// target-reloc.h -- target specific relocation support -*- C++ -*-
+// Copyright 2006, 2007 Free Software Foundation, Inc.
+// Written by Ian Lance Taylor <iant@google.com>.
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
#ifndef GOLD_TARGET_RELOC_H
#define GOLD_TARGET_RELOC_H
#include "elfcpp.h"
-#include "object.h"
#include "symtab.h"
#include "reloc-types.h"
{
// This function implements the generic part of reloc scanning. This
-// is an inline function which takes a class whose operator()
-// implements the machine specific part of scanning. We do it this
-// way to avoidmaking a function call for each relocation, and to
-// avoid repeating the generic code for each target.
+// is an inline function which takes a class whose member functions
+// local() and global() implement the machine specific part of scanning.
+// We do it this way to avoidmaking a function call for each relocation,
+// and to avoid repeating the generic code for each target.
template<int size, bool big_endian, typename Target_type, int sh_type,
typename Scan>
Layout* layout,
Target_type* target,
Sized_relobj<size, big_endian>* object,
+ unsigned int data_shndx,
const unsigned char* prelocs,
size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
size_t local_count,
- const unsigned char* plocal_syms,
- Symbol** global_syms)
+ const unsigned char* plocal_syms)
{
typedef typename Reloc_types<sh_type, size, big_endian>::Reloc Reltype;
const int reloc_size = Reloc_types<sh_type, size, big_endian>::reloc_size;
{
Reltype reloc(prelocs);
+ if (needs_special_offset_handling
+ && !output_section->is_input_address_mapped(object, data_shndx,
+ reloc.get_r_offset()))
+ continue;
+
typename elfcpp::Elf_types<size>::Elf_WXword r_info = reloc.get_r_info();
unsigned int r_sym = elfcpp::elf_r_sym<size>(r_info);
unsigned int r_type = elfcpp::elf_r_type<size>(r_info);
if (r_sym < local_count)
{
- assert(plocal_syms != NULL);
+ gold_assert(plocal_syms != NULL);
typename elfcpp::Sym<size, big_endian> lsym(plocal_syms
+ r_sym * sym_size);
const unsigned int shndx = lsym.get_st_shndx();
continue;
}
- scan.local(options, symtab, layout, target, object, reloc, r_type,
- lsym);
+ scan.local(options, symtab, layout, target, object, data_shndx,
+ output_section, reloc, r_type, lsym);
}
else
{
- Symbol* gsym = global_syms[r_sym - local_count];
- assert(gsym != NULL);
+ Symbol* gsym = object->global_symbol(r_sym);
+ gold_assert(gsym != NULL);
if (gsym->is_forwarder())
gsym = symtab->resolve_forwards(gsym);
- scan.global(options, symtab, layout, target, object, reloc, r_type,
- gsym);
+ scan.global(options, symtab, layout, target, object, data_shndx,
+ output_section, reloc, r_type, gsym);
}
}
}
// This function implements the generic part of relocation processing.
-// This is an inline function which take a class whose operator()
+// This is an inline function which take a class whose relocate()
// implements the machine specific part of relocation. We do it this
// way to avoid making a function call for each relocation, and to
// avoid repeating the generic relocation handling code for each
// RELOCATE implements operator() to do a relocation.
// PRELOCS points to the relocation data. RELOC_COUNT is the number
-// of relocs. VIEW is the section data, VIEW_ADDRESS is its memory
-// address, and VIEW_SIZE is the size.
+// of relocs. OUTPUT_SECTION is the output section.
+// NEEDS_SPECIAL_OFFSET_HANDLING is true if input offsets need to be
+// mapped to output offsets.
