/* PPC64 specific symbolic name handling.
Copyright (C) 2004 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 2004.
This program is Open Source software; you can redistribute it and/or
modify it under the terms of the Open Software License version 1.0 as
published by the Open Source Initiative.
You should have received a copy of the Open Software License along
with this program; if not, you may obtain a copy of the Open Software
License version 1.0 from http://www.opensource.org/licenses/osl.php or
by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
3001 King Ranch Road, Ukiah, CA 95482. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <elf.h>
#include <stddef.h>
#include <libebl_ppc64.h>
/* Return of the backend. */
const char *
ppc64_backend_name (void)
{
return "ppc64";
}
/* Relocation mapping table. */
static struct
{
const char *name;
enum { both = 0, rel = 1, exec = 2 } appear;
} reloc_map_table[] =
{
// XXX Check all the appear values.
[R_PPC64_NONE] = { "R_PPC64_NONE", both },
[R_PPC64_ADDR32] = { "R_PPC64_ADDR32", both },
[R_PPC64_ADDR24] = { "R_PPC64_ADDR24", both },
[R_PPC64_ADDR16] = { "R_PPC64_ADDR16", both },
[R_PPC64_ADDR16_LO] = { "R_PPC64_ADDR16_LO", both },
[R_PPC64_ADDR16_HI] = { "R_PPC64_ADDR16_HI", both },
[R_PPC64_ADDR16_HA] = { "R_PPC64_ADDR16_HA", both },
[R_PPC64_ADDR14] = { "R_PPC64_ADDR14", both },
[R_PPC64_ADDR14_BRTAKEN] = { "R_PPC64_ADDR14_BRTAKEN", exec },
[R_PPC64_ADDR14_BRNTAKEN] = { "R_PPC64_ADDR14_BRNTAKEN", exec },
[R_PPC64_REL24] = { "R_PPC64_REL24", both },
[R_PPC64_REL14] = { "R_PPC64_REL14", both },
[R_PPC64_REL14_BRTAKEN] = { "R_PPC64_REL14_BRTAKEN", exec },
[R_PPC64_REL14_BRNTAKEN] = { "R_PPC64_REL14_BRNTAKEN", exec },
[R_PPC64_GOT16] = { "R_PPC64_GOT16", rel },
[R_PPC64_GOT16_LO] = { "R_PPC64_GOT16_LO", rel },
[R_PPC64_GOT16_HI] = { "R_PPC64_GOT16_HI", rel },
[R_PPC64_GOT16_HA] = { "R_PPC64_GOT16_HA", rel },
[R_PPC64_COPY] = { "R_PPC64_COPY", exec },
[R_PPC64_GLOB_DAT] = { "R_PPC64_GLOB_DAT", exec },
[R_PPC64_JMP_SLOT] = { "R_PPC64_JMP_SLOT", exec },
[R_PPC64_RELATIVE] = { "R_PPC64_RELATIVE", exec },
[R_PPC64_UADDR32] = { "R_PPC64_UADDR32", exec },
[R_PPC64_UADDR16] = { "R_PPC64_UADDR16", exec },
[R_PPC64_REL32] = { "R_PPC64_REL32", exec },
[R_PPC64_PLT32] = { "R_PPC64_PLT32", exec },
[R_PPC64_PLTREL32] = { "R_PPC64_PLTREL32", both },
[R_PPC64_PLT16_LO] = { "R_PPC64_PLT16_LO", both },
[R_PPC64_PLT16_HI] = { "R_PPC64_PLT16_HI", both },
[R_PPC64_PLT16_HA] = { "R_PPC64_PLT16_HA", both },
[R_PPC64_SECTOFF] = { "R_PPC64_SECTOFF", both },
[R_PPC64_SECTOFF_LO] = { "R_PPC64_SECTOFF_LO", both },
[R_PPC64_SECTOFF_HI] = { "R_PPC64_SECTOFF_HI", both },
