This is the result of an email thread starting here:
https://sourceware.org/ml/binutils/2018-09/msg00031.html
The main point of the thread is this observation:
* Supposing we had an object file with two globals, SomeGlobal and
SomeOtherGlobal, if one were to do "--globalize-symbol SomeGlobal
--keep-global-symbol SomeOtherGlobal", you might expect that both
SomeGlobal and SomeOtherGlobal are global in the output file... but it
isn't. Because --keep-global-symbol is set and doesn't include
SomeGlobal, SomeGlobal will be demoted to a local symbol. And because
the check to see if we should apply the --globalize-symbol flag checks
"flags" (the original flag set), and not "sym->flags", it decides not
to do anything, so SomeGlobal remains a local symbol. Although this is
a weird edge case, should this be changed so that --keep-global-symbol
implicitly keeps anything also specified via --globalize-symbol? (The
code seems technically correct with respect to the documentation, but
IMO the behavior is counter-intuitive).
binutils* objcopy.c (copy_main): Issue a fata error if the
--keep-global-symbol(s) and the --globalize-symbol(s) options are
used together.
* doc/binutils.texi: Document that the two options are
incompatible.
* testsuite/binutils-all/copy-5.d: New test.
* testsuite/binutils-all/objcopy.exp: Run the new test.
BFD handles ELF relocation sections in an executable differently to
relocation sections in a relocatable object. For a relocatable
object, BFD carries the relocations as data associated with the
section to which they apply; The relocation section doesn't appear as
a separate section. For an executable, dynamic relocation sections do
appear as separate sections. This means that objcopy needs to use
different strategies when dealing with relocations.
When --remove-relocations was added to objcopy with commit
d3e5f6c8f1, objcopy lost the ability to remove dynamic relocation
sections such as .rela.plt from executables using the option
"--remove-section=.rela.plt". This patch reinstates that
functionality.
I thought it best to keep --remove-relocations as is, rather than
extending to handle dynamic relocations as per the patch in the PR,
because executables linked with --emit-relocs may have both dynamic
and non-dynamic relocations. In that case --remove-relocataions=* is
useful to remove all the non-dynamic relocations.
PR binutils/23611
* objcopy.c (handle_remove_section_option): Consider .rela and
.rel sections for stripping directly as well as attached to the
associated section they relocate.
* doc/binutils.texi (remove-relocations): Specify that this
option removes non-dynamic relocation sections.
* testsuite/binutils-all/objcopy.exp
(objcopy_remove_relocations_from_executable): New test.
Binutils documentation uses a mix of spelling for the compound word
"command-line X". According to [1]:
"Sometimes compound words are written separately (nail polish),
sometimes with a hyphen (short-sighted) and sometimes as one word
(eyelashes). Often new compounds are written as two separate words and,
as they become more familiar, they are either connected with a hyphen
(-) or made into one word."
I think command-line X is common enough in our industry that the two
workds command and line should be connected. Since command-line is more
common than commandline, I propose to update binutils documentation to
consistently use "command-line" when this is used as an adjective to a
noun (eg. command-line argument, command-line switch, command-line
option and command-line flag). I've left occurences of "the command
line" as is. I've also left gdb, sim and readline alone and have only
touched public documentation (texi and NEWS files).
[1]
http://dictionary.cambridge.org/grammar/british-grammar/word-formation/compounds
2018-07-02 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* doc/bfdint.texi: Use command-line consistently when used in a
compount word.
* doc/bfdsumm.texi: Likewise.
binutils/
* NEWS: Use command-line consistently when used in a compount word.
* doc/binutils.texi: Likewise and fix trailing whitespace on same
line.
gas/
* NEWS: Use command-line consistently when used in a compount word.
* doc/as.texi: Likewise.
* doc/c-aarch64.texi: Likewise.
* doc/c-alpha.texi: Likewise.
* doc/c-arc.texi: Likewise.
* doc/c-arm.texi: Likewise.
* doc/c-avr.texi: Likewise.
* doc/c-bfin.texi: Likewise.
* doc/c-cris.texi: Likewise.
* doc/c-epiphany.texi: Likewise.
* doc/c-i386.texi: Likewise.
* doc/c-ia64.texi: Likewise.
* doc/c-lm32.texi: Likewise.
* doc/c-m32r.texi: Likewise.
* doc/c-m68k.texi: Likewise.
* doc/c-mips.texi: Likewise.
* doc/c-mmix.texi: Likewise.
* doc/c-msp430.texi: Likewise.
* doc/c-mt.texi: Likewise.
* doc/c-nios2.texi: Likewise.
* doc/c-ppc.texi: Likewise.
* doc/c-pru.texi: Likewise.
* doc/c-rl78.texi: Likewise.
* doc/c-rx.texi: Likewise.
* doc/c-tic6x.texi: Likewise.
* doc/c-v850.texi: Likewise.
* doc/c-vax.texi: Likewise.
* doc/c-visium.texi: Likewise.
* doc/c-xstormy16.texi: Likewise.
* doc/c-xtensa.texi: Likewise.
* doc/c-z80.texi: Likewise.
* doc/c-z8k.texi: Likewise.
* doc/internals.texi: Likewise.
gprof/
* gprof.texi: Use command-line consistently when used in a compount
word.
ld/
* NEWS: Use command-line consistently when used in a compount word.
* ld.texinfo: Likewise.
* ldint.texinfo: Likewise.
Also make the automake strictness "foreign". My regeneration of the
three doc/Makefile.in files already had --foreign in the automake
invocation, so this just makes it explicit.
bfd/
* doc/Makefile.am (AUTOMAKE_OPTIONS): Add "foreign".
* doc/Makefile.in: Regenerate.
binutils/
* doc/Makefile.am (AUTOMAKE_OPTIONS): Add "foreign".
* doc/Makefile.in: Regenerate.
gas/
* doc/Makefile.am (AUTOMAKE_OPTIONS): Add "foreign".
* doc/Makefile.in: Regenerate.
zlib/
* Makefile.in: Regenerate.
When trying to run the update-gnulib.sh script in gdb, I get this:
Error: Wrong automake version (Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^ =:+{}]+)}/ at /opt/automake/1.11.1/bin/automake line 4113.), we need 1.11.1.
Aborting.
Apparently, it's an issue with a regex in automake that triggers a
warning starting with Perl 5.22. It has been fixed in automake 1.15.1.
So I think it's a good excuse to bump the versions of autoconf and
automake used in the gnulib import. And to avoid requiring multiple
builds of autoconf/automake, it was suggested that we bump the required
version of those tools for all binutils-gdb.
For autoconf, the 2.69 version is universally available, so it's an easy
choice. For automake, different distros and distro versions have
different automake versions. But 1.15.1 seems to be the most readily
available as a package. In any case, it's easy to build it from source.
I removed the version checks from AUTOMAKE_OPTIONS and AC_PREREQ,
because I don't think they are useful in our case. They only specify a
lower bound for the acceptable version of automake/autoconf. That's
useful if you let the user choose the version of the tool they want to
use, but want to set a minimum version (because you use a feature that
was introduced in that version). In our case, we force people to use a
specific version anyway. For the autoconf version, we have the check in
config/override.m4 that enforces the version we want. It will be one
less thing to update next time we change autotools version.
I hit a few categories of problems that required some changes. They are
described below along with the chosen solutions.
Problem 1:
configure.ac:17: warning: AM_INIT_AUTOMAKE: two- and three-arguments forms are deprecated. For more info, see:
configure.ac:17: http://www.gnu.org/software/automake/manual/automake.html#Modernize-AM_005fINIT_005fAUTOMAKE-invocation
Solution 1:
Adjust the code based on the example at that URL.
