Sync config files with GCC
Sync with GCC 2015-05-13 Eric Botcazou <ebotcazou@adacore.com> * sjlj.m4: New file. 2015-05-04 Trevor Saunders <tbsaunde+gcc@tbsaunde.org> * bitfields.m4: Change int to long long, and use bitfields of width 1 instead of 0. 2015-05-01 Trevor Saunders <tbsaunde+gcc@tbsaunde.org> * bitfields.m4: New file. 2015-04-14 H.J. Lu <hongjiu.lu@intel.com> * bootstrap-mpx.mk: New file. 2015-03-25 Uros Bizjak <ubizjak@gmail.com> PR bootstrap/65537 * bootstrap-lto-noplugin.mk: New build configuration. 2014-11-13 Kirill Yukhin <kirill.yukhin@intel.com> * target-posix: New file. 2014-10-27 Tom Tromey <tromey@redhat.com> * gcc-plugin.m4: New file.
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H.J. Lu
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99fe86f799
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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Sync with GCC
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2015-05-13 Eric Botcazou <ebotcazou@adacore.com>
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* sjlj.m4: New file.
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2015-05-04 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
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* bitfields.m4: Change int to long long, and use bitfields of
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width 1 instead of 0.
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2015-05-01 Trevor Saunders <tbsaunde+gcc@tbsaunde.org>
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* bitfields.m4: New file.
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2015-04-14 H.J. Lu <hongjiu.lu@intel.com>
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* bootstrap-mpx.mk: New file.
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2015-03-25 Uros Bizjak <ubizjak@gmail.com>
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PR bootstrap/65537
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* bootstrap-lto-noplugin.mk: New build configuration.
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2014-11-13 Kirill Yukhin <kirill.yukhin@intel.com>
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* target-posix: New file.
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2014-10-27 Tom Tromey <tromey@redhat.com>
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* gcc-plugin.m4: New file.
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2015-07-14 H.J. Lu <hongjiu.lu@intel.com>
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Sync with GCC
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dnl Copyright (C) 2015 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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# Define HAVE_BITFIELD_TYPE_MATTERS if the type of bitfields effects their
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# alignment.
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AC_DEFUN([gt_BITFIELD_TYPE_MATTERS],
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[
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AC_CACHE_CHECK([if the type of bitfields matters], gt_cv_bitfield_type_matters,
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[
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AC_TRY_COMPILE(
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[struct foo1 { char x; char y:1; char z; };
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struct foo2 { char x; long long int y:1; char z; };
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int foo1test[ sizeof (struct foo1) < sizeof (struct foo2) ? 1 : -1 ]; ],
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[], gt_cv_bitfield_type_matters=yes, gt_cv_bitfield_type_matters=no)
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])
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if test $gt_cv_bitfield_type_matters = yes; then
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AC_DEFINE(HAVE_BITFIELD_TYPE_MATTERS, 1,
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[Define if the type of bitfields effects alignment.])
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fi
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])
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# This option enables LTO for stage2 and stage3 on
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# hosts without linker plugin support.
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STAGE2_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
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STAGE3_CFLAGS += -flto=jobserver -frandom-seed=1 -ffat-lto-objects
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STAGEprofile_CFLAGS += -fno-lto
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# This option enables -fcheck-pointer-bounds -mmpx for stage2 and stage3.
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STAGE2_CFLAGS += -fcheck-pointer-bounds -mmpx -frandom-seed=1
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STAGE3_CFLAGS += -fcheck-pointer-bounds -mmpx -frandom-seed=1
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POSTSTAGE1_LDFLAGS += -fcheck-pointer-bounds -mmpx -frandom-seed=1 \
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-static-libmpx -static-libmpxwrappers \
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-B$$r/prev-$(TARGET_SUBDIR)/libmpx \
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-B$$r/prev-$(TARGET_SUBDIR)/libmpx/mpxrt/.libs \
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-B$$r/prev-$(TARGET_SUBDIR)/libmpx/mpxwrap/.libs
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# gcc-plugin.m4 -*- Autoconf -*-
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# Check whether GCC is able to be built with plugin support.
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dnl Copyright (C) 2014 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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# Check for plugin support.
