x86_64_mov_to_lea5.o and x86_64_mov_to_lea6.o must be assembled with
-mrelax-relocations=yes since when assembler is configured with
--disable-x86-relax-relocations, R_X86_64_GOTPCRELX relocation won't
be generated. This linker optimization requires R_X86_64_GOTPCRELX
relocation.
This patch also removed the duplicated x86_64_overflow_pc32.o target.
* testsuite/Makefile.am (x86_64_mov_to_lea5.o): Pass
-mrelax-relocations=yes to $(TEST_AS).
(x86_64_mov_to_lea6.o): Likewise.
(x86_64_overflow_pc32.o): Remove duplicated target.
* testsuite/Makefile.in: Regenerated.
gold/ChangeLog:
* s390.cc (Target_s390::match_view_u): New helper method.
(Target_s390::do_is_call_to_non_split): New method.
(Target_s390::ss_code_st_r14): New const.
(Target_s390::ss_code_l_r14): New const.
(Target_s390::ss_code_bras_8): New const.
(Target_s390::ss_code_l_basr): New const.
(Target_s390::ss_code_a_basr): New const.
(Target_s390::ss_code_ear): New const.
(Target_s390::ss_code_c): New const.
(Target_s390::ss_code_larl): New const.
(Target_s390::ss_code_brasl): New const.
(Target_s390::ss_code_jg): New const.
(Target_s390::ss_code_jgl): New const.
(Target_s390::ss_match_mcount): New helper method.
(Target_s390::ss_match_l): New helper method.
(Target_s390::ss_match_ahi): New helper method.
(Target_s390::ss_match_alfi): New helper method.
(Target_s390::ss_match_cr): New helper method.
(Target_s390::do_calls_non_split): New method.
* testsuite/Makefile.am: Added new tests.
* testsuite/split_s390.sh: New test.
* testsuite/split_s390_1_a1.s: New test.
* testsuite/split_s390_1_a2.s: New test.
* testsuite/split_s390_1_n1.s: New test.
* testsuite/split_s390_1_n2.s: New test.
* testsuite/split_s390_1_z1.s: New test.
* testsuite/split_s390_1_z2.s: New test.
* testsuite/split_s390_1_z3.s: New test.
* testsuite/split_s390_1_z4.s: New test.
* testsuite/split_s390_2_ns.s: New test.
* testsuite/split_s390_2_s.s: New test.
* testsuite/split_s390x_1_a1.s: New test.
* testsuite/split_s390x_1_a2.s: New test.
* testsuite/split_s390x_1_n1.s: New test.
* testsuite/split_s390x_1_n2.s: New test.
* testsuite/split_s390x_1_z1.s: New test.
* testsuite/split_s390x_1_z2.s: New test.
* testsuite/split_s390x_1_z3.s: New test.
* testsuite/split_s390x_1_z4.s: New test.
* testsuite/split_s390x_2_ns.s: New test.
* testsuite/split_s390x_2_s.s: New test.
The problem here is that x32 is really using 64-bit addressing,
while pretending to be 32-bit. Even though the object file format
is 32-bit, we need to do the overflow checking with 64-bit
arithmetic (because that's what the hardware will be using).
This patch overrides the pcrela32_check functions in reloc.h
with target-specific versions that do 64-bit checking.
I've also updated the test case to use -Tdata instead of adding
a huge .space directive, to reduce the size of the .o files.
gold/
PR gold/19567
* reloc.h (Relocate_functions::Overflow_check): Add comments.
* x86_64.cc (X86_64_relocate_functions): New class.
(Target_x86_64::Relocate::relocate): Use the new class.
* testsuite/Makefile.am (x86_64_overflow_pc32): Add -Tdata option.
(x32_overflow_pc32): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/x32_overflow_pc32.sh: New script.
* testsuite/x86_64_overflow_pc32.s: Remove .space directive.
x86_64_mov_to_lea1.o is a 64-bit x86-64 object and x86_64_mov_to_lea2.o
is a 32-bit x86-64 object. x86_64_mov_to_lea11 should use
x86_64_mov_to_lea2.o and x86_64_mov_to_lea12 should use
x86_64_mov_to_lea1.o.
* testsuite/Makefile.am (x86_64_mov_to_lea11): Replace
x86_64_mov_to_lea1.o with x86_64_mov_to_lea2.o.
