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.
This patch adds --enable-separate-code to ld configure to turn on
-z separate-code by default and enables it by default for Linux/x86.
This avoids mixing code pages with data to improve cache performance
as well as security.
To reduce x86-64 executable and shared object sizes, the maximum page
size is reduced from 2MB to 4KB when -z separate-code is turned on by
default. Note: -z max-page-size= can be used to set the maximum page
size.
We compared SPEC CPU 2017 performance before and after this change on
Skylake server. There are no any significant performance changes.
Everything is mostly below +/-1%.
bfd/
* config.in: Regenerated.
* configure: Likewise.
* configure.ac: Add --enable-separate-code.
(DEFAULT_LD_Z_SEPARATE_CODE): New AC_DEFINE_UNQUOTED. Default
to 1 for Linux/x86 targets,
* elf64-x86-64.c (ELF_MAXPAGESIZE): Set to 0x1000 if
DEFAULT_LD_Z_SEPARATE_CODE is 1.
ld/
* NEWS: Mention --enable-separate-code.
* configure.ac: Add --enable-separate-code.
(DEFAULT_LD_Z_SEPARATE_CODE): New AC_DEFINE_UNQUOTED.
* configure.tgt: Default ac_default_ld_z_separate_code to 1 for
Linux/x86 targets.
* config.in: Regenerated.
* configure: Likewise.
* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set
link_info.separate_code DEFAULT_LD_Z_SEPARATE_CODE.
Most of the emultempl/*.em error/warning messages do not currently
appear in ld.pot, and fixing that is not simply a matter of adding
missing files to POTFILES. The difficulty is the shell-script
quoting, for example aarch64elf.em:PARSE_AND_LIST_OPTIONS "Don'\''t".
I suppose you could avoid contractions like "don't" but I'm unsure as
to whether gettext could handle everything in the emulparams scripts.
The right thing to do is feed the generated C files to gettext, as
this patch does. The patch just copies what is already done in bfd/
for generated files.
* Makefile.am (EMULATION_FILES, POTFILES): Delete.
(SRC_POTFILES, BLD_POTFILES): Define.
(po/POTFILES.in): Delete rule.
(po/SRC-POTFILES.in, po/BLD-POTFILES.in): New rules.
* configure.ac: Add AC_CONFIG_COMMANDS to create po/Makefile.
* po/Make-in (DISTFILES): Remove POTFILES.in, add SRC-POTFILES.in
and BLD-POTFILES.in.
(POTFILES): Delete.
(SRC-POTFILES, BLD-POTFILES): Define place marker.
(ld.pot): Build from SRC-POTFILES plus BLD-POTFILES.
(distclean, maintainer-clean): Tidy up new files.
(POTFILES, POTFILES.in): Delete rules.
(SRC-POTFILES, BLD-POTFILES, SRC-POTFILES.in, BLD-POTFILES.in):
New rules.
(Makefile): Depend on SRC-POTFILES and BLD-POTFILES.
* po/SRC-POTFILES.in: Rename from po/POTFILES.in.
* po/BLD-POTFILES.in: New file.
* Makefile.in: Regenerate.
* configure: Regenerate.
"--rpath ../bfd/.libs ../bfd/.libs/libbfd.so" isn't a valid compiler
command-line option. We should use -Wl,--rpath instead of --rpath.
PR ld/21923
* configure.ac (TESTBFDLIB): Replace --rpath with -Wl,--rpath
for --disable-static.
* configure: Regenerated.
This option switches on ld.bfd --enable-new-dtags by default.
* configure.ac: Add --enable-new-dtags option.
* ldmain.c: Set link_info.new_dtags to 1 if when --enable-new-dtags is
switched on.
* configure: Regenerate.
* config.in: Regenerate.
Many of the ld tests are not run for cross builds, in some cases
because the test needs to run a newly linked executable, and in others
simply because it was easier to write the test for native only. Even
when a test needs to run, it's good to compile and link to exercise
the linker. So that's what this patch does. I've also rid us of
the old ld_link procedure with all the HOSTING_CRT0 etc. setup. It's
much simpler to just link with $CC.