Problem 2 (in zlib/):
Makefile.am: error: required file './INSTALL' not found
Makefile.am: 'automake --add-missing' can install 'INSTALL'
Makefile.am: error: required file './NEWS' not found
Makefile.am: error: required file './AUTHORS' not found
Makefile.am: error: required file './COPYING' not found
Makefile.am: 'automake --add-missing' can install 'COPYING'
Solution 2:
Add the foreign option to AUTOMAKE_OPTIONS.
Problem 3:
doc/Makefile.am:20: error: support for Cygnus-style trees has been removed
Solution 3:
Remove the cygnus options.
Problem 4:
Makefile.am:656: warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')
Solution 4:
Rename "INCLUDES = " to "AM_CPPFLAGS += " (because AM_CPPFLAGS is
already defined earlier).
Problem 5:
doc/Makefile.am:71: warning: suffix '.texinfo' for Texinfo files is discouraged; use '.texi' instead
doc/Makefile.am: warning: Oops!
doc/Makefile.am: It appears this file (or files included by it) are triggering
doc/Makefile.am: an undocumented, soon-to-be-removed automake hack.
doc/Makefile.am: Future automake versions will no longer place in the builddir
doc/Makefile.am: (rather than in the srcdir) the generated '.info' files that
doc/Makefile.am: appear to be cleaned, by e.g. being listed in CLEANFILES or
doc/Makefile.am: DISTCLEANFILES.
doc/Makefile.am: If you want your '.info' files to be placed in the builddir
doc/Makefile.am: rather than in the srcdir, you have to use the shiny new
doc/Makefile.am: 'info-in-builddir' automake option.
Solution 5:
Rename .texinfo files to .texi.
Problem 6:
doc/Makefile.am: warning: Oops!
doc/Makefile.am: It appears this file (or files included by it) are triggering
doc/Makefile.am: an undocumented, soon-to-be-removed automake hack.
doc/Makefile.am: Future automake versions will no longer place in the builddir
doc/Makefile.am: (rather than in the srcdir) the generated '.info' files that
doc/Makefile.am: appear to be cleaned, by e.g. being listed in CLEANFILES or
doc/Makefile.am: DISTCLEANFILES.
doc/Makefile.am: If you want your '.info' files to be placed in the builddir
doc/Makefile.am: rather than in the srcdir, you have to use the shiny new
doc/Makefile.am: 'info-in-builddir' automake option.
Solution 6:
Remove the hack at the bottom of doc/Makefile.am and use
the info-in-builddir automake option.
Problem 7:
doc/Makefile.am:35: error: required file '../texinfo.tex' not found
doc/Makefile.am:35: 'automake --add-missing' can install 'texinfo.tex'
Solution 7:
Use the no-texinfo.tex automake option. We also have one in
texinfo/texinfo.tex, not sure if we should point to that, or move it
(or a newer version of it added with automake --add-missing) to
top-level.
Problem 8:
Makefile.am:131: warning: source file 'config/tc-aarch64.c' is in a subdirectory,
Makefile.am:131: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
Solution 8:
Use subdir-objects, that means adjusting references to some .o that will now
be in config/.
Problem 9:
configure.ac:375: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:193: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2601: _AC_COMPILE_IFELSE is expanded from...
../../lib/autoconf/general.m4:2617: AC_COMPILE_IFELSE is expanded from...
../../lib/m4sugar/m4sh.m4:639: AS_IF is expanded from...
../../lib/autoconf/general.m4:2042: AC_CACHE_VAL is expanded from...
../../lib/autoconf/general.m4:2063: AC_CACHE_CHECK is expanded from...
configure.ac:375: the top level
Solution 9:
Use AC_LANG_SOURCE, or use proper quoting.
Problem 10 (in intl/):
configure.ac:7: warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
/usr/share/aclocal/threadlib.m4:36: gl_THREADLIB_EARLY_BODY is expanded from...
/usr/share/aclocal/threadlib.m4:29: gl_THREADLIB_EARLY is expanded from...
/usr/share/aclocal/threadlib.m4:318: gl_THREADLIB is expanded from...
/usr/share/aclocal/lock.m4:9: gl_LOCK is expanded from...
/usr/share/aclocal/intl.m4:211: gt_INTL_SUBDIR_CORE is expanded from...
/usr/share/aclocal/intl.m4:25: AM_INTL_SUBDIR is expanded from...
/usr/share/aclocal/gettext.m4:57: AM_GNU_GETTEXT is expanded from...
configure.ac:7: the top level
Solution 10:
Add AC_USE_SYSTEM_EXTENSIONS in configure.ac.
ChangeLog:
* libtool.m4: Use AC_LANG_SOURCE.
* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
* README-maintainer-mode: Update version requirements.
* ar-lib: New file.
* test-driver: New file.
* configure: Re-generate.
bfd/ChangeLog:
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11.
(INCLUDES): Rename to ...
(AM_CPPFLAGS): ... this.
* configure.ac: Remove AC_PREREQ.
* doc/Makefile.am (AUTOMAKE_OPTIONS): Remove 1.9, cygnus, add
info-in-builddir no-texinfo.tex.
(info_TEXINFOS): Rename bfd.texinfo to bfd.texi.
* doc/bfd.texinfo: Rename to ...
* doc/bfd.texi: ... this.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* doc/Makefile.in: Re-generate.
binutils/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* doc/Makefile.am (AUTOMAKE_OPTIONS): Remove cygnus, add
info-in-builddir no-texinfo.tex.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* doc/Makefile.in: Re-generate.
config/ChangeLog:
* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.
etc/ChangeLog:
* configure.in: Remove AC_PREREQ.
* configure: Re-generate.
gas/ChangeLog:
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11, add subdir-objects.
(TARG_CPU_O, OBJ_FORMAT_O, ATOF_TARG_O): Add config/ prefix.
* configure.ac (TARG_CPU_O, OBJ_FORMAT_O, ATOF_TARG_O, emfiles,
extra_objects): Add config/ prefix.
* doc/as.texinfo: Rename to...
* doc/as.texi: ... this.
* doc/Makefile.am: Rename as.texinfo to as.texi throughout.
Remove DISTCLEANFILES hack.
(AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add no-texinfo.tex and
info-in-builddir.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
* doc/Makefile.in: Re-generate.
gdb/ChangeLog:
* common/common-defs.h (PACKAGE_NAME, PACKAGE_VERSION,
PACKAGE_STRING, PACKAGE_TARNAME): Undefine.
* configure.ac: Remove AC_PREREQ, add missing quoting.
* gnulib/configure.ac: Modernize usage of
AC_INIT/AM_INIT_AUTOMAKE. Remove AC_PREREQ.
* gnulib/update-gnulib.sh (AUTOCONF_VERSION): Bump to 2.69.
(AUTOMAKE_VERSION): Bump to 1.15.1.
* configure: Re-generate.
* config.in: Re-generate.
* aclocal.m4: Re-generate.
* gnulib/aclocal.m4: Re-generate.
* gnulib/config.in: Re-generate.
* gnulib/configure: Re-generate.
* gnulib/import/Makefile.in: Re-generate.
gdb/gdbserver/ChangeLog:
* configure.ac: Remove AC_PREREQ, add missing quoting.
* configure: Re-generate.
* config.in: Re-generate.
* aclocal.m4: Re-generate.
gdb/testsuite/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
gold/ChangeLog:
* configure.ac: Remove AC_PREREQ, add missing quoting and usage
of AC_LANG_SOURCE.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
* testsuite/Makefile.in: Re-generate.
gprof/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* Makefile.am: Remove DISTCLEANFILES hack.
