Make the MIPS/IRIX naming of local section symbols consistent between
files produced by generic ELF code and ELF linker code, complementing
commit 174fd7f95561 ("New bfd elf hook: force naming of local section
symbols"), <https://sourceware.org/ml/binutils/2004-02/msg00072.html>.
Local section symbols have no names in the standard ELF gABI, however
the lack of a name causes problems with IRIX's MIPSpro linker. To work
around the issue we give them names, however we do that in generic ELF
code only, based on what the `elf_backend_name_local_section_symbols'
hook returns if present. That makes objects created by GAS or `objdump'
work correctly, however not ones created by `ld -r'. That would not
normally cause issues with IRIX systems using GAS and `objdump' only
with the MIPSpro linker, however if GNU LD was used for whatever reason
in producing objects later fed to IRIX's MIPSpro linker, then things
would break.
Modify ELF linker code accordingly then, using the same hook. Adjust
the `ld-elf/64ksec-r' test accordingly so that it also accepts a section
symbol with a name.
Also modify the hook itself so that only actual ET_REL objects have
names assigned to local section symbols. Other kinds of ELF files are
not ever supposed to be relocated with the MIPSpro linker, so we can
afford producing more standard output.
Add suitable GAS, LD and `objcopy' test cases to the relevant testsuites
to keep these tools consistently verified. This change also fixes:
FAIL: objcopy executable (pr25662)
across MIPS targets using the IRIX compatibility mode.
bfd/
* elflink.c (bfd_elf_final_link): Give local symbols a name if
so requested.
* elfxx-mips.c (_bfd_mips_elf_name_local_section_symbols): Only
return TRUE if making ET_REL output.
binutils/
* testsuite/binutils-all/mips/global-local-symtab-sort-o32.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-sort-o32t.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-sort-n32.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-sort-n32t.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-sort-n64.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-sort-n64t.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-final-o32.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-final-n32.d:
New test.
* testsuite/binutils-all/mips/global-local-symtab-final-n64.d:
New test.
* testsuite/binutils-all/mips/mips.exp: Run the new tests.
gas/
* testsuite/gas/mips/global-local-symtab-sort-o32.d: New test.
* testsuite/gas/mips/global-local-symtab-sort-o32t.d: New test.
* testsuite/gas/mips/global-local-symtab-sort-n32.d: New test.
* testsuite/gas/mips/global-local-symtab-sort-n32t.d: New test.
* testsuite/gas/mips/global-local-symtab-sort-n64.d: New test.
* testsuite/gas/mips/global-local-symtab-sort-n64t.d: New test.
* testsuite/gas/mips/mips.exp: Run the new tests.
ld/
* testsuite/ld-elf/sec64k.exp: Also accept a section symbol with
a name.
* testsuite/ld-mips-elf/global-local-symtab-sort-o32.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-sort-o32t.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-sort-n32.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-sort-n32t.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-sort-n64.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-sort-n64t.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-final-o32.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-final-n32.d: New
test.
* testsuite/ld-mips-elf/global-local-symtab-final-n64.d: New
test.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
Correct ELF linker code so as to set the `sh_info' value of the static
symbol table section according to the section symbols vs other symbols
split where required by the selection of the IRIX compatibility mode for
MIPS target. Add a `elf_backend_elfsym_local_is_section' hook for that
purpose, returning TRUE if it is only STB_LOCAL/STT_SECTION symbols that
are to be considered local for the purpose of this split rather than all
STB_LOCAL symbols.
We do it already in generic ELF code, and have done it since 1993, with
the `elf_backend_sym_is_global' hook, affecting GAS and `objcopy', so
these tools produce correct ELF output in the IRIX compatibility mode,
however if such output is fed as input to `ld -r', then the linker's
output is no longer valid for that mode. The relevant changes to
generic ELF code are:
commit 062189c6eab72c7ba1bab1cf30fdb27d67a7d668
Author: Ian Lance Taylor <ian@airs.com>
Date: Thu Nov 18 17:12:47 1993 +0000
and:
commit 6e07e54f1b347f885cc6c021c3fd912c79bdaf55
Author: Ian Lance Taylor <ian@airs.com>
Date: Thu Jan 6 20:01:42 1994 +0000
(split across two GIT commits likely due to repository conversion
peculiarities).
