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7cecb28bdf
This fixes a problem I was having where using frame advance with the debugger open would frequently cause panic alerts about invalid addresses due to the CPU thread changing MSR.DR while the host thread was trying to access memory. To aid in tracking down all the places where we weren't properly locking the CPU, I've created a new type (in Core.h) that you have to pass as a reference or pointer to functions that require running as the CPU thread.
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "Common/CommonTypes.h"
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#include "Core/Boot/Boot.h"
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#include "Core/Boot/ElfTypes.h"
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namespace File
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{
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class IOFile;
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}
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enum KnownElfTypes
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{
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KNOWNELF_PSP = 0,
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KNOWNELF_DS = 1,
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KNOWNELF_GBA = 2,
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KNOWNELF_GC = 3,
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};
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typedef int SectionID;
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class ElfReader final : public BootExecutableReader
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{
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public:
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explicit ElfReader(const std::string& filename);
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explicit ElfReader(File::IOFile file);
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explicit ElfReader(std::vector<u8> buffer);
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~ElfReader();
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u32 Read32(int off) const { return base32[off >> 2]; }
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// Quick accessors
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ElfType GetType() const { return (ElfType)(header->e_type); }
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ElfMachine GetMachine() const { return (ElfMachine)(header->e_machine); }
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u32 GetEntryPoint() const override { return entryPoint; }
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u32 GetFlags() const { return (u32)(header->e_flags); }
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bool LoadIntoMemory(bool only_in_mem1 = false) const override;
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bool LoadSymbols(const Core::CPUThreadGuard& guard) const override;
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// TODO: actually check for validity.
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bool IsValid() const override { return true; }
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bool IsWii() const override;
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int GetNumSegments() const { return (int)(header->e_phnum); }
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int GetNumSections() const { return (int)(header->e_shnum); }
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const u8* GetPtr(int offset) const { return (u8*)base + offset; }
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const char* GetSectionName(int section) const;
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const u8* GetSectionDataPtr(int section) const
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{
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if (section < 0 || section >= header->e_shnum)
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return nullptr;
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if (sections[section].sh_type != SHT_NOBITS)
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return GetPtr(sections[section].sh_offset);
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else
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return nullptr;
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}
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bool IsCodeSegment(int segment) const { return segments[segment].p_flags & PF_X; }
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const u8* GetSegmentPtr(int segment) const { return GetPtr(segments[segment].p_offset); }
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int GetSegmentSize(int segment) const { return segments[segment].p_filesz; }
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u32 GetSectionAddr(SectionID section) const { return sectionAddrs[section]; }
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int GetSectionSize(SectionID section) const { return sections[section].sh_size; }
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SectionID GetSectionByName(const char* name, int firstSection = 0) const; //-1 for not found
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bool DidRelocate() const { return bRelocate; }
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private:
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void Initialize(u8* bytes);
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char* base;
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u32* base32;
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Elf32_Ehdr* header;
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Elf32_Phdr* segments;
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Elf32_Shdr* sections;
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u32* sectionAddrs;
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bool bRelocate;
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u32 entryPoint;
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};
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