(AUTOMAKE_OPTIONS): Remove 1.11, add info-in-builddir.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
* gconfig.in: Re-generate.
intl/ChangeLog:
* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
* configure: Re-generate.
* config.h.in: Re-generate.
* aclocal.m4: Re-generate.
ld/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* Makefile.am: Remove DISTCLEANFILES hack, rename ld.texinfo to
ld.texi, ldint.texinfo to ldint.texi throughout.
(AUTOMAKE_OPTIONS): Add info-in-builddir.
* README: Rename ld.texinfo to ld.texi, ldint.texinfo to
ldint.texi throughout.
* gen-doc.texi: Likewise.
* h8-doc.texi: Likewise.
* ld.texinfo: Rename to ...
* ld.texi: ... this.
* ldint.texinfo: Rename to ...
* ldint.texi: ... this.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* config.in: Re-generate.
* configure: Re-generate.
libdecnumber/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* aclocal.m4.
libiberty/ChangeLog:
* configure.ac: Remove AC_PREREQ.
* configure: Re-generate.
* config.in: Re-generate.
opcodes/ChangeLog:
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.11.
* configure.ac: Remove AC_PREREQ.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
readline/ChangeLog.gdb:
* configure: Re-generate.
* examples/rlfe/configure: Re-generate.
sim/ChangeLog:
* All configure.ac: Remove AC_PREREQ.
* All configure: Re-generate.
zlib/ChangeLog.bin-gdb:
* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add
foreign.
* Makefile.in: Re-generate.
* aclocal.m4: Re-generate.
* configure: Re-generate.
PR 23107
* ar.c (display_offsets): New variable.
(usage): Add description of 'O' operator.
(decode_option): Handle 'O' operator.
(print_descr): Pass display_offsets to print_arelt_descr.
* arsup.c: Update call to printy_arelt_descr.
* objdump.c: Likewise.
* bucomm.c (print_arelt_descr): If offsets parameter is true then
display offset of archive element within the archive.
* bucomm.h: Update prototype for print_arelt_descr.
* doc/binutils.texi: Update description of ar command.
* NEWS: Mention the new feature.
* testsuite/binutils-all/ar.exp: Add text of new feature.
This patch adds a new platform option "notes" that can be used to indicate if
disassembly notes should be placed in the disassembly as comments.
These notes can contain information about a failing constraint such as reading
from a write-only register. The disassembly will not be blocked because of this
but -M notes will emit a comment saying that the operation is not allowed.
For assembly this patch adds a new non-fatal status for errors. This is
essentially a warning. The reason for not creating an actual warning type is
that this causes the interaction between the ordering of warnings and errors to
be problematic. Currently the error buffer is almost always filled because of
the way operands are matched during assembly. An earlier template may have put
an error there that would only be displayed if no other template matches or
generates a higher priority error. But by definition a warning is lower
priority than a warning, so the error (which is incorrect if another template
matched) will supersede the warning. By treating warnings as errors and only
later relaxing the severity this relationship keeps working and the existing
reporting infrastructure can be re-used.
binutils/
PR binutils/21446
* doc/binutils.texi (-M): Document AArch64 options.
* NEWS: Document notes and warnings.
gas/
PR binutils/21446
* config/tc-aarch64.c (print_operands): Indicate no notes.
(output_operand_error_record): Support non-fatal errors.
(output_operand_error_report, warn_unpredictable_ldst, md_assemble):
Likewise.
include/
PR binutils/21446
* opcode/aarch64.h (aarch64_operand_error): Add non_fatal.
(aarch64_print_operand): Support notes.
opcodes/
PR binutils/21446
* aarch64-dis.c (no_notes: New.
(parse_aarch64_dis_option): Support notes.
(aarch64_decode_insn, print_operands): Likewise.
(print_aarch64_disassembler_options): Document notes.
* aarch64-opc.c (aarch64_print_operand): Support notes.
PR 22734
* doc/binutils.texi (nm): Update description to point out that
zero-initialized values can also be shown as type B, b, S or s
since they can be stored in the BSS section.
* dwarf.c (dwo_name, dwo_dir, dwo_id, dwo_id_len): New variables.
(read_and_display_attr_value): Record dwo variables if requested.
(display_augmentation_data): Rename to display_data and make
generic.
(load_dwo_file): New function. Loads a separate dwarf object
file.
(load_separate_debug_file): Add reporting and loading of separate
dwarf objet files.
* readelf.c (process_section_headers): Add do_debug_links to list
of flags requiring a debug dump.
(display_debug_section): Tidy up code.
* doc/debug.options.texi: Add note that dwo links will also be
followed.
* testsuite/binutils-all/debuglink.s: Tidy code.
* testsuite/binutils-all/dwo.s: New test file.
* testsuite/binutils-all/readelf.wk2: New file - expected output
from readelf.
* testsuite/binutils-all/readelf.exp: Run the new test.
Hi Guys,
I am applying the rather large patch attached to this email to enhance
the readelf and objdump programs so that they now have the ability to
follow links to separate debug info files. (As requested by PR
15152). So for example whereas before we had this output:
$ readelf -wi main.exe
Contents of the .debug_info section:
[...]
<15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c)
[...]
With the new option enabled we get:
$ readelf -wiK main.exe
main.exe: Found separate debug info file: dwz.debug
Contents of the .debug_info section (loaded from main.exe):
[...]
<15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c) /home/nickc/Downloads/dwzm
[...]
The link following feature also means that we can get two lots of
output if the same section exists in both the main file and the
separate debug info file:
$ readelf -wiK main.exe
main.exe: Found separate debug info file: dwz.debug
Contents of the .debug_info section (loaded from main.exe):
[...]
Contents of the .debug_info section (loaded from dwz.debug):
[...]
The patch also adds the ability to display the contents of debuglink
sections:
$ readelf -wk main.exe
Contents of the .gnu_debugaltlink section:
Separate debug info file: dwz.debug
Build-ID (0x14 bytes):
c4 a8 89 8d 64 cf 70 8a 35 68 21 f2 ed 24 45 3e 18 7a 7a 93
Naturally there are long versions of these options (=follow-links and
=links). The documentation has been updated as well, and since both
readelf and objdump use the same set of debug display options, I have
moved the text into a separate file. There are also a couple of new
binutils tests to exercise the new behaviour.
There are a couple of missing features in the current patch however,
although I do intend to address them in follow up submissions:
Firstly the code does not check the build-id inside separate debug
info files when it is searching for a file specified by a
.gnu_debugaltlink section. It just assumes that if the file is there,
then it contains the information being sought.
Secondly I have not checked the DWARF-5 version of these link
features, so there will probably be code to add there.
Thirdly I have only implemented link following for the
DW_FORM_GNU_strp_alt format. Other alternate formats (eg
DW_FORM_GNU_ref_alt) have yet to be implemented.
Lastly, whilst implementing this feature I found it necessary to move
some of the global variables used by readelf (eg section_headers) into
a structure that can be passed around. I have moved all of the global
variables that were necessary to get the patch working, but I need to
complete the operation and move the remaining, file-specific variables
(eg dynamic_strings).
Cheers
Nick
binutils PR 15152
* dwarf.h (enum dwarf_section_display_enum): Add gnu_debuglink,
gnu_debugaltlink and separate_debug_str.
(struct dwarf_section): Add filename field.
Add prototypes for load_separate_debug_file, close_debug_file and
open_debug_file.
* dwarf.c (do_debug_links): New.
(do_follow_links): New.
(separate_debug_file, separate_debug_filename): New.
(fetch_alt_indirect_string): New function. Retrieves a string
from the debug string table in the separate debug info file.
(read_and_display_attr_value): Use it with DW_FORM_GNU_strp_alt.
