reloc.c revision 199767f8919635c4928607450d9e0abb932109ce
/*-
* Copyright (c) 2008-2010 Rui Paulo <rpaulo@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
__FBSDID("$FreeBSD$");
#include <elf.h>
#include <efi.h>
#include <bootstrap.h>
#if defined(__aarch64__)
#define ElfW_Rel Elf64_Rela
#define ELFW_R_TYPE ELF64_R_TYPE
#define ELF_RELA
#define ELFW_R_TYPE ELF32_R_TYPE
#define ELFW_R_TYPE ELF64_R_TYPE
#else
#endif
#if defined(__aarch64__)
#define RELOC_TYPE_NONE R_AARCH64_NONE
#define RELOC_TYPE_NONE R_X86_64_NONE
#define RELOC_TYPE_RELATIVE R_X86_64_RELATIVE
#define RELOC_TYPE_NONE R_ARM_NONE
#define RELOC_TYPE_RELATIVE R_ARM_RELATIVE
#define RELOC_TYPE_NONE R_386_NONE
#define RELOC_TYPE_RELATIVE R_386_RELATIVE
#endif
/*
* A simple relocator for EFI binaries.
*/
{
unsigned long *newaddr;
/*
* Find the relocation address, its size and the relocation entry.
*/
relsz = 0;
relent = 0;
case DT_REL:
case DT_RELA:
break;
case DT_RELSZ:
case DT_RELASZ:
break;
case DT_RELENT:
case DT_RELAENT:
break;
default:
break;
}
}
/*
* Perform the actual relocation.
*/
case RELOC_TYPE_NONE:
/* No relocation needs be performed. */
break;
case RELOC_TYPE_RELATIVE:
/* Address relative to the base address. */
/* Add the addend when the ABI uses them */
#ifdef ELF_RELA
#endif
break;
default:
/* XXX: do we need other relocations ? */
break;
}
}
return (EFI_SUCCESS);
}