| # Plugins for offload execution, configure.ac fragment. -*- mode: autoconf -*- |
| # |
| # Copyright (C) 2014-2022 Free Software Foundation, Inc. |
| # |
| # Contributed by Mentor Embedded. |
| # |
| # This file is part of the GNU Offloading and Multi Processing Library |
| # (libgomp). |
| # |
| # Libgomp is free software; you can redistribute it and/or modify it |
| # under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3, or (at your option) |
| # any later version. |
| # |
| # Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY |
| # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| # FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| # more details. |
| # |
| # Under Section 7 of GPL version 3, you are granted additional |
| # permissions described in the GCC Runtime Library Exception, version |
| # 3.1, as published by the Free Software Foundation. |
| # |
| # You should have received a copy of the GNU General Public License and |
| # a copy of the GCC Runtime Library Exception along with this program; |
| # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| # <http://www.gnu.org/licenses/>. |
| |
| plugin_support=yes |
| DL_LIBS= |
| AC_SUBST(DL_LIBS) |
| AC_CHECK_LIB(dl, dlsym, [DL_LIBS=-ldl], [plugin_support=no]) |
| if test x"$plugin_support" = xyes; then |
| AC_DEFINE(PLUGIN_SUPPORT, 1, |
| [Define if all infrastructure, needed for plugins, is supported.]) |
| elif test "x${enable_offload_targets-no}" != xno; then |
| AC_MSG_ERROR([Can't support offloading without support for plugins]) |
| fi |
| AC_CHECK_HEADERS_ONCE(unistd.h) |
| AC_CHECK_FUNCS_ONCE(secure_getenv __secure_getenv getuid geteuid getgid getegid) |
| |
| |
| PLUGIN_NVPTX=0 |
| PLUGIN_GCN=0 |
| # Parse '--enable-offload-targets', figure out the corresponding libgomp |
| # plugins, and configure to find the corresponding offload compilers. |
| # 'offload_plugins' and 'offload_targets' will be populated in the same order. |
| offload_plugins= |
| offload_targets= |
| AC_SUBST(offload_plugins) |
| AC_SUBST(offload_targets) |
| offload_additional_options= |
| offload_additional_lib_paths= |
| AC_SUBST(offload_additional_options) |
| AC_SUBST(offload_additional_lib_paths) |
| if test x"$enable_offload_targets" != x; then |
| for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do |
| tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'` |
| tgt=`echo $tgt | sed 's/=.*//'` |
| tgt_plugin= |
| case $tgt in |
| *-intelmic-* | *-intelmicemul-*) |
| tgt_plugin=intelmic |
| ;; |
| nvptx*) |
| case "${target}" in |
| aarch64*-*-* | powerpc64le-*-* | x86_64-*-*) |
| case "$ac_cv_sizeof_void_p" in |
| 4) |
| # PR libgomp/65099: Currently, we only support offloading in |
| # 64-bit configurations. |
| PLUGIN_NVPTX=0 |
| ;; |
| *) |
| tgt_plugin=nvptx |
| PLUGIN_NVPTX=1 |
| ;; |
| esac |
| ;; |
| *-*-*) |
| # Target architecture not supported. |
| PLUGIN_NVPTX=0 |
| ;; |
| esac |
| ;; |
| amdgcn*) |
| case "${target}" in |
| x86_64-*-*) |
| case "$ac_cv_sizeof_void_p" in |
| 4) |
| PLUGIN_GCN=0 |
| ;; |
| *) |
| tgt_plugin=gcn |
| PLUGIN_GCN=1 |
| ;; |
| esac |
| ;; |
| *-*-*) |
| PLUGIN_GCN=0 |
| ;; |
| esac |
| ;; |
| *) |
| AC_MSG_ERROR([unknown offload target specified]) |
| ;; |
| esac |
| if test x"$tgt_plugin" = x; then |
| # Not configuring libgomp for this offload target if we're not building |
| # the corresponding offload plugin. |
| continue |
| elif test x"$offload_plugins" = x; then |
| offload_plugins=$tgt_plugin |
| offload_targets=$tgt |
| else |
| offload_plugins=$offload_plugins,$tgt_plugin |
| offload_targets=$offload_targets,$tgt |
| fi |
| # Configure additional search paths. |
| if test x"$tgt_dir" != x; then |
| offload_additional_options="$offload_additional_options -B$tgt_dir/\$(libexecdir:\$(exec_prefix)/%=%)/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin" |
| offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib:$tgt_dir/lib32" |
| else |
| offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)" |
| offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir" |
| fi |
| done |
| fi |
| AC_DEFINE_UNQUOTED(OFFLOAD_PLUGINS, "$offload_plugins", |
| [Define to offload plugins, separated by commas.]) |
| AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1]) |
| AM_CONDITIONAL([PLUGIN_GCN], [test $PLUGIN_GCN = 1]) |