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/*

 * Definitions for Executable Linking Format

 * Based on Portable Formats Specification v1.1

 *

 * Copyright (C) 2008 Bahadir Balban

 */

#ifndef __ELF_H__

#define __ELF_H__

#include <l4/types.h>

/* ELF identification indices */

#define EI_MAG0         0

#define EI_MAG1         1

#define EI_MAG2         2

#define EI_MAG3         3

#define EI_CLASS        4

#define EI_DATA         5

#define EI_VERSION      6

#define EI_PAD          7

/* Size of ELF identification field */

#define EI_NIDENT       16

/* Values for ELF identification fields */

#define ELFMAG0         0x7f

#define ELFMAG1         'E'

#define ELFMAG2         'L'

#define ELFMAG3         'F'

/* Values for the ELF Class field */

#define ELFCLASSNONE    0

#define ELFCLASS32      1

#define ELFCLASS64      2

/* Values for the ELF Data field */

#define ELFDATANONE     0

#define ELFDATA2LSB     1

#define ELFDATA2MSB     2

struct elf_header {

        u8      e_ident[EI_NIDENT];     /* ELF identification */

        u16     e_type;                 /* Object file type */

        u16     e_machine;              /* Machine architecture */

        u32     e_version;              /* Object file version */

        u32     e_entry;                /* Virtual entry address */

        u32     e_phoff;                /* Program header offset */

        u32     e_shoff;                /* Section header offset */

        u32     e_flags;                /* Processor specific flags */

        u16     e_ehsize;               /* ELF header size */

        u16     e_phentsize;            /* Program header entry size */

        u16     e_phnum;                /* Number of program headers */

        u16     e_shentsize;            /* Section header entry size */

        u16     e_shnum;                /* Number of section headers */

        u16     e_shstrndx;             /* Shtable index for strings */

} __attribute__((__packed__));

int elf_parse_executable(struct tcb *task, struct vm_file *file,

                         struct exec_file_desc *efd);

#endif /* __ELF_H__ */