(x86_64_mov_to_lea12): Replace x86_64_mov_to_lea2.o with
x86_64_mov_to_lea1.o.
* testsuite/Makefile.in: Regenerated.
If a symbol is defined with ".symver foo,foo@VER", the assembler
creates two symbols in the object: one unversioned, and one with
the (non-default) version "VER". If foo is listed in a version
script, gold would then make the first of those symbols the
default version, and would ignore the second symbol as a
duplicate, without making it a non-default version. While this is
arguably reasonable behavior, it doesn't match Gnu ld behavior,
so this patch fixes that by allowing the second definition to
override the first by resetting the "default version" indication.
Several test cases from the Gnu ld testsuite also exposed another
related problem, where a symbol defined with ".symver foo,foo@",
placed into a shared library, is not handled properly by gold.
This patch also fixes that case, binding the symbol to the base
version.
gold/
PR gold/18703
* dynobj.cc (Versions::record_version): Handle symbol defined with
base version.
(Versions::symbol_section_contents): Likewise.
* symtab.h (Symbol::set_is_not_default): New class method.
(Symbol_table::resolve): Add is_default_version parameter.
(Symbol_table::should_override): Likewise.
* resolve.cc (Symbol_table::resolve): Add is_default_version parameter,
and pass to should_override. Adjust all callers and explicit
instantiations.
(Symbol_table::should_override): Add is_default_value parameter;
allow default version in a dynamic object to override existing
definition from same object.
* symtab.cc (Symbol_table::add_from_object): Handle case where same
symbol is defined as unversioned and non-default version in the same
object.
* testsuite/Makefile.am (ver_test_13): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/ver_test_4.cc: Add test for symbol with base version.
* testsuite/ver_test_4.sh: Likewise.
* testsuite/ver_test_13.c: New source file.
* testsuite/ver_test_13.script: New version script.
* testsuite/ver_test_13.sh: New test case.
GCC 5 will fold symbol address comparison, assuming each symbol has a
different address, which leads to abort. We should use separate
functions to compare symbol address.
PR gold/18663
* testsuite/Makefile.am (script_test_1_SOURCES): Set to
script_test_1a.cc script_test_1b.cc.
(script_test_11_r.o): Replace script_test_11.o with
script_test_11a.o script_test_11b.o.
(script_test_11.o): Removed.
(script_test_11a.o): New.
(script_test_11b.o): Likewise.
* testsuite/Makefile.in: Regenerated.
* testsuite/script_test_1.h: New file.
* testsuite/script_test_1b.cc: Likewise.
* testsuite/script_test_11.h: Likewise.
* testsuite/script_test_11b.c: Likewise.
* testsuite/script_test_1.cc: Renamed to ...
* testsuite/script_test_1a.cc: This.
Include "script_test_1.h".
(main): Call check_int and check_ptr.
* testsuite/script_test_11.c: Renamed to ...
* testsuite/script_test_11a.c: This.
Include "script_test_11.h".
(main): Call ptr_equal.
For relocatable link, we should clear the SHF_COMPRESSED flag bit from
input group section.
PR gold/18689
* layout.cc (Layout::layout): Clear the SHF_COMPRESSED flag bit
from input group section for relocatable link.
* testsuite/Makefile.am (check_SCRIPTS): Add pr18689.sh.
(check_DATA): Add pr18689.stdout.
(MOSTLYCLEANFILES): Add pr18689a.o pr18689b.o.
(pr18689.stdout): New rule.
(pr18689a.o): Likewise.
(pr18689b.o): Likewise.
(pr18689.o): Likewise.
* testsuite/pr18689.c: New file.
* testsuite/pr18689.sh: Likewise.
* testsuite/Makefile.in: Regenerated.
All programs in binutils+gdb git repo now support gABI compression
with the SHF_COMPRESSED bit. This patch makes the zlib-gabi option
as compression default for gas, gold, ld and objcopy, instead of the
zlib-gnu option whose outputs are incompatible with gABI.
binutils/
* objcopy.c (copy_file): Set BFD_COMPRESS_GABI if not
zlib-gnu.
