FreeChainXenon/binutils-gdb
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* compressed_output.cc (zlib_decompress): New function.

Browse source 
(get_uncompressed_size): New function.
	(decompress_input_section): New function.
	* compressed_output.h (get_uncompressed_size): New function.
	(decompress_input_section): New function.
	* dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info)
	Handle compressed debug sections.
	* layout.cc (is_compressed_debug_section): New function.
	(Layout::output_section_name): Map compressed section names to
	canonical names.
	* layout.h (is_compressed_debug_section): New function.
	(is_debug_info_section): Recognize compressed debug sections.
	* merge.cc: Include compressed_output.h.
	(Output_merge_data::do_add_input_section): Handle compressed
	debug sections.
	(Output_merge_string::do_add_input_section): Handle compressed
	debug sections.
	* object.cc: Include compressed_output.h.
	(Sized_relobj::Sized_relobj): Initialize new data members.
	(build_compressed_section_map): New function.
	(Sized_relobj::do_read_symbols): Handle compressed debug sections.
	* object.h (Object::section_is_compressed): New method.
	(Object::do_section_is_compressed): New method.
	(Sized_relobj::Compressed_section_map): New type.
	(Sized_relobj::do_section_is_compressed): New method.
	(Sized_relobj::compressed_sections_): New data member.
	* output.cc (Output_section::add_input_section): Handle compressed
	debug sections.
	* reloc.cc: Include compressed_output.h.
	(Sized_relobj::write_sections): Handle compressed debug sections.
This commit is contained in:
Cary Coutant 2010-07-12 17:59:58 +00:00
parent add265ae41
commit a2e4736229
11 changed files with 358 additions and 17 deletions
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16
gold/dwarf_reader.cc
View file

@ -32,6 +32,7 @@
#include "reloc.h"
#include "dwarf_reader.h"
#include "int_encoding.h"
#include "compressed_output.h"
namespace gold {
@ -80,6 +81,21 @@ Sized_dwarf_line_info<size, big_endian>::Sized_dwarf_line_info(Object* object,
if (this->buffer_ == NULL)
return;
section_size_type uncompressed_size = 0;
unsigned char* uncompressed_data = NULL;
if (object->section_is_compressed(debug_shndx, &uncompressed_size))
{
uncompressed_data = new unsigned char[uncompressed_size];
if (!decompress_input_section(this->buffer_,
this->buffer_end_ - this->buffer_,
uncompressed_data,
uncompressed_size))
object->error(_("could not decompress section %s"),
object->section_name(debug_shndx).c_str());
this->buffer_ = uncompressed_data;
this->buffer_end_ = this->buffer_ + uncompressed_size;
}
// Find the relocation section for ".debug_line".
// We expect these for relobjs (.o's) but not dynobjs (.so's).
bool got_relocs = false;