This does mean that a cross build with cross-compiler installed but
no cross C-library will give lots of failures. If that turns out to
be too annoying, I guess we can write a tcl procedure to detect it and
not run all the extra tests.
* Makefile.am (bootstrap): Delete rule.
(ld-partial, ld1, ld1-full, ld2, ld3): Likewise.
(HOSTING_CRT0, HOSTING_SCRT0): Don't define.
(HOSTING_LIBS, HOSTING_SLIBS, HOSTING_EMU): Likewise.
* configure.ac (HOSTING_CRT0, HOSTING_SCRT0): Don't define.
(HOSTING_LIBS, HOSTING_SLIBS): Likewise.
* configure.host (HOSTING_CRT0, HOSTING_LIBS): Don't define.
* Makefile.in: Regenerate.
* configure: Regenerate.
* testsuite/config/default.exp (get_link_files): Delete.
(HOSTING_CRT0, HOSTING_SCRT0, HOSTING_LIBS, HOSTING_SLIBS): Don't
define.
(ld_simple_link): Delete.
* testsuite/lib/ld-lib.exp (default_ld_link): Delete
(default_ld_simple_link): Rename to default_ld_link.
(ld_simple_link_defsyms): Rename to ld_link_defsyms.
(run_ld_link_tests): Use ld_link, not ld_simple_link.
(run_cc_link_tests): Likewise.
(run_ld_link_exec_tests): Use $CC or $CXX to link, not $ld.
Don't run exe when not native, and return unsupported.
* testsuite/ld-bootstrap/bootstrap.exp: Create gccld1 etc. dirs.
Link ld1 etc. using $CC.
* testsuite/ld-cdtest/cdtest.exp: Link cdtest using $CC.
* testsuite/ld-checks/checks.exp: Use ld_link, not ld_simple_link.
* testsuite/ld-cygwin/exe-export.exp: Likewise.
* testsuite/ld-elf/binutils.exp: Likewise.
* testsuite/ld-elf/eh-group.exp: Likewise.
* testsuite/ld-elf/exclude.exp: Likewise.
* testsuite/ld-elf/frame.exp: Likewise.
* testsuite/ld-elf/sec-to-seg.exp: Likewise.
* testsuite/ld-elf/tls_common.exp: Likewise.
* testsuite/ld-elfcomm/elfcomm.exp: Likewise.
* testsuite/ld-fastcall/fastcall.exp: Likewise.
* testsuite/ld-gc/gc.exp: Likewise.
* testsuite/ld-ifunc/binutils.exp: Likewise.
* testsuite/ld-mep/mep.exp: Likewise.
* testsuite/ld-mips-elf/mips-elf-flags.exp: Likewise.
* testsuite/ld-mn10300/mn10300.exp: Likewise.
* testsuite/ld-nios2/nios2.exp: Likewise.
* testsuite/ld-pe/pe-compile.exp: Likewise.
* testsuite/ld-pe/pe-run.exp: Likewise.
* testsuite/ld-pe/pe-run2.exp: Likewise.
* testsuite/ld-plugin/plugin.exp: Likewise.
* testsuite/ld-scripts/align.exp: Likewise.
* testsuite/ld-scripts/alignof.exp: Likewise.
* testsuite/ld-scripts/assert.exp: Likewise.
* testsuite/ld-scripts/defined.exp: Likewise.
* testsuite/ld-scripts/extern.exp: Likewise.
* testsuite/ld-scripts/log2.exp: Likewise.
* testsuite/ld-scripts/map-address.exp: Likewise.
* testsuite/ld-scripts/phdrs.exp: Likewise.
* testsuite/ld-scripts/phdrs2.exp: Likewise.
* testsuite/ld-scripts/script.exp: Likewise.
* testsuite/ld-scripts/section-flags.exp: Likewise.
* testsuite/ld-scripts/sizeof.exp: Likewise.
* testsuite/ld-scripts/sysroot-prefix.exp: Likewise.
* testsuite/ld-scripts/weak.exp: Likewise.
