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Author SHA1 Message Date
Cary Coutant
e94cf12773 * layout.cc (Layout::include_section): Refactored check for debug 
info section.
	(Layout::add_comdat): Add new parameters.  Change type
	of signature parameter.  Add object and shndx to signatures table.
	(Layout::find_kept_object): New function.
	* layout.h: Include <cstring>.
	(Layout::is_debug_info_section): New function.
	(Layout::add_comdat): Add new parameters.
	(Layout::find_kept_object): New function.
	(Layout::Kept_section): New struct.
	(Layout::Signatures): Change type of map range.
	* object.cc (Relobj::output_section_address): New function.
	(Sized_relobj::include_section_group): Add new parameters.  Change
	calls to Layout::add_comdat.  Change to build table of kept comdat
	groups and table mapping discarded sections to kept sections.
	(Sized_relobj::include_linkonce_section): Likewise.  Add new parameter.
	(Sized_relobj::do_layout): Change calls to include_section_group and
	include_linkonce_section.
	(Sized_relobj::do_finalize_local_symbols): Do not set local symbol
	value to zero when section is discarded.
	(Sized_relobj::map_to_kept_section): New function.
	* object.h (Relobj::output_section_address): New function.
	(Relobj::Comdat_group): New type.
	(Relobj::find_comdat_group): New function.
	(Relobj::Comdat_group_table): New type.
	(Relobj::Kept_comdat_section): New type.
	(Relobj::Kept_comdat_section_table): New type.
	(Relobj::add_comdat_group): New function.
	(Relobj::set_kept_comdat_section): New function.
	(Relobj::get_kept_comdat_section): New function.
	(Relobj::comdat_groups_): New field.
	(Relobj::kept_comdat_sections_): New field.
	(Symbol_value::input_value): Update comment.
	(Sized_relobj::map_to_kept_section) New function.
	(Sized_relobj::include_linkonce_section): Add new parameter.
	* target-reloc.h (Comdat_behavior): New type.
	(get_comdat_behavior): New function.
	(relocate_section): Add code to map a discarded section to the
	corresponding kept section when applying a relocation.
 2008-05-01 01:23:21 +00:00
Ian Lance Taylor
d491d34e93 * object.cc (Xindex::initialize_symtab_xindex): New function. 
(Xindex::read_symtab_xindex): New function.
	(Xindex::sym_xindex_to_shndx): New function.
	(Sized_relobj::find_symtab): Pick up SHT_SYMTAB_SHNDX section if
	available.
	(Sized_relobj::do_initialize_xindex): New function.
	(Sized_relobj::do_read_symbols): Adjust section links.
	(Sized_relobj::symbol_section_and_value): Add is_ordinary
	parameter.  Change all callers.
	(Sized_relobj::include_section_group): Adjust section links and
	symbol section indexes.
	(Sized_relobj::do_layout): Adjust section links.
	(Sized_relobj::do_count_local_symbols): Adjust section links and
	symbol section indexes.
	(Sized_relobj::do_finalize_local_symbols): Distinguish between
	ordinary and special symbols.
	(Sized_relobj::write_local_symbols): Add symtab_xindex and
	dynsym_xindex parameters.  Change all callers.  Adjust section
	links.  Use SHN_XINDEX when needed.
	(Sized_relobj::get_symbol_location_info): Adjust section links.
	Don't get fooled by special symbols.
	* object.h (class Xindex): Define.
	(class Object): Add xindex_ parameter.  Declare virtual functoin
	do_initialize_xindex.
	(Object::adjust_sym_shndx): New function.
	(Object::set_xindex): New protected function.
	(class Symbol_value): Add is_ordinary_shndx_ field.
	(Symbol_value::Symbol_value): Initialize is_ordinary_shndx_.
	(Symbol_value::value): Assert ordinary section.
	(Symbol_value::initialize_input_to_output_map): Likewise.
	(Symbol_value::set_input_shndx): Add is_ordinary parameter.
	Change all callers.
	(Symbol_value::input_shndx): Add is_ordinary parameter.  Change
	all callers.
	(class Sized_relobj): Update declarations.
	(Sized_relobj::local_symbol_input_shndx): Add is_ordinary
	parameter.  Change all callers.
	(Sized_relobj::adjust_shndx): New function.
	* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize dynsym_shndx_
	field.
	(Sized_dynobj::find_dynsym_sections): Remove pdynsym_shndx
	parameter.  Change all callers.  Pick up SHT_DYNSYM_SHNDX section
	for SHT_DYNSYM section if available.  Set dynsym_shndx_ field.