The `elf_backend_sym_is_global' hook however operates on BFD rather than
ELF symbols, making it unsuitable for the ELF linker as the linker does
not convert any symbol tables processed into the BFD format. Converting
the hook to operate on ELF symbols would in principle be possible, but
it would still require a considerable rewrite of `bfd_elf_final_link' to
adapt to the interface.
Therefore, especially given that no new use for the IRIX compatibility
mode is expected, minimize changes made to the ELF linker code and just
add an entirely new hook, and wire it in the o32 and n32 MIPS backends
accordingly; the n64 backend never uses the IRIX compatibility mode.
Since we have no coverage here at all add suitable GAS, LD and `objcopy'
test cases to the relevant testsuites to keep these tools consistently
verified.
bfd/
* elf-bfd.h (elf_backend_data): Add
`elf_backend_elfsym_local_is_section' member.
* elfxx-target.h (elf_backend_elfsym_local_is_section): New
macro.
(elfNN_bed): Add `elf_backend_elfsym_local_is_section' member.
* elflink.c (bfd_elf_final_link): Use it to determine whether
set the `.symtab' section's `sh_info' value to the index of the
first non-local or non-section symbol.
* elf32-mips.c (mips_elf32_elfsym_local_is_section): New
function.
(elf_backend_elfsym_local_is_section): New macro.
* elfn32-mips.c (mips_elf_n32_elfsym_local_is_section): New
function.
(elf_backend_elfsym_local_is_section): New macro.
binutils/
* testsuite/binutils-all/mips/global-local-symtab-o32.d: New
test.
* testsuite/binutils-all/mips/global-local-symtab-o32t.d: New
test.
* testsuite/binutils-all/mips/global-local-symtab-n32.d: New
test.
* testsuite/binutils-all/mips/global-local-symtab-n32t.d: New
test.
* testsuite/binutils-all/mips/global-local-symtab-n64.d: New
test.
* testsuite/binutils-all/mips/mips.exp: Run the new tests.
gas/
* testsuite/gas/mips/global-local-symtab-o32.d: New test.
* testsuite/gas/mips/global-local-symtab-o32t.d: New test.
* testsuite/gas/mips/global-local-symtab-n32.d: New test.
* testsuite/gas/mips/global-local-symtab-n32t.d: New test.
* testsuite/gas/mips/global-local-symtab-n64.d: New test.
* testsuite/gas/mips/global-local-symtab.s: New test source.
* testsuite/gas/mips/mips.exp: Run the new tests.
ld/
* testsuite/ld-mips-elf/global-local-symtab-o32.d: New test.
* testsuite/ld-mips-elf/global-local-symtab-o32t.d: New test.
* testsuite/ld-mips-elf/global-local-symtab-n32.d: New test.
* testsuite/ld-mips-elf/global-local-symtab-n32t.d: New test.
* testsuite/ld-mips-elf/global-local-symtab-n64.d: New test.
* testsuite/ld-mips-elf/global-local-symtab.ld: New test linker
script.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
There is no need to check $pkg_cv_[]$1[]_LIBS works if package check
failed.
config/
PR binutils/26301
* pkg.m4 (PKG_CHECK_MODULES): Use AC_TRY_LINK only if
$pkg_failed = no.
binutils/
PR binutils/26301
* configure: Regenerated.
gdb/
PR binutils/26301
* configure: Regenerated.
It is quite normal to have headers without library on multilib OSes.
Add AC_TRY_LINK to PKG_CHECK_MODULES to check if $pkg_cv_[]$1[]_LIBS
works.
config/
PR binutils/26301
* pkg.m4 (PKG_CHECK_MODULES): Add AC_TRY_LINK to check if
$pkg_cv_[]$1[]_LIBS works.
binutils/
PR binutils/26301
* configure: Regenerated.
gdb/
PR binutils/26301
* configure: Regenerated.
"objdump -s -j .bss" results in a message that indicates objdump
couldn't find a .bss section when present. Fix that.
* objdump.c (dump_section): Don't return without calling
process_section_p.
The binutils testsuite supports involving LD in processing test cases
and with the MIPS target that has the same issues the LD testsuite does.