+
+// VIEW is the section data, VIEW_ADDRESS is its memory address, and
+// VIEW_SIZE is the size. These refer to the input section, unless
+// NEEDS_SPECIAL_OFFSET_HANDLING is true, in which case they refer to
+// the output section.
template<int size, bool big_endian, typename Target_type, int sh_type,
typename Relocate>
Target_type* target,
const unsigned char* prelocs,
size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
unsigned char* view,
typename elfcpp::Elf_types<size>::Elf_Addr view_address,
- off_t view_size)
+ section_size_type view_size)
{
typedef typename Reloc_types<sh_type, size, big_endian>::Reloc Reltype;
const int reloc_size = Reloc_types<sh_type, size, big_endian>::reloc_size;
Relocate relocate;
- unsigned int local_count = relinfo->local_symbol_count;
- const typename Sized_relobj<size, big_endian>::Local_values* local_values =
- relinfo->local_values;
- const Symbol* const * global_syms = relinfo->symbols;
+ Sized_relobj<size, big_endian>* object = relinfo->object;
+ unsigned int local_count = object->local_symbol_count();
for (size_t i = 0; i < reloc_count; ++i, prelocs += reloc_size)
{
Reltype reloc(prelocs);
- off_t offset = reloc.get_r_offset();
+ section_offset_type offset =
+ convert_to_section_size_type(reloc.get_r_offset());
+
+ if (needs_special_offset_handling)
+ {
+ offset = output_section->output_offset(relinfo->object,
+ relinfo->data_shndx,
+ offset);
+ if (offset == -1)
+ continue;
+ }
typename elfcpp::Elf_types<size>::Elf_WXword r_info = reloc.get_r_info();
unsigned int r_sym = elfcpp::elf_r_sym<size>(r_info);
unsigned int r_type = elfcpp::elf_r_type<size>(r_info);
const Sized_symbol<size>* sym;
- typename elfcpp::Elf_types<size>::Elf_Addr value;
+ Symbol_value<size> symval;
+ const Symbol_value<size> *psymval;
if (r_sym < local_count)
{
sym = NULL;
- value = (*local_values)[r_sym];
+ psymval = object->local_symbol(r_sym);
}
else
{
- const Symbol* gsym = global_syms[r_sym - local_count];
- assert(gsym != NULL);
+ const Symbol* gsym = object->global_symbol(r_sym);
+ gold_assert(gsym != NULL);
if (gsym->is_forwarder())
gsym = relinfo->symtab->resolve_forwards(gsym);
sym = static_cast<const Sized_symbol<size>*>(gsym);
- value = sym->value();
+ if (sym->has_symtab_index())
+ symval.set_output_symtab_index(sym->symtab_index());
+ else
+ symval.set_no_output_symtab_entry();
+ symval.set_output_value(sym->value());
+ psymval = &symval;
}
- if (!relocate.relocate(relinfo, target, i, reloc, r_type, sym, value,
+ if (!relocate.relocate(relinfo, target, i, reloc, r_type, sym, psymval,
view + offset, view_address + offset, view_size))
continue;
- if (offset < 0 || offset >= view_size)
+ if (offset < 0 || static_cast<section_size_type>(offset) >= view_size)
{
- fprintf(stderr, _("%s: %s: reloc has bad offset %zu\n"),
- program_name, relinfo->location(i, offset).c_str(),
- static_cast<size_t>(offset));
- gold_exit(false);
+ gold_error_at_location(relinfo, i, offset,
+ _("reloc has bad offset %zu"),
+ static_cast<size_t>(offset));
+ continue;
}
if (sym != NULL
&& sym->is_undefined()
- && sym->binding() != elfcpp::STB_WEAK)
- {
- fprintf(stderr, _("%s: %s: undefined reference to '%s'\n"),
- program_name, relinfo->location(i, offset).c_str(),
- sym->name());
- // gold_exit(false);
- }
+ && sym->binding() != elfcpp::STB_WEAK
+ && !parameters->output_is_shared())
+ gold_undefined_symbol(sym, relinfo, i, offset);
if (sym != NULL && sym->has_warning())
- relinfo->symtab->issue_warning(sym, relinfo->location(i, offset));
+ relinfo->symtab->issue_warning(sym, relinfo, i, offset);
}
}
projects / deliverable / binutils-gdb.git / blobdiff