* testsuite/ld-selective/selective.exp: Likewise.
* testsuite/ld-sh/sh.exp: Likewise.
* testsuite/ld-sh/sh64/relax.exp: Likewise.
* testsuite/ld-sh/sh64/relfail.exp: Likewise.
* testsuite/ld-srec/srec.exp: Likewise.
* testsuite/ld-tic6x/tic6x.exp: Likewise.
* testsuite/ld-undefined/weak-undef.exp: Likewise.
* testsuite/ld-versados/versados.exp: Likewise.
* testsuite/ld-x86-64/dwarfreloc.exp: Likewise.
* testsuite/ld-xtensa/coalesce.exp: Likewise.
* testsuite/ld-xtensa/diff_overflow.exp: Likewise.
* testsuite/ld-xtensa/lcall.exp: Likewise.
* testsuite/ld-elf/audit.exp: Run non-native too.
* testsuite/ld-elf/compress.exp: Likewise. Replace ld options with
gcc -Wl, options.
* testsuite/ld-elf/dwarf.exp: Run non-native too. Use ld_link,
not ld_simple_link. Add -Wl,--no-as-needed to some tests.
* testsuite/ld-elf/elf.exp: Run non-native too. Formatting.
* testsuite/ld-elf/indirect.exp: Run non-native too. Add
-Wl,--no-as-needed to most tests.
* testsuite/ld-elf/shared.exp: Run non-native too. Use braces
to simplify quoting. Set run_tests using [list] rather than
brace assignment to expand $extralibs. Add -Wl,--no-as-needed
to many test. Prefix ld options with -Wl,.
(mix_pic_and_non_pic): Don't run exe if not native.
* testsuite/ld-elf/wrap.exp: Run non-native too. Add
-Wl,--no-as-needed and prefix ld options with -Wl,.
* testsuite/ld-elfvers/vers.exp: Run non-native too. Use ld_link,
not ld_simple_link.
* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
(visibility_test): Don't run exe if not native.
* testsuite/ld-elfweak/elfweak.exp: Run non-native too. Use ld_link,
not ld_simple_link.
(build_exec): Don't run exe if not native.
* testsuite/ld-ifunc/ifunc.exp: Run non-native too. Use ld_link,
not ld_simple_link. Link using $CC. Add -Wl,--no-as-needed
to some tests and prefix ld options with -Wl,. Expect GNU
for hppa-linux even when no ifuncs. Delete cleanup.
* testsuite/ld-pie/pie.exp: Run non-native too.
* testsuite/ld-plugin/lto.exp: Likewise.
* testsuite/ld-shared/shared.exp: Likewise. Use ld_link,
not ld_simple_link.
(shared_test): Don't run exe if not native.
* testsuite/ld-size/size.exp: Run non-native too. Add
-Wl,--no-as-needed to some tests. Prefix ld options with -Wl,.
* testsuite/ld-unique/unique.exp: Run non-native too. Use ld_link,
not ld_simple_link. Link using $CC. Add -Wl,--no-as-needed
to some tests and prefix ld options with -Wl,. Expect GNU
for hppa-linux even when no unique syms. Delete cleanup.
* testsuite/ld-x86-64/tls.exp: Add -Wl,--no-as-needed to some
tests and prefix ld options with -Wl,.
* testsuite/ld-x86-64/x86-64.exp: Use ld_link, not ld_simple_link.
Add -Wl,--no-as-needed to some tests. Prefix ld options with -Wl,.
* emultempl/elf32.em (search_needed): Remove use of getauxval and
inclusion of <sys/auxv.h>. Replace support for $PLATFORM with a
warning message.
* configure.ac (AC_CHECK_FUNCS): Remove getauxval.
* configure: Regenerate.
* config.in: Regenerate.
Add a configure option --enable-relro to decide whether -z relro should
be enabled in ELF linker by default. Default to yes for all Linux
targets, except FRV, HPPA, IA64 and MIPS, since many relro tests fail
on these targets.
PR ld/20283
* NEWS: Mention --enable-relro.
* configure.ac: Add --enable-relro.