So to support LD in the MIPS part of the binutils testsuite similarly
to commit 86b24e15c45b ("MIPS/LD/testsuite: Correct comm-data.exp test
ABI/emul/endian arrangement") update the mips.exp test script to:
- correctly select emulations for targets using non-traditional MIPS
emulations,
- correctly select ABIs for targets that do not support all of them,
- use the default endianness selection where possible to benefit targets
that support only one,
- simplify test invocation by providing ABI-specific `run_dump_test'
wrappers, specifically `run_dump_test_o32', `run_dump_test_n32' and
`run_dump_test_n64', which remove the need to use conditionals across
the Expect script or to repeat ABI-specific GAS and LD flags with each
invocation,
borrowing changes from commit 78da84f99405 ("MIPS/LD/testsuite: Correct
mips-elf.exp test ABI/emul/endian arrangement").
As a side effect this disables o32 ABI testing for targets that are not
supposed to support them and do not with LD, but still have such support
with BFD and GAS due to our inflexibility in configuration. Ultimately
we ought to support having o32 completely disabled.
binutils/
* testsuite/binutils-all/mips/mips.exp (run_dump_test_abi)
(run_dump_test_o32, run_dump_test_n32, run_dump_test_n64): New
procedures.
(has_newabi): Remove variable.
(has_abi, abi_asflags, abi_ldflags): New associative array
variables.
(irixemul): New variable.
Replace `run_dump_test' calls where applicable throughout with
`run_dump_test_o32', `run_dump_test_n32' and `run_dump_test_n64'
as appropriate. Use `noarch' for tests that require their own
architecture setting.
* testsuite/binutils-all/mips/mips-ase-1.d: Remove GAS flags.
* testsuite/binutils-all/mips/mips-ase-2.d: Likewise.
* testsuite/binutils-all/mips/mips-ase-3.d: Likewise.
* testsuite/binutils-all/mips/mips-note-2-n32.d: Likewise.
* testsuite/binutils-all/mips/mips-note-2-n64.d: Likewise.
* testsuite/binutils-all/mips/mips-note-2.d: Likewise.
* testsuite/binutils-all/mips/mips-note-2r-n32.d: Likewise.
* testsuite/binutils-all/mips/mips-note-2r-n64.d: Likewise.
* testsuite/binutils-all/mips/mips-note-2r.d: Likewise.
* testsuite/binutils-all/mips/mips-reginfo-n32.d: Likewise.
* testsuite/binutils-all/mips/mips-reginfo.d: Likewise.
* testsuite/binutils-all/mips/mips16-extend-noinsn.d: Likewise.
* testsuite/binutils-all/mips/mips16-pcrel.d: Likewise.
* testsuite/binutils-all/mips/mips16-alias.d: Remove `-32' from
GAS flags.
* testsuite/binutils-all/mips/mips16-extend-insn.d: Likewise.
* testsuite/binutils-all/mips/mips16-noalias.d: Likewise.
* testsuite/binutils-all/mips/mips16-undecoded.d: Likewise.
* testsuite/binutils-all/mips/mips16e2-extend-insn.d: Likewise.
* testsuite/binutils-all/mips/mips16e2-undecoded.d: Likewise.
* testsuite/binutils-all/mips/mixed-micromips.d: Likewise.
* testsuite/binutils-all/mips/mixed-mips16.d: Likewise.
The CTF assembler emitted by GCC has architecture-dependent pseudos in
it, and is (obviously) tightly tied to a particular set of C source
files with specific types in them. The CTF tests do run_dump_test on
some candidate input, link it using the run_dump_test ld machinery, and
compare objdump --ctf output. To avoid skew, we'd like to be able
to easily regenerate the .s being scanned so that the .c doesn't get
out of sync with it, but since GCC emits arch-dependent pseudos, we
are forced to hand-hack the output every time (quite severely on some
arches, like x86-32 and -64, where every single pseudo used is not only
arch-dependent but undocumented).
To avoid this, teach run_dump_test how to optionally compile things
given new, optional additional flags passed in in the cc option.
Only sources with the .c suffix are compiled, so there is no effect on
any existing tests. The .s files go into the tmpdir, from which
existing run_dump_test code picks them up as usual.
binutils/
* testsuite/lib/binutils-common.exp (run_dump_test): Add 'cc'
option.
The CTF objdumping code is adding linefeeds in calls to non_fatal, which
is wrong and looks ugly.
binutils/
* objdump.c (dump_ctf_archive_member): Remove linefeeds.
(dump_ctf): Likewise.
