Luna/kernel/include/sys/elf/ELFLoader.h

#pragma once
#include "fs/VFS.h"
#include "sys/elf/Image.h"
#include <stdint.h>

namespace ELFLoader
{
    ELFImage* load_elf_from_vfs(VFS::Node* node); // This function assumes check_elf_image has been called first.
    ELFImage* load_elf_from_filesystem(const char* filename);
    void release_elf_image(ELFImage* image);
    long check_elf_image(VFS::Node* node);
    long check_elf_image_from_filesystem(const char* filename);
}
Add an ELF Loader!! 2022-10-01 12:15:56 +02:00			`#pragma once`
ELFLoader: Read the ELF file header by header using the VFS Instead of just allocating one big redundant blob of memory and reading into it, then having to free it... 2022-10-12 18:23:52 +02:00			`#include "fs/VFS.h"`
Implement an ELFImage struct This struct allows us to keep track of what memory is used by the loaded executable. For some reason, freeing this memory when the task exits triggers a kernel page fault, so I'm not doing that right now. 2022-10-07 17:54:05 +02:00			`#include "sys/elf/Image.h"`
Add an ELF Loader!! 2022-10-01 12:15:56 +02:00			`#include <stdint.h>`

			`namespace ELFLoader`
			`{`
ELFLoader: Add check_elf_image() and check_elf_image_from_filesystem() These two functions validate an image, without actually loading it. Very useful for exec! 2022-10-12 18:37:00 +02:00			`ELFImage* load_elf_from_vfs(VFS::Node* node); // This function assumes check_elf_image has been called first.`
ELFLoader, Scheduler: Transition to use VFS We should start to drop the old InitRD API, which only allows for files to be loaded from the initrd, and which forces pathnames to be relative (bin/init) With VFS, we can load any kind of file from any kind of filesystem, and using paths that make sense (/bin/init) 2022-10-11 19:33:48 +02:00			`ELFImage* load_elf_from_filesystem(const char* filename);`
Scheduler: Move ELF image freeing to ELFLoader 2022-10-12 17:08:17 +02:00			`void release_elf_image(ELFImage* image);`
ELFLoader: Make check_elf_image return how much memory the executable will use on success 2022-10-12 19:20:14 +02:00			`long check_elf_image(VFS::Node* node);`
			`long check_elf_image_from_filesystem(const char* filename);`
Add an ELF Loader!! 2022-10-01 12:15:56 +02:00			`}`