//---
//	fxBoot:hypervisor:loader:entry - ELF Loader entry
//---
#include "fxBoot/hypervisor.h"
#include "fxBoot/terminal.h"
#include "fxBoot/fs/smemfs.h"
#include "fxBoot/elf.h"

/* internal header */
#include "../src/hypervisor/internal/elf.h"

/* loader_entry(): Load a ELF programm (PIE) */
int hypervisor_elf_loader(struct hworld *world, struct smemfs_inode *inode)
{
	Elf32_Ehdr header;
	int err;

	if (world == NULL)
		return (-1);

	/* save private information */
	terminal_write("- load ELF file \"%s\"\n", inode->name);
	world->private.inode = inode;

	/* Try to get the ELF header information */
	terminal_write("- check header information\n");
	err = hypervisor_elf_loader_header_get(inode, &header);
	if (err != 0)
		return (-2);

	/* Get / Check program validity */
	terminal_write("- load image\n");
	err = hypervisor_elf_loader_image_load(world, inode, &header);
	if (err != 0)
		return (-3);

	/* Relocalise sections / symbols */
	terminal_write("- relocalize symbols\n");
	err = hypervisor_elf_loader_reloc_sym(world, inode, &header);
	if (err != 0)
		return (-4);
	return (0);
}