(load_debug_section_with_follow): New function. Like
load_debug_section, but if the first attempt fails, then tries
again in the separate debug info file.
(introduce): New function.
(process_debug_info): Use load_debug_section_with_follow and
introduce.
(load_debug_info): Likewise.
(display_debug_lines_raw): Likewise.
(display_debug_lines_decoded): Likewise.
(display_debug_macinfo): Likewise.
(display_debug_macro): Likewise.
(display_debug_abbrev): Likewise.
(display_debug_loc): Likewise.
(display_debug_str): Likewise.
(display_debug_aranges): Likewise.
(display_debug_addr); Likewise.
(display_debug_frames): Likewise.
(display_gdb_index): Likewise.
(process_cu_tu_index): Likewise.
(load_cu_tu_indexes): Likewise.
(display_debug_links): New function. Displays the contents of a
.gnu_debuglink or .gnu_debugaltlink section.
(calc_gnu_debuglink_ctc32):New function. Calculates a CRC32
value.
(check_gnu_debuglink): New function. Checks the CRC of a
potential separate debug info file.
(parse_gnu_debuglink): New function. Reads a CRC value out of a
.gnu_debuglink section.
(check_gnu_debugaltlink): New function.
(parse_gnu_debugaltlink): New function. Reads the build-id value
out of a .gnu_debugaltlink section.
(load_separate_debug_info): New function. Finds and loads a
separate debug info file.
(load_separate_debug_file): New function. Attempts to find and
follow a link to a separate debug info file.
(free_debug_memory): Free the separate debug info file
information.
(opts_table): Add "follow-links" and "links".
(dwarf_select_sections_by_letters): Add "k" and "K".
(debug_displays): Reformat. Add .gnu-debuglink and
.gnu_debugaltlink.
Add an extra entry for .debug_str in a separate debug info file.
* doc/binutils.texi: Move description of debug dump features
common to both readelf and objdump into...
* objdump.c (usage): Add -Wk and -WK.
(load_specific_debug_section): Initialise the filename field in
the dwarf_section structure.
(close_debug_file): New function.
(open_debug_file): New function.
(dump_dwarf): Load and dump the separate debug info sections.
* readelf.c (struct filedata): New structure. Contains various
variables that used to be global:
(current_file_size, string_table, string_table_length, elf_header)
(section_headers, program_headers, dump_sects, num_dump_sects):
Move into filedata structure.
(cmdline): New global variable. Contains list of sections to dump
by number, as specified on the command line.
Add filedata parameter to most functions.
(load_debug_section): Load the string table if it has not already
been retrieved.
(close_file): New function.
(close_debug_file): New function.
(open_file): New function.
(open_debug_file): New function.
(process_object): Process sections in any separate debug info files.
* doc/debug.options.texi: New file. Add description of =links and
=follow-links options.
* NEWS: Mention the new feature.
* elfcomm.c: Have the byte gte functions take a const pointer.
* elfcomm.h: Update prototypes.
* testsuite/binutils-all/dw5.W: Update expected output.
* testsuite/binutils-all/objdump.WL: Update expected output.
* testsuite/binutils-all/objdump.exp: Add test of -WK and -Wk.
* testsuite/binutils-all/readelf.exp: Add test of -wK and -wk.
* testsuite/binutils-all/readelf.k: New file.
* testsuite/binutils-all/objdump.Wk: New file.
* testsuite/binutils-all/objdump.WK2: New file.
* testsuite/binutils-all/linkdebug.s: New file.
* testsuite/binutils-all/debuglink.s: New file.
gas * testsuite/gas/avr/large-debug-line-table.d: Update expected
output.
* testsuite/gas/elf/dwarf2-11.d: Likewise.
* testsuite/gas/elf/dwarf2-12.d: Likewise.
* testsuite/gas/elf/dwarf2-13.d: Likewise.
* testsuite/gas/elf/dwarf2-14.d: Likewise.
* testsuite/gas/elf/dwarf2-15.d: Likewise.
* testsuite/gas/elf/dwarf2-16.d: Likewise.
* testsuite/gas/elf/dwarf2-17.d: Likewise.
* testsuite/gas/elf/dwarf2-18.d: Likewise.
* testsuite/gas/elf/dwarf2-5.d: Likewise.
* testsuite/gas/elf/dwarf2-6.d: Likewise.
* testsuite/gas/elf/dwarf2-7.d: Likewise.
ld * testsuite/ld-avr/gc-section-debugline.d: Update expected
output.
Force printing of the short/signed values using hexadecimal
representation via disassembler option.
opcode/
2017-11-03 Claudiu Zissulescu <claziss@synopsys.com>
* arc-dis.c (print_hex): New variable.
(parse_option): Check for hex option.
(print_insn_arc): Use hexadecimal representation for short
immediate values when requested.
(print_arc_disassembler_options): Add hex option to the list.
binutils/
2017-11-03 Claudiu Zissulescu <claziss@synopsys.com>
* doc/binutils.texi (ARC): Update disassembler options.
* testsuite/binutils-all/arc/hexprint.s: New file.
* testsuite/binutils-all/arc/objdump.exp: Test hex printing feature.
PR 22369
* coffgen.c (_bfd_coff_free_symbols): Fail if called on a non-COFF
file.
* cofflink.c (coff_link_check_archive_element): Skip non-COFF
members of an archive.
Currently print_insn_arc relies on BFD mach and ELF private headers to
distinguish between various ARC architectures. Sometimes those values are not
correct or available, mainly in the case of debugging targets without and ELF
file available. Changing a BFD mach is not a problem for the debugger, because
this is a generic BFD field, and GDB, for example, already sets it according to
information provided in XML target description or specified via GDB 'set arch'
command. However, things are more complicated for ELF private headers, since
it requires existing of an actual ELF file. To workaround this problem this
patch allows CPU model to be specified via disassemble info options. If CPU is
specified in options, then it will take a higher precedence than whatever might
be specified in ELF file.
This is mostly needed for ARC EM and ARC HS, because they have the same
"architecture" (mach) ARCv2 and differ in their private ELF headers. Other ARC
architectures can be distinguished between each other purely via "mach" field.
Proposed disassemble option format is "cpu=<CPU>", where CPU can be any valid
ARC CPU name as supported by GAS. Note that this creates a seeming redundancy
with objdump -m/--architecture option, however -mEM and -mHS still result in
"ARCv2" architecture internally, while -Mcpu={HS,EM} would have an actual
effect on disassembler.
opcodes/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* arc-dis.c (enforced_isa_mask): Declare.
(cpu_types): Likewise.
(parse_cpu_option): New function.
(parse_disassembler_options): Use it.
(print_insn_arc): Use enforced_isa_mask.
(print_arc_disassembler_options): Document new options.
binutils/ChangeLog:
yyyy-mm-dd Anton Kolesov <anton.kolesov@synopsys.com>
* doc/binutils.texi: Document new cpu=... disassembler options for ARC.
* objcopy.c: Add --no-merge-notes option to disable note merging.
Add --[no-]merge-notes option to strip, and enable it by default.
(num_bytes): New function.
(merge_gnu_build_notes): Add code to merge stack size notes.
* binutils.texi: Update strip and objcopy documentation.
* readelf.c (print_gnu_build_attribute_name): Use defined
constants for note types.
This adds -Mraw for PowerPC objdump, a disassembler option to display
the underlying machine instruction rather than aliases. For example,
"rlwinm" always rather than "rotlwi" when the instruction is
performing a simple rotate.
binutils/
* doc/binutils.texi (objdump): Document PowerPC -M options.
gas/
* config/tc-ppc.c (md_parse_option): Reject -mraw.
include/
* opcode/ppc.h (PPC_OPCODE_RAW): Define.
