reloc_elf.c revision 199767f8919635c4928607450d9e0abb932109ce
/*-
* Copyright (c) 2003 Jake Burkholder.
* Copyright 1996-1998 John D. Polstra.
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* Copyright (c) 1998 Peter Wemm <peter@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 <stand.h>
#define FREEBSD_ELF
#include <link.h>
#include "bootstrap.h"
/*
* Apply a single intra-module relocation to the data. `relbase' is the
* target relocation base for the section (i.e. it corresponds to where
* r_offset == 0). `dataaddr' is the relocated address corresponding to
* the start of the data, and `len' is the number of bytes.
*/
int
{
#ifdef __sparc__
Elf_Size w;
const Elf_Rela *a;
switch (reltype) {
case ELF_RELOC_RELA:
a = reldata;
switch (ELF_R_TYPE(a->r_info)) {
case R_SPARC_RELATIVE:
break;
default:
printf("\nunhandled relocation type %u\n",
return (EFTYPE);
}
}
break;
}
return (0);
switch (reltype) {
case ELF_RELOC_REL:
dataaddr);
addend = 0;
addend = 0;
break;
case ELF_RELOC_RELA:
dataaddr);
break;
default:
return (EINVAL);
}
return (0);
if (reltype == ELF_RELOC_REL)
/* XXX, definitions not available on i386. */
#define R_X86_64_64 1
#define R_X86_64_RELATIVE 8
switch (rtype) {
case R_X86_64_64: /* S + A */
if (addr == 0)
return (ESRCH);
break;
case R_X86_64_RELATIVE:
break;
default:
return (EFTYPE);
}
return (0);
switch (reltype) {
case ELF_RELOC_REL:
dataaddr);
addend = 0;
addend = 0;
break;
case ELF_RELOC_RELA:
dataaddr);
break;
default:
return (EINVAL);
}
return (0);
if (reltype == ELF_RELOC_REL)
/* XXX, definitions not available on amd64. */
switch (rtype) {
case R_386_RELATIVE:
break;
case R_386_32: /* S + A */
if (addr == 0)
return (ESRCH);
break;
default:
return (EFTYPE);
}
return (0);
#elif defined(__powerpc__)
Elf_Size w;
switch (reltype) {
case ELF_RELOC_RELA:
case R_PPC_RELATIVE:
break;
default:
printf("\nunhandled relocation type %u\n",
return (EFTYPE);
}
}
break;
}
return (0);
#else
(void)ef;
(void)symaddr;
(void)reldata;
(void)reltype;
(void)relbase;
(void)dataaddr;
(void)data;
(void)len;
return (EOPNOTSUPP);
#endif
}