define GDB_FR_REG20            ((GDB_FR_REG19) + 4)            /* 20 */
  48 #define GDB_FR_REG21            ((GDB_FR_REG20) + 4)            /* 21 */
  49 #define GDB_FR_REG22            ((GDB_FR_REG21) + 4)            /* 22 */
  50 #define GDB_FR_REG23            ((GDB_FR_REG22) + 4)            /* 23 */
  51 #define GDB_FR_REG24            ((GDB_FR_REG23) + 4)            /* 24 */
  52 #define GDB_FR_REG25            ((GDB_FR_REG24) + 4)            /* 25 */
  53 #define GDB_FR_REG26            ((GDB_FR_REG25) + 4)            /* 26 */
  54 #define GDB_FR_REG27            ((GDB_FR_REG26) + 4)            /* 27 */
  55 #define GDB_FR_REG28            ((GDB_FR_REG27) + 4)            /* 28 */
  56 #define GDB_FR_REG29            ((GDB_FR_REG28) + 4)            /* 29 */
  57 #define GDB_FR_REG30            ((GDB_FR_REG29) + 4)            /* 30 */
  58 #define GDB_FR_REG31            ((GDB_FR_REG30) + 4)            /* 31 */
  59         
  60 /*
  61  * Saved special registers
  62  */
  63 #define GDB_FR_STATUS           ((GDB_FR_REG31) + 4)            /* 32 */
  64 #define GDB_FR_LO               ((GDB_FR_STATUS) + 4)           /* 33 */
  65 #define GDB_FR_HI               ((GDB_FR_LO) + 4)               /* 34 */
  66 #define GDB_FR_BADVADDR         ((GDB_FR_HI) + 4)               /* 35 */
  67 #define GDB_FR_CAUSE            ((GDB_FR_BADVADDR) + 4)         /* 36 */
  68 #define GDB_FR_EPC              ((GDB_FR_CAUSE) + 4)            /* 37 */
  69 
  70 /*
  71  * Saved floating point registers
  72  */
  73 #define GDB_FR_FPR0             ((GDB_FR_EPC) + 4)              /* 38 */
  74 #define GDB_FR_FPR1             ((GDB_FR_FPR0) + 4)             /* 39 */
  75 #define GDB_FR_FPR2             ((GDB_FR_FPR1) + 4)             /* 40 */
  76 #define GDB_FR_FPR3             ((GDB_FR_FPR2) + 4)             /* 41 */
  77 #define GDB_FR_FPR4             ((GDB_FR_FPR3) + 4)             /* 42 */
  78 #define GDB_FR_FPR5             ((GDB_FR_FPR4) + 4)             /* 43 */
  79 #define GDB_FR_FPR6             ((GDB_FR_FPR5) + 4)             /* 44 */
  80 #define GDB_FR_FPR7             ((GDB_FR_FPR6) + 4)             /* 45 */
  81 #define GDB_FR_FPR8             ((GDB_FR_FPR7) + 4)             /* 46 */
  82 #define GDB_FR_FPR9             ((GDB_FR_FPR8) + 4)             /* 47 */
  83 #define GDB_FR_FPR10            ((GDB_FR_FPR9) + 4)             /* 48 */
  84 #define GDB_FR_FPR11            ((GDB_FR_FPR10) + 4)            /* 49 */
  85 #define GDB_FR_FPR12            ((GDB_FR_FPR11) + 4)            /* 50 */
  86 #define GDB_FR_FPR13            ((GDB_FR_FPR12) + 4)            /* 51 */
  87 #define GDB_FR_FPR14            ((GDB_FR_FPR13) + 4)            /* 52 */
  88 #define GDB_FR_FPR15            ((GDB_FR_FPR14) + 4)            /* 53 */
  89 #define GDB_FR_FPR16            ((GDB_FR_FPR15) + 4)            /* 54 */
  90 #define GDB_FR_FPR17            ((GDB_FR_FPR16) + 4)            /* 55 */
  91 #define GDB_FR_FPR18            ((GDB_FR_FPR17) + 4)            /* 56 */
  92 #define GDB_FR_FPR19            ((GDB_FR_FPR18) + 4)            /* 57 */
  93 #define GDB_FR_FPR20            ((GDB_FR_FPR19) + 4)            /* 58 */
  94 #define GDB_FR_FPR21            ((GDB_FR_FPR20) + 4)            /* 59 */
  95 #define GDB_FR_FPR22            ((GDB_FR_FPR21) + 4)            /* 60 */
  96 #define GDB_FR_FPR23            ((GDB_FR_FPR22) + 4)            /* 61 */
  97 #define GDB_FR_FPR24            ((GDB_FR_FPR23) + 4)            /* 62 */
  98 #define GDB_FR_FPR25            ((GDB_FR_FPR24) + 4)            /* 63 */
  99 #define GDB_FR_FPR26            ((GDB_FR_FPR25) + 4)            /* 64 */
 100 #define GDB_FR_FPR27            ((GDB_FR_FPR26) + 4)            /* 65 */
 101 #define GDB_FR_FPR28            ((GDB_FR_FPR27) + 4)            /* 66 */
 102 #define GDB_FR_FPR29            ((GDB_FR_FPR28) + 4)            /* 67 */
 103 #define GDB_FR_FPR30            ((GDB_FR_FPR29) + 4)            /* 68 */
 104 #define GDB_FR_FPR31            ((GDB_FR_FPR30) + 4)            /* 69 */
 105 
 106 #define GDB_FR_FSR              ((GDB_FR_FPR31) + 4)            /* 70 */