(PPC_OPCODE_*): Make them all unsigned long long constants.
opcodes/
* ppc-dis.c (ppc_opts): Set PPC_OPCODE_PPC for "any" flags. Add
"raw" option.
(lookup_powerpc): Don't special case -1 dialect. Handle
PPC_OPCODE_RAW.
(print_insn_powerpc): Mask out PPC_OPCODE_ANY on first
lookup_powerpc call, pass it on second.
PR 20343
ld * ld.texinfo (Options): Extend documentation of the --plugin
option. Include a description of where the plugins should be
located.
binutils* doc/binutils.texi (ar): Extend documentation of the --plugin
option. Include a description of where the plugins should be
located.
(nm): Likewise.
PR binutils/20751
* nm.c (with_symbol_versions): New local variable.
(long_options): Add --with-symbol-versions.
(usage): Mention --with-symbol-versions.
(print_symbol): If with_symbol_versions is set then display the
version information associated with the symbol.
* NEWS: Mention the new feature.
* doc/binutils.texi (nm): Document the new option.
(objdump): Describe how symbol version information is displayed
for dynamic symbol dumps.
(readelf): Describe how symbol version information is displayed.
* testsuite/binutils-all/nm.exp: Add a test of the new feature.
The objcopy and strip tools make use of the bfd library to manipulate
the state of the input file (to produce an output file). Within the
input file (for ELF at least), relocations are held within a section,
and so, if the user wanted to remove the relocations, but keep the
section to which the relocations would have been applied, it is tempting
to think that specifying the name of a relocation section to objcopy's
--remove-section option might do what you want, for example:
objcopy --remove-section=.rela.text input.elf output.elf
However, this does not work. The reason is that when the input file is
loaded, relocations are not managed as sections, but are, instead,
loaded as data associated with the section to which the relocations
would be applied. In our example above the relocations in '.rela.text'
are held as data on the section '.text' once 'input.elf' is loaded.
One task that objcopy and strip do is copy the relocations from the
input file to the output file if the section is also being copied from
the input file to the output file.
This commit adds a new command line option for objcopy and strip,
--remove-relocations, which can be used to remove the relocations, while
keeping the section that the relocations would have been applied to, for
example:
objcopy --remove-relocations=.text input.elf output.elf
in this case the section '.text' will appear in both 'input.elf' and
'output.elf', but any relocations in 'input.elf' that apply to '.text'
will not be present in 'output.elf'.
I have also added a special case to the handling of --remove-section
that spots if a user tries to remove a relocation section (currently
this is done by spotting the '.rela.' or '.rel.' prefix) and forwards
the request to --remove-relocations.
As with --remove-section and --only-section the --remove-relocations
option supports the '!' prefix on the section-patterns it takes to allow
for sections to be specifically not matched.
There are tests for all the new functionality.
binutils/ChangeLog:
* doc/binutils.texi (objcopy): Document 'remove-relocations'.
(strip): Likewise.
* objcopy.c (SECTION_CONTEXT_REMOVE_RELOCS): Define.
(enum command_line_switch): Add 'OPTION_REMOVE_RELOCS'.
(struct option strip_options): Add 'remove-relocations'.
(struct option copy_options): Likewise.
(copy_usage): Likewise.
(strip_usage): Likewise.
(handle_remove_relocations_option): New function.
(discard_relocations): New function.
(handle_remove_section_option): New function.
(copy_relocations_in_section): Use discard_relocations.
(strip_main): Use handle_remove_section_option for
'remove-section', and handle 'remove-relocations' option.
(copy_main): Likewise.
* testsuite/binutils-all/objcopy.exp: Run new tests.
* testsuite/binutils-all/remove-relocs-01.d: New file.
* testsuite/binutils-all/remove-relocs-01.s: New file.
* testsuite/binutils-all/remove-relocs-02.d: New file.
* testsuite/binutils-all/remove-relocs-03.d: New file.
* testsuite/binutils-all/remove-relocs-04.d: New file.
* testsuite/binutils-all/remove-relocs-05.d: New file.
* testsuite/binutils-all/remove-relocs-06.d: New file.
For symbol matching, prefixing a pattern with '!' will indicate a
non-matching pattern, however, this is not the case for section
patterns. As a result it is not possible to say "apply this action to
all sections except ...".
With this commit the objcopy and strip tools now support '!' prefix for
section patterns, so we can say:
objcopy --remove-section="*" --remove-section="!.text*"
Which will remove all sections, except those matching the pattern
'.text*'.
binutils/ChangeLog:
* objcopy.c (find_section_list): Handle section patterns starting
with '!' being a non-matching pattern.
* doc/binutils.texi (objcopy): Give example of using '!' with
--remove-section and --only-section.
(strip): Give example of using '!' with --remove-section.
* testsuite/binutils-all/data-sections.s: New file.
* testsuite/binutils-all/only-section-01.d: New file.
* testsuite/binutils-all/remove-section-01.d: New file.
* testsuite/binutils-all/objcopy.exp: Run new tests.
* NEWS: Mention new feature.
The documentation for 'nm --size-sort' is out of step with the code, the
special handling for ELF is not mentioned in the documentation, and
could cause confusion to a user.
binutils/ChangeLog:
* doc/binutils.texi (nm): Update description of --size-sort.
For objcopy, --compress-debug-sections=none is the same as
--decompress-debug-sections, not --nocompress-debug-sections.
* doc/binutils.texi: Fix a typo.
bfd/ChangeLog:
* elf32-arm.c ((elf32_arm_special_sections): Remove catch of noread
section using '.text.noread' pattern.
gas/ChangeLog:
* config/obj-elf.c (obj_elf_change_section) : Allow arm section with
SHF_ARM_NOREAD section flag.
* config/tc-arm.h (md_elf_section_letter) : Implement this hook to
handle letter 'y'.
(arm_elf_section_letter) : Declare it.
* config/tc-arm.c (arm_elf_section_letter): Handle letter 'y' to set
SHF_ARM_NOREAD section flag.
* doc/c-arm.texi (ARM section attribute 'y'): Document it.
gas/testsuite/ChangeLog:
* gas/arm/section-execute-only.s: New test case.
* gas/arm/section-execute-only.d: Expected output.
ld/testsuite/ChangeLog:
* ld-arm/thumb1-noread-not-present-mixing-two-section.s: Add 'y'
attribute usage.
* ld-arm/thumb1-noread-present-one-section.s: Likewise.
* ld-arm/thumb1-noread-present-two-section.s: Likewise.
* ld-arm/thumb1-input-section-flag-match.s: Likewise.
binutils/ChangeLog:
* readelf.c (get_elf_section_flags): Display y letter for section
with SHF_ARM_NOREAD section flag in readelf section output.
(process_section_headers): Add y letter in readelf section output
key mapping for ARM architecture.
PR binutils/19104
binutils * objcopy.c (command_line_switch): Add OPTION_ADD_SYMBOL.
(copy_options): Add add-symbol.
(copy_usage): Likewise.
(parse_symflags): New function.
(need_sym_before): New function.
(create_new_symbol): New function.
(filter_symbols): Add code to insert new symbols.
(copy_main): Process OPTION_ADD_SYMBOL.
* doc/binutils.texi: Document new feature.
* NEWS: Add note about the new feature.
tests * binutils-all/add-symbol.d: New test.
* binutils-all/objcopy.exp: Run the new test.
* strings.c: Add -s/--output-separator option to specify custom
separator string.
* NEWS: Mention the new feature.