	(Sized_dynobj::read_dynsym_section): Adjust section links.
	(Sized_dynobj::read_dynamic): Likewise.
	(Sized_dynobj::do_read_symbols): Use dynsym_shndx_ field.  Adjust
	section links.
	(Sized_dynobj::do_initialize_xindex): New function.
	* dynobj.h (class Sized_dynobj): Add dynsym_shndx_ field.  Declare
	do_initialize_xindex.
	(Sized_dynobj::adjust_shndx): New function.
	* layout.cc (Layout::Layout): Initialize symtab_xindex_ and
	dynsym_xindex_ fields.
	(Layout::finalize): Add a call to set_section_indexes before
	creating the symtab sections.
	(Layout::set_section_indexes): Don't do anything if the section
	already has a section index.
	(Layout::create_symtab_sections): Add shnum parameter.  Change
	caller.  Create .symtab_shndx section if needed.
	(Layout::create_shdrs): Add shstrtab_section parameter.  Change
	caller.
	(Layout::allocated_output_section_count): New function.
	(Layout::create_dynamic_symtab): Create .dynsym_shndx section if
	needed.
	* layout.h (class Layout): Add symtab_xindex_ and dynsym_xindex_
	fields.  Update declarations.
	(Layout::symtab_xindex): New function.
	(Layout::dynsym_xindex): New function.
	(class Write_symbols_task): Add layout_ field.
	(Write_symbols_task::Write_symbols_task): Add layout parameter.
	Change caller.
	* output.cc (Output_section_headers::Output_section_headers): Add
	shstrtab_section parameter.  Change all callers.
	(Output_section_headers::do_sized_write): Store overflow values
	for section count and section string table section index in
	section header zero.
	(Output_file_header::do_sized_write): Check for overflow of
	section count and section string table section index.
	(Output_symtab_xindex::do_write): New function.
	(Output_symtab_xindex::endian_do_write): New function.
	* output.h (class Output_section_headers): Add shstrtab_section_.
	Update declarations.
	(class Output_symtab_xindex): Define.
	(Output_section::has_out_shndx): New function.
	* symtab.cc (Symbol::init_fields): Initialize is_ordinary_shndx_
	field.
	(Symbol::init_base): Add st_shndx and is_ordinary parameters.
	Change all callers.
	(Sized_symbol::init): Likewise.
	(Symbol::output_section): Check for ordinary symbol.
	(Symbol_table::add_from_object): Remove orig_sym parameter.  Add
	st_shndx, is_ordinary, and orig_st_shndx parameters.  Change all
	callers.
	(Symbol_table::add_from_relobj): Add symndx_offset parameter.
	Change all callers.  Simplify handling of symbols from sections
	not included in the link.
	(Symbol_table::add_from_dynobj): Handle ordinary symbol
	distinction.
	(Weak_alias_sorter::operator()): Assert that symbols are
	ordinary.
	(Symbol_table::sized_finalize_symbol): Handle ordinary symbol
	distinction.
	(Symbol_table::write_globals): Add symtab_xindex and dynsym_xindex
	parameters.  Change all callers.
	(Symbol_table::sized_write_globals): Likewise.  Handle ordinary
	symbol distinction.  Use SHN_XINDEX when needed.
	(Symbol_table::write_section_symbol): Add symtab_xindex
	parameter.  Change all callers.
	(Symbol_table::sized_write_section_symbol): Likewise.  Use
	SHN_XINDEX when needed.
	* symtab.h (class Symbol): Add is_ordinary_shndx_ field.  Update
	declarations.
	(Symbol::shndx): Add is_ordinary parameter.  Change all callers.
	(Symbol::is_defined): Check is_ordinary.
	(Symbol::is_undefined, Symbol::is_weak_undefined): Likewise.
	(Symbol::is_absolute, Symbol::is_common): Likewise.
	(class Sized_symbol): Update declarations.
	(class Symbol_table): Update declarations.
	* resolve.cc (Symbol::override_base): Add st_shndx and is_ordinary
	parameters.  Change all callers.
	(Sized_symbol::override): Likewise.
	(Symbol_table::override): Likewise.
	(symbol_to_bits): Add is_ordinary parameter.  Change all callers.
	(Symbol_table::resolve): Remove orig_sym parameter.  Add st_shndx,
	is_ordinary, and orig_st_shndx parameters.  Change all callers.
	* copy-relocs.cc (Copy_relocs::emit_copy_reloc): Require symbol
	to be in an ordinary section.
	* dwarf_reader.cc (Sized_dwarf_line_info::symbol_section): Add
	object and is_ordinary parameters.  Change all callers.