* doc/binutils.texi: Change --compress-debug-sections and
--compress-debug-sections=zlib to zlib-gabi.
binutils/testsuite/
* binutils-all/compress.exp: Update.
gas/
* as.c (parse_args): Make --compress-debug-sections and
--compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* doc/as.texinfo: Change --compress-debug-sections and
--compress-debug-sections=zlib to zlib-gabi.
gold/
* compressed_output.cc (Output_compressed_section::set_final_data_size):
Make --compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* testsuite/Makefile.am (flagstest_compress_debug_sections.check):
Expect ".debug_.*" with the SHF_COMPRESSED bit, instead of
".zdebug_".
* testsuite/Makefile.in: Regenerated.
ld/
* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Make
--compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* ld.texinfo: Change --compress-debug-sections=zlib to zlib-gabi.
ld/testsuite/
* ld-elf/zlibbegin.rS: Updated to .debug_.* with the
SHF_COMPRESSED bit.
* ld-elf/zlibnormal.rS: Likewise.
This patch adds SHF_COMPRESSED section decompression to gold.
PR gold/18321
* compressed_output.h (decompress_input_section): Add arguments
for ELF class, big endian and sh_flags.
* compressed_output.cc (decompress_input_section): Likewise.
Support the SHF_COMPRESSED section.
* dynobj.h (Dynobj): Add elfsize and is_big_endian member
functions.
* plugin.h (Pluginobj): Likewise.
* layout.cc (Layout::get_output_section_flags): Also clear the
SHF_COMPRESSED bit.
* object.h (Compressed_section_info): Add flag to store sh_flags.
(Object): Add pure virtual elfsize and is_big_endian member
functions.
* object.cc (need_decompressed_section): Don't skip the ".zdebug"
prefix here.
(build_compressed_section_map): Check SHF_COMPRESSED for
uncompressed size. Store sh_flags in Compressed_section_info.
Pass size, big_endian and sh_flags to decompress_input_section.
Skip the ".debug"/".zdebug" prefix when passing section name to
need_decompressed_section.
(Sized_relobj_file<size, big_endian>::do_find_special_section):
Don't check ".zdebug_*" sections.
(Object::decompressed_section_contents): Pass ELF class, big
endian and sh_flags to decompress_input_section.
* reloc.cc (Sized_relobj_file<size, big_endian>::write_sections):
Likewise.
* testsuite/Makefile.am (check_DATA): Add
debug_msg_cdebug_gabi.err and gdb_index_test_2_gabi.stdout.
(MOSTLYCLEANFILES): Add debug_msg_cdebug_gabi.err and
gdb_index_test_2_gabi.stdout.
(debug_msg_cdebug_gabi.o): New.
(odr_violation1_cdebug_gabi.o): Likewise.
(odr_violation2_cdebug_gabi.o): Likewise.
(debug_msg_cdebug_gabi.err): Likewise.
(check_SCRIPTS): Add gdb_index_test_2_gabi.sh.
(gdb_index_test_cdebug_gabi.o): Likewise.
(gdb_index_test_2_gabi): Likewise.
(gdb_index_test_2_gabi.stdout): Likewise.
* testsuite/gdb_index_test_2_gabi.sh: New file.
* testsuite/Makefile.in: Regenerated.
This patch adds -O0 to gold script_test_12 test, hoping that compiler
won't change the order of globel variables that the test assumes.
Changelog:
testsuite/Makefile.am: Add -O0 to compile script_test_12 test.
testsuite/Makefile.in: Regenerate.
In PR 15370, it is noted that gold does not distinguish between
"*(.foo .bar)" and "*(.foo) *(.bar)" in linker scripts. In both
cases, gold groups all .foo sections together, followed by all
.bar sections, whereas in the first case, it should collect all
.foo and .bar sections in the order seen.
If you add sort specs, the Gnu linker has some bizarre corner
cases that I do not try to replicate. In particular,
"*(SORT_BY_NAME(.foo) SORT_BY_NAME(.bar))" does the same thing
as "*(.foo) *(.bar)". But if you apply a sort spec
to just one of several patterns, say, "*(SORT_BY_NAME(.foo) .bar)",
the Gnu linker will collect any .bar section it sees before the
first .foo, then all .foo sections, then all remaining .bar
sections. With this patch, if any of the input patterns have a
sort spec, gold will group them all as it did before; e.g.,
all .foo sections followed by all .bar sections.
2015-06-03 Cary Coutant <ccoutant@gmail.com>
gold/
PR gold/15370
* script-sections.cc
(Output_section_element_input::set_section_addresses): When there
are several patterns with no sort spec, put all sections in the same
bin.
