Commit Graph

46 Commits

Author SHA1 Message Date
Cary Coutant 89fc34211b Add plugin functionality for link-time optimization (LTO).
include/:
	* plugin-api.h: New file.

gold/:
	* configure.ac (plugins): Add --enable-plugins option.
	* configure: Regenerate.
	* config.in: Regenerate.
	* Makefile.am (LIBDL): New variable.
	(CCFILES): Add plugin.cc.
	(HFILES): Add plugin.h.
	(ldadd_var): Add LIBDL.
	* Makefile.in: Regenerate.

	* archive.cc: Include "plugin.h".
	(Archive::setup): Don't preread archive symbols when using a plugin.
	(Archive::get_file_and_offset): Add memsize parameter.  Change callers.
	(Archive::get_elf_object_for_member): Call plugin hooks for claiming
	files.
	(Archive::include_member): Add symbols from plugin objects.
	* archive.h (Archive::get_file_and_offset): Add memsize parameter.
	* descriptors.cc (Descriptors::open): Check for file descriptors
	abandoned by plugins.
	(Descriptors::claim_for_plugin): New function.
	* descriptors.h (Descriptors::claim_for_plugin): New function.
	(Open_descriptor::is_claimed): New field.
	(claim_descriptor_for_plugin): New function.
	* fileread.cc (File_read::claim_for_plugin): New function.
	* fileread.h (File_read::claim_for_plugin): New function.
	(File_read::descriptor): New function.
	* gold.cc: Include "plugin.h".
	(queue_initial_tasks): Add task to call plugin hooks for generating
	new object files.
	* main.cc: Include "plugin.h".
	(main): Load plugin libraries.
	* object.h (Pluginobj): Declare.
	(Object::pluginobj): New function.
	(Object::do_pluginobj): New function.
	(Object::set_target): New function.
	* options.cc: Include "plugin.h".
	(General_options::parse_plugin): New function.
	(General_options::General_options): Initialize plugins_ field.
	(General_options::add_plugin): New function.
	* options.h (Plugin_manager): Declare.
	(General_options): Add --plugin option.
	(General_options::has_plugins): New function.
	(General_options::plugins): New function.
	(General_options::add_plugin): New function.
	(General_options::plugins_): New field.
	* plugin.cc: New file.
	* plugin.h: New file.
	* readsyms.cc: Include "plugin.h".
	(Read_symbols::do_read_symbols): Check for archive before checking
	for ELF file.  Call plugin hooks to claim files.
	* resolve.cc (Symbol_table::resolve): Record when symbol is referenced
	from a real object file; force override when processing replacement
	files.
	* symtab.cc (Symbol::init_fields): Initialize in_real_elf_ field.
	(Symbol::init_base_object): Likewise.
	(Symbol::init_base_output_data): Likewise.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): Likewise.
	(Symbol::output_section): Assert that object is not a plugin.
	(Symbol_table::add_from_pluginobj): New function.
	(Symbol_table::sized_finalize_symbol): Treat symbols from plugins as
	undefined.
	(Symbol_table::sized_write_globals): Likewise.
	(Symbol_table::add_from_pluginobj): Instantiate template.
	* symtab.h (Sized_pluginobj): Declare.
	(Symbol::in_real_elf): New function.
	(Symbol::set_in_real_elf): New function.
	(Symbol::in_real_elf_): New field.
	(Symbol_table::add_from_pluginobj): New function.

