The GCC_ENABLE_PLUGINS configure logic for detecting whether -rdynamic
is necessary and supported uses an appropriate objdump for $host
binaries (running on $build) in cases where $host is $build or
$target.
However, it is missing such logic in the case where $host is neither
$build nor $target, resulting in the compilers not being linked with
-rdynamic and plugins not being usable with such a compiler. In fact
$ac_cv_prog_OBJDUMP, as used when $build = $host, is always an objdump
for $host binaries that runs on $build; that is, it's appropriate to
use in this case as well.
Tested in such a configuration that it does result in cc1 being linked
with -rdynamic as expected. Also bootstrapped with no regressions for
x86_64-pc-linux-gnu.
config/
* gcc-plugin.m4 (GCC_ENABLE_PLUGINS): Use
export_sym_check="$ac_cv_prog_OBJDUMP -T" also when host is not
build or target.
gcc/
* configure: Regenerate.
libcc1/
* configure: Regenerate.
AR from older binutils doesn't work with --plugin and rc:
[hjl@gnu-cfl-2 bin]$ touch foo.c
[hjl@gnu-cfl-2 bin]$ ar --plugin /usr/libexec/gcc/x86_64-redhat-linux/10/liblto_plugin.so rc libfoo.a foo.c
[hjl@gnu-cfl-2 bin]$ ./ar --plugin /usr/libexec/gcc/x86_64-redhat-linux/10/liblto_plugin.so rc libfoo.a foo.c
./ar: no operation specified
[hjl@gnu-cfl-2 bin]$ ./ar --version
GNU ar (Linux/GNU Binutils) 2.29.51.0.1.20180112
Copyright (C) 2018 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
[hjl@gnu-cfl-2 bin]$
Check if AR works with --plugin and rc before passing --plugin to AR and
RANLIB.
ChangeLog:
* configure: Regenerated.
* libtool.m4 (_LT_CMD_OLD_ARCHIVE): Check if AR works with
--plugin and rc before enabling --plugin.
config/ChangeLog:
* gcc-plugin.m4 (GCC_PLUGIN_OPTION): Check if AR works with
--plugin and rc before enabling --plugin.
gcc/ChangeLog:
* configure: Regenerate.
libatomic/ChangeLog:
* configure: Regenerate.
libbacktrace/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
libffi/ChangeLog:
* configure: Regenerate.
libgfortran/ChangeLog:
* configure: Regenerate.
libgm2/ChangeLog:
* configure: Regenerate.
libgomp/ChangeLog:
* configure: Regenerate.
libiberty/ChangeLog:
* configure: Regenerate.
libitm/ChangeLog:
* configure: Regenerate.
libobjc/ChangeLog:
* configure: Regenerate.
libphobos/ChangeLog:
* configure: Regenerate.
libquadmath/ChangeLog:
* configure: Regenerate.
libsanitizer/ChangeLog:
* configure: Regenerate.
libssp/ChangeLog:
* configure: Regenerate.
libstdc++-v3/ChangeLog:
* configure: Regenerate.
libvtv/ChangeLog:
* configure: Regenerate.
lto-plugin/ChangeLog:
* configure: Regenerate.
zlib/ChangeLog:
* configure: Regenerate.
$ac_cv_prog_OBJDUMP contains the --host OBJDUMP that
libtool has inferred. Current config/gcc-plugin.m4 does
not respect the user's choice for OBJDUMP.
PR plugins/95648
config/
* gcc-plugin.m4: Use libtool's $ac_cv_prog_OBJDUMP.
gcc/
* configure: Regenerate.
libcc1/
* configure: Regenerate.
Sync with binutils for building binutils with LTO:
50ad1254d50 GCC: Pass --plugin to AR and RANLIB
Detect GCC LTO plugin. Pass --plugin to AR and RANLIB to support LTO
build.
ChangeLog:
* Makefile.tpl (AR): Add @AR_PLUGIN_OPTION@
(RANLIB): Add @RANLIB_PLUGIN_OPTION@.