* testsuite/Makefile.am (script_test_12): New testcase.
(script_test_12i): New testcase.
* testsuite/Makefile.in: Regenerate.
* testsuite/script_test_12.t: New test linker script.
* testsuite/script_test_12i.t: New test linker script.
* testsuite/script_test_12a.c: New test source file.
* testsuite/script_test_12b.c: New test source file.
When --build-id=tree is selected, gold would schedule a set of
tasks to run to compute md5 hashes in parallel on chunks of the
file. The scheduling was done before the
Write_after_input_sections_task ran, so if we are compressing
debug sections, the output file will change size and be remapped
to a new address, sometimes causing the build id computation to
crash, but even when it doesn't crash, it wouldn't include the
debug information in the hash computation.
This patch delays the scheduling of the md5 tasks until after
Write_after_input_sections_task.
gold/
PR gold/17819
* gold.cc (queue_final_tasks): When --build-id=tree, queue a
separate task to schedule the build id computation.
* layout.cc (Hash_task::Hash_task): Remove build_id_blocker,
add Output_file and offset.
(Hash_task::run): Get and release the input views.
(Hash_task::is_runnable): Always return NULL (always runnable).
(Layout::queue_build_id_tasks): Remove.
(Layout::write_build_id): Add array_of_hashes and size_of_hashes
parameters; use them instead of class members.
(Build_id_task_runner::run): New function.
(Close_task_runner::run): Pass array_of_hashes and size_of_hashes
to write_build_id.
* layout.h (Layout::queue_build_id_tasks): Remove.
(Layout::write_build_id): Add array_of_hashes and size_of_hashes
parameters.
(Layout::array_of_hashes_): Remove.
(Layout::size_of_array_of_hashes_): Remove.
(Layout::input_view_): Remove.
(Build_id_task_runner): New class.
(Close_task_runner::Close_task_runner): Add array_of_hashes and
size_of_hashes parameters.
(Close_task_runner::array_of_hashes_): New data member.
(Close_task_runner::size_of_hashes_): New data member.
* testsuite/Makefile.am
(flagstest_compress_debug_sections_and_build_id_tree): New test.
* testsuite/Makefile.in: Regenerate.
This patch adds option --weak-unresolved-symbols to treat unresolved symbols as
weak references. This is helpful when we want the link to succeed with unresolved
symbols and the dynamic loader to not complain at run-time. Option
--warn-unresolved-symbols lets the link succeed but could fail at run-time with
unresolved symbol warnings especially when the unresolved symbols have GOT entries
and dynamic relocations against them, like when -fPIE is used.
This patch fixes Symbol::final_value_is_known so that a defined TLS symbol
in a PIE link is treated as having a known final value, thus allowing
GD->LE TLS optimization, eliminating an unnecessary GOT entry and dynamic
relocation.
gold/
* symtab.cc (Symbol::final_value_is_known): Check for TLS symbol
in a PIE link.
* testsuite/Makefile.am (tls_pie_test.sh): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/tls_pie_test.sh: New.
This patch fixes INCLUDE directives in script files, so that when
an INCLUDE appears inside a sections block, section commands block,
or memory def block, the contents are parsed in the appropriate
context.
gold/
PR gold/18048
* script-c.h (script_include_directive): Add first_token parameter.
* script.cc (script_include_directive): Add first_token parameter, and
pass it to read_script_file.
* yyscript.y (PARSING_SECTIONS_BLOCK, PARSING_SECTION_CMDS)
(PARSING_MEMORY_DEF): New tokens.
(top): Add new productions for INCLUDE files.
(file_cmd): Replace file_or_sections_cmd with copy of its productions.
Pass PARSING_LINKER_SCRIPT to script_include_directive.
(section_block_cmd): Likewise; pass PARSING_SECTIONS_BLOCK.
(section_cmd): Pass PARSING_SECTION_CMDS.
(file_or_sections_cmd): Remove.
(memory_def): Pass PARSING_MEMORY_DEF.
* testsuite/Makefile.am (memory_test_2): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/memory_test_inc.t: New script file.
* testsuite/memory_test_inc_1.t.src: New script file.
* testsuite/memory_test_inc_2.t.src: New script file.
