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Merge remote-tracking branch 'Kernel/multiboot2_64' into Kernel-multiboot2_64

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EnderIce2
2024-11-20 05:17:14 +02:00
parent c4e458fcc6 1a3bdbb843
commit eb154e337a
291 changed files with 54773 additions and 0 deletions
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115
Kernel/Execute/Elf/SharedObjects.cpp Normal file
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#include <exec.hpp>
#include <memory.hpp>
#include <lock.hpp>
#include <msexec.h>
#include <cwalk.h>
#include <elf.h>
#include <abi.h>
#ifdef DEBUG
#include <dumper.hpp>
#endif
#include "../../kernel.h"
#include "../../Fex.hpp"
using namespace Tasking;
NewLock(ExecuteServiceLock);
namespace Execute
{
Memory::MemMgr *mem = nullptr;
Vector<SharedLibraries> Libs;
void StartExecuteService()
{
mem = new Memory::MemMgr;
// return;
while (true)
{
ExecuteServiceLock.Lock(__FUNCTION__);
foreach (auto &Lib in Libs)
{
if (Lib.RefCount > 0)
{
Lib.Timeout = TimeManager->CalculateTarget(600000);
debug("Reset timeout for %s", Lib.Identifier);
continue;
}
if (Lib.Timeout < TimeManager->GetCounter())
{
// TODO: Remove
fixme("Removed library %s because of timeout", Lib.Identifier);
}
else
debug("Timeout for %s is %ld", Lib.Identifier, Lib.Timeout);
}
debug("Waiting 10 seconds...");
ExecuteServiceLock.Unlock();
TaskManager->Sleep(10000);
}
}
SharedLibraries *AddLibrary(char *Identifier, void *ElfImage, size_t Length, const Memory::Virtual &pV)
{
SmartLock(ExecuteServiceLock);
SharedLibraries sl;
strcpy(sl.Identifier, Identifier);
sl.Timeout = TimeManager->CalculateTarget(600000); /* 10 minutes */
sl.RefCount = 0;
void *LibFile = mem->RequestPages(TO_PAGES(Length), true);
memcpy(LibFile, (void *)ElfImage, Length);
Memory::Virtual ncpV = pV;
sl.MemoryImage = ELFCreateMemoryImage(mem, ncpV, LibFile, Length);
{
uintptr_t BaseAddress = UINTPTR_MAX;
Elf64_Phdr ItrProgramHeader;
for (Elf64_Half i = 0; i < ((Elf64_Ehdr *)LibFile)->e_phnum; i++)
{
memcpy(&ItrProgramHeader, (uint8_t *)LibFile + ((Elf64_Ehdr *)LibFile)->e_phoff + ((Elf64_Ehdr *)LibFile)->e_phentsize * i, sizeof(Elf64_Phdr));
BaseAddress = MIN(BaseAddress, ItrProgramHeader.p_vaddr);
}
for (Elf64_Half i = 0; i < ((Elf64_Ehdr *)LibFile)->e_phnum; i++)
{
memcpy(&ItrProgramHeader, (uint8_t *)LibFile + ((Elf64_Ehdr *)LibFile)->e_phoff + ((Elf64_Ehdr *)LibFile)->e_phentsize * i, sizeof(Elf64_Phdr));
if (ItrProgramHeader.p_type != PT_LOAD)
continue;
debug("PT_LOAD - Offset: %#lx, VirtAddr: %#lx, FileSiz: %ld, MemSiz: %ld, Align: %#lx",
ItrProgramHeader.p_offset, ItrProgramHeader.p_vaddr,
ItrProgramHeader.p_filesz, ItrProgramHeader.p_memsz, ItrProgramHeader.p_align);
uintptr_t MAddr = (ItrProgramHeader.p_vaddr - BaseAddress) + (uintptr_t)sl.MemoryImage;
fixme("Address: %#lx %s%s%s", MAddr,
(ItrProgramHeader.p_flags & PF_R) ? "R" : "",
(ItrProgramHeader.p_flags & PF_W) ? "W" : "",
(ItrProgramHeader.p_flags & PF_X) ? "X" : "");
memcpy((void *)MAddr, (uint8_t *)LibFile + ItrProgramHeader.p_offset, ItrProgramHeader.p_filesz);
debug("memcpy: %#lx => %#lx (%ld bytes)", (uint8_t *)LibFile + ItrProgramHeader.p_offset, (uintptr_t)MAddr, ItrProgramHeader.p_filesz);
break;
}
}
sl.Address = LibFile;
sl.Length = Length;
debug("Library %s loaded at %#lx (full file: %#lx)", Identifier, sl.MemoryImage, LibFile);
Libs.push_back(sl);
return &Libs[Libs.size() - 1];
}
void SearchLibrary(char *Identifier)
{
SmartLock(ExecuteServiceLock);
}
}