Commit graph

171 commits

Author SHA1 Message Date
Ian Lance Taylor
c165fb930a * object.cc (make_elf_object): Correct test for 64-bit ELF file
header size.
2008-04-23 17:32:53 +00:00
Ian Lance Taylor
7fcd3aa988 * object.cc (Sized_relobj::do_add_symbols): Always pass
local_symbol_count_ to add_from_relobj.
2008-04-19 19:34:41 +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
Cary Coutant
c5818ff112 * errors.cc (Errors::info): New function.
(gold_info): New function.
	* errors.h (Errors::info): New function.
	* gold.h (gold_info): New function.
	* object.cc (Input_objects::add_object): Print trace output.
	* options.cc (options::parse_set): New function.
	(General_options::parse_wrap): Deleted.
	(General_options::General_options): Deleted initializer.
	* options.h (options::String_set): New typedef.
	(options::parse_set): New function.
	(DEFINE_set): New macro.
	(General_options::wrap): Changed to use DEFINE_set. Changed
	callers of any_wrap_symbols and is_wrap_symbol.
	(General_options::trace, General_options::trace_symbol):
	New options.
	(General_options::any_wrap_symbols, General_options::is_wrap_symbol)
	(General_options::wrap_symbols_): Deleted.
	* symtab.cc (Symbol_table::add_from_object): Print trace output.
2008-04-17 22:45:47 +00:00
Ian Lance Taylor
2c38906f72 * layout.h (class Layout): Add added_eh_frame_data_ field.
* layout.cc (Layout::Layout): Initialize new field.
	(Layout::layout_eh_frame): Don't add eh_frame_data_ to .eh_frame
	output section until we find a section we merged successfully.
	* object.cc (Sized_relobj::check_eh_frame_flags): Don't require
	that the size be non-zero.
2008-04-09 00:26:48 +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
Ian Lance Taylor
04bf70729d PR gold/5986
Fix problems building gold with gcc 4.3.0.
	* gold.h (TEMPLATE_ATTRIBUTE_PRINTF_4): Define.
	(gold_error_at_location, gold_warning_at_location): Use it.
	* configure.ac: Check whether we can compile and use a template
	function with a printf attribute.
	* x86_64.cc (Target_x86_64::do_code_fill): Swap out a 32-bit value
	when jumping over bytes.
	* object.cc: Instantiate Object::read_section_data.
	* debug.h: Include <cstring>
	* dwarf_reader.cc: Include <algorithm>
	* main.cc: Include <cstring>.
	* options.cc: Include <cstring>.
	* output.cc: Include <cstring>.
	* script.cc: Include <cstring>.
	* script.h: Include <string>.
	* symtab.cc: Include <cstring> and <algorithm>.
	* target-select.cc: Include <cstring>.
	* version.cc: Include <string>.
	* testsuite/testmain.cc: Include <cstdlib>.
	* configure, config.in: Rebuild.
2008-03-26 23:36:46 +00:00
Ian Lance Taylor
086a18414a * options.cc: Include "demangle.h".
(parse_optional_string): New function.
	(parse_long_option): Handle takes_optional_argument.
	(parse_short_option): Update dash_z initializer.  Handle
	takes_optional_argument.
	(General_options::General_options): Initialize do_demangle_.
	(General_options::finalize): Set do_demangle_.  Handle demangling
	style.
	* options.h (parse_optional_string): Declare.
	(struct One_option): Add optional_arg field.  Update constructor.
	Update call constructor calls.  Add takes_optional_argument
	function.
	(DEFINE_var): Add optional_arg__ parameter.  Change all callers.
	(DEFINE_optional_string): Define.
	(General_options::demangle): Change from DEFINE_bool to
	DEFINE_optional_string.
	(General_options::no_demangle): New function.
	(General_options::do_demangle): New function.
	(General_options::set_do_demangle): New function.
	(General_options::execstack_status_): Move definition to end of
	class definition.
	(General_options::static_): Likewise.
	(General_options::do_demangle_): New field.
	* object.cc (big_endian>::get_symbol_location_info): Call
	Options::do_demangle, not Options::demangle.
	* symtab.cc (demangle): Likewise.