* testsuite/memory_test_inc_3.t.src: New script file.
Newer version of GCC pass -z relro to the linker, but incremental linking
does not support relro. This patch adds a check to complain about the
conflict, and changes the testsuite to pass -z norelro to the incremental
tests.
2015-03-11 Cary Coutant <ccoutant@google.com>
gold/
* options.cc (General_options::finalize): Don't allow -z relro
with incremental linking.
* testsuite/Makefile.am (incremental_test): Add -z norelro.
(incremental_test_2): Likewise.
(incremental_test_3): Likewise.
(incremental_test_4): Likewise.
(incremental_test_5): Likewise.
(incremental_test_6): Likewise.
(incremental_copy_test): Likewise.
(incremental_common_test_1): Likewise.
(incremental_comdat_test_1): Likewise.
* testsuite/Makefile.in: Regenerate.
In PR 13577, the complaint was that -Bsymbolic was overriding the binding
behavior for symbols listed in the --dynamic-list by setting the DT_SYMBOLIC
tag in the dynamic table. In reading the Gnu ld manual, I decided that
--dynamic-list should be mutually exclusive of -Bsymbolic, and modified
gold so that --dynamic-list would treat symbols listed as preemptible,
and all other symbols as internally bound. I was wrong.
PR 16992 shows that with --dynamic-list (and not -Bsymbolic), a symbol
not listed in the dynamic list is being internally bound within the
shared library, but because it's still in the dynamic symbol table, we
expose it to a COPY relocation, and things go really bad from there.
(I can reproduce the same failure, simply by turning on -Bsymbolic-functions
with the Gnu linker. Even though the symbol is bound internally, it's
still exported to the dynamic symbol table, and is exposed to a COPY
relocation.)
I've backed out part of the fix for PR 13577, and -Bsymbolic (or
-Bsymbolic-functions) can now be used with --dynamic-list, but if the
two are used together, we do not set DT_SYMBOLIC or DF_SYMBOLIC
(this matches Gnu ld behavior). We now treat symbols listed in the
dynamic list as premptible, but we do not automatically treat symbols
not listed there as non-premptible.
gold/
PR gold/13577
PR gold/16992
* layout.cc (Layout::finish_dynamic_section): Don't set DT_SYMBOLIC or
DF_SYMBOLIC if --dynamic-list option is used.
* options.cc (General_options::finalize): --dynamic-list is not
mutually exclusive with -Bsymbolic.
* symtab.h (Symbol::is_preemptible): Don't exclude dynamic symbols not
listed in --dynamic-list.
* testsuite/Makefile.am (dynamic_list_lib2.so): Add
-Bsymbolic-functions.
* testsuite/Makefile.in: Regenerate.
There are
two_file_shared_2_pic_1_test_LDADD = two_file_test_2_pic.o two_file_shared_1.so
There should be two_file_shared_1.so, not two_file_shared_2.so in
two_file_shared_2_pic_1_test_DEPENDENCIES.
* testsuite/Makefile.am (two_file_shared_2_pic_1_test_DEPENDENCIES):
Replace two_file_shared_2.so with two_file_shared_1.so.
* testsuite/Makefile.in: Regenerated.
When an LTO linker plugin claims an external member of a thin archive, gold
does not properly unlock the file and make its file descriptor available for
reuse. This patch fixes the problem by modifying Archive::include_member to
unlock the object file via an RAII class instance, ensuring that it will be
unlocked no matter what path is taken through the function.
gold/
PR gold/15660
* archive.cc (Thin_archive_object_unlocker): New class.
(Archive::include_member): Unlock external members of thin archives.
* testsuite/Makefile.am (plugin_test_1): Rename .syms files.
(plugin_test_2): Likewise.
(plugin_test_3): Likewise.
(plugin_test_4): Likewise.
(plugin_test_5): Likewise.
(plugin_test_6): Likewise.
(plugin_test_7): Likewise.
(plugin_test_8): Likewise.
(plugin_test_9): Likewise.
(plugin_test_10): Likewise.
(plugin_test_11): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/plugin_test.c (claim_file_hook): Check for parallel .syms
file to decide whether to claim file.
(all_symbols_read_hook): Likewise.
* testsuite/plugin_test_1.sh: Adjust expected output.
* testsuite/plugin_test_2.sh: Likewise.
* testsuite/plugin_test_3.sh: Likewise.
