Some Output_data_got methods already have support for addends, but
were implemented as separate methods. This removes unnecessary code
duplication.
Relobj::local_has_got_offset and others there get a similar treatment.
Comments are removed since it should be obvious without a comment, and
the existing comments are not precisely what the code does. For
example, a local_has_got_offset call without an addend does not return
whether the local symbol has *a* GOT offset of type GOT_TYPE, it
returns whether there is a GOT entry of type GOT_TYPE for the symbol
with addend of zero.
PR 28192
* output.h (Output_data_got::add_local): Make addend optional.
(Output_data_got::add_local_with_rel): Likewise.
(Output_data_got::add_local_pair_with_rel): Likewise.
* output.cc (Output_data_got::add_local): Delete overload
without addend.
(Output_data_got::add_local_with_rel): Likewise.
(Output_data_got::add_local_pair_with_rel): Likewise.
* object.h (Relobj::local_has_got_offset): Make addend optional.
Delete overload without addend later. Update comment.
(Relobj::local_got_offset): Likewise.
(Relobj::set_local_got_offset): Likewise.
This patch removes the addend from Local_got_entry_key, which is
unnecessary now that Got_offset_list has an addend. Note that it
might be advantageous to keep the addend in Local_got_entry_key when
linking objects containing a large number of section_sym+addend@got
relocations. I opted to save some memory by removing the field but
left the class there in case we might need to restore {sym,addend}
lookup. That's also why this change is split out from the
Got_offset_list change.
PR 28192
* object.h (Local_got_entry_key): Delete addend_ field.
Adjust constructor and methods to suit.
* object.cc (Sized_relobj::do_for_all_local_got_entries):
Update key.
This is the first in a series of patches aimed at supporting GOT
entries against symbol plus addend generally for PowerPC64 rather than
just section symbol plus addend as gold has currently.
This patch adds an addend field to Got_offset_list, so that both local
and global symbols can have GOT entries with addend.
PR 28192
* object.h (Got_offset_list): Add addend_ field, init in both
constructors. Adjust all accessors to suit.
(Sized_relobj::do_local_has_got_offset): Adjust to suit.
(Sized_relobj::do_local_got_offset): Likewise.
(Sized_relobj::do_set_local_got_offset): Likewise.
* symtab.h (Symbol::has_got_offset): Add optional addend param.
(Symbol::got_offset, Symbol::set_got_offset): Likewise.
* incremental.cc (Local_got_offset_visitor::visit): Add unused
uint64_t parameter with FIXME.
(Global_got_offset_visitor::visit): Add unused uint64_t parameter.
to match GNU ld.
gold/
* archive.cc (Library_base::should_include_member): Don't handle
--export-dynamic-symbol.
* symtab.cc (Symbol_table::do_add_undefined_symbols_from_command_line):
Likewise.
Fixes a silly mistake in calculating the address of -Os out-of-line
register save/restore function copies. Copies of these linker defined
functions are added to stub sections when the original (in
target->savres_section) can't be reached.
* powerpc.cc (Target_powerpc::Relocate::relocate): Correct address
calculation of out-of-line save/restore function copies.
As discussed previously, a.out support is now quite deprecated, and in
some cases removed, in both Binutils itself and NetBSD, so this legacy
default makes little sense. `netbsdelf*` and `netbsdaout*` still work
allowing the user to be explicit about there choice. Additionally, the
configure script warns about the change as Nick Clifton requested.
One possible concern was the status of NetBSD on NS32K, where only a.out
was supported. But per [1] NetBSD has removed support, and if it were to
come back, it would be with ELF. The binutils implementation is
therefore marked obsolete, per the instructions in the last message.
With that patch and this one applied, I have confirmed the following:
--target=i686-unknown-netbsd
--target=i686-unknown-netbsdelf
builds completely
--target=i686-unknown-netbsdaout
properly fails because target is deprecated.
--target=vax-unknown-netbsdaout builds completely except for gas, where
the target is deprecated.