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# Respects --enable-plugin.
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# Sets the shell variables enable_plugin and pluginlibs.
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AC_DEFUN([GCC_ENABLE_PLUGINS],
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[# Check for plugin support
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AC_ARG_ENABLE(plugin,
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[AS_HELP_STRING([--enable-plugin], [enable plugin support])],
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enable_plugin=$enableval,
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enable_plugin=yes; default_plugin=yes)
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pluginlibs=
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case "${host}" in
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*-*-darwin*)
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if test x$build = x$host; then
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export_sym_check="nm${exeext} -g"
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elif test x$host = x$target; then
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export_sym_check="$gcc_cv_nm -g"
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else
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export_sym_check=
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fi
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;;
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*)
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if test x$build = x$host; then
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export_sym_check="objdump${exeext} -T"
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elif test x$host = x$target; then
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export_sym_check="$gcc_cv_objdump -T"
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else
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export_sym_check=
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fi
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;;
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esac
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if test x"$enable_plugin" = x"yes"; then
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AC_MSG_CHECKING([for exported symbols])
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if test "x$export_sym_check" != x; then
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echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
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${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest$ac_exeext > /dev/null 2>&1
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if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then
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: # No need to use a flag
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([yes])
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AC_MSG_CHECKING([for -rdynamic])
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${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest$ac_exeext > /dev/null 2>&1
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if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then
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plugin_rdynamic=yes
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pluginlibs="-rdynamic"
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else
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plugin_rdynamic=no
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enable_plugin=no
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fi
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AC_MSG_RESULT([$plugin_rdynamic])
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fi
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else
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AC_MSG_RESULT([unable to check])
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fi
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# Check -ldl
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saved_LIBS="$LIBS"
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AC_SEARCH_LIBS([dlopen], [dl])
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if test x"$ac_cv_search_dlopen" = x"-ldl"; then
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pluginlibs="$pluginlibs -ldl"
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fi
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LIBS="$saved_LIBS"
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# Check that we can build shared objects with -fPIC -shared
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saved_LDFLAGS="$LDFLAGS"
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saved_CFLAGS="$CFLAGS"
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case "${host}" in
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*-*-darwin*)
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CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
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CFLAGS="$CFLAGS -fPIC"
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LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
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;;
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*)
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CFLAGS="$CFLAGS -fPIC"
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LDFLAGS="$LDFLAGS -fPIC -shared"
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;;
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esac
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AC_MSG_CHECKING([for -fPIC -shared])
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AC_TRY_LINK(
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[extern int X;],[return X == 0;],
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[AC_MSG_RESULT([yes]); have_pic_shared=yes],
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[AC_MSG_RESULT([no]); have_pic_shared=no])
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if test x"$have_pic_shared" != x"yes" -o x"$ac_cv_search_dlopen" = x"no"; then
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pluginlibs=
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enable_plugin=no
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fi
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LDFLAGS="$saved_LDFLAGS"
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CFLAGS="$saved_CFLAGS"
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# If plugin support had been requested but not available, fail.
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if test x"$enable_plugin" = x"no" ; then
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if test x"$default_plugin" != x"yes"; then
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AC_MSG_ERROR([
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Building GCC with plugin support requires a host that supports
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-fPIC, -shared, -ldl and -rdynamic.])
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fi
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fi
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fi
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])
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dnl Check if the compiler is configured for setjmp/longjmp exceptions.
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AC_DEFUN([GCC_CHECK_SJLJ_EXCEPTIONS],
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[AC_CACHE_CHECK([whether the compiler is configured for setjmp/longjmp exceptions],
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ac_cv_sjlj_exceptions,
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#ifdef __USING_SJLJ_EXCEPTIONS__
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this will fail
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#endif]],
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[[int i;]])],
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[ac_cv_sjlj_exceptions=no],
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[ac_cv_sjlj_exceptions=yes])])])
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@ -0,0 +1,12 @@
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case "${target}" in
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*-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
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;;
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*-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
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;;
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*-*-solaris2* | *-*-hpux11*)
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;;
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*-*-darwin* | *-*-aix*)
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;;
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*)
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UNSUPPORTED=1 ;;
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esac
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