elf.c File Reference

#include <common.h>
#include <string.h>
#include <tasks/elf.h>
#include <interrupts/isr.h>

Include dependency graph for elf.c:

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Data Structures
struct	elf_program_header_entry_t
	program header entries tell us how to load executables More...

Macros
#define	MAGIC_0   0x7F
	magic value expected at the beginning of an ELF file
#define	MAGIC_1   'E'
	magic value expected at the beginning of an ELF file
#define	MAGIC_2   'L'
	magic value expected at the beginning of an ELF file
#define	MAGIC_3   'F'
	magic value expected at the beginning of an ELF file
#define	VERSION   1
	only ELF version 1 is supported (the current version)

Enumerations
enum	elf_class { CLASS_32_BIT = 1, CLASS_64_BIT }
	32 or 64 bit
enum	elf_data { DATA_LITTLE_ENDIAN = 1, DATA_BIG_ENDIAN }
	little or big endian
enum	elf_type { TYPE_RELOCATABLE = 1, TYPE_EXECUTABLE, TYPE_SHARED, TYPE_CORE }
	object type
enum	elf_machine { MACHINE_X86 = 3 }
	targeted ISA, we are only interested in x86

Functions
static uint8_t	elf_check (elf_t *elf)
	Checks whether a pointer points to a valid ELF file for this OS. More...
void *	elf_load (elf_t *elf, page_directory_t *page_directory)
	Loads the segments of an ELF file into memory. More...
void	elf_unload (elf_t *elf, page_directory_t *page_directory)
	Frees the segments of an ELF file in memory. More...
task_pid_t	elf_create_task (elf_t *elf, size_t kernel_stack_len, size_t user_stack_len)
	Creates a user task running the code of an ELF file. More...
void	elf_destroy_task (task_pid_t pid)
	Destroys a user task running the code of an ELF file. More...