* configure.ac: Include config/gcc-plugin.m4.
AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION.
* libtool.m4 (_LT_CMD_OLD_ARCHIVE): Pass --plugin to AR and
RANLIB if possible.
* Makefile.in: Regenerated.
* configure: Likewise.
config/
* gcc-plugin.m4 (GCC_PLUGIN_OPTION): New.
libiberty/
* Makefile.in (AR): Add @AR_PLUGIN_OPTION@
(RANLIB): Add @RANLIB_PLUGIN_OPTION@.
(configure_deps): Depend on ../config/gcc-plugin.m4.
* configure.ac: AC_SUBST AR_PLUGIN_OPTION and
RANLIB_PLUGIN_OPTION.
* aclocal.m4: Regenerated.
* configure: Likewise.
zlib/
* configure: Regenerated.
We now use a C++ compiler so that we need to process
CXXFLAGS as well as CFLAGS in the gcc-plugin config
fragment.
Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
config/ChangeLog:
* gcc-plugin.m4: Save and process CXXFLAGS.
gcc/ChangeLog:
* configure: Regenerate.
libcc1/ChangeLog:
* configure: Regenerate.
2014-10-27 Phil Muldoon <pmuldoon@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
Tom Tromey <tromey@redhat.com>
* aclocal.m4: New file.
* callbacks.cc: New file.
* callbacks.hh: New file.
* cc1plugin-config.h.in: New file.
* configure: New file.
* configure.ac: New file.
* connection.cc: New file.
* connection.hh: New file.
* findcomp.cc: New file.
* findcomp.hh: New file.
* libcc1.cc: New file.
* libcc1plugin.sym: New file.
* libcc1.sym: New file.
* Makefile.am: New file.
* Makefile.in: New file.
* marshall.cc: New file.
* marshall.hh: New file.
* names.cc: New file.
* names.hh: New file.
* plugin.cc: New file.
* rpc.hh: New file.
* status.hh: New file.
2014-10-27 Phil Muldoon <pmuldoon@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
Tom Tromey <tromey@redhat.com>
* gcc-c-fe.def: New file.
* gcc-c-interface.h: New file.
* gcc-interface.h: New file.
2014-10-27 Phil Muldoon <pmuldoon@redhat.com>
Tom Tromey <tromey@redhat.com>
* c-tree.h (enum c_oracle_request): New.
(c_binding_oracle_function): New typedef.
(c_binding_oracle, c_pushtag, c_bind): Declare.
* c-decl.c (c_binding_oracle): New global.
(I_SYMBOL_CHECKED): New macro.
(i_symbol_binding): New function.
(I_SYMBOL_BINDING, I_SYMBOL_DECL): Redefine.
(I_TAG_CHECKED): New macro.
(i_tag_binding): New function.
(I_TAG_BINDING, I_TAG_DECL): Redefine.
(I_LABEL_CHECKED): New macro.
(i_label_binding): New function.
(I_LABEL_BINDING, I_LABEL_DECL): Redefine.
(c_print_identifier): Save and restore c_binding_oracle.
(c_pushtag, c_bind): New functions.
2014-10-27 Phil Muldoon <pmuldoon@redhat.com>
Tom Tromey <tromey@redhat.com>
* aclocal.m4, configure: Rebuild.
* Makefile.in (aclocal_deps): Add gcc-plugin.m4.
* configure.ac: Use GCC_ENABLE_PLUGINS.
* stor-layout.c (finish_bitfield_layout): Now public. Change
argument type to 'tree'.
(finish_record_layout): Update.
* stor-layout.h (finish_bitfield_layout): Declare.
2014-10-27 Tom Tromey <tromey@redhat.com>
* gcc-plugin.m4: New file.
2014-10-27 Phil Muldoon <pmuldoon@redhat.com>
Tom Tromey <tromey@redhat.com>
* Makefile.def: Add libcc1 to host_modules.
* configure.ac (host_tools): Add libcc1.
* Makefile.in, configure: Rebuild.
From-SVN: r216748