* doc/binutils.text (strings): Document the new command line
option.
bfd * elf.c (_bfd_elf_copy_private_bfd_data): Copy the sh_link and
sh_info fields of sections whose type has been changed to
SHT_NOBITS.
bin * doc/binutils.texi: Document that the --only-keep-debug option
to strip and objcopy preserves the section headers of stripped
sections.
tests * binutils-all/objcopy.exp (keep_debug_symbols_and_check_links):
New proc. Checks that debug-info-only binaries retain the
sh_link field in stripped sections.
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.
include * dis-asm.h (struct disassemble_info): Add stop_vma field.
binuti * objdump.c (disassemble_bytes): Set the stop_vma field in the
disassemble_info structure when disassembling code sections with
-d.
* doc/binutils.texi (objdump): Document the discrepancy between -d
and -D.
opcodes * dis-buf.c (buffer_read_memory): Fail is stop_vma is set and the
requested region lies beyond it.
* bfin-dis.c (print_insn_bfin): Ignore sysop instructions when
looking for 32-bit insns.
* mcore-dis.c (print_insn_mcore): Disable stop_vma when reading
data.
* sh-dis.c (print_insn_sh): Likewise.
* tic6x-dis.c (print_insn_tic6x): Disable stop_vma when reading
blocks of instructions.
* vax-dis.c (print_insn_vax): Check that the requested address
does not clash with the stop_vma.
tests * gas/arm/backslash-at.s: Add extra .byte directives so that the
foo symbol does not appear to point half way through an
instruction.
* gas/arm/backslash-at.d: Update expected disassembly.
* gas/i386/ilp32/x86-64-opcode-inval-intel.d: Likewise.
* gas/i386/ilp32/x86-64-opcode-inval.d: Likewise.
* gas/i386/x86-64-opcode-inval-intel.d: Likewise.
* gas/i386/x86-64-opcode-inval.d: Likewise.
AMD64 spec and Intel64 spec differ in direct unconditional branches in
64-bit mode. AMD64 supports direct unconditional branches with 16-bit
offset via the data size prefix, which truncates RIP to 16 bits, while
the data size prefix is ignored by Intel64.
This patch adds -mamd64/-mintel64 option to x86-64 assembler and
-Mamd64/-Mintel64 option to x86-64 disassembler. The most permissive
ISA, which is AMD64, is the default.
GDB can add an option, similar to
(gdb) help set disassembly-flavor
Set the disassembly flavor.
The valid values are "att" and "intel", and the default value is "att".
to select which ISA to disassemble.
binutils/
PR binutis/18386
* doc/binutils.texi: Document -Mamd64 and -Mintel64.
gas/
PR binutis/18386
* config/tc-i386.c (OPTION_MAMD64): New.
(OPTION_MINTEL64): Likewise.
(md_longopts): Add -mamd64 and -mintel64.
(md_parse_option): Handle OPTION_MAMD64 and OPTION_MINTEL64.
(md_show_usage): Add -mamd64 and -mintel64.
* doc/c-i386.texi: Document -mamd64 and -mintel64.
gas/testsuite/
PR binutis/18386
* gas/i386/i386.exp: Run x86-64-branch-2 and x86-64-branch-3.
* gas/i386/x86-64-branch.d: Also pass -Mintel64 to objdump.
* gas/i386/ilp32/x86-64-branch.d: Likewise.
* gas/i386/x86-64-branch-2.d: New file.
* gas/i386/x86-64-branch-2.s: Likewise.
* gas/i386/x86-64-branch-3.l: Likewise.
* gas/i386/x86-64-branch-3.s: Likewise.
ld/testsuite/
PR binutis/18386
* ld-x86-64/tlsgdesc.dd: Also pass -Mintel64 to objdump.
* ld-x86-64/tlspic.dd: Likewise.
* ld-x86-64/x86-64.exp (x86_64tests): Also pass -Mintel64 to
objdump for tlspic.dd and tlsgdesc.dd.
opcodes/
PR binutis/18386
* i386-dis.c: Add comments for '@'.
(x86_64_table): Use '@' on call/jmp for X86_64_E8/X86_64_E9.
(enum x86_64_isa): New.
(isa64): Likewise.
(print_i386_disassembler_options): Add amd64 and intel64.
(print_insn): Handle amd64 and intel64.
(putop): Handle '@'.
(OP_J): Don't ignore the operand size prefix for AMD64 in 64-bit.
* i386-gen.c (cpu_flags): Add CpuAMD64 and CpuIntel64.
* i386-opc.h (AMD64): New.
(CpuIntel64): Likewise.
(i386_cpu_flags): Add cpuamd64 and cpuintel64.
* i386-opc.tbl: Add direct call/jmp with Disp16|Disp32 for AMD64.
Mark direct call/jmp without Disp16|Disp32 as Intel64.
* i386-init.h: Regenerated.
* i386-tbl.h: Likewise.
bin * readelf.c (options): Add "decompress".
(usage): Mention -z/--decompress.
(parse_args): Handle -z.
(uncompress_section_contents): Move to earlier in the file.
(dump_section_as_strings): If requested, decompress the section
before dumping.
(dump_section_as_bytes): Likewise.
* doc/binutils.texi: Document the new option.
tests * binutils-all/z.s: New test. Checks the --decompress option to
readelf.
* binutils-all/readelf.exp: Run the test.
* binutils-all/readelf.z: Expected output from readelf.
binutils/
* elfedit.c (enum elfclass): New.
(input_elf_class): Change type to enum elfclass.
(output_elf_class): New.
(elf_class): Change return type to enum elfclass. Support EM_386
and EM_IAMCU.
(update_elf_header): Check if input and output ELF classes match.
(elf_machine): Support EM_386 and EM_IAMCU.
(main): Update input_elf_class. Set output_elf_class.
* doc/binutils.texi: Update elfedit.
binutils/testsuite/
* binutils-all/elfedit-5.d: New file.
* binutils-all/elfedit.exp: Run elfedit-5.
This patch adds --compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}
options to gas and objcopy for ELF files. They control how DWARF debug
sections are compressed. --compress-debug-sections=none is equivalent to
--nocompress-debug-sections. --compress-debug-sections=zlib and
--compress-debug-sections=zlib-gnu are equivalent to
--compress-debug-sections. --compress-debug-sections=zlib-gabi compresses
DWARF debug sections with SHF_COMPRESSED from the ELF ABI. No linker
changes are required to support SHF_COMPRESSED.
bfd/
* archive.c (_bfd_get_elt_at_filepos): Also copy BFD_COMPRESS_GABI
bit.
* bfd.c (bfd::flags): Increase size to 18 bits.
(BFD_COMPRESS_GABI): New.
(BFD_FLAGS_SAVED): Add BFD_COMPRESS_GABI.
(BFD_FLAGS_FOR_BFD_USE_MASK): Likewise.
(bfd_update_compression_header): New fuction.
(bfd_check_compression_header): Likewise.
(bfd_get_compression_header_size): Likewise.
(bfd_is_section_compressed_with_header): Likewise.
* compress.c (MAX_COMPRESSION_HEADER_SIZE): New.
(bfd_compress_section_contents): Return the uncompressed size if
the full section contents is compressed successfully. Support
converting from/to .zdebug* sections.
(bfd_get_full_section_contents): Call
bfd_get_compression_header_size to get compression header size.
(bfd_is_section_compressed): Renamed to ...
(bfd_is_section_compressed_with_header): This. Add a pointer
argument to return compression header size.
(bfd_is_section_compressed): Use it.
(bfd_init_section_decompress_status): Call
bfd_get_compression_header_size to get compression header size.
Return FALSE if uncompressed section size is 0.
* elf.c (_bfd_elf_make_section_from_shdr): Support converting
from/to .zdebug* sections.