* testsuite/plugin_test_6.sh: Likewise.
* testsuite/plugin_test_tls.sh: Likewise.
* testsuite/plugin_test_11.sh: New testcase.
2014-09-18 Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
* testsuite/Makefile.am (plugin_test_10): New test.
* testsuite/Makefile.in: Regenerate
* testsuite/plugin_common_test_2.c (c1): Align to 8.
* testsuite/plugin_test_10.sh: New file.
Alan Modra committed a patch to Gnu ld to fix a problem encountered on
PPC where the --defsym option wasn't copying the st_other bits to the
newly-defined symbol.
https://sourceware.org/ml/binutils/2014-07/msg00094.html
Gold has the same problem, and additionally wasn't copying the symbol type.
This patch fixes both problems, by copying the symbol type, visibility, and
the remaining st_other bits to the new symbol for --defsym=sym1=sym2
assignments.
gold/
* expression.cc (struct Expression::Expression_eval_info): Add
new fields type_pointer, vis_pointer, and nonvis_pointer.
(Expression::eval_maybe_dot): Add type_pointer, vis_pointer, and
nonvis_pointer parameters. Adjust all calls.
(Symbol_expression::value): Update type, visibility, and nonvis bits
in caller.
* script.cc (Symbol_assignment::sized_finalize): Update type,
visibility, and remaining st_other bits for new symbol.
* script.h: (Expression::eval_maybe_dot): Add type_pointer,
vis_pointer, and nonvis_pointer parameters.
* symtab.h (Symbol::set_type): New method.
* testsuite/Makefile.am (defsym_test): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/defsym_test.c: New file.
* testsuite/defsym_test.sh: New file.
check script to look for the right binding.
gold/
* testsuite/Makefile.am (ehdr_start_test_4): Fix typo in -B option.
* testsuite/Makefile.in: Regenerate.
* testsuite/ehdr_start_test_4.sh: Look for "U" instead of "w".
to access a global as it expects a GOTPCREL relocation. This is really not
necessary as the linker could use a copy relocation to get around it. This
patch enables copy relocations with pie.
Context:
This is useful because currently the GCC compiler with option -fpie makes
every extern global access go through the GOT. That is because the compiler
cannot tell if a global will end up being defined in the executable or not
and is conservative. This ends up hurting performance when the binary is linked
as mostly static where most of the globals do end up being defined in the
executable. By allowing copy relocs with fPIE, the compiler need not generate
a GOTPCREL(GOT access) for any global access. It can safely assume that all
globals will be defined in the executable and generate a PC-relative access
instead. Gold can then create a copy reloc for only the undefined globals.
gold/
* symtab.h (may_need_copy_reloc): Remove check for position independent
code.
* x86_64.cc (Target_x86_64<size>::Scan::global): Add check for no
position independence before pc absolute may_need_copy_reloc call.
Add check for executable output befor pc relative may_need_copy_reloc
call.
* i386.cc: Ditto.
* arm.cc: Ditto.
* sparc.cc: Ditto.
* tilegx.cc: Ditto.
* powerpc.cc: Add check for no position independence before
may_need_copy_reloc calls.
* testsuite/pie_copyrelocs_test.cc: New file.
* testsuite/pie_copyrelocs_shared_test.cc: New file.
* Makefile.am (pie_copyrelocs_test): New test.
* Makefile.in: Regenerate.
GCC 4.8 now adds linker plugin options by default, which conflict with the
--incremental tests in the testsuite. This patch checks whether the compiler
supports the -fno-use-linker-plugin option, and adds it to all link
commands.
2014-04-02 Cary Coutant <ccoutant@google.com>
* configure.ac (HAVE_PUBNAMES): Use C instead of C++.
(HAVE_NO_USE_LINKER_PLUGIN): Check for -fno-use-linker-plugin.
* configure: Regenerate.
* testsuite/Makefile.am (OPT_NO_PLUGINS): New macro for
-fno-use-linker-plugin.
(LINK1, CXXLINK1): Add it to the link command.
* testsuite/Makefile.in: Regenerate.
When the linker has a weak undefined symbol, it normally does not
select an archive library member just to satisfy the reference.