[1]: https://mail-index.netbsd.org/tech-toolchain/2021/07/19/msg004025.html
---
bfd/config.bfd | 43 +++++++++++++--------
bfd/configure.ac | 5 +--
binutils/testsuite/binutils-all/nm.exp | 2 +-
binutils/testsuite/lib/binutils-common.exp | 7 +---
config/picflag.m4 | 4 +-
gas/configure.tgt | 9 +++--
gas/testsuite/gas/arm/blx-bl-convert.d | 2 +-
gas/testsuite/gas/arm/blx-local-thumb.d | 2 +-
gas/testsuite/gas/sh/basic.exp | 2 +-
gdb/configure.host | 34 +++++++----------
gdb/configure.tgt | 2 +-
gdb/testsuite/gdb.asm/asm-source.exp | 6 +--
intl/configure | 2 +-
ld/configure.tgt | 44 +++++++++++-----------
ld/testsuite/ld-arm/arm-elf.exp | 4 +-
ld/testsuite/ld-elf/elf.exp | 2 +-
ld/testsuite/ld-elf/shared.exp | 4 +-
libiberty/configure | 4 +-
Don't use nullptr, it requires -std=c++11 on versions of gcc prior to
6.1. It would be possible to arrange to pass -std=c++11 automatically
when required (top level configure does that for gcc builds) but that
seems overkill and since we're not up-to-date on the top level config
files would mean someone would need to sync those over.
PR gold/27815
* gc.h (gc_process_relocs): Use cast in Section_id constructor.
...gold/gc.h:250:37: error: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second: [-Werror]
250 | (*secvec).push_back(Section_id(NULL, 0));
| ^~~~~~~~~~~~~~~~~~~
PR gold/27815
* gc.h (gc_process_relocs): Use nullptr in Section_id constructor.
gold/
PR 27834
* options.h (General_options): Make -Bsymbolic and
-Bsymbolic-functions special and adjust the help messages. Add
enum Bsymbolic_kind and -Bno-symbolic.
* options.cc (General_options): Define parse_Bno_symbolic,
parse_Bsymbolic_functions, and parse_Bsymbolic.
This patch supports linking powerpc64 glibc with gold, specifically
the __tls_get_addr call in elf/dl-sym.c. That call lacks marker
relocations tying it to the arg setup instructions, but the arg setup
insns are also contructed lacking the usual relocations on a Global
Dynamic TLS code sequence. So there is no chance that anything in
that sequence might be wrongly edited by the linker.
In fact, the aim of linking glibc could have been supported by simply
omitting the error whenever TLS optimisation is disabled, as it is
when linking a shared library. The patch goes further than that,
disabling TLS GD and LD sequence optimisation on a per-object basis
for object files lacking marker relocs.
PR gold/27625
* powerpc.cc (Powerpc_relobj): Add no_tls_marker_, tls_marker_,
and tls_opt_error_ variables and accessors.
(Target_powerpc::Scan::local, global): Call set_tls_marker and
set_no_tls_marker for GD and LD code sequence relocations.
(Target_powerpc::Relocate::relocate): Downgrade the "lacks marker
reloc" error to a warning when safe to do so, and omit the error
entirely if not optimising TLS sequences. Do not optimise GD and
LD sequences for objects lacking marker relocs.
(Target_powerpc::relocate_relocs): Heed no_tls_marker here too.
gold/
PR gold/pr23870
* testsuite/aarch64_pr23870_bar.c: Return a magic value.
* testsuite/aarch64_pr23870_foo.c: Check the magic value and return
success or failure.
The .debug_line secton in DWARF5 has a byte for address size and a byte
for segment selector after DWARF version. Skip them for DWARF5.
PR gold/27246
* dwarf_reader.cc (Sized_dwarf_line_info::read_header_prolog):
Skip address size and segment selector for DWARF5.
A testcase with only ifuncs can result in no plt section (ifunc plt
entries might instead be in iplt), which means we can get to this code
without a static link.
PR 27203
* powerpc.cc (do_plt_fde_location): Remove doing_static_link
assertion.
On Fedora 33 x86-64 with glibc 2.32-3, ifuncmain6pie failed with:
./ifuncmain6pie: IFUNC symbol 'foo' referenced in './ifuncmod6.so' is defined in the executable and creates an unsatisfiable circular dependency.
FAIL ifuncmain6pie (exit status: 127)
Remove non-JUMP_SLOT relocations against foo in ifuncmod6.so, which
trigger the circular IFUNC dependency.
* testsuite/ifuncmain6pie.c: Remove non-JUMP_SLOT relocations
against foo in ifuncmod6.so.
* testsuite/ifuncmod6.c: Likewise.
