elf-loader.c File Reference

simple ELF interpreter More...

#include <assert.h>
#include <stdio.h>
#include <l4/sys/types.h>
#include <l4/sys/consts.h>
#include <l4/env/errno.h>
#include <l4/env/env.h>
#include <l4/dm_mem/dm_mem.h>
#include <l4/util/elf.h>
#include "app.h"
#include "dm-if.h"
#include "elf-loader.h"
#include "fprov-if.h"

Functions
static int	elf_map (app_t *app, l4_addr_t image, l4_addr_t base, l4_addr_t *entry, l4_uint32_t *save_phnum, l4_addr_t *save_phdr, int load_hdrs)
int	elf_map_binary (app_t *app)
	Load program sections of binary which must be interpreted by libld-l4.s.so.
int	elf_map_ldso (app_t *app, l4_addr_t app_addr)
	Load the libld-l4.s.so interpreter.
int	elf_check_ftype (const l4_addr_t img, const l4_size_t size, const l4env_infopage_t *env)
Variables
const char *const	interp = "libld-l4.s.so"

---

Detailed Description

simple ELF interpreter

Date:

05/10/2005

Author:

Frank Mehnert <fm3@os.inf.tu-dresden.de>

---

Function Documentation

int elf_check_ftype	(	const l4_addr_t	img,
		const l4_size_t	size,
		const l4env_infopage_t *	env
	)

Parameters:

	img	Pointer to binary image in memory
	size	Size of image
	env	L4Env info page

Returns:

0 Image is ELF for given architecture -ELF_INTERPRETER Found an interpreter section.

-L4_EINVAL Invalid input data, or invalid interpreter detected -ELF_BADFORMAT Image is not ELF for given arch -ELF_CORRUPT Image is corrupt

static int elf_map	(	app_t *	app,
		l4_addr_t	image,
		l4_addr_t	base,
		l4_addr_t *	entry,
		l4_uint32_t *	save_phnum,
		l4_addr_t *	save_phdr,
		int	load_hdrs
	)			[static]

< all sections writable

int elf_map_binary

(

app_t *

app

)

Load program sections of binary which must be interpreted by libld-l4.s.so.

Parameters:

app

application

Returns:

0 if success

int elf_map_ldso	(	app_t *	app,
		l4_addr_t	app_addr
	)

Load the libld-l4.s.so interpreter.

Parameters:

	app	application
	app_addr	load address inside application

Returns:

0 on success