`--disassemble`/`--cdis` parses input bytes as decimal, 0bbin, 0ooct, or
0xhex. While the hexadecimal digit form is most commonly used, requiring
a 0x prefix for each byte (`0x48 0x29 0xc3`) is cumbersome.
Tools like xxd -p and rz-asm use a plain hex dump form without the 0x
prefix or space separator. This patch adds --hex to disassemble such hex
bytes with optional whitespace.
```
% rz-asm -a x86 -b 64 -d 4829c34829c4
sub rbx, rax
sub rsp, rax
% llvm-mc -triple=x86_64 --cdis --hex --output-asm-variant=1 <<< 4829c34829c4
.text
sub rbx, rax
sub rsp, rax
```
Pull Request: https://github.com/llvm/llvm-project/pull/119992
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===- Disassembler.h - Text File Disassembler ----------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This class implements the disassembler of strings of bytes written in
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// hexadecimal, from standard input or from a file.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_MC_DISASSEMBLER_H
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#define LLVM_TOOLS_LLVM_MC_DISASSEMBLER_H
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#include <string>
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namespace llvm {
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class MemoryBuffer;
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class Target;
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class raw_ostream;
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class SourceMgr;
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class MCContext;
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class MCSubtargetInfo;
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class MCStreamer;
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class MCTargetOptions;
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class Disassembler {
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public:
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static int disassemble(const Target &T, const std::string &Triple,
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MCSubtargetInfo &STI, MCStreamer &Streamer,
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MemoryBuffer &Buffer, SourceMgr &SM, MCContext &Ctx,
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const MCTargetOptions &MCOptions, bool HexBytes);
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};
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} // namespace llvm
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#endif
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