	(Sized_dwarf_line_info::read_relocs): Add object parameter.
	Change all callers.  Don't add undefined or non-ordinary symbols
	to reloc_map_.
	(Sized_dwarf_line_info::read_line_mappings): Add object parameter.
	Change all callers.
	* dwarf_reader.h (class Sized_dwarf_line_info): Update
	declarations.
	* ehframe.cc (Eh_frame::read_fde): Check for ordinary symbol.
	* reloc.cc (Sized_relobj::do_read_relocs): Adjust section links.
	(Sized_relobj::relocate_sections): Likewise.
	* target-reloc.h (scan_relocs): Adjust section symbol index.
	(scan_relocatable_relocs): Likewise.
	* i386.cc (Scan::local): Check for ordinary symbols.
	* sparc.cc (Scan::local): Likewise.
	* x86_64.cc (Scan::local): Likewise.
	* testsuite/binary_unittest.cc (Sized_binary_test): Update calls
	to symbol_section_and_value.
	* testsuite/many_sections_test.cc: New file.
	* testsuite/Makefile.am (BUILT_SOURCES): Define.
	(check_PROGRAMS): Add many_sections_test.
	(many_sections_test_SOURCES): Define.
	(many_sections_test_DEPENDENCIES): Define.
	(many_sections_test_LDFLAGS): Define.
	(BUILT_SOURCES): Add many_sections_define.h.
	(many_sections_define.h): New target.
	(BUILT_SOURCES): Add many_sections_check.h.
	(many_sections_check.h): New target.
	(check_PROGRAMS): Add many_sections_r_test.
	(many_sections_r_test_SOURCES): Define.
	(many_sections_r_test_DEPENDENCIES): Define.
	(many_sections_r_test_LDFLAGS): Define.
	(many_sections_r_test_LDADD): Define.
	(many_sections_r_test.o): New target.
	* testsuite/Makefile.in: Rebuild.
 2008-04-19 18:30:58 +00:00
Ian Lance Taylor
39d0cb0e83 * fileread.cc (File_read::find_view): Add byteshift and vshifted 
parameters.  Update for new key type to views_.  Change all
	callers.
	(File_read::read): Adjust for byteshift in returned view.
	(File_read::add_view): New function, broken out of
	find_and_make_view.
	(File_read::make_view): New function, broken out of
	find_and_make_view.
	(File_read::find_or_make_view): Add offset and aligned
	parameters.  Rewrite accordingly.  Change all callers.
	(File_read::get_view): Add offset and aligned parameters.  Adjust
	for byteshift in return value.
	(File_read::get_lasting_view): Likewise.
	* fileread.h (class File_read): Update declarations.
	(class File_read::View): Add byteshift_ field.  Add byteshift to
	constructor.  Add byteshift method.
	* archive.h (Archive::clear_uncached_views): New function.
	(Archive::get_view): Add aligned parameter.  Change all callers.
	* object.h (Object::get_view): Add aligned parameter.  Change all
	callers.
	(Object::get_lasting_view): Likewise.

	* fileread.cc (File_read::release): Don't call clear_views if
	there are multiple objects.
	* fileread.h (File_read::clear_uncached_views): New function.
	* archive.cc (Add_archive_symbols::run): Call clear_uncached_views
	on the archive.
 2008-04-02 20:58:21 +00:00
Cary Coutant
0a65a3a740 * i386.cc (Target_i386::Got_type): New enum declaration. 
(Target_i386::Scan::local): Updated callers of Output_data_got
	member functions.
	(Target_i386::Scan::global): Likewise.
	(Target_i386::Relocate::relocate): Likewise.
	(Target_i386::Relocate::relocate_tls): Likewise.
	* object.h (Got_offset_list): New class.
	(Sized_relobj::local_has_got_offset): Added got_type parameter.
	(Sized_relobj::local_got_offset): Likewise.
	(Sized_relobj::set_local_got_offset): Likewise.
	(Sized_relobj::local_has_tls_got_offset): Removed.
	(Sized_relobj::local_tls_got_offset): Removed.
	(Sized_relobj::set_local_tls_got_offset): Removed.
	(Sized_relobj::Local_got_offsets): Changed to store a list of offsets.
	* output.cc (Output_data_got::add_global): Added got_type parameter.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): New function.
	(Output_data_got::add_global_pair_with_rela): New function.
	(Output_data_got::add_local): Added got_type parameter.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): New function.
	(Output_data_got::add_local_pair_with_rela): New function.