This commit adds a long-missing piece of infrastructure to libctf: the
ability to report errors and warnings using all the power of printf,
rather than being restricted to one errno value. Internally, libctf
calls ctf_err_warn() to add errors and warnings to a list: a new
iterator ctf_errwarning_next() then consumes this list one by one and
hands it to the caller, which can free it. New errors and warnings are
added until the list is consumed by the caller or the ctf_file_t is
closed, so you can dump them at intervals. The caller can of course
choose to print only those warnings it wants. (I am not sure whether we
want objdump, readelf or ld to print warnings or not: right now I'm
printing them, but maybe we only want to print errors? This entirely
depends on whether warnings are voluminous things describing e.g. the
inability to emit single types because of name clashes or something.
There are no users of this infrastructure yet, so it's hard to say.)
There is no internationalization here yet, but this at least adds a
place where internationalization can be added, to one of
ctf_errwarning_next or ctf_err_warn.
We also provide a new ctf_assert() function which uses this
infrastructure to provide non-fatal assertion failures while emitting an
assert-like string to the caller: to save space and avoid needlessly
duplicating unchanging strings, the assertion test is inlined but the
print-things-out failure case is not. All assertions in libctf will be
converted to use this machinery in future commits and propagate
assertion-failure errors up, so that the linker in particular cannot be
killed by libctf assertion failures when it could perfectly well just
print warnings and drop the CTF section.
include/
* ctf-api.h (ECTF_INTERNAL): Adjust error text.
(ctf_errwarning_next): New.
libctf/
* ctf-impl.h (ctf_assert): New.
(ctf_err_warning_t): Likewise.
(ctf_file_t) <ctf_errs_warnings>: Likewise.
(ctf_err_warn): New prototype.
(ctf_assert_fail_internal): Likewise.
* ctf-inlines.h (ctf_assert_internal): Likewise.
* ctf-open.c (ctf_file_close): Free ctf_errs_warnings.
* ctf-create.c (ctf_serialize): Copy it on serialization.
* ctf-subr.c (ctf_err_warn): New, add an error/warning.
(ctf_errwarning_next): New iterator, free and pass back
errors/warnings in succession.
* libctf.ver (ctf_errwarning_next): Add.
ld/
* ldlang.c (lang_ctf_errs_warnings): New, print CTF errors
and warnings. Assert when libctf asserts.
(lang_merge_ctf): Call it.
(land_write_ctf): Likewise.
binutils/
* objdump.c (ctf_archive_member): Print CTF errors and warnings.
* readelf.c (dump_ctf_archive_member): Likewise.
readelf * readelf.c (parse_args): Silence potential warnings about a
memory resource leak when allocating space for ctf option values.
(dump_section_as_ctf): Fix typo checking dump_ctf_strtab_name
variable.
libctf * ctf-archive.c (ctf_arc_write): Avoid calling close twice on the
same file descriptor.
ARC can use odd-even double register pairs in some selected
instructions. Although the GNU assembler doesn't allow even-odd
registers to be used, there may be cases when the disassembler is
presented with such situation. This patch add a test and detects such
cases.
opcodes/
2020-07-14 Claudiu Zissulescu <claziss@gmail.com>
* arc-dis.c (print_insn_arc): Detect and emit a warning when a
faulty double register pair is detected.
binutils/
2020-07-14 Claudiu Zissulescu <claziss@gmail.com>
* testsuite/binutils-all/arc/double_regs.s: New test.
* testsuite/binutils-all/arc/objdump.exp: Add the above test.
Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
Tests just having "xfail: x86_64-*-cygwin" aren't good, since
presumably if a test fails on x86_64-cygwin then it also fails on
x86_64-*-pe* and x86_64-*-mingw*.
binutils/
* testsuite/lib/binutils-common.exp (is_pecoff_format): Accept
optional machine-os arg.
ld/
* testsuite/ld-scripts/default-script1.d: Don't skip, xfail
using is_pecoff_format.
* testsuite/ld-scripts/default-script2.d: Likewise.
* testsuite/ld-scripts/default-script3.d: Likewise.
* testsuite/ld-scripts/default-script4.d: Likewise.
* testsuite/ld-scripts/pr20302.d: Remove x86_64-*-cygwin from notarget.
* testsuite/ld-scripts/provide-6.d: Remove x86_64-*-cygwin from xfail.
* testsuite/ld-scripts/provide-8.d: Likewise.