* bfd-in2.h: Regenerated.
binutils/
* objcopy.c (do_debug_sections): Add compress_zlib,
compress_gnu_zlib and compress_gabi_zlib.
(copy_options): Use optional_argument on compress-debug-sections.
(copy_usage): Update --compress-debug-sections.
(copy_file): Handle compress_zlib, compress_gnu_zlib and
compress_gabi_zlib.
(copy_main): Handle
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* doc/binutils.texi: Document
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
binutils/testsuite/
* compress.exp: Add tests for
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* binutils-all/dw2-3.rS: New file.
* binutils-all/dw2-3.rt: Likewise.
* binutils-all/libdw2-compressedgabi.out: Likewise.
gas/
* as.c (show_usage): Update --compress-debug-sections.
(std_longopts): Use optional_argument on compress-debug-sections.
(parse_args): Handle
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* as.h (compressed_debug_section_type): New.
(flag_compress_debug): Change type to compressed_debug_section_type.
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
* write.c (compress_debug): Set BFD_COMPRESS_GABI for
--compress-debug-sections=zlib-gabi. Call
bfd_get_compression_header_size to get compression header size.
Don't rename section name for --compress-debug-sections=zlib-gabi.
* config/tc-i386.c (compressed_debug_section_type): Set to
COMPRESS_DEBUG_ZLIB.
* doc/as.texinfo: Document
--compress-debug-sections={none|zlib|zlib-gnu|zlib-gabi}.
gas/testsuite/
* gas/i386/dw2-compressed-1.d: New file.
* gas/i386/dw2-compressed-2.d: Likewise.
* gas/i386/dw2-compressed-3.d: Likewise.
* gas/i386/x86-64-dw2-compressed-2.d: Likewise.
* gas/i386/i386.exp: Run dw2-compressed-2, dw2-compressed-1,
dw2-compressed-3 and x86-64-dw2-compressed-2.
ld/testsuite/
* ld-elf/compress.exp: Add a test for
--compress-debug-sections=zlib-gabi.
(build_tests): Add 2 tests for --compress-debug-sections=zlib-gabi.
(run_tests): Likewise.
Verify linker output with zlib-gabi compressed debug input.
* ld-elf/compressed1a.d: New file.
* ld-elf/compressed1b.d: Likewise.
* ld-elf/compressed1c.d: Likewise.
PR binutils/18087
gas * doc/as.texinfo: Note that when gas compresses debug sections the
compression is only performed if it makes the section smaller.
* write.c (compress_debug): Do not compress a debug section if
doing so would make it larger.
tests * gas/i386/dw2-compress-1.d: Do not expect the .debug_abbrev or
.debug_info sections to be compressed.
binu * doc/binutils.texi: Note that when objcopy compresses debug
sections the compression is only performed if it makes the section
smaller.
bfd * coffgen.c (make_a_section_from_file): Only prepend a z to a
debug section's name if the section was actually compressed.
* elf.c (_bfd_elf_make_section_from_shdr): Likewise.
* compress.c (bfd_init_section_compress_status): Do not compress
the section if doing so would make it bigger. In such cases leave
the section alone and return COMPRESS_SECTION_NONE.
PR binutils/18064
* doc/binutils.texi (objcopy): Extend description of
--add-gnu-debuglink option to explain that the separate debug info
file must exist. Add a description of what to do if the debug
info file is built in one place but then installed into a separate
location.
New option for objcopy --update-section allows the contents of a section
to be updated while maintaining the section flags, and, for ELF files,
the section to segment mapping.
New test uses --dump-section and --update-section to check that a
section can be made larger and smaller with an update.
binutils/ChangeLog:
* objcopy.c (update_sections): New list.
(command_line_switch): Add OPTION_UPDATE_SECTION.
(copy_options): Add update-section.
(copy_usage): Document new option.
(is_update_section): New function.
(is_strip_section_1): Add check for attempt to update and remove
the same section.
(copy_object): Update size and content of requested sections.
(skip_section): Don't copy for updated sections.
(copy_main): Handle --update-section.
* doc/binutils.texi (objcopy): Add description of --update-section
option.
* NEWS: Mention --update-section option.
binutils/testsuite/ChangeLog:
* binutils-all/update-1.s: New file.
* binutils-all/update-2.s: New file.
* binutils-all/update-3.s: New file.
* binutils-all/update-4.s: New file.
* binutils-all/update-section.exp: New file.
PR binutils/17552, binutils/17533
* bucomm.c (is_valid_archive_path): New function. Returns false
for absolute pathnames and pathnames that include /../.
* bucomm.h (is_valid_archive_path): Add prototype.
* ar.c (extract_file): Use new function to check for valid
pathnames when extracting files from an archive.
* objcopy.c (copy_archive): Likewise.
* doc/binutils.texi: Update documentation to mention the
limitation on pathname of archive members.
--all option which displays text from anywhere in the input file(s). The
default used to be --data, which only displays text from loadable data sections,
but this requires the use of the BFD library. Since the BFD library almost
certainly still contains buffer overrun and/or memory corruption bugs, and
since the strings program is often used to examine malicious code, it was
decided that the --data option option represents a possible security risk.
* strings.c: Add new command line option --data to only scan the
initialized, loadable data secions of binaries. Choose the
default behaviour of --all or --data based upon a configure
option.
* doc/binutils.texi (strings): Update documentation. Include
description of why the --data option might be unsafe.
* configure.ac: Add new option --disable-default-strings-all which
restores the old behaviour of strings using --data by default. If
the option is not used make strings use --all by default.
* NEWS: Mention the new behaviour of strings.
* configure: Regenerate.
* config.in: Regenerate.
This removes usage of the obsolete AC_INIT and AM_INIT_AUTOMAKE in all
binutils configure.in files. The BFD version is now in bfd/version.m4
rather than bfd/configure.in, which allows automake to automatically
track this dependency.
bfd/
* version.m4: New file.
* configure.in: Include version.m4.
(AC_INIT): Update.
* Makefile.am (RELEASE): Delete.
(bfdver.h): Depend on development.sh, use instead of RELEASE.
* Makefile.in: Regenerate.
* doc/Makefile.in: Regenerate.
opcodes/
* configure.in: Include bfd/version.m4.
(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
(BFD_VERSION): Delete.
* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
* configure: Regenerate.
* Makefile.in: Regenerate.
binutils/
* configure.in: Include bfd/version.m4.
(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
(BFD_VERSION): Delete.
* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
* configure: Regenerate.
* Makefile.in: Regenerate.
* doc/Makefile.in: Regenerate.
gas/
* configure.in: Include bfd/version.m4.
(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
(BFD_VERSION): Delete.
* configure.com: Get bfd version from bfd/version.m4.
* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
* configure: Regenerate.
* Makefile.in: Regenerate.
* doc/Makefile.in: Regenerate.
gprof/
* configure.in: Include bfd/version.m4.
(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
(BFD_VERSION): Delete.
* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
* configure: Regenerate.
* Makefile.in: Regenerate.
ld/
* configure.in: Include bfd/version.m4.
(AC_INIT, AM_INIT_AUTOMAKE): Use modern form.
(BFD_VERSION): Delete.
* Makefile.am (CONFIG_STATUS_DEPENDENCIES): Remove bfd/configure.in.
* configure: Regenerate.
* Makefile.in: Regenerate.
* strings.c: Add -w/--include-all-whitespace option to include any
whitespace character in the displayed strings.
* NEWS: Mention the new feature.
* doc/binutils.texi (strings): Document the new command line
option.
ChangeLog:
binutils/
* doc/binutils.texi: Document the disassemble MIPS XPA instructions
command line option.
gas/
* config/tc-mips.c (options): Add OPTION_XPA and OPTION_NO_XPA.