	(Output_data_got::add_global_tls): Removed.
	(Output_data_got::add_global_tls_with_rel): Removed.
	(Output_data_got::add_global_tls_with_rela): Removed.
	(Output_data_got::add_local_tls): Removed.
	(Output_data_got::add_local_tls_with_rel): Removed.
	(Output_data_got::add_local_tls_with_rela): Removed.
	* output.h (Output_data_got::add_global): Added got_type parameter.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): New function.
	(Output_data_got::add_global_pair_with_rela): New function.
	(Output_data_got::add_local): Added got_type parameter.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): New function.
	(Output_data_got::add_local_pair_with_rela): New function.
	(Output_data_got::add_global_tls): Removed.
	(Output_data_got::add_global_tls_with_rel): Removed.
	(Output_data_got::add_global_tls_with_rela): Removed.
	(Output_data_got::add_local_tls): Removed.
	(Output_data_got::add_local_tls_with_rel): Removed.
	(Output_data_got::add_local_tls_with_rela): Removed.
	* resolve.cc (Symbol::override_base_with_special): Removed
	reference to has_got_offset_ field.
	* symtab.cc (Symbol::init_fields): Replaced initialization
	of got_offset_ with got_offsets_.  Removed initialization
	of has_got_offset_
	*symtab.h (Symbol::has_got_offset): Aded got_type parameter.
	(Symbol::got_offset): Likewise.
	(Symbol::set_got_offset): Likewise.
	(Symbol::has_tls_got_offset): Removed.
	(Symbol::tls_got_offset): Removed.
	(Symbol::set_tls_got_offset): Removed.
	(Symbol::got_offset_): Removed.
	(Symbol::tls_mod_got_offset_): Removed.
	(Symbol::tls_pair_got_offset_): Removed.
	(Symbol::got_offsets_): New field.
	(Symbol::has_got_offset): Removed.
	(Symbol::has_tls_mod_got_offset): Removed.
	(Symbol::has_tls_pair_got_offset): Removed.
	* x86_64.cc (Target_x86_64::Got_type): New enum declaration.
	(Target_x86_64::Scan::local): Updated callers of Output_data_got
	member functions.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::Relocate::relocate): Likewise.
	(Target_x86_64::Relocate::relocate_tls): Likewise.
 2008-03-25 18:37:16 +00:00
Ian Lance Taylor
d1f003c610 Fix handling of RELA relative relocs against local symbols in merge 
sections.
 2008-03-16 23:51:19 +00:00
Ian Lance Taylor
ebdbb4583d Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
Ian Lance Taylor
7d1a9ebbf2 Remove gcc 3.2 compatibility hacks. 2008-02-29 19:19:17 +00:00
Ian Lance Taylor
7019cd2565 Implement -q/--emit-relocs. 2008-02-27 22:38:18 +00:00
Ian Lance Taylor
dceae3c154 Support dynamic relocations against local section symbols. 2008-02-12 00:28:48 +00:00
Ian Lance Taylor
88dd47ac00 Implement --just-symbols, including -R FILE. Fix symbol values when 
doing a relocatable link.
 2008-02-07 01:51:25 +00:00
Ian Lance Taylor
fbfba50887 Support creating empty output when there are no input objects. 2008-02-06 20:32:10 +00:00
Ian Lance Taylor
6a74a71947 Initial -r support. 2008-02-06 08:13:50 +00:00
Ian Lance Taylor
a445fddf82 Fully implement the SECTIONS clause. 2008-02-04 05:43:05 +00:00
Ian Lance Taylor
cb29561284 Reduce the number of system calls. Use readv instead of pread. Do 
better handling of cached views.
 2008-01-02 23:48:49 +00:00
Ian Lance Taylor
a9a60db689 Speed up relocations against local symbols in merged sections. 2007-12-21 21:19:45 +00:00
Ian Lance Taylor
8383303e0a Add section_size_type and section_offset_type, use them to replace a 
lot of instances of off_t.
 2007-12-18 00:48:04 +00:00
Ian Lance Taylor
17a1d0a9b2 Rewrite workqueue. This version eliminates the master thread, and 
reduces the amount of locking required to find a new thread to run.
 2007-12-14 19:00:21 +00:00
Ian Lance Taylor
7004837e8d Add const to Object::read and Object::sized_target. 2007-12-14 18:50:01 +00:00
Ian Lance Taylor
6d01333390 From Craig Silverstein: size hash tables to avoid resizing. 2007-12-14 05:24:17 +00:00
Ian Lance Taylor
ac1f0c21ae From Cary Coutant: Remove commented out assert. Also add comment for 
bitfield check.