This one isn't just a weird corner case requiring multiple
.PARISC.unwind sections in an object file to trigger the buffer
overflow, it's also a simple bug that would prevent relocations being
applied in the normal case of a single .PARISC.unwind section.
* readelf (slurp_hppa_unwind_table): Set table_len before use
in relocation sanity checks.
and restrict some other tests using is_*_format.
* testsuite/binutils-all/ar.exp: Use is_xcoff_format.
* testsuite/binutils-all/nm.exp: Likewise.
* testsuite/binutils-all/copy-2.d: Run only for elf and pe targets.
* testsuite/binutils-all/copy-3.d: Run only for elf targets.
* testsuite/binutils-all/set-section-alignment.d: Likewise.
* testsuite/binutils-all/copy-4.d: Don't run for xcoff.
Avoid an UNRESOLVED test due to "Error: the XCOFF file format does not
support arbitrary sections".
* testsuite/lib/binutils-common.exp (is_xcoff_format): New.
* testsuite/binutils-all/objcopy.exp (pr25662): Exclude xcoff.
In older gcc, shadowing a function name with a local variable name is
flagged as an error, certainly a bug but which is usually worked
around in binutils:
gcc -DHAVE_CONFIG_H -I. -I$SRC/binutils -I. -I$SRC/binutils -I../bfd -I$SRC/binutils/../bfd -I$SRC/binutils/../include -DLOCALEDIR="\"/usr/local/share/locale\"" -Dbin_dummy_emulation=bin_vanilla_emulation -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Werror -I$SRC/binutils/../zlib -g -O2 -MT dwarf.o -MD -MP -MF $depbase.Tpo -c -o dwarf.o $SRC/binutils/dwarf.c &&\
mv -f $depbase.Tpo $depbase.Po
cc1: warnings being treated as errors
$SRC/binutils/dwarf.c: In function 'display_debug_str_offsets':
$SRC/binutils/dwarf.c:6913: error: declaration of 'index' shadows a global declaration
/usr/include/string.h:309: error: shadowed declaration is here
make[4]: *** [dwarf.o] Error 1
See also GCC PR c/53066. This is just another one that crept in since
I and others last had to use an old version. The name "idx" was used
in the preceding function, display_debug_addr. Also, it was declared
c99 style (after a statement in the block). Committed as obvious.
binutils:
* dwarf.c (display_debug_str_offsets): Rename local variable
index to idx. Move to top of function.
This tidies up in cases where fuzzed thin archives hit the error return
path in setup_nested_archive.
* elfcomm.c (setup_nested_archive): Set nested_arch->file to NULL
after freeing.
(release_archive): Set fields of arch to NULL after freeing.
objdump and readelf have one major CTF-related behavioural difference:
objdump can read .ctf sections that contain CTF archives and extract and
dump their members, while readelf cannot. Since the linker often emits
CTF archives, this means that readelf intermittently and (from the
user's perspective) randomly fails to read CTF in files that ld emits,
with a confusing error message wrongly claiming that the CTF content is
corrupt. This is purely because the archive-opening code in libctf was
needlessly tangled up with the BFD code, so readelf couldn't use it.
Here, we disentangle it, moving ctf_new_archive_internal from
ctf-open-bfd.c into ctf-archive.c and merging it with the helper
function in ctf-archive.c it was already using. We add a new public API
function ctf_arc_bufopen, that looks very like ctf_bufopen but returns
an archive given suitable section data rather than a ctf_file_t: the
archive is a ctf_archive_t, so it can be called on raw CTF dictionaries
(with no archive present) and will return a single-member synthetic
"archive".
There is a tiny lifetime tweak here: before now, the archive code could
assume that the symbol section in the ctf_archive_internal wrapper
structure was always owned by BFD if it was present and should always be
freed: now, the caller can pass one in via ctf_arc_bufopen, wihch has
the usual lifetime rules for such sections (caller frees): so we add an
extra field to track whether this is an internal call from ctf-open-bfd,
in which case we still free the symbol section.
include/
* ctf-api.h (ctf_arc_bufopen): New.
libctf/
* ctf-impl.h (ctf_new_archive_internal): Declare.
(ctf_arc_bufopen): Remove.
(ctf_archive_internal) <ctfi_free_symsect>: New.
* ctf-archive.c (ctf_arc_close): Use it.
(ctf_arc_bufopen): Fuse into...