(md_longopts): Add xpa and no-xpa command line options.
(mips_ases): Add MIPS XPA ASE.
(mips_cpu_info_table): Update p5600 entry to allow the XPA ASE.
* doc/as.texinfo: Document the MIPS XPA command line options.
* doc/c-mips.texi: Document the MIPS XPA command line options,
and assembler directives.
gas/testsuite/
* gas/mips/mips.exp: Add xpa tests.
* gas/mips/xpa.s: New test.
* gas/mips/xpa.d: Likewise.
include/
* opcode/mips.h (ASE_XPA): New define.
opcodes/
* mips-dis.c (mips_arch_choices): Update mips32r2 and mips64r2
to allow the MIPS XPA ASE.
(parse_mips_dis_option): Process the -Mxpa option.
* mips-opc.c (XPA): New define.
(mips_builtin_opcodes): Add MIPS XPA instructions and move the
locations of the ctc0 and cfc0 instructions.
option coming *after* the command option not before it.
PR binutils/16652
* doc/binutils.texi (ar cmdline): Move --plugin command line
option to after the command option.
* doc/binutils.texi: Document -Mvirt disassembler option.
gas/ChangeLog:
* config/tc-mips.c (struct mips_set_options): New ase_virt field.
(mips_opts): Update for the new field.
(file_ase_virt): New variable.
(ISA_SUPPORTS_VIRT_ASE): New macro.
(ISA_SUPPORTS_VIRT64_ASE): New macro.
(MIPS_CPU_ASE_VIRT): New define.
(is_opcode_valid): Handle ase_virt.
(macro_build): Handle "+J".
(validate_mips_insn): Likewise.
(mips_ip): Likewise.
(enum options): Add OPTION_VIRT and OPTION_NO_VIRT.
(md_longopts): Add mvirt and mnovirt
(md_parse_option): Handle OPTION_VIRT and OPTION_NO_VIRT.
(mips_after_parse_args): Handle ase_virt field.
(s_mipsset): Handle "virt" and "novirt".
(mips_elf_final_processing): Add a comment about virt ASE might need a new flag.
(md_show_usage): Print out the usage of -mvirt and mno-virt options.
* doc/c-mips.texi: Document -mvirt and -mno-virt.
Document ".set virt" and ".set novirt".
gas/testsuite/ChangeLog:
* gas/mips/mips.exp: Run virt and virt64 testcases.
* gas/mips/virt.d: New file.
* gas/mips/virt.s: New file.
* gas/mips/virt64.d: New file.
* gas/mips/virt64.s: New file.
include/opcode/ChangeLog:
* mips.h (OP_MASK_CODE10): Correct definition.
(OP_SH_CODE10): Likewise.
Add a comment that "+J" is used now for OP_*CODE10.
(INSN_ASE_MASK): Update.
(INSN_VIRT): New macro.
(INSN_VIRT64): New macro
opcodes/ChangeLog:
* mips-dis.c (mips_arch_choices): Add INSN_VIRT to mips32r2 .
Add INSN_VIRT and INSN_VIRT64 to mips64r2.
(parse_mips_dis_option): Handle the virt option.
(print_insn_args): Handle "+J".
(print_mips_disassembler_options): Print out message about virt64.
* mips-opc.c (IVIRT): New define.
(IVIRT64): New define.
(mips_builtin_opcodes): Add dmfgc0, dmtgc0, hypcall, mfgc0, mtgc0,
tlbgr, tlbgwi, tlbginv, tlbginvf, tlbgwr, tlbgp VIRT instructions.
Move rfe to the bottom as it conflicts with tlbgp.
* objcopy.c (enum change_action): Delete.
(struct section_list): Delete remove, copy, change_vma, change_lma
and set_flags fields. Add context field.
(find_section_list): Add a context parameter. Add support for
wildcard characters in section names.
(is_strip_section): Check for sections being both copied and
removed.
(copy_object): Pass context to find_section_list.
(setup_section): Likewise.
(copy_section): Likewise.
(copy_main): Likewise.
* doc/binutils: Document the new behaviour.
* NEWS: Mention the new feature
* objcopy.c (deterministic): Make int rather than bfd_boolean,
initialize to -1.
(strip_options, copy_options): Add -U/--disable-deterministic-archives.
(default_deterministic): New function.
(strip_main, copy_main): Handle -U. Call default_deterministic.
(copy_usage, strip_usage): Describe -U. Cite whether -D or -U is
the default based on DEFAULT_AR_DETERMINISTIC.
* doc/binutils.texi (objcopy, strip): Describe -U and effect of
configure options on -D.
* ar.c (default_deterministic): Comment fix.
Correct ordering of M68HC11 entry.
* doc/binutils.texi: Fix ordering of top level nodes.
Replace erroneous uses of @itemx with @item.
* bfd.texinfo: Replace @ with @@ when it is part of the text.
* dwarf.c (dwarf_check): New global flag.
(fetch_indexed_string): New function.
(fetch_indexed_value): New function.
(get_FORM_name): Add DW_FORM_GNU_str_index and DW_FORM_GNU_addr_index.
(decode_location_expression): Add DW_OP_GNU_addr_index.
(read_and_display_attr_value): Add DW_FORM_GNU_str_index,
DW_FORM_GNU_addr_index, DW_AT_GNU_addr_base, and DW_AT_GNU_ranges_base.
(get_AT_name): Add new attributes for Fission.
(process_debug_info): Load new debug sections for Fission.
(load_debug_info): Check for .debug_info.dwo section.
(display_loc_list, display_loc_list_dwo): New functions.
(display_debug_loc): Move logic to above two functions.
(display_debug_info): Choose abbrev section based on info section.
(display_debug_types): Likewise.
(display_trace_info): Likewise.
(comp_addr_base): New function.
(display_debug_addr): New function.
(display_debug_str_offsets): New function.
(display_debug_ranges): Allow missing range lists. Suppress
diagnostics if dwarf_check not set.
(debug_displays): Add column to select abbrev section.
* dwarf.h (enum dwarf_section_display_enum): Add new debug sections
for Fission.
(struct dwarf_section): Add abbrev_sec field.
(struct dwarf_section_display): New type.
(debug_info): Add addr_base, ranges_base fields.
(dwarf_check): New global variable.
* objdump.c (usage): Add --dwarf-check option.
(enum option_values): Add OPTION_DWARF_CHECK.
(long_options): Add --dwarf-check.
(main): Likewise.
* readelf.c (OPTION_DWARF_CHECK): New macro.
(options): Add --dwarf-check.
(parse_args): Likewise.
(process_section_headers): Use const_strneq instead of
streq.
to strip and objcopy.
* objcopy.c (deterministic): New global variable.
(strip_options): Add --enable-deterministic-archives.
(copy_options): Likewise.
(copy_usage): Likewise.
(strip_usage): Likewise.
(copy_archive): When stripping all, don't add archive map; set
deterministic output when requested.
(strip_main): Add -D/--enable-deterministic-archives option.
(copy_main): Likewise.
argument. Set DEFAULT_AR_DETERMINISTIC to 1 or 0 accordingly.
* configure: Regenerated.
* config.in: Regenerated.
* ar.c (deterministic): Initialize to -1.
(decode_options, ranlib_main): Grok U option.
(usage, ranlib_usage): Mention U; say for D and U which is the default.
(default_deterministic): New function.
(ranlib_main): Call it.
(main): Likewise. Make newer_only && deterministic error
non-fatal if it was just DEFAULT_AR_DETERMINISTIC and not the D option.
* doc/binutils.texi (ar cmdline, ranlib): Document U modifier and
--enable-deterministic-archives behavior.
