Commit graph

191 commits

Author SHA1 Message Date
Cary Coutant
edfbb02953 * i386.cc (Target_i386::define_tls_base_symbol): New function.
(Target_i386::tls_base_symbol_defined_): New field.
	(Target_i386::Scan::local): Define _TLS_MODULE_BASE_ symbol.
	(Target_i386::Scan::global): Likewise.
	* symtab.cc (sized_finalize_symbol): Add check for TLS symbol.
	* x86_64.cc (Target_x86_64::define_tls_base_symbol): New function.
	(Target_x86_64::tls_base_symbol_defined_): New field.
	(Target_x86_64::Scan::local): Define _TLS_MODULE_BASE_ symbol.
	(Target_x86_64::Scan::global): Likewise.
2008-04-17 02:00:54 +00:00
Ian Lance Taylor
a4bb589a17 Fix typo in comment in last commit. 2008-04-10 00:58:58 +00:00
Ian Lance Taylor
99a37bfda0 * symtab.cc (Symbol_table::add_from_dynobj): Only look for weak
aliases for symbols defined in the same object.
	* testsuite/Makefile.am (check_PROGRAMS): Add weak_alias_test.
	(weak_alias_test_SOURCES): New variable.
	(weak_alias_test_DEPENDENCIES): New variable.
	(weak_alias_test_LDFLAGS): New variable.
	(weak_alias_test_LDADD): New variable.
	(weak_alias_test_1_pic.o, weak_alias_test_1.so): New targets.
	(weak_alias_test_2_pic.o, weak_alias_test_2.so): New targets.
	(weak_alias_test_3.o): New target.
	(weak_alias_test_4_pic.o, weak_alias_test_4.so): New targets.
	* testsuite/weak_alias_test_main.cc: New file.
	* testsuite/weak_alias_test_1.cc: New file.
	* testsuite/weak_alias_test_2.cc: New file.
	* testsuite/weak_alias_test_3.cc: New file.
2008-04-09 22:45:08 +00:00
Ian Lance Taylor
0864d55193 * options.h (class General_options): Define --wrap as a special
option.  Add wrap_symbols_ field.
	(General_options::any_wrap_symbols): New function.
	(General_options::is_wrap_symbol): New function.
	* options.cc (General_options::parse_wrap): New function.
	(General_options::General_options): Initialize wrap_symbols_.
	* symtab.cc (Symbol_table::wrap_symbol): New function.
	(Symbol_table::add_from_object): Handle --wrap.
	* symtab.h (class Symbol_table): Declare wrap_symbol.
	* target.h (Target::wrap_char): New function.
	(Target::Target_info): Add wrap_char field.
	* i386.cc (Target_i386::i386_info): Initialize wrap_char.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info):
	Likewise.
2008-04-09 00:48:13 +00:00
Ian Lance Taylor
686c8caf41 * symtab.cc (Symbol_table::do_define_as_constant): Don't force a
version symbol to be local.
	* testsuite/ver_test_4.sh: New file.
	* testsuite/Makefile.am (check_SCRIPTS): Add ver_test_4.sh.
	(check_DATA): Add ver_test_4.syms.
	(ver_test_4.syms): New target.
	* testsuite/Makefile.in: Rebuild.
2008-03-29 08:39:26 +00:00
Ian Lance Taylor
479f65031f * symtab.cc (Symbol_table::add_from_object): If we don't use the
new symbol when resolving, don't call set_is_default.
	* testsuite/ver_test_7.cc: New file.
	* testsuite/ver_test_7.sh: New file.
	* testsuite/Makefile.am (ver_test_7.so): New target.
	(ver_test_7.o): New target.
	(check_SCRIPTS): Add ver_test_7.sh.
	(check_DATA): Add ver_test_7.syms.
	(ver_test_7.syms): New target.
2008-03-29 07:19:02 +00:00
Ian Lance Taylor
18e6b24e63 * symtab.cc (Symbol_table::add_from_object): Handle saw_undefined_
and commons_ correctly when NAME/VERSION does not override
	NAME/NULL.
