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src/hotspot/cpu/s390/disassembler_s390.hpp
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rev 54960 : 8213084: Rework and enhance Print[Opto]Assembly output
Reviewed-by: kvn, thartmann
*** 1,8 ****
/*
* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
! * Copyright (c) 2016 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
--- 1,8 ----
/*
* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
! * Copyright (c) 2016, 2019 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*** 25,37 ****
#ifndef CPU_S390_DISASSEMBLER_S390_HPP
#define CPU_S390_DISASSEMBLER_S390_HPP
static int pd_instruction_alignment() {
! return 1;
}
static const char* pd_cpu_opts() {
! return "zarch";
}
#endif // CPU_S390_DISASSEMBLER_S390_HPP
--- 25,62 ----
#ifndef CPU_S390_DISASSEMBLER_S390_HPP
#define CPU_S390_DISASSEMBLER_S390_HPP
static int pd_instruction_alignment() {
! return 2;
}
static const char* pd_cpu_opts() {
! return "s390";
}
+ static bool valid_opcodes[256];
+ static bool is_valid_opcode_at(address here);
+
+ // Find preceding instruction.
+ //
+ // Starting at the passed location, the n-th preceding (towards lower addresses)
+ // location is searched, the contents of which - if interpreted as
+ // instructions - has the passed location as n-th successor.
+ // - If multiple such locations exist between (here-n*instr_maxlen()) and here,
+ // the most distant location is selected.
+ // - If no such location exists, NULL is returned. The caller should then
+ // terminate its search and react properly.
+ static address find_prev_instr(address here, int n_instr);
+ static int count_instr(address begin, address end);
+
+ // special-case instruction decoding.
+ // There may be cases where the binutils disassembler doesn't do
+ // the perfect job. In those cases, decode_instruction0 may kick in
+ // and do it right.
+ // If nothing had to be done, just return "here", otherwise return "here + instr_len(here)"
+ static address decode_instruction0(address here, outputStream* st, address virtual_begin = NULL);
+
+ // platform-specific instruction annotations (like value of loaded constants)
+ static void annotate(address pc, outputStream* st);
+
#endif // CPU_S390_DISASSEMBLER_S390_HPP
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