mirror of
https://github.com/EnderIce2/Fennix.git
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EnderIce2
557c7e6235
This is the fourth time re-writing the VFS, hope this will be the last. Tried to make it as modular as possible so this won't be necessary in the future. 🙏
This change required the entire kernel code to be modified.
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __FENNIX_KERNEL_FILE_EXECUTE_H__
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#define __FENNIX_KERNEL_FILE_EXECUTE_H__
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#include <types.h>
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#include <fs/vfs.hpp>
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#include <task.hpp>
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#include <errno.h>
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#include <vector>
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#include <elf.h>
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namespace Execute
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{
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enum BinaryType : int
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{
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BinTypeInvalid,
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BinTypeELF,
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BinTypePE,
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BinTypeNE,
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BinTypeMZ,
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BinTypeMachO,
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BinTypeUnknown
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};
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class ELFObject
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{
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private:
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bool IsElfValid;
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const char **ELFargv;
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const char **ELFenvp;
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std::vector<AuxiliaryVector> Elfauxv;
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Tasking::IP ip;
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void *ELFProgramHeaders;
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void GenerateAuxiliaryVector(Memory::VirtualMemoryArea *vma,
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Node &fd, Elf_Ehdr ELFHeader,
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uintptr_t EntryPoint,
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uintptr_t BaseAddress);
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void LoadSegments(Node &fd, Tasking::PCB *TargetProcess, Elf_Ehdr &ELFHeader, uintptr_t &BaseAddress);
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void LoadExec(Node &fd, Tasking::PCB *TargetProcess);
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void LoadDyn(Node &fd, Tasking::PCB *TargetProcess);
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bool LoadInterpreter(Node &fd, Tasking::PCB *TargetProcess);
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public:
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decltype(IsElfValid) &IsValid = IsElfValid;
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decltype(ip) &InstructionPointer = ip;
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decltype(ELFargv) &argv = ELFargv;
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decltype(ELFenvp) &envp = ELFenvp;
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decltype(Elfauxv) &auxv = Elfauxv;
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ELFObject(std::string AbsolutePath,
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Tasking::PCB *TargetProcess,
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const char **argv,
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const char **envp);
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~ELFObject();
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};
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BinaryType GetBinaryType(Node &Path);
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BinaryType GetBinaryType(std::string Path);
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int Spawn(const char *Path, const char **argv, const char **envp,
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Tasking::PCB *Parent = nullptr, bool Fork = false,
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Tasking::TaskCompatibility Compatibility = Tasking::Native,
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bool Critical = false);
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bool ELFIs64(void *Header);
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Elf_Shdr *GetELFSheader(Elf_Ehdr *Header);
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Elf_Shdr *GetELFSection(Elf_Ehdr *Header, uintptr_t Index);
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char *GetELFStringTable(Elf_Ehdr *Header);
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char *ELFLookupString(Elf_Ehdr *Header, uintptr_t Offset);
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Elf_Sym *ELFLookupSymbol(Elf_Ehdr *Header, std::string Name);
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Elf_Sym ELFLookupSymbol(Node &fd, std::string Name);
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uintptr_t ELFGetSymbolValue(Elf_Ehdr *Header, uintptr_t Table, uintptr_t Index);
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std::vector<Elf_Phdr> ELFGetSymbolType(Node &fd, SegmentTypes Tag);
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std::vector<Elf_Shdr> ELFGetSections(Node &fd, std::string SectionName);
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std::vector<Elf_Dyn> ELFGetDynamicTag(Node &fd, DynamicArrayTags Tag);
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}
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#endif // !__FENNIX_KERNEL_FILE_EXECUTE_H__
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