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/*
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2019 SAP SE. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_COMPILER_ABSTRACTDISASSEMBLER_HPP
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#define SHARE_COMPILER_ABSTRACTDISASSEMBLER_HPP
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// AbstractDisassembler is the base class for
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// platform-specific Disassembler classes.
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#include "utilities/globalDefinitions.hpp"
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class AbstractDisassembler {
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private:
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// These are some general settings which control
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// abstract disassembly output.
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enum {
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// that many bytes are dumped in one line.
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abstract_instruction_bytes_per_line = 32,
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// instruction bytes are grouped in blocks of that many bytes.
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abstract_instruction_bytes_per_block = 2,
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// instructions have this default len.
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abstract_instruction_size_in_bytes = 1,
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// instructions have this maximum len.
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abstract_instruction_maxsize_in_bytes = 1
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};
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static bool _align_instr; // vertical alignment of instructions in abstract disassembly
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static bool _show_pc; // print the instruction address
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static bool _show_offset; // print the instruction offset (from start of blob)
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static bool _show_bytes; // print instruction bytes
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static bool _show_data_hex; // print instruction bytes
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static bool _show_data_int; // print instruction bytes
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static bool _show_data_float; // print instruction bytes
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static bool _show_structs; // print compiler data structures (relocations, oop maps, scopes, metadata, ...)
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static bool _show_comment; // print instruction comments
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static bool _show_block_comment; // print block comments
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public:
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// Platform-independent location and instruction formatting.
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// All functions return #characters printed.
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static int print_location(address here, address begin, address end, outputStream* st, bool align, bool print_header);
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static int print_instruction(address here, int len, int max_len, outputStream* st, bool align, bool print_header);
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static int print_hexdata(address here, int len, outputStream* st, bool print_header = false);
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static int print_delimiter(outputStream* st);
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static bool start_newline(int byte_count) { return byte_count >= abstract_instruction_bytes_per_line; }
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static void toggle_align_instr() { _align_instr = !_align_instr; }
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static void toggle_show_pc() { _show_pc = !_show_pc; }
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static void toggle_show_offset() { _show_offset = !_show_offset; }
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static void toggle_show_bytes() { _show_bytes = !_show_bytes; }
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static void toggle_show_data_hex() { _show_data_hex = !_show_data_hex; }
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static void toggle_show_data_int() { _show_data_int = !_show_data_int; }
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static void toggle_show_data_float() { _show_data_float = !_show_data_float; }
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static void toggle_show_structs() { _show_structs = !_show_structs; }
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static void toggle_show_comment() { _show_comment = !_show_comment; }
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static void toggle_show_block_comment() { _show_block_comment = !_show_block_comment; }
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static bool align_instr() { return _align_instr; }
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static bool show_pc() { return _show_pc; }
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static bool show_offset() { return _show_offset; }
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static bool show_bytes() { return _show_bytes; }
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static bool show_data_hex() { return _show_data_hex; }
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static bool show_data_int() { return _show_data_int; }
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static bool show_data_float() { return _show_data_float; }
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static bool show_structs() { return _show_structs; }
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static bool show_comment() { return _show_comment; }
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static bool show_block_comment() { return _show_block_comment; }
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// Decodes the one instruction at address start in a platform-independent
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// format. Returns the start of the next instruction (which is
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// 'start' plus 'instruction_size_in_bytes'). The parameter max_instr_size_in_bytes
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// is used for output alignment purposes only.
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static address decode_instruction_abstract(address start,
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outputStream* st,
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const int instruction_size_in_bytes,
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const int max_instr_size_in_bytes = abstract_instruction_maxsize_in_bytes);
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// Decodes all instructions in the given range [start..end)
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// calling decode_instruction_abstract for each instruction.
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// The format is platform dependent only to the extend that
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// it respects the actual instruction length where possible.
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// Does not print any markers or decorators.
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static void decode_range_abstract(address range_start, address range_end,
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address start, address end,
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outputStream* st,
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const int max_instr_size_in_bytes = abstract_instruction_maxsize_in_bytes);
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// Decodes all instructions in the given range in a platform-independent
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// format, calling decode_instruction_abstract for each instruction.
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static void decode_abstract(address start, address end,
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outputStream* st,
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const int max_instr_size_in_bytes = abstract_instruction_maxsize_in_bytes);
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};
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#endif // SHARE_COMPILER_ABSTRACTDISASSEMBLER_HPP
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