[R_PPC64_SECTOFF_HA] = { "R_PPC64_SECTOFF_HA", both },
[R_PPC64_ADDR30] = { "R_PPC64_ADDR30", both },
[R_PPC64_ADDR64] = { "R_PPC64_ADDR64", both },
[R_PPC64_ADDR16_HIGHER] = { "R_PPC64_ADDR16_HIGHER", both },
[R_PPC64_ADDR16_HIGHERA] = { "R_PPC64_ADDR16_HIGHERA", both },
[R_PPC64_ADDR16_HIGHEST] = { "R_PPC64_ADDR16_HIGHEST", both },
[R_PPC64_ADDR16_HIGHESTA] = { "R_PPC64_ADDR16_HIGHESTA", both },
[R_PPC64_UADDR64] = { "R_PPC64_UADDR64", both },
[R_PPC64_REL64] = { "R_PPC64_REL64", both },
[R_PPC64_PLT64] = { "R_PPC64_PLT64", both },
[R_PPC64_PLTREL64] = { "R_PPC64_PLTREL64", both },
[R_PPC64_TOC16] = { "R_PPC64_TOC16", both },
[R_PPC64_TOC16_LO] = { "R_PPC64_TOC16_LO", both },
[R_PPC64_TOC16_HI] = { "R_PPC64_TOC16_HI", both },
[R_PPC64_TOC16_HA] = { "R_PPC64_TOC16_HA", both },
[R_PPC64_TOC] = { "R_PPC64_TOC", both },
[R_PPC64_PLTGOT16] = { "R_PPC64_PLTGOT16", both },
[R_PPC64_PLTGOT16_LO] = { "R_PPC64_PLTGOT16_LO", both },
[R_PPC64_PLTGOT16_HI] = { "R_PPC64_PLTGOT16_HI", both },
[R_PPC64_PLTGOT16_HA] = { "R_PPC64_PLTGOT16_HA", both },
[R_PPC64_ADDR16_DS] = { "R_PPC64_ADDR16_DS", both },
[R_PPC64_ADDR16_LO_DS] = { "R_PPC64_ADDR16_LO_DS", both },
[R_PPC64_GOT16_DS] = { "R_PPC64_GOT16_DS", both },
[R_PPC64_GOT16_LO_DS] = { "R_PPC64_GOT16_LO_DS", both },
[R_PPC64_PLT16_LO_DS] = { "R_PPC64_PLT16_LO_DS", both },
[R_PPC64_SECTOFF_DS] = { "R_PPC64_SECTOFF_DS", both },
[R_PPC64_SECTOFF_LO_DS] = { "R_PPC64_SECTOFF_LO_DS", both },
[R_PPC64_TOC16_DS] = { "R_PPC64_TOC16_DS", both },
[R_PPC64_TOC16_LO_DS] = { "R_PPC64_TOC16_LO_DS", both },
[R_PPC64_PLTGOT16_DS] = { "R_PPC64_PLTGOT16_DS", both },
[R_PPC64_PLTGOT16_LO_DS] = { "R_PPC64_PLTGOT16_LO_DS", both },
[R_PPC64_TLS] = { "R_PPC64_TLS", both },
[R_PPC64_DTPMOD64] = { "R_PPC64_DTPMOD64", both },
[R_PPC64_TPREL16] = { "R_PPC64_TPREL16", both },
[R_PPC64_TPREL16_LO] = { "R_PPC64_TPREL16_LO", both },
[R_PPC64_TPREL16_HI] = { "R_PPC64_TPREL16_HI", both },
[R_PPC64_TPREL16_HA] = { "R_PPC64_TPREL16_HA", both },
[R_PPC64_TPREL64] = { "R_PPC64_TPREL64", both },
[R_PPC64_DTPREL16] = { "R_PPC64_DTPREL16", both },
[R_PPC64_DTPREL16_LO] = { "R_PPC64_DTPREL16_LO", both },
[R_PPC64_DTPREL16_HI] = { "R_PPC64_DTPREL16_HI", both },
[R_PPC64_DTPREL16_HA] = { "R_PPC64_DTPREL16_HA", both },
[R_PPC64_DTPREL64] = { "R_PPC64_DTPREL64", both },
[R_PPC64_GOT_TLSGD16] = { "R_PPC64_GOT_TLSGD16", both },
[R_PPC64_GOT_TLSGD16_LO] = { "R_PPC64_GOT_TLSGD16_LO", both },
[R_PPC64_GOT_TLSGD16_HI] = { "R_PPC64_GOT_TLSGD16_HI", both },
[R_PPC64_GOT_TLSGD16_HA] = { "R_PPC64_GOT_TLSGD16_HA", both },
[R_PPC64_GOT_TLSLD16] = { "R_PPC64_GOT_TLSLD16", both },