	* testsuite/ver_test_6.c: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_6
	(ver_test_6_SOURCES, ver_test_6_DEPENDENCIES): New variables.
	(ver_test_6_LDFLAGS, ver_test_6_LDADD): New variables.
2008-03-27 18:19:09 +00:00
Ian Lance Taylor
5871526fc2 * symtab.cc (Symbol_table::add_from_relobj): Don't set the version
of an undefined symbol from a version script.
	* testsuite/Makefile.am (ver_test_5.so): New target.
	(ver_test_5.o): New target.
	(check_SCRIPTS): Add ver_test_5.sh.
	(check_DATA): Add ver_test_5.syms.
	(ver_test_5.syms): New target.
	* testsuite/ver_test_5.cc: New file.
	* testsuite/ver_test_5.script: New file.
	* testsuite/ver_test_5.sh: New file.
	* Makefile.in, testsuite/Makefile.in: Rebuild.
2008-03-27 06:11:57 +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
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
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
be3e620119 Don't get confused about whether a symbol is the default version if we
see a later reference to it.  Add tests for this case.
2008-03-14 05:57:19 +00:00
Ian Lance Taylor
7d1a9ebbf2 Remove gcc 3.2 compatibility hacks. 2008-02-29 19:19:17 +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
caa9d5d919 Assignments in linker scripts override definitions from object files. 2008-02-13 01:20:38 +00:00
Ian Lance Taylor
77e655378d Track sections for expressions. 2008-02-09 01:22:17 +00:00
Ian Lance Taylor
5fe2a0f55b Even when stripping all symbols, we need to write out the dynamic
symbol table.
2008-02-07 04:35:41 +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
a445fddf82 Fully implement the SECTIONS clause. 2008-02-04 05:43:05 +00:00
Ian Lance Taylor
65778909ad From Cary Coutant: Ignore hidden symbols in a dynamic object. 2008-02-01 00:42:24 +00:00
Ian Lance Taylor
9b07f471e3 Don't pass around the target in order to define symbols; get it from
the parameters instead.
2008-01-26 01:17:45 +00:00
Ian Lance Taylor
55a934330a Originally from Craig Silverstein, with changes: support using a
version script to force symbols to be local.
2008-01-24 00:15:00 +00:00
Ian Lance Taylor
091244672e From Andrew Chatham and Craig Silverstein: Add support for version
scripts.
2008-01-15 23:41:28 +00:00
Ian Lance Taylor
e5756efb6d Support assignments and expressions in linker scripts. 2008-01-09 19:57:45 +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
99f8facac9 From Cary Coutant: Fix handling of versioned symbols, add some tests. 2007-12-21 23:31:19 +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
c0873094f5 Use string length when available when calling Stringpool. Compare
pointers first when looking up Stringpool entries.
2007-12-19 00:29:28 +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
6d01333390 From Craig Silverstein: size hash tables to avoid resizing. 2007-12-14 05:24:17 +00:00
Ian Lance Taylor
e8c846c359 From Cary Coutant: Fix handling of RELATIVE RELA relocs. 2007-12-07 19:32:59 +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
ad8f37d1ba Stringpool stats. Also make Symbol_table support functions inline. 2007-12-05 00:48:49 +00:00
Ian Lance Taylor
abaa399568 Print symbol table statistics with --stats. 2007-12-04 23:11:35 +00:00
Ian Lance Taylor
c79126688f Add threading support. 2007-11-22 00:05:51 +00:00
Ian Lance Taylor
dd8670e56c From Craig Silverstein: Quote the symbol name in the ODR violation
message to avoid a gcc collect2 demangling bug.
2007-11-17 02:49:22 +00:00
Ian Lance Taylor
ff541f308a When looking for ODR violations, only check the file base name. Also,
never demangle if --no-demangle was used.
