rtl-elf.c File Reference

RTEMS Run-Time Link Editor. More...

#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <rtems/rtl/rtl.h>
#include "rtl-elf.h"
#include "rtl-error.h"
#include <rtems/rtl/rtl-trace.h>
#include "rtl-trampoline.h"
#include "rtl-unwind.h"
#include <rtems/rtl/rtl-unresolved.h>

Data Structures
struct	rtems_rtl_elf_reloc_data
struct	rtems_rtl_elf_common_data
struct	rtems_rtl_tramp_data

Macros
#define	REL_R_OFFSET   (0)
#define	REL_R_INFO   (1)
#define	REL_R_ADDEND   (2)
#define	SEPARATED_PREFIX(_p)   { _p, sizeof (_p) - 1 }

Typedefs
typedef bool(*	rtems_rtl_elf_reloc_handler) (rtems_rtl_obj *obj, bool is_rela, void *relbuf, rtems_rtl_obj_sect *targetsect, rtems_rtl_obj_sym *symbol, Elf_Sym *sym, const char *symname, Elf_Word symvalue, bool resolved, void *data)
typedef struct rtems_rtl_tramp_data	rtems_rtl_tramp_data

Functions
bool	rtems_rtl_obj_relocate_unresolved (rtems_rtl_unresolv_reloc *reloc, rtems_rtl_obj_sym *sym)
bool	rtems_rtl_elf_file_check (rtems_rtl_obj *obj, int fd)
bool	rtems_rtl_elf_file_load (rtems_rtl_obj *obj, int fd)
bool	rtems_rtl_elf_file_unload (rtems_rtl_obj *obj)
rtems_rtl_loader_format *	rtems_rtl_elf_file_sig (void)

Detailed Description

RTEMS Run-Time Link Editor.

This is the RTL implementation.

Macro Definition Documentation

REL_R_OFFSET

#define REL_R_OFFSET   (0)

The offsets in the reloc words.

Typedef Documentation

rtems_rtl_elf_reloc_handler

typedef bool(* rtems_rtl_elf_reloc_handler) (rtems_rtl_obj *obj, bool is_rela, void *relbuf, rtems_rtl_obj_sect *targetsect, rtems_rtl_obj_sym *symbol, Elf_Sym *sym, const char *symname, Elf_Word symvalue, bool resolved, void *data)

Relocation worker routine.

rtems_rtl_tramp_data

typedef struct rtems_rtl_tramp_data rtems_rtl_tramp_data

Struct to handle trampoline reloc recs in the unresolved table.

Function Documentation

rtems_rtl_elf_file_check()

bool rtems_rtl_elf_file_check	(	rtems_rtl_obj *	obj,
		int	fd
	)

The ELF format check handler.

Parameters

obj	The object being checked.
fd	The file descriptor.

rtems_rtl_elf_file_load()

bool rtems_rtl_elf_file_load	(	rtems_rtl_obj *	obj,
		int	fd
	)

The ELF format load handler.

Parameters

obj	The object to load.
fd	The file descriptor.

rtems_rtl_elf_file_sig()

rtems_rtl_loader_format* rtems_rtl_elf_file_sig

(

void

)

The ELF format signature handler.

Returns

rtems_rtl_loader_format* The format's signature.

rtems_rtl_elf_file_unload()

bool rtems_rtl_elf_file_unload

(

rtems_rtl_obj *

obj

)

The ELF format unload handler.

Parameters

obj	The object to unload.

rtems_rtl_obj_relocate_unresolved()

bool rtems_rtl_obj_relocate_unresolved	(	rtems_rtl_unresolv_reloc *	reloc,
		rtems_rtl_obj_sym *	sym
	)

Relocate an object file's unresolved reference.

Parameters

rec	The unresolved relocation record.
sym	The unresolved relocation's referenced symbol.

Return values

true	The object file record was relocated.
false	The relocation failed. The RTL error is set.