(ctf_new_archive_internal): ... this, moved across from...
* ctf-open-bfd.c: ... here.
(ctf_bfdopen_ctfsect): Use ctf_arc_bufopen.
* libctf.ver: Add it.
binutils/
* readelf.c (dump_section_as_ctf): Support .ctf archives using
ctf_arc_bufopen. Automatically load the .ctf member of such
archives as the parent of all other members, unless specifically
overridden via --ctf-parent. Split out dumping code into...
(dump_ctf_archive_member): ... here, as in objdump, and call
it once per archive member.
(dump_ctf_indent_lines): Code style fix.
This unfortunately means conditionalizing out all the libctf code, but
the result is not too unbearably ugly, if a bit repetitive. I have
stubbed out code in the !ENABLE_LIBCTF path to avoid extra redundant
ifdefs where it seems that might be helpful. (The stubs are not too
disruptive, but I've tried to keep them on one line where possible to
avoid filling up the screen with stubs that nobody would care about.
If this is too much of a coding style violation I can change it.)
Changes since v2: use GCC_ENABLE rather than repeating all the
AC_ARG_ENABLE stuff over and over again.
ld/
* configure.ac [--enable-libctf]: New, default yes.
Set ENABLE_LIBCTF accordingly.
* Makefile.am [!ENABLE_LIBCTF]: Empty LIBCTF.
* configure: Regenerate.
* config.in: Regenerate.
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* ldlang.c (ctf_output): Conditionalize on ENABLE_LIBCTF.
(ldlang_open_ctf): Likewise.
(lang_merge_ctf): Likewise.
(ldlang_ctf_apply_strsym): Likewise.
(lang_write_ctf): Likewise.
(ldlang_write_ctf_late): Likewise.
(ldlang_open_ctf) [!ENABLE_LIBCTF]: Warn about the presence of CTF
sections.
(lang_merge_ctf) [!ENABLE_LIBCTF]: New stub.
(ldlang_ctf_apply_strsym) [!ENABLE_LIBCTF]: Likewise.
(lang_write_ctf) [!ENABLE_LIBCTF]: Likewise.
(ldlang_write_ctf_late) [!ENABLE_LIBCTF]: Likewise.
* ldelfgen.c (ldelf_emit_ctf_early): Conditionalize on
ENABLE_LIBCTF.
(struct ctf_strsym_iter_cb_arg): Likewise.
(ldelf_ctf_strtab_iter_cb): Likewise.
(ldelf_ctf_symbols_iter_cb): Likewise.
(ldelf_examine_strtab_for_ctf): Likewise.
(ldelf_emit_ctf_early) [!ENABLE_LIBCTF]: New stub.
(ldelf_examine_strtab_for_ctf) [!ENABLE_LIBCTF]: New stub.
binutils/
* configure.ac [--enable-libctf]: New, default yes.
Set ENABLE_LIBCTF accordingly.
* Makefile.am [!ENABLE_LIBCTF]: Empty LIBCTF and LIBCTF_NOBFD.
* configure: Regenerate.
* config.in: Regenerate.
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* objdump.c (usage): Conditionalize portions on ENABLE_LIBCTF.
(option_values): Likewise.
(long_options): Likewise.
(main): Likewise.
(dump_ctf_indent_lines): Conditionalize out when !ENABLE_LIBCTF.
(make_ctfsect): Likewise.
(dump_ctf_archive_member): Likewise.
(dump_ctf) [ENABLE_LIBCTF]: Likewise.
(dump_ctf) [!ENABLE_LIBCTF]: New empty stub.
* readelf.c (options): Conditionalize portions on ENABLE_LIBCTF.
(usage): Likewise.
(process_section_contents): Likewise.
(shdr_to_ctf_sect): Conditionalize out when !ENABLE_LIBCTF.
(dump_ctf_indent_lines): Likewise.
(dump_section_as_ctf) [ENABLE_LIBCTF]: Likewise.
Multiple -M options can be specified in any order. Therefore stright
assignment to fields affected needs to be avoided, such that earlier
options' effects won't be discarded. This was in particular a problem
for -Msuffix followed by certain of the other sub-options.
While updating documentation, take the liberty and also drop the
redundant mentioning of being able to comma-separate multiple options.