	* testsuite/Makefile.am (AM_CFLAGS): New variable.
	(LIBDL): New variable.
	(LDADD): Add LIBDL.
	(check_PROGRAMS): Add plugin_test_1 and plugin_test_2.
	(check_SCRIPTS): Add plugin_test_1.sh and plugin_test_2.sh.
	(check_DATA): Add plugin_test_1.err and plugin_test_2.err.
	(MOSTLYCLEANFILES): Likewise.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test.c: New file.
	* testsuite/plugin_test_1.sh: New file.
	* testsuite/plugin_test_2.sh: New file.
2008-09-19 22:54:57 +00:00
Ian Lance Taylor de31bda5f6 * fileread.cc (make_view): Add casts to avoid warning. 2008-09-16 17:17:22 +00:00
Cary Coutant a9caad024e 2008-09-05 Cary Coutant <ccoutant@google.com>
* fileread.cc (File_read::make_view): Add check for attempt to map
	beyond end of file.
2008-09-10 17:56:02 +00:00
Craig Silverstein 1e52a9c187 2008-08-20 Craig Silverstein <csilvers@google.com>
* fileread.cc (File_read::open): Do not lock the file unless it
	was successfully opened.
2008-08-21 00:30:13 +00:00
Ian Lance Taylor 2a00e4fb8e PR 5990
* descriptors.cc: New file.
	* descriptors.h: New file.
	* gold-threads.h (class Hold_optional_lock): New class.
	* fileread.cc: Include "descriptors.h".
	(File_read::~File_read): Release descriptor rather than closing
	it.
	(File_read::open) [file]: Call open_descriptor rather than open.
	Set is_descriptor_opened_.
	(File_read::open) [memory]: Assert that descriptor is not open.
	(File_read::reopen_descriptor): New function.
	(File_read::release): Release descriptor.
	(File_read::do_read): Make non-const.  Reopen descriptor.
	(File_read::read): Make non-const.
	(File_read::make_view): Reopen descriptor.
	(File_read::do_readv): Likewise.
	* fileread.h (class File_read): Add is_descriptor_opened_ field.
	Update declarations.
	* layout.cc: Include "descriptors.h".
	(Layout::create_build_id): Use open_descriptor rather than open.
	* output.cc: Include "descriptors.h".
	(Output_file::open): Use open_descriptor rather than open.
	* archive.cc (Archive::const_iterator): Change Archive to be
	non-const.
	(Archive::begin, Archive::end): Make non-const.
	(Archive::count_members): Likewise.
	* archive.h (class Archive): Update declarations.
	* object.h (Object::read): Make non-const.
	* Makefile.am (CCFILES): Add descriptors.cc.
	(HFILES): Add descriptors.h.
	* Makefile.in: Rebuild.
2008-07-25 04:25:49 +00:00
Cary Coutant 3f2e6a2da5 2008-06-25 Cary Coutant <ccoutant@google.com>
* fileread.cc (File_read::make_view): Assert on zero-length view.
	* object.cc (Sized_relobj::do_read_symbols): Don't try to read
	symbol table when there are no symbols to read.
2008-06-25 17:10:08 +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 ebdbb4583d Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
Ian Lance Taylor 2285a61069 From Craig Silverstein: Implement --debug=files to track file opens,
and implement --verbose as a synonym.
2008-03-13 01:46:17 +00:00
Ian Lance Taylor 7cc619c3b1 From Craig Silverstein: rename some option functions in preparation
for reworking option handling.
2008-03-04 18:21:43 +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 45aa233bdc From Craig Silverstein: rename option functions for future option
handling rewrite.
2008-02-26 21:45:30 +00:00
Ian Lance Taylor 0daa6f62c8 Support selecting target by name. 2008-02-13 02:44:50 +00:00
Ian Lance Taylor bc644c6cfc Add support for --format binary for input files. 2008-02-08 07:06:58 +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 14144f39e4 Don't include options.h in fileread.h. Remove General_options
reference from Output_file class.
2008-01-18 23:26:48 +00:00
Ian Lance Taylor be2f3dec43 Add cast to avoid signed/unsigned warning. 2008-01-02 23:55:37 +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 8cce671843 Fix buglet in last patch. 2007-12-20 21:26:17 +00:00
Ian Lance Taylor fe8718a463 Convert more instances of off_t to be 32-bit types. 2007-12-20 21:21:24 +00:00
Ian Lance Taylor 9bb53bf8b8 Avoid some warnings which showed up in 64-bit mode. 2007-12-19 01:18:41 +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 c71c6f566c Make some File_read methods const. 2007-12-14 18:22:06 +00:00
Ian Lance Taylor fcf29b2415 Keep views on views_ list so that they can be found again. 2007-12-10 22:55:31 +00:00
Ian Lance Taylor 6161122258 Implement -Bstatic/-Bdynamic. 2007-10-22 18:04:43 +00:00
Ian Lance Taylor a0c4fb0ac6 Remove extraneous newlines. 2007-10-14 06:57:58 +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 e44fcf3bcf Add --stats option to print runtime and memory usage statistics. 2007-10-12 05:51:25 +00:00
Ian Lance Taylor e2aacd2c75 Fix soname for library found in search path. 2007-10-09 17:46:15 +00:00
Ian Lance Taylor ad2d6943a4 Full support for --sysroot. 2007-10-04 05:49:04 +00:00
Ian Lance Taylor 51dee2fec3 From Craig Silverstein: add support for searching for input files
named in linker scripts.
2007-10-02 21:24:41 +00:00
Ian Lance Taylor d1038c216f Use mmap to read from input files. 2007-09-25 23:08:30 +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 82dcae9de0 Rework File_read interface. Get file size. Use pread when
available.
2007-09-25 06:43:17 +00:00
Ian Lance Taylor bae3688d8f Remove get_view_and_size. 2007-09-25 05:16:35 +00:00
Ian Lance Taylor ba45d2478b Break out default pbytes argument to read and get_view routines,
adding new routines.
2007-09-25 00:27:29 +00:00
Ian Lance Taylor 6cb15b7f89 Add licensing text to every source file. 2007-09-22 21:02:10 +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 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 61ba1cf936 Snapshot. Now able to produce a minimal executable which actually
runs.
2006-09-29 19:58:17 +00:00
Ian Lance Taylor bae7f79e03 Initial CVS checkin of gold 2006-08-04 23:10:59 +00:00