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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/jit/riscv64/disasm/Disasm-riscv64.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit/riscv64/disasm/Disasm-riscv64.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/js/src/jit/riscv64/disasm/Disasm-riscv64.h b/js/src/jit/riscv64/disasm/Disasm-riscv64.h new file mode 100644 index 0000000000..0548523f6b --- /dev/null +++ b/js/src/jit/riscv64/disasm/Disasm-riscv64.h @@ -0,0 +1,74 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + */ +// Copyright 2007-2008 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef jit_riscv64_disasm_Disasm_riscv64_h +#define jit_riscv64_disasm_Disasm_riscv64_h + +#include "mozilla/Assertions.h" +#include "mozilla/Types.h" + +#include <stdio.h> + +#include "jit/riscv64/constant/Constant-riscv64.h" +#include "jit/riscv64/constant/util-riscv64.h" +namespace js { +namespace jit { +namespace disasm { + +typedef unsigned char byte; + +// Interface and default implementation for converting addresses and +// register-numbers to text. The default implementation is machine +// specific. +class NameConverter { + public: + virtual ~NameConverter() {} + virtual const char* NameOfCPURegister(int reg) const; + virtual const char* NameOfByteCPURegister(int reg) const; + virtual const char* NameOfXMMRegister(int reg) const; + virtual const char* NameOfAddress(byte* addr) const; + virtual const char* NameOfConstant(byte* addr) const; + virtual const char* NameInCode(byte* addr) const; + + protected: + EmbeddedVector<char, 128> tmp_buffer_; +}; + +// A generic Disassembler interface +class Disassembler { + public: + // Caller deallocates converter. + explicit Disassembler(const NameConverter& converter); + + virtual ~Disassembler(); + + // Writes one disassembled instruction into 'buffer' (0-terminated). + // Returns the length of the disassembled machine instruction in bytes. + int InstructionDecode(V8Vector<char> buffer, uint8_t* instruction); + + // Returns -1 if instruction does not mark the beginning of a constant pool, + // or the number of entries in the constant pool beginning here. + int ConstantPoolSizeAt(byte* instruction); + + // Write disassembly into specified file 'f' using specified NameConverter + // (see constructor). + static void Disassemble(FILE* f, uint8_t* begin, uint8_t* end); + + private: + const NameConverter& converter_; + + // Disallow implicit constructors. + Disassembler() = delete; + Disassembler(const Disassembler&) = delete; + void operator=(const Disassembler&) = delete; +}; + +} // namespace disasm +} // namespace jit +} // namespace js + +#endif // jit_riscv64_disasm_Disasm_riscv64_h |