2008-03-24 03:48:29 +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
1650c4ff50 Combine read-only .eh_frame sections with read-write .eh_frame
sections.
2008-03-12 04:38:42 +00:00
Ian Lance Taylor
0dfbdef4c4 Support -d/--define-common. 2008-02-28 20:35:39 +00:00
Ian Lance Taylor
8851eccaec From Craig Silverstein: Have Parameters point to General_options. 2008-02-28 00:18:24 +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
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
8d32f93595 Correct handling of non-section symbol in merged section. Avoid some
64-bit signed/unsigned warnings.
2007-12-21 23:08:25 +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
f2619d6c3b Initialize variable to avoid warning. 2007-12-06 06:03:00 +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
a2b1aa12f7 From Craig Silverstein: Add support for --demangle. 2007-11-15 01:12:55 +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
a55ce7febf From Craig Silverstein: Rework debug info code a bit, add option for
ODR violations, add test case.
2007-11-14 01:03:01 +00:00
Ian Lance Taylor
24badc6562 From Craig Silverstein: rework DWARF reader code a bit. 2007-11-12 19:56:20 +00:00
Ian Lance Taylor
aed38d0694 From Craig Silverstein: Initialize got_relocs. 2007-11-09 23:56:32 +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
e43872e995 From Craig Silverstein: Templatize the Dwarf reader. 2007-11-07 00:49:56 +00:00
Ian Lance Taylor
019cdb1a59 From Craig Silverstein: Don't crash if we see a file we don't recognize. 2007-11-07 00:31:32 +00:00
Ian Lance Taylor
5c2c6c957b From Craig Silverstein: Add first version of generating error messages
with file name and line number.
2007-11-02 23:02:44 +00:00
Ian Lance Taylor
f7e2ee4820 Reworked from Andrew Chatham: report error locations. 2007-11-02 03:28:52 +00:00
Ian Lance Taylor
35cdfc9a87 Add support for PT_GNU_STACK. 2007-10-23 05:05:48 +00:00
Ian Lance Taylor
ad435a2465 Adjust linkonce symbol name algorithm to work for
.gnu.linkonce.t.__i686.get_pc_thunk.bx.
2007-10-14 07:27:10 +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
27b7985a73 From Craig Silverstein: add some internationalization calls. 2007-10-14 04:06:18 +00:00
Ian Lance Taylor
cfd73a4e26 Add an option for Stringpools to not copy strings. 2007-10-12 06:06:34 +00:00
Ian Lance Taylor
9e2dcb779c Implement -s and -S options which strip symbols. 2007-10-10 19:02:56 +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
f5c3f2256f From Craig Silverstein: avoid some signed/unsigned warnings from gcc 4.2. 2007-10-02 20:52:18 +00:00
Ian Lance Taylor
9025d29d14 Put size and endianness in parameters. 2007-09-26 07:01:35 +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
cba134d613 From Cary Coutant: only check for a linkonce section if the SHF_GROUP
flag is clear.
2007-09-20 06:02:06 +00:00
Ian Lance Taylor
193a53d920 Add support for --enable-target to control which template
specializations we generate.
2007-09-04 20:00:53 +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
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
f0641a0b38 Rework stringpool and hash tables so that we always generate the same
output regardless of randomize_va_space.
2006-11-07 04:40:46 +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
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
Ian Lance Taylor
61ba1cf936 Snapshot. Now able to produce a minimal executable which actually
runs.
2006-09-29 19:58:17 +00:00
Ian Lance Taylor
75f65a3e30 Finished layout code. 2006-09-27 22:53:42 +00:00
Ian Lance Taylor
54dc642545 More section layout code. 2006-09-26 21:00:34 +00:00
Ian Lance Taylor
a2fb1b05e4 New drop, with first cut of section layout code. 2006-09-21 22:13:18 +00:00
Ian Lance Taylor
14bfc3f555 Another snapshot of the current state of the sources. Gets to the
point of symbol resolution and can now issue a multiple definition
error.  Also added target selection infrastructure.
2006-08-18 22:29:20 +00:00
Ian Lance Taylor
bae7f79e03 Initial CVS checkin of gold 2006-08-04 23:10:59 +00:00