dwarfeval.c

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    OpAddr = 0x03,  /* 1 op, const addr */
    OpDeref = 0x06,
    OpConst1u = 0x08,   /* 1 op, 1 byte const */
    OpConst1s = 0x09,   /*  " signed */
    OpConst2u = 0x0A,   /* 1 op, 2 byte const  */
    OpConst2s = 0x0B,   /*  " signed */
    OpConst4u = 0x0C,   /* 1 op, 4 byte const */
    OpConst4s = 0x0D,   /*  " signed */
    OpConst8u = 0x0E,   /* 1 op, 8 byte const */
    OpConst8s = 0x0F,   /*  " signed */
    OpConstu = 0x10,    /* 1 op, LEB128 const */
    OpConsts = 0x11,    /*  " signed */
    OpDup = 0x12,
    OpDrop = 0x13,
    OpOver = 0x14,
    OpPick = 0x15,      /* 1 op, 1 byte stack index */
    OpSwap = 0x16,
    OpRot = 0x17,
    OpXderef = 0x18,
    OpAbs = 0x19,
    OpAnd = 0x1A,
    OpDiv = 0x1B,
    OpMinus = 0x1C,
    OpMod = 0x1D,
    OpMul = 0x1E,
    OpNeg = 0x1F,
    OpNot = 0x20,
    OpOr = 0x21,
    OpPlus = 0x22,
    OpPlusUconst = 0x23,    /* 1 op, ULEB128 addend */
    OpShl = 0x24,
    OpShr = 0x25,
    OpShra = 0x26,
    OpXor = 0x27,
    OpSkip = 0x2F,      /* 1 op, signed 2-byte constant */
    OpBra = 0x28,       /* 1 op, signed 2-byte constant */
    OpEq = 0x29,
    OpGe = 0x2A,
    OpGt = 0x2B,
    OpLe = 0x2C,
    OpLt = 0x2D,
    OpNe = 0x2E,
    OpLit0 = 0x30,
        /* OpLitN = OpLit0 + N for N = 0..31 */
    OpReg0 = 0x50,
        /* OpRegN = OpReg0 + N for N = 0..31 */
    OpBreg0 = 0x70, /* 1 op, signed LEB128 constant */
        /* OpBregN = OpBreg0 + N for N = 0..31 */
    OpRegx = 0x90,  /* 1 op, ULEB128 register */
    OpFbreg = 0x91, /* 1 op, SLEB128 offset */
    OpBregx = 0x92, /* 2 op, ULEB128 reg, SLEB128 off */
    OpPiece = 0x93, /* 1 op, ULEB128 size of piece */
    OpDerefSize = 0x94, /* 1-byte size of data retrieved */
    OpXderefSize = 0x95,    /* 1-byte size of data retrieved */
    OpNop = 0x96,
    /* next four new in Dwarf v3 */
    OpPushObjAddr = 0x97,
    OpCall2 = 0x98, /* 2-byte offset of DIE */
    OpCall4 = 0x99, /* 4-byte offset of DIE */
    OpCallRef = 0x9A,   /* 4- or 8- byte offset of DIE */
    /* 0xE0-0xFF reserved for user-specific */