gdbsupport/ax.def

   1 /* Definition of agent opcode values.   -*- c -*-
   2    Copyright (C) 1998-2024 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 /* The actual values of the various bytecode operations.
  20
  21    Other independent implementations of the agent bytecode engine will
  22    rely on the exact values of these enums, and may not be recompiled
  23    when we change this table.  The numeric values should remain fixed
  24    whenever possible.  Thus, we assign them values explicitly here (to
  25    allow gaps to form safely), and the disassembly table in
  26    agentexpr.h behaves like an opcode map.  If you want to see them
  27    grouped logically, see doc/agentexpr.texi.
  28
  29    Each line is of the form:
  30
  31    DEFOP (name, size, data_size, consumed, produced, opcode)
  32
  33    NAME is the name of the operation.
  34    SIZE is the number of argument bytes that the operation takes from
  35    the bytecode stream.
  36    DATA_SIZE is the size of data operated on, in bits, for operations
  37    that care (ref and const).  It is zero otherwise.
  38    CONSUMED is the number of stack elements consumed.
  39    PRODUCED is the number of stack elements produced.
  40    OPCODE is the operation's encoding.  */
  41
  42 DEFOP (float, 0, 0, 0, 0, 0x01)
  43 DEFOP (add, 0, 0, 2, 1, 0x02)
  44 DEFOP (sub, 0, 0, 2, 1, 0x03)
  45 DEFOP (mul, 0, 0, 2, 1, 0x04)
  46 DEFOP (div_signed, 0, 0, 2, 1, 0x05)
  47 DEFOP (div_unsigned, 0, 0, 2, 1, 0x06)
  48 DEFOP (rem_signed, 0, 0, 2, 1, 0x07)
  49 DEFOP (rem_unsigned, 0, 0, 2, 1, 0x08)
  50 DEFOP (lsh, 0, 0, 2, 1, 0x09)
  51 DEFOP (rsh_signed, 0, 0, 2, 1, 0x0a)
  52 DEFOP (rsh_unsigned, 0, 0, 2, 1, 0x0b)
  53 DEFOP (trace, 0, 0, 2, 0, 0x0c)
  54 DEFOP (trace_quick, 1, 0, 1, 1, 0x0d)
  55 DEFOP (log_not, 0, 0, 1, 1, 0x0e)
  56 DEFOP (bit_and, 0, 0, 2, 1, 0x0f)
  57 DEFOP (bit_or, 0, 0, 2, 1, 0x10)
  58 DEFOP (bit_xor, 0, 0, 2, 1, 0x11)
  59 DEFOP (bit_not, 0, 0, 1, 1, 0x12)
  60 DEFOP (equal, 0, 0, 2, 1, 0x13)
  61 DEFOP (less_signed, 0, 0, 2, 1, 0x14)
  62 DEFOP (less_unsigned, 0, 0, 2, 1, 0x15)
  63 DEFOP (ext, 1, 0, 1, 1, 0x16)
  64 DEFOP (ref8, 0, 8, 1, 1, 0x17)
  65 DEFOP (ref16, 0, 16, 1, 1, 0x18)
  66 DEFOP (ref32, 0, 32, 1, 1, 0x19)
  67 DEFOP (ref64, 0, 64, 1, 1, 0x1a)
  68 DEFOP (ref_float, 0, 0, 1, 1, 0x1b)
  69 DEFOP (ref_double, 0, 0, 1, 1, 0x1c)
  70 DEFOP (ref_long_double, 0, 0, 1, 1, 0x1d)
  71 DEFOP (l_to_d, 0, 0, 1, 1, 0x1e)
  72 DEFOP (d_to_l, 0, 0, 1, 1, 0x1f)
  73 DEFOP (if_goto, 2, 0, 1, 0, 0x20)
  74 DEFOP (goto, 2, 0, 0, 0, 0x21)
  75 DEFOP (const8, 1, 8, 0, 1, 0x22)
  76 DEFOP (const16, 2, 16, 0, 1, 0x23)
  77 DEFOP (const32, 4, 32, 0, 1, 0x24)
  78 DEFOP (const64, 8, 64, 0, 1, 0x25)
  79 DEFOP (reg, 2, 0, 0, 1, 0x26)
  80 DEFOP (end, 0, 0, 0, 0, 0x27)
  81 DEFOP (dup, 0, 0, 1, 2, 0x28)
  82 DEFOP (pop, 0, 0, 1, 0, 0x29)
  83 DEFOP (zero_ext, 1, 0, 1, 1, 0x2a)
  84 DEFOP (swap, 0, 0, 2, 2, 0x2b)
  85 DEFOP (getv, 2, 0, 0, 1, 0x2c)
  86 DEFOP (setv, 2, 0, 1, 1, 0x2d)
  87 DEFOP (tracev, 2, 0, 0, 1, 0x2e)
  88 DEFOP (tracenz, 0, 0, 2, 0, 0x2f)
  89 DEFOP (trace16, 2, 0, 1, 1, 0x30)
  90 /* We need something here just to make the tables come out ok.  */
  91 DEFOP (invalid2, 0, 0, 0, 0, 0x31)
  92 /* The "consumed" number for pick is wrong, but there's no way to
  93    express the right thing.  */
  94 DEFOP (pick, 1, 0, 0, 1, 0x32)
  95 DEFOP (rot, 0, 0, 3, 3, 0x33)
  96 /* Both the argument and consumed numbers are dynamic for this one.  */
  97 DEFOP (printf, 0, 0, 0, 0, 0x34)