// reloc.cc -- relocate input files for gold.
-// Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+// Copyright (C) 2006-2014 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// section data to the output file. The second one applies
// relocations.
- this->write_sections(pshdrs, of, &views);
+ this->write_sections(layout, pshdrs, of, &views);
// To speed up relocations, we set up hash tables for fast lookup of
// input offsets to output addresses.
{
if (views[i].view != NULL)
{
+ if (views[i].is_ctors_reverse_view)
+ this->reverse_words(views[i].view, views[i].view_size);
if (!views[i].is_postprocessing_view)
{
if (views[i].is_input_output_view)
template<int size, bool big_endian>
void
-Sized_relobj_file<size, big_endian>::write_sections(const unsigned char* pshdrs,
+Sized_relobj_file<size, big_endian>::write_sections(const Layout* layout,
+ const unsigned char* pshdrs,
Output_file* of,
Views* pviews)
{
pvs->address = posd->address();
pvs->is_input_output_view = false;
pvs->is_postprocessing_view = false;
+ pvs->is_ctors_reverse_view = false;
continue;
}
pvs->view_size = view_size;
pvs->is_input_output_view = output_offset == invalid_address;
pvs->is_postprocessing_view = os->requires_postprocessing();
+ pvs->is_ctors_reverse_view =
+ (!parameters->options().relocatable()
+ && view_size > size / 8
+ && (strcmp(os->name(), ".init_array") == 0
+ || strcmp(os->name(), ".fini_array") == 0)
+ && layout->is_ctors_in_init_array(this, i));
}
// Actually read the data.
output_offset == invalid_address,
view, address, view_size, reloc_map);
if (parameters->options().emit_relocs())
- this->emit_relocs(&relinfo, i, sh_type, prelocs, reloc_count,
- os, output_offset, view, address, view_size,
- (*pviews)[i].view, (*pviews)[i].view_size);
+ {
+ Relocatable_relocs* rr = this->relocatable_relocs(i);
+ target->relocate_relocs(&relinfo, sh_type, prelocs, reloc_count,
+ os, output_offset, rr,
+ view, address, view_size,
+ (*pviews)[i].view,
+ (*pviews)[i].view_size);
+ }
if (parameters->incremental())
this->incremental_relocs_write(&relinfo, sh_type, prelocs,
reloc_count, os, output_offset, of);
else
{
Relocatable_relocs* rr = this->relocatable_relocs(i);
- target->relocate_for_relocatable(&relinfo, sh_type, prelocs,
- reloc_count, os, output_offset, rr,
- view, address, view_size,
- (*pviews)[i].view,
- (*pviews)[i].view_size);
+ target->relocate_relocs(&relinfo, sh_type, prelocs, reloc_count,
+ os, output_offset, rr,
+ view, address, view_size,
+ (*pviews)[i].view,
+ (*pviews)[i].view_size);
}
}
}
-// Emit the relocs for --emit-relocs.
-
-template<int size, bool big_endian>
-void
-Sized_relobj_file<size, big_endian>::emit_relocs(
- const Relocate_info<size, big_endian>* relinfo,
- unsigned int i,
- unsigned int sh_type,
- const unsigned char* prelocs,
- size_t reloc_count,
- Output_section* output_section,
- typename elfcpp::Elf_types<size>::Elf_Addr offset_in_output_section,
- unsigned char* view,
- typename elfcpp::Elf_types<size>::Elf_Addr address,
- section_size_type view_size,
- unsigned char* reloc_view,
- section_size_type reloc_view_size)
-{
- if (sh_type == elfcpp::SHT_REL)
- this->emit_relocs_reltype<elfcpp::SHT_REL>(relinfo, i, prelocs,
- reloc_count, output_section,
- offset_in_output_section,
- view, address, view_size,
- reloc_view, reloc_view_size);
- else
- {
- gold_assert(sh_type == elfcpp::SHT_RELA);
- this->emit_relocs_reltype<elfcpp::SHT_RELA>(relinfo, i, prelocs,
- reloc_count, output_section,
- offset_in_output_section,
- view, address, view_size,
- reloc_view, reloc_view_size);
- }
-}
-
-// Emit the relocs for --emit-relocs, templatized on the type of the
-// relocation section.
-
-template<int size, bool big_endian>
-template<int sh_type>
-void
-Sized_relobj_file<size, big_endian>::emit_relocs_reltype(
- const Relocate_info<size, big_endian>* relinfo,
- unsigned int i,
- const unsigned char* prelocs,
- size_t reloc_count,
- Output_section* output_section,
- typename elfcpp::Elf_types<size>::Elf_Addr offset_in_output_section,
- unsigned char* view,
- typename elfcpp::Elf_types<size>::Elf_Addr address,
- section_size_type view_size,
- unsigned char* reloc_view,
- section_size_type reloc_view_size)
-{
- const Relocatable_relocs* rr = this->relocatable_relocs(i);
- relocate_for_relocatable<size, big_endian, sh_type>(
- relinfo,
- prelocs,
- reloc_count,
- output_section,
- offset_in_output_section,
- rr,
- view,
- address,
- view_size,
- reloc_view,
- reloc_view_size);
-}
-
// Write the incremental relocs.
template<int size, bool big_endian>
}
}
+// Reverse the words in a section. Used for .ctors sections mapped to
+// .init_array sections. See ctors_sections_in_init_array in
+// layout.cc.
+
+template<int size, bool big_endian>
+void
+Sized_relobj_file<size, big_endian>::reverse_words(unsigned char* view,
+ section_size_type view_size)
+{
+ typedef typename elfcpp::Swap<size, big_endian>::Valtype Valtype;
+ Valtype* vview = reinterpret_cast<Valtype*>(view);
+ section_size_type vview_size = view_size / (size / 8);
+ for (section_size_type i = 0; i < vview_size / 2; ++i)
+ {
+ Valtype tmp = vview[i];
+ vview[i] = vview[vview_size - 1 - i];
+ vview[vview_size - 1 - i] = tmp;
+ }
+}
+
// Class Merged_symbol_value.
template<int size>
projects / deliverable / binutils-gdb.git / blobdiff