 2007-12-07 00:54:28 +00:00
Ian Lance Taylor
7bf1f8020f From Cary Coutant: More support for generating shared libraries. 2007-12-06 05:55:50 +00:00
Ian Lance Taylor
96803768f1 Compress all debug sections. 2007-12-01 06:34:12 +00:00
Ian Lance Taylor
4625f782a5 Rework merge_map for speed. 2007-11-27 06:13:33 +00:00
Ian Lance Taylor
07f397aba3 From Cary Coutant: Improve i386 shared library TLS support. 2007-11-14 22:31:02 +00:00
Ian Lance Taylor
9a2d698415 Add heuristics for undefined symbol warnings. 2007-11-14 16:53:25 +00:00
Ian Lance Taylor
e2827e5f52 Warn about undefined references in shared libraries if we have seen 
all the DT_NEEDED entries for that library.
 2007-11-14 07:34:53 +00:00
Ian Lance Taylor
4c50553d98 From Craig Silverstein: Use relocations in reporting error message 
locations.
 2007-11-09 23:16:54 +00:00
Ian Lance Taylor
730cdc88f7 Generate a complete exception frame header. Discard duplicate 
exception frame information.
 2007-11-09 07:00:15 +00:00
Ian Lance Taylor
f7e2ee4820 Reworked from Andrew Chatham: report error locations. 2007-11-02 03:28:52 +00:00
Ian Lance Taylor
fe9a4c1201 Add infrastructure for threading support. 2007-10-17 06:24:50 +00:00
Ian Lance Taylor
75f2446ec3 Run all error handling through an Errors object. Delete output file 
on error.
 2007-10-14 06:49:14 +00:00
Ian Lance Taylor
cec9d2f362 From Craig Silverstein: don't get confused if the same file name 
occurs in an archive.
 2007-10-10 06:33:56 +00:00
Ian Lance Taylor
e727fa71af Add support for local GOT offsets. 2007-10-08 07:22:21 +00:00
Ian Lance Taylor
063f12a825 Correct handling of addends in merged sections. 2007-10-06 05:40:44 +00:00
Ian Lance Taylor
9eb9fa57c2 Add cache parameter to get_view. Discard uncached views on unlock. 
Fix bug this exposed in archive armap symbol name handling.
 2007-09-25 17:50:26 +00:00
Ian Lance Taylor
6cb15b7f89 Add licensing text to every source file. 2007-09-22 21:02:10 +00:00
Ian Lance Taylor
7e1edb9089 Add global parameters. 2007-09-21 07:20:01 +00:00
Ian Lance Taylor
b8e6aad960 Add support for SHF_MERGE sections. 2007-05-16 17:42:48 +00:00
Ian Lance Taylor
008db82ec1 Don't emit symbols seen only in dynamic object, don't read duplicate 
dynamic object.
 2006-12-06 06:28:56 +00:00
Ian Lance Taylor
5a6f7e2db5 Added a testsuite. More support for COPY relocations. 2006-11-30 23:52:50 +00:00
Ian Lance Taylor
a3ad94edd4 Hash tables, dynamic section, i386 PLT, gold_assert. 2006-11-29 17:56:40 +00:00
Ian Lance Taylor
c06b7b0ba3 Snapshot. Includes first cut at output relocation sections. 2006-11-16 00:38:25 +00:00
Ian Lance Taylor
dbe717effb More dynamic object support, initial scripting support. 2006-11-14 19:21:05 +00:00
Ian Lance Taylor
645f81233b Add Elf_file interface which can be used by both Sized_relobj and 
Sized_dynobj.
 2006-11-07 18:51:39 +00:00
Ian Lance Taylor
f6ce93d6e9 Split Object into Dynobj and Relobj, incorporate elfcpp swapping changes. 2006-11-06 22:46:08 +00:00
Ian Lance Taylor
593f47df45 gcc 3.2.2 portability hacks. 2006-11-03 18:38:43 +00:00
Ian Lance Taylor
ead1e4244a Can now do a full static link of hello, world in C or C++ 2006-11-03 18:26:11 +00:00
Ian Lance Taylor
92e059d8dc Framework for relocation scanning. Implement simple static TLS 
relocations.
 2006-10-20 20:40:49 +00:00
Ian Lance Taylor
a783673bd6 Avoid multiple definition errors from linkonce sections. 2006-10-10 18:54:06 +00:00
Ian Lance Taylor
12e14209f0 Lay out object file sections when we add the symbols to the symbol 
table.
 2006-10-06 20:40:16 +00:00