This patch adds GNU attribute support to m68k and utilises it to tag the
floating-point calling convention used (hard-float or soft-float). It enables
the linker to ensure linked objects use a consistent floating-point ABI and
allows tools like GDB to infer the ABI used from the ELF file. It is based on
similar work done for PowerPC.
bfd/
* elf32-m68k.c (m68k_elf_merge_obj_attributes): New function.
(elf32_m68k_merge_private_bfd_data): Merge GNU attributes.
binutils/
* readelf.c (display_m68k_gnu_attribute): New function.
(process_arch_specific): Call display_m68k_gnu_attribute for EM_68K.
gas/
* config/tc-m68k.c (m68k_elf_gnu_attribute): New function.
(md_pseudo_table): Handle "gnu_attribute".
* doc/as.texi: Document GNU attribute for M68K.
include/
* elf/m68k.h: Add enum for GNU object attribute with floating point
tag name and values.
ld/
* testsuite/ld-m68k/attr-gnu-4-0.s: New file.
* testsuite/ld-m68k/attr-gnu-4-1.s: Likewise.
* testsuite/ld-m68k/attr-gnu-4-2.s: Likewise.
* testsuite/ld-m68k/attr-gnu-4-00.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-01.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-02.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-10.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-11.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-12.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-20.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-21.d: Likewise.
* testsuite/ld-m68k/attr-gnu-4-22.d: Likewise.
* testsuite/ld-m68k/m68k.exp: Run the new tests.
PR 26160
* dwarf.c (fetch_indexed_string): Detect and handle old style
.debug_str_offset tables.
(display_debug_str_offsets): Likewise. Also add support for
.debug_str_offsets.dwo sections.
PR 26112
* dwarf.c (display_debug_str_offsets): Add code to display the
contents of the .debug_str_offsets section.
(display_debug_macro): Add support for DW_MACRO_define_strx and
DW_MACRO_undef_strx.
bfd
* mach-o.c: Support the new load commands by reading a linkedit data
command for them.
binutils
* od-macho.c: Dump linkedit data for new load commands.
include
* mach-o/loader.h: Add declarations of two new Mach-O load
commands.
ld silently accepts -z relro and -z norelro for targets that lack the
necessary GNU_RELRO support. This patch makes those targets emit a
warning instead, and adds testsuite infrastructure to detect when
relro is unsupported.
binutils/
* testsuite/config/default.exp (ld_elf_shared_opt): Don't set.
* testsuite/lib/binutils-common.exp (check_relro_support): New proc.
(run_dump_test): Use check_relro_support to decide whether to pass
extra ld option "-z norelro".
ld/
* emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Omit
-z relro and -z norelro when target support for GNU_RELRO is lacking.
(gld${EMULATION_NAME}_before_parse): Ignore RELRO default too.
* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse): Ignore
RELRO default when target support for GNU_RELRO is lacking.
* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse): Likewise.
* emultempl/linux.em (gld${EMULATION_NAME}_before_parse): Likewise.
* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse): Likewise.
* testsuite/config/default.exp (ld_elf_shared_opt): Don't set.
* testsuite/ld-elf/pr16322.d: xfail when no relro support.
* testsuite/ld-elf/pr22393-1a.d: Likewise.
* testsuite/ld-elf/pr22393-1b.d: Likewise.
* testsuite/ld-elf/shared.exp (pr20995-2.so, pr20995-2): Likewise.
* testsuite/lib/ld-lib.exp (run_ld_link_tests): Use check_relro_support
to decide whether to pass extra ld option "-z norelro".
Let's do without that unnecessary internal option buffer. This also
fixes another bug in that the REGINFO data was being taken from the
calloc'd internal option buffer, so was all zeros.
* readelf.c (process_mips_specific): Don't alloc memory for
Elf_Internal_Options.
DT_MIPS_OPTIONS is not a regular array as assumed by readelf. This
patch corrects that assumption, and to do so easily, makes various
internal (host byte order) structs the same size as external (target
byte order) structs.
include/
* elf/mips.h (Elf32_RegInfo): Use fixed width integer types.
(Elf64_Internal_RegInfo, Elf_Internal_Options): Likewise.
binutils/
* readelf.c (process_mips_specific): Assert size of internal
types match size of external types, and simplify allocation of
internal buffer. Catch possible integer overflow when sanity
checking option size. Don't assume options are a regular array.
Sanity check reginfo option against option size. Use PRI macros
when printing.
