rev 54763 : 8213084: Rework and enhance Print[Opto]Assembly output
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   1 /*
   2  * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2016, 2019 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_S390_DISASSEMBLER_S390_HPP
  27 #define CPU_S390_DISASSEMBLER_S390_HPP
  28 
  29   static int pd_instruction_alignment() {
  30     return 2;
  31   }
  32 
  33   static const char* pd_cpu_opts() {
  34     return "s390";
  35   }
  36 
  37   static bool valid_opcodes[256];
  38   static bool is_valid_opcode_at(address here);
  39 
  40   // Find preceding instruction.
  41   //
  42   // Starting at the passed location, the n-th preceding (towards lower addresses)
  43   // location is searched, the contents of which - if interpreted as
  44   // instructions - has the passed location as n-th successor.
  45   //  - If multiple such locations exist between (here-n*instr_maxlen()) and here,
  46   //    the most distant location is selected.
  47   //  - If no such location exists, NULL is returned. The caller should then
  48   //    terminate its search and react properly.
  49   static address find_prev_instr(address here, int n_instr);
  50   static int     count_instr(address begin, address end);
  51 
  52   // special-case instruction decoding.
  53   // There may be cases where the binutils disassembler doesn't do
  54   // the perfect job. In those cases, decode_instruction0 may kick in
  55   // and do it right.
  56   // If nothing had to be done, just return "here", otherwise return "here + instr_len(here)"
  57   static address decode_instruction0(address here, outputStream* st, address virtual_begin = NULL);
  58 
  59   // platform-specific instruction annotations (like value of loaded constants)
  60   static void annotate(address pc, outputStream* st);
  61 
  62 #endif // CPU_S390_DISASSEMBLER_S390_HPP
--- EOF ---