ELF format now supports 32-bit. Added ability to add instructions to a respective architecture that stores the op code.

2025-04-09 21:51:44 -07:00
parent 1ba2e97943
commit ee8e4d37ff
21 changed files with 475 additions and 76 deletions
--- a/include/arctyx/linker/formats/ELF.h
+++ b/include/arctyx/linker/formats/ELF.h
@@ -0,0 +1,93 @@
+#pragma once
+
+#include "ELF_Architecture.h"
+#include "ELF_Section.h"
+#include "ELF_Program.h"
+
+#include <ehs/Serializer.h>
+
+/// OS' ABI Types.
+#define ELFH_ABI_SYSTEMV 0x00
+
+/// ELF Binary Types.
+#define ELFH_TYPE_EXEC 0x02
+#define ELFH_TYPE_DYN 0x03
+
+/// True header sizes.
+#define ELF_64_BIT_HEADER_SIZE 64
+#define ELF_32_BIT_HEADER_SIZE 52
+
+class ELF
+{
+private:
+	ehs::UInt_8 bitDepth;
+	ehs::UInt_8 endianness;
+	ehs::UInt_8 abi;
+	ehs::UInt_16 type;
+	ehs::UInt_16 arch;
+	ehs::UInt_16 entryPoint;
+	ehs::Vector<ELF_Program, ehs::UInt_16> programs;
+	ehs::Vector<ELF_Section, ehs::UInt_16> sections;
+
+public:
+	ELF();
+
+	ELF(const ehs::UInt_8 &bitDepth, const ehs::UInt_8 &end, const ehs::UInt_8 &abi, const ehs::UInt_16 &type, const ehs::UInt_16 &arch);
+
+	ELF(ehs::Serializer<ehs::UInt_64>& data);
+
+	ELF(ELF&& header) noexcept;
+
+	ELF(const ELF& header);
+
+	ELF& operator=(ELF&& header) noexcept;
+
+	ELF& operator=(const ELF& header);
+
+	ehs::UInt_8 GetBitDepth() const;
+
+	ehs::UInt_8 GetEndianness() const;
+
+	ehs::UInt_8 GetABI() const;
+
+	ehs::UInt_16 GetType() const;
+
+	ehs::UInt_16 GetArchitecture() const;
+
+	void SetEntryPoint(ehs::UInt_16 programIndex);
+
+	ELF_Program* GetEntryPoint() const;
+
+	void AddProgram(ELF_Program newProgram);
+
+	bool HasSection(ehs::UInt_64 hashId);
+
+	bool HasSection(ehs::Str_8& id);
+
+	void AddSection(ELF_Section newSection);
+
+	ELF_Section* GetSection(ehs::UInt_64 sectionHashId) const;
+
+	ELF_Section* GetSection(const ehs::Str_8& sectionId) const;
+
+	ehs::UInt_64 GetLastSegmentOffset() const;
+
+	ehs::Vec2_u64 SegmentRange(ehs::UInt_64 sectionHashId);
+
+	ehs::Vec2_u64 SegmentRange(const ehs::Str_8& sectionId);
+
+	ehs::Serializer<ehs::UInt_64> Serialize() const;
+
+private:
+	void Serialize_64(ehs::Serializer<ehs::UInt_64> &data) const;
+
+	void Serialize_32(ehs::Serializer<ehs::UInt_64> &data) const;
+
+	void InitializeSections();
+
+	ehs::UInt_64 RetrieveSectionsOffset() const;
+
+	ehs::UInt_16 FindShStrTabIndex() const;
+
+	ELF_Section* FindShStrTab() const;
+};