 107 #define GDB_FR_FIR              ((GDB_FR_FSR) + 4)              /* 71 */
 108 #define GDB_FR_FRP              ((GDB_FR_FIR) + 4)              /* 72 */
 109 
 110 #define GDB_FR_DUMMY            ((GDB_FR_FRP) + 4)              /* 73, unused ??? */
 111 
 112 /*
 113  * Again, CP0 registers
 114  */
 115 #define GDB_FR_CP0_INDEX        ((GDB_FR_DUMMY) + 4)            /* 74 */
 116 #define GDB_FR_CP0_RANDOM       ((GDB_FR_CP0_INDEX) + 4)        /* 75 */
 117 #define GDB_FR_CP0_ENTRYLO0     ((GDB_FR_CP0_RANDOM) + 4)       /* 76 */
 118 #define GDB_FR_CP0_ENTRYLO1     ((GDB_FR_CP0_ENTRYLO0) + 4)     /* 77 */
 119 #define GDB_FR_CP0_REG4         ((GDB_FR_CP0_ENTRYLO1) + 4)     /* 78 */
 120 #define GDB_FR_CP0_PAGEMASK     ((GDB_FR_CP0_REG4) + 4)         /* 79 */
 121 #define GDB_FR_CP0_WIRED        ((GDB_FR_CP0_PAGEMASK) + 4)     /* 80 */
 122 #define GDB_FR_CP0_REG7         ((GDB_FR_CP0_WIRED) + 4)        /* 81 */
 123 #define GDB_FR_CP0_REG8         ((GDB_FR_CP0_REG7) + 4)         /* 82 */
 124 #define GDB_FR_CP0_REG9         ((GDB_FR_CP0_REG8) + 4)         /* 83 */
 125 #define GDB_FR_CP0_ENTRYHI      ((GDB_FR_CP0_REG9) + 4)         /* 84 */
 126 #define GDB_FR_CP0_REG11        ((GDB_FR_CP0_ENTRYHI) + 4)      /* 85 */
 127 #define GDB_FR_CP0_REG12        ((GDB_FR_CP0_REG11) + 4)        /* 86 */
 128 #define GDB_FR_CP0_REG13        ((GDB_FR_CP0_REG12) + 4)        /* 87 */
 129 #define GDB_FR_CP0_REG14        ((GDB_FR_CP0_REG13) + 4)        /* 88 */
 130 #define GDB_FR_CP0_PRID         ((GDB_FR_CP0_REG14) + 4)        /* 89 */
 131 
 132 #define GDB_FR_SIZE             ((((GDB_FR_CP0_PRID) + 4) + (PTRSIZE-1)) & ~(PTRSIZE-1))
 133 
 134 #ifndef __LANGUAGE_ASSEMBLY__
 135 
 136 /*
 137  * This is the same as above, but for the high-level
 138  * part of the GDB stub.
 139  */
 140 
 141 struct gdb_regs {
 142         /*
 143          * Pad bytes for argument save space on the stack
 144          * 20/40 Bytes for 32/64 bit code
 145          */
 146         unsigned long pad0[5];
 147 
 148         /*
 149          * saved main processor registers
 150          */
 151         long     reg0,  reg1,  reg2,  reg3,  reg4,  reg5,  reg6,  reg7;
 152         long     reg8,  reg9, reg10, reg11, reg12, reg13, reg14, reg15;
 153         long    reg16, reg17, reg18, reg19, reg20, reg21, reg22, reg23;
 154         long    reg24, reg25, reg26, reg27, reg28, reg29, reg30, reg31;
 155 
 156         /*
 157          * Saved special registers
 158          */
 159         long    cp0_status;
 160         long    lo;
 161         long    hi;
 162         long    cp0_badvaddr;
 163         long    cp0_cause;
 164         long    cp0_epc;
 165 
 166         /*
 167          * Saved floating point registers
 168          */
 169         long    fpr0,  fpr1,  fpr2,  fpr3,  fpr4,  fpr5,  fpr6,  fpr7;
 170         long    fpr8,  fpr9,  fpr10, fpr11, fpr12, fpr13, fpr14, fpr15;
 171         long    fpr16, fpr17, fpr18, fpr19, fpr20, fpr21, fpr22, fpr23;
 172         long    fpr24, fpr25, fpr26, fpr27, fpr28, fpr29, fpr30, fpr31;
 173 
 174         long    cp1_fsr;
 175         long    cp1_fir;
 176 
 177         /*
 178          * Frame pointer
 179          */
 180         long    frame_ptr;
 181         long    dummy;          /* unused */
 182         
 183         /*
 184          * saved cp0 registers
 185          */
 186         long    cp0_index;
 187         long    cp0_random;
 188         long    cp0_entrylo0;
 189         long    cp0_entrylo1;
 190         long    cp0_reg4;
 191         long    cp0_pagemask;
 192         long    cp0_wired;
 193         long    cp0_reg7;
 194         long    cp0_reg8;
 195         long    cp0_reg9;
 196         long    cp0_entryhi;
 197         long    cp0_reg11;
 198         long    cp0_reg12;
 199         long    cp0_reg13;
 200         long    cp0_reg14;
 201         long    cp0_prid;
 202 };
 203 
 204 /*
 205  * Prototypes
 206  */
 207 
 208 void set_debug_traps(void);
 209 
 210 #endif /* __LANGUAGE_ASSEMBLY */
 211 #endif /* __ASM_MIPS_GDB_STUB_H */
/* */
root/include/asm-mips/gdb-stub.h

INCLUDED FROM