This fixes a thinko in commit fa40fbe484. st_other global entry bits
are relevant only for 64-bit ELFv2. PowerPC gold leaves local sym
vector of st_other bits as NULL for 32-bit, hence the segfault.
PR 27140
* powerpc.cc (Target_powerpc::Branch_info::make_stub): Only access
object->st_other() when 64-bit.
(Stub_table::add_long_branch_entry): Ignore "other" when 32-bit.
Move sym declaration just before use to avoid -Wmaybe-uninitialized
warning from GCC 11.
PR gold/27097
* incremental.cc (Sized_relobj_incr::do_add_symbols): Move sym
declaration just before use.
(Sized_incr_dynobj::do_add_symbols): Likewise.
* plugin.cc (Sized_pluginobj::do_add_symbols): Likewise.
Add accessor methods to elfcpp::Ehdr class for EI_OSABI and EI_ABIVERSION;
use those to simplify initialization of Osabi class and eliminate the need
to template the class.
elfcpp/
* elfcpp.h (class Ehdr): Add get_ei_osabi and get_ei_abiversion methods.
gold/
* dwp.cc (class Dwo_file): Use new Ehdr::get_ei_osabi and
get_ei_abiversion methods.
* incremental.cc (make_sized_incremental_binary): Likewise.
* object.cc (Sized_relobj_file::Sized_relobj_file): Likewise.
(make_elf_sized_object): Likewise.
* object.h (class Osabi): Make the class untemplated.
During an incremental link, we should simply ignore the Gnu properties
sections. We were not handling them properly -- failing to process the
properties from the base file. While that could be fixed, the property
sections are meant for deployed binaries, and incremental linking is
for development, so keeping the properties sections just adds to the
likelihood of forcing a full link sooner.
gold/
PR gold/23539
* object.cc (Sized_relobj_file::layout_gnu_property_section): Ignore
Gnu properties during incremental links.
When processing the incremental update, incoming .rodata merge sections
do not match the corresponding section in the base file, because the
SHF_MERGE flag had not been masked out of the latter.
gold/
PR gold/24123
* layout.cc (Layout::init_fixed_output_section): Mask out flags that
should be ignored when matching sections.
I'm unsure why this is deserving of a warning. Not writing the most
efficient code surely can't be a real problem, but that is what
https://gcc.gnu.org/bugzilla//show_bug.cgi?id=88059#c1 seems to say.
plugin.cc:528:10: error: 'char* strncpy(char*, const char*, size_t)' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
528 | strncpy(tempdir, dir_template, len);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
plugin.cc:526:22: note: length computed here
526 | size_t len = strlen(dir_template) + 1;
| ~~~~~~^~~~~~~~~~~~~~
* plugin.cc (Plugin_recorder::init): Replace strncpy with memcpy.
When relocating debug sections, get the section index for the linkonce
section. Since symbols referenced in debugging sections can be defined
a single comdat section with a different section name, also check the
single comdat section.
PR gold/26937
* object.cc (Sized_relobj_file::map_to_kept_section): Get the
section index for linkonce section. Also check the single
comdat section.
* testsuite/Makefile.am (check_SCRIPTS): Add pr26936.sh.
(check_DATA): Add pr26936a.stdout and pr26936b.stdout.
(MOSTLYCLEANFILES): Add pr26936a and pr26936b.
(pr26936a.stdout): New target.
(pr26936a): Likewise.
(pr26936b.stdout): Likewise.
(pr26936b): Likewise.
(pr26936a.o): Likewise.
(pr26936b.o): Likewise.
(pr26936c.o): Likewise.
(pr26936d.o): Likewise.
* testsuite/Makefile.in: Regenerated.
* testsuite/pr26936.sh: New file.
* testsuite/pr26936a.s: Likewise.
* testsuite/pr26936b.s: Likewise.
* testsuite/pr26936c.s: Likewise.
* testsuite/pr26936d.s: Likewise.
incremental-dump wants to instantiate Target_powerpc without options
being set up. This patch fixes
internal error in options, at gold/parameters.h:92
* powerpc.cc (Target_powerpc::no_tprel_opt_): Rename from tprel_opt_.
Init to false.
(Target_powerpc::tprel_opt): Test parameters->options().tls_optimize().
(Target_powerpc::set_tprel_opt): Delete.
(Target_powerpc::set_no_tprel_opt): New function. Update all uses
of set_tprel_opt.