[R_PPC64_GOT_TLSLD16_LO] = { "R_PPC64_GOT_TLSLD16_LO", both },
[R_PPC64_GOT_TLSLD16_HI] = { "R_PPC64_GOT_TLSLD16_HI", both },
[R_PPC64_GOT_TLSLD16_HA] = { "R_PPC64_GOT_TLSLD16_HA", both },
[R_PPC64_GOT_TPREL16_DS] = { "R_PPC64_GOT_TPREL16_DS", both },
[R_PPC64_GOT_TPREL16_LO_DS] = { "R_PPC64_GOT_TPREL16_LO_DS", both },
[R_PPC64_GOT_TPREL16_HI] = { "R_PPC64_GOT_TPREL16_HI", both },
[R_PPC64_GOT_TPREL16_HA] = { "R_PPC64_GOT_TPREL16_HA", both },
[R_PPC64_GOT_DTPREL16_DS] = { "R_PPC64_GOT_DTPREL16_DS", both },
[R_PPC64_GOT_DTPREL16_LO_DS] = { "R_PPC64_GOT_DTPREL16_LO_DS", both },
[R_PPC64_GOT_DTPREL16_HI] = { "R_PPC64_GOT_DTPREL16_HI", both },
[R_PPC64_GOT_DTPREL16_HA] = { "R_PPC64_GOT_DTPREL16_HA", both },
[R_PPC64_TPREL16_DS] = { "R_PPC64_TPREL16_DS", both },
[R_PPC64_TPREL16_LO_DS] = { "R_PPC64_TPREL16_LO_DS", both },
[R_PPC64_TPREL16_HIGHER] = { "R_PPC64_TPREL16_HIGHER", both },
[R_PPC64_TPREL16_HIGHERA] = { "R_PPC64_TPREL16_HIGHERA", both },
[R_PPC64_TPREL16_HIGHEST] = { "R_PPC64_TPREL16_HIGHEST", both },
[R_PPC64_TPREL16_HIGHESTA] = { "R_PPC64_TPREL16_HIGHESTA", both },
[R_PPC64_DTPREL16_DS] = { "R_PPC64_DTPREL16_DS", both },
[R_PPC64_DTPREL16_LO_DS] = { "R_PPC64_DTPREL16_LO_DS", both },
[R_PPC64_DTPREL16_HIGHER] = { "R_PPC64_DTPREL16_HIGHER", both },
[R_PPC64_DTPREL16_HIGHERA] = { "R_PPC64_DTPREL16_HIGHERA", both },
[R_PPC64_DTPREL16_HIGHEST] = { "R_PPC64_DTPREL16_HIGHEST", both },
[R_PPC64_DTPREL16_HIGHESTA] = { "R_PPC64_DTPREL16_HIGHESTA", both }
};
/* Determine relocation type string for PPC. */
const char *
ppc64_reloc_type_name (int type, char *buf, size_t len)
{
if (type < R_PPC64_NONE || type >= R_PPC64_NUM)
return NULL;
return reloc_map_table[type].name;
}
/* Check for correct relocation type. */
bool
ppc64_reloc_type_check (int type)
{
return (type >= R_PPC64_NONE && type < R_PPC64_NUM
&& reloc_map_table[type].name != NULL) ? true : false;
}
/* Check for correct relocation type use. */
bool
ppc64_reloc_valid_use (Elf *elf, int type)
{
if (type < R_PPC64_NONE || type >= R_PPC64_NUM
|| reloc_map_table[type].name == NULL)
return false;
Elf64_Ehdr *ehdr = elf64_getehdr (elf);
assert (ehdr != NULL);
if (reloc_map_table[type].appear == rel)
return ehdr->e_type == ET_REL;
if (reloc_map_table[type].appear == exec)
return ehdr->e_type != ET_REL;
assert (reloc_map_table[type].appear == both);
return true;
}
const char *
ppc64_dynamic_tag_name (int64_t tag, char *buf, size_t len)
{
switch (tag)
{
case DT_PPC64_GLINK:
return "PPC64_GLINK";
case DT_PPC64_OPD:
return "PPC64_OPD";
case DT_PPC64_OPDSZ:
return "PPC64_OPDSZ";
default:
break;
}
return NULL;
}