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src/hotspot/cpu/s390/disassembler_s390.hpp

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rev 54763 : 8213084: Rework and enhance Print[Opto]Assembly output
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*** 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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