(DEFAULT_LD_Z_RELRO): New. Set by --enable-relro.
* configure.tgt (ac_default_ld_z_relro): Default it to 1 for
some Linux targets.
* config.in: Regenerated.
* configure: Likewise.
* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set
link_info.relro to DEFAULT_LD_Z_RELRO.
* testsuite/config/default.exp (ld_elf_shared_opt): New.
* testsuite/lib/ld-lib.exp (run_dump_test): Pass
$ld_elf_shared_opt to ld for ELF targets with shared object
support.
(run_ld_link_tests): Likewise.
PR gas/19109
. * configure.ac: Note the 'none' is an acceptable argument to
--enable-compressed-debug-sections.
* configure: Regenerate.
gas * configure.ac: Restore --enable-compressed-debug-sections.
Do not enable compressed debug sections by default for x86 Linux
targets.
* configure: Regenerate.
ld * configure.ac: Add --enable-compressed-debug-sections.
* configure: Regenerate.
* config.in: Regenerate.
* ld.texinfo: Document how to determine the default action for
debug sections.
* ldmain.c (main): If DEFAULT_FLAG_COMPRESS_DEBUG is defined then
set the compress_debug field of the link_info structure to
zlib-gabi.
* lexsup.c (elf_static_list_options): Output the default setting
for the --compress-debug-sections option.
* NEWS: Mention the new configure option.
nios2-linux has an emulation named "nios2linux", and happens to not include
another extra emulation with a name matching *elf*. This makes nios2-linux
left out of the ELF options printing targets, which is unintended.
* configure.ac (AC_PROG_GREP): Check for grep program.
(elf_list_options,elf_shlib_list_options,elf_plt_unwind_list_options):
Enable ELF option printing for emulations containing
'TEMPLATE_NAME=elf32'.
* configure: Regenerate.
When --enable-targets=all is used with non-ELF target, we should enable
ELF ld_list_options.
* configure.ac (elf_list_options): Set to TRUE for
--enable-targets=all.
(elf_shlib_list_options): Likewise.
(elf_plt_unwind_list_options): Likewise.
* configure: Regenerated.
This patch uses mmap if it is available and works. It also caches the
view buffer for get_view.
* configure.ac: Add AC_FUNC_MMAP.
* config.in: Regenerated.
* configure: Likewise.
* plugin.c: Include <sys/mman.h>.
(MAP_FAILED): New. Defined if not defined.
(PROT_READ): Likewise.
(MAP_PRIVATE): Likewise.
(view_buffer_t): New.
(plugin_input_file_t): Add view_buffer.
(get_view): Try mmap and cache the view buffer.
(plugin_maybe_claim): Initialize view_buffer.
This also makes --enable-plugins default to on for hosts that can
support plugins, so we have consistent lto toolchain support. The
ACX_LARGEFILE moves aren't strictly necessary, but are harmless and
will be necessary if plugin support is extended to more hosts via
libtool's dlopen support. I started down that path then decided it
was more work than I was interested in doing. (ACX_LARGEFILE invokes
AC_PLUGINS.)
config/
* plugins.m4: Test for dlfcn.h or windows.h here to set default
for --enable-plugins. Report error if someone tries to enable
plugins on a host we don't support.
bfd/
* configure.ac: Delete redundant plugin related checks.
* configure: Regenerate.
binutils/
* configure.ac: Move ACX_LARGEFILE after LT_INIT.
* config.in: Regenerate.
* configure: Regenerate.
gas/
* configure.ac: Move ACX_LARGEFILE after LT_INIT.
* config.in: Regenerate.
* configure: Regenerate.
gprof/
* configure.ac: Move ACX_LARGEFILE after LT_INIT.
* configure: Regenerate.
* gconfig.in: Regenerate.
ld/
* configure.ac: Move AC_PROG_CC and other macros earlier. Delete
plugin checks now done in config/plugins.m4.
* config.in: Regenerate.
* configure: Regenerate.
Alan Modra
Simon Marchi
H.J. Lu
Nick Clifton
Romain Geissler
Slava Barinov
Chung-Lin Tang