2007-11-16 16:54:19 +00:00
Ian Lance Taylor
b01c0a4adb Workaround bug in gcc 4.0.3 STL. 2007-11-15 20:41:19 +00:00
Ian Lance Taylor
a2b1aa12f7 From Craig Silverstein: Add support for --demangle. 2007-11-15 01:12:55 +00:00
Ian Lance Taylor
78f156961e From Craig Silverstein: Report output file name with ODR violation
warning message.
2007-11-14 18:44:58 +00:00
Ian Lance Taylor
9a2d698415 Add heuristics for undefined symbol warnings. 2007-11-14 16:53:25 +00:00
Ian Lance Taylor
601e4987b8 Revert last patch. 2007-11-14 08:03:41 +00:00
Ian Lance Taylor
3728821ffc Support special always-defined symbols for targets. 2007-11-14 07:52:21 +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
70e654ba48 From Craig Silverstein: First cut at detecting ODR violations. 2007-11-13 20:02:32 +00:00
Ian Lance Taylor
d61c6bd41c From Cary Coutant: More shared library support, some refactorization. 2007-11-09 19:45:08 +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
35cdfc9a87 Add support for PT_GNU_STACK. 2007-10-23 05:05:48 +00:00
Ian Lance Taylor
46fe162319 Fix versions of copied symbols. 2007-10-22 23:08:22 +00:00
Ian Lance Taylor
436ca963fd From Cary Coutant: preliminary shared library support. 2007-10-16 23:23:08 +00:00
Ian Lance Taylor
aeddab66fe Keep track of weak aliases, so that overriding environ works. 2007-10-14 15:35:27 +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
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
b3b74ddc6e Use parameters to track whether we are doing a static link. Fix up
final_value_is_known for weak undefined symbols.  Pointed out by Cary
Coutant.
2007-09-28 06:36:25 +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
ab5c9e90a6 Use special value when we refer a function symbol in some way other
than calling it.
2007-09-23 05:31:48 +00:00
Ian Lance Taylor
6cb15b7f89 Add licensing text to every source file. 2007-09-22 21:02:10 +00:00
Ian Lance Taylor
d4f5281bde It's OK to have a version if we have an existing symbol. 2007-09-22 20:08:16 +00:00
Ian Lance Taylor
306d9ef048 Canonicalize name and version when working with special symbols. 2007-09-22 04:40:13 +00:00
Ian Lance Taylor
86f2e68346 Let special symbols override existing symbols rather than
reinitializing them.
2007-09-19 06:02:29 +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
64707334c7 Ignore VER_NDX_LOCAL for an undefined symbol. 2007-09-04 17:59:53 +00:00
Ian Lance Taylor
1ebd95fdf1 Copy in_reg and in_dyn when resolving NAME/VERSION with NAME/NULL. 2007-08-29 03:42:51 +00:00
Ian Lance Taylor
f4151f8959 Initialize plt_offset_ and has_plt_offset_ in a Symbol. 2007-08-28 04:11:50 +00:00
Ian Lance Taylor
a6badf5a97 Add support for -E/--export-dynamic. Also clean up --help output a bit. 2007-08-22 05:06:38 +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
14b3174058 Generate version information. 2006-12-06 00:02:36 +00:00
Ian Lance Taylor
6a4699867a gcc 3.2.2 portability hacks. 2006-12-01 16:58:12 +00:00
Ian Lance Taylor
16649710df Can now dynamically link hello, world. 2006-12-01 16:51:25 +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
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
a783673bd6 Avoid multiple definition errors from linkonce sections. 2006-10-10 18:54:06 +00:00
Ian Lance Taylor
5482377ddc Clean up HAVE_MEMBER_TEMPLATE_SPECIFICATIONS somewhat. 2006-09-29 22:34:01 +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
274e99f9ae g++ 3.2.2 portability fixes. 2006-09-26 21:50:25 +00:00
Ian Lance Taylor
54dc642545 More section layout code. 2006-09-26 21:00:34 +00:00
Ian Lance Taylor
1564db8db6 More symbol resolution code. 2006-09-07 21:21:41 +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