If the same symbol is also listed in a -u option, however, we
should select the archive library member. This patch reorders
the code in Library_base::should_include_member so that the
additional checks are performed in the case of a weak undef.
gold/
2014-02-06 Cary Coutant <ccoutant@google.com>
* archive.cc (Library_base::should_include_member): Reorder
code to check for -u option if a weak undef has already been seen.
* testsuite/Makefile.am (weak_undef_test_2): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/weak_undef_file3.cc: New file.
* testsuite/weak_undef_file4.cc: New file.
* testsuite/weak_undef_test_2.cc: New file.
PR gold/13577 complains that even though symbols listed in
the --dynamic-list script are exported, they are still bound symbolically
if -Bsymbolic is also used. There are two underlying problems here.
First, -Bsymbolic should be overridden by --dynamic-list, since the
dynamic list provides an explicit list of symbols that are not bound
within the library, and if we go ahead and set DT_SYMBOLIC, then the
dynamic loader will bind it within the library anyway. Second, gold
did not properly identify the symbols listed in the file as preemptible.
PR gold/16530 complains that symbols listed in the --dynamic-list script
can still be garbage collected. I've fixed this by checking the symbols
as they're added to the symbol table. (Unlike the --export-dynamic-symbol
option, we can't iterate over the list, because the --dynamic-list script
can have wildcards in it.)
gold/
2014-02-05 Cary Coutant <ccoutant@google.com>
PR gold/13577
* options.cc (General_options::parse_dynamic_list):
Set have_dynamic_list_.
(General_options::General_options): Initialize have_dynamic_list_.
(General_options::finalize): Turn off -Bsymbolic and
-Bsymbolic-functions if --dynamic-list provided.
* options.h (General_options::have_dynamic_list): New function.
(General_options::have_dynamic_list_): New data member.
* symtab.h (Symbol::is_preemptible): Handle --dynamic-list
correctly.
PR gold/16530
* symtab.cc (Symbol_table::add_from_relobj): If symbol is named
in --dynamic-list, mark it.
* testsuite/Makefile.am (gc_dynamic_list_test.sh): New test case.
(dynamic_list_2): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/dynamic_list_2.cc: New file.
* testsuite/dynamic_list_2.t: New file.
* testsuite/dynamic_list_lib1.cc: New file.
* testsuite/dynamic_list_lib2.cc: New file.
* testsuite/gc_dynamic_list_test.c: New file.
* testsuite/gc_dynamic_list_test.sh: New file.
* testsuite/gc_dynamic_list_test.t: New file.
* resolve.cc (Symbol::override_base): Don't override st_type
from plugin placeholder symbols.
(Symbol_table::resolve): Likewise.
(Symbol_table::should_override): Don't complain about TLS mismatch
if the TO symbol is a plugin placeholder.
* testsuite/Makefile.am (plugin_test_tls): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/plugin_test_tls.sh: New test script.
* testsuite/two_file_test_2_tls.cc: New test source.
* testsuite/two_file_test_tls.cc: New test source.
gold/
* layout.cc (Layout::set_segment_offsets): Taking care of the case when
the maximum segment alignment is larger than the page size.
* testsuite/Makefile.am (large_symbol_alignment): Test that Gold
correctly aligns the symbols with large alignemnt.
* testsuite/Makefile.in: Regenerate.
* testsuite/large_symbol_alignment.cc: New file.
Sriraman Tallam <tmsriram@google.com>
* options.h (sort_section): New option.
* output.h (Input_section_sort_section_prefix_special_ordering_compare):
Rename from Input_section_sort_section_name_special_ordering_compare.
(Input_section_sort_section_name_compare): New struct.
* output.cc (Output_section::Input_section_sort_section_name_compare::
operator()): New function.
(Output_section::sort_attached_input_sections): Use new sort function
for .text if --sort-section=name is specified.
* layout.cc (Layout::make_output_section):
Add sorting by name when --sort-section=name is specified.
* testsuite/Makefile.am (text_section_grouping): Test option
--sort-section=name.
* testsuite/Makefile.in: Regenerate.
* testsuite/section_sorting_name.cc: New file.
* testsuite/section_sorting_name.sh: New file.
* symtab.h (Symbol::is_cxx_vtable): New function.
* target-reloc.h (relocate_section): Check for vtable symbol.
* testsuite/Makefile.am (missing_key_func.sh): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/missing_key_func.cc: New test source.
* testsuite/missing_key_func.sh: New test script.
