mirror of
https://github.com/revng/revng
synced 2026-06-21 14:07:57 +00:00
Ivan Krysak
ec90ac0083
This helper computes the architecture-specific base for PC-relative immediate originating from the given instruction.
104 lines
2.5 KiB
C++
104 lines
2.5 KiB
C++
#pragma once
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//
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// This file is distributed under the MIT License. See LICENSE.md for details.
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//
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#include <limits>
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#include <string>
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#include "revng/ADT/SortedVector.h"
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#include "revng/Model/VerifyHelper.h"
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#include "revng/Support/MetaAddress.h"
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#include "revng/Support/MetaAddress/YAMLTraits.h"
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#include "revng/Yield/TagType.h"
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namespace yield {
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using ByteContainer = llvm::SmallVector<uint8_t, 16>;
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}
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/* TUPLE-TREE-YAML
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name: Instruction
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type: struct
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fields:
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- name: Address
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doc: >
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Indicates the address of the first byte of the instruction.
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type: MetaAddress
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- name: RawBytes
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type: yield::ByteContainer
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- name: Disassembled
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type: string
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- name: Tags
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sequence:
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type: SortedVector
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elementType: Tag
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optional: true
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- name: OpcodeIdentifier
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type: string
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optional: true
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- name: Comment
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doc: >
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Contains any extra information deduced based on the disassembly of this
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instruction that could be relevant for the user.
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type: string
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optional: true
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- name: Error
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doc: >
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Contains any extra extra warning/error style information deduced based on
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the disassembly of this instruction that could be relevant for the user.
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type: string
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optional: true
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key:
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- Address
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TUPLE-TREE-YAML */
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#include "revng/Yield/Generated/Early/Instruction.h"
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namespace yield {
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class Instruction : public generated::Instruction {
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public:
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using generated::Instruction::Instruction;
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public:
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bool verify(model::VerifyHelper &VH) const;
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void dump() const debug_function;
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public:
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inline bool verify() const debug_function { return verify(false); }
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inline bool verify(bool Assert) const debug_function {
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model::VerifyHelper VH(Assert);
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return verify(VH);
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}
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public:
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inline MetaAddress getRelativeAddressBase() const {
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switch (Address().type()) {
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case MetaAddressType::Code_x86:
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case MetaAddressType::Code_x86_64:
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return Address() + RawBytes().size(); // Start of the next instruction.
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case MetaAddressType::Code_arm:
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return Address() + 8; // Two instructions later
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case MetaAddressType::Code_arm_thumb:
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return Address() + 4; // Two instructions later
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case MetaAddressType::Code_aarch64:
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case MetaAddressType::Code_systemz:
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case MetaAddressType::Code_mips:
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case MetaAddressType::Code_mipsel:
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return Address();
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default:
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revng_abort("Unsupported instruction.");
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}
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}
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};
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} // namespace yield
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#include "revng/Yield/Generated/Late/Instruction.h"
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