1459b55d24
That means, exposing to the user only the '--without-cuda-driver' behavior: including the GCC-shipped 'include/cuda/cuda.h' (not system <cuda.h>), and 'dlopen'ing the CUDA Driver library (not linking it). For development purposes, the libgomp nvptx plugin developer may still manually override that, to get the previous '--with-cuda-driver' behavior. libgomp/ * plugin/Makefrag.am: Evaluate 'if PLUGIN_NVPTX_DYNAMIC' to true. * plugin/configfrag.ac (--with-cuda-driver) (--with-cuda-driver-include, --with-cuda-driver-lib) (CUDA_DRIVER_INCLUDE, CUDA_DRIVER_LIB, PLUGIN_NVPTX_CPPFLAGS) (PLUGIN_NVPTX_LDFLAGS, PLUGIN_NVPTX_LIBS, PLUGIN_NVPTX_DYNAMIC): Remove. * testsuite/libgomp-test-support.exp.in (cuda_driver_include) (cuda_driver_lib): Remove. * testsuite/lib/libgomp.exp (libgomp_init): Don't consider these. * Makefile.in: Regenerate. * configure: Likewise. * testsuite/Makefile.in: Likewise.
133 lines
4.2 KiB
Plaintext
133 lines
4.2 KiB
Plaintext
# Plugins for offload execution, configure.ac fragment. -*- mode: autoconf -*-
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#
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# Copyright (C) 2014-2022 Free Software Foundation, Inc.
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#
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# Contributed by Mentor Embedded.
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#
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# This file is part of the GNU Offloading and Multi Processing Library
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# (libgomp).
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#
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# Libgomp is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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# more details.
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#
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# Under Section 7 of GPL version 3, you are granted additional
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# permissions described in the GCC Runtime Library Exception, version
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# 3.1, as published by the Free Software Foundation.
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#
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# You should have received a copy of the GNU General Public License and
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# a copy of the GCC Runtime Library Exception along with this program;
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# see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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# <http://www.gnu.org/licenses/>.
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plugin_support=yes
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DL_LIBS=
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AC_SUBST(DL_LIBS)
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AC_CHECK_LIB(dl, dlsym, [DL_LIBS=-ldl], [plugin_support=no])
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if test x"$plugin_support" = xyes; then
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AC_DEFINE(PLUGIN_SUPPORT, 1,
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[Define if all infrastructure, needed for plugins, is supported.])
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elif test "x${enable_offload_targets-no}" != xno; then
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AC_MSG_ERROR([Can't support offloading without support for plugins])
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fi
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AC_CHECK_HEADERS_ONCE(unistd.h)
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AC_CHECK_FUNCS_ONCE(secure_getenv __secure_getenv getuid geteuid getgid getegid)
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PLUGIN_NVPTX=0
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PLUGIN_GCN=0
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# Parse '--enable-offload-targets', figure out the corresponding libgomp
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# plugins, and configure to find the corresponding offload compilers.
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# 'offload_plugins' and 'offload_targets' will be populated in the same order.
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offload_plugins=
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offload_targets=
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AC_SUBST(offload_plugins)
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AC_SUBST(offload_targets)
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offload_additional_options=
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offload_additional_lib_paths=
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AC_SUBST(offload_additional_options)
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AC_SUBST(offload_additional_lib_paths)
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if test x"$enable_offload_targets" != x; then
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for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do
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tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'`
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tgt=`echo $tgt | sed 's/=.*//'`
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tgt_plugin=
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case $tgt in
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*-intelmic-* | *-intelmicemul-*)
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tgt_plugin=intelmic
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;;
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nvptx*)
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case "${target}" in
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aarch64*-*-* | powerpc64le-*-* | x86_64-*-*)
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case "$ac_cv_sizeof_void_p" in
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4)
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# PR libgomp/65099: Currently, we only support offloading in
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# 64-bit configurations.
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PLUGIN_NVPTX=0
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;;
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*)
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tgt_plugin=nvptx
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PLUGIN_NVPTX=1
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;;
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esac
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;;
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*-*-*)
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# Target architecture not supported.
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PLUGIN_NVPTX=0
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;;
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esac
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;;
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amdgcn*)
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case "${target}" in
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x86_64-*-*)
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case "$ac_cv_sizeof_void_p" in
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4)
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PLUGIN_GCN=0
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;;
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*)
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tgt_plugin=gcn
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PLUGIN_GCN=1
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;;
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esac
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;;
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*-*-*)
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PLUGIN_GCN=0
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;;
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esac
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;;
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*)
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AC_MSG_ERROR([unknown offload target specified])
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;;
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esac
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if test x"$tgt_plugin" = x; then
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# Not configuring libgomp for this offload target if we're not building
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# the corresponding offload plugin.
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continue
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elif test x"$offload_plugins" = x; then
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offload_plugins=$tgt_plugin
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offload_targets=$tgt
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else
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offload_plugins=$offload_plugins,$tgt_plugin
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offload_targets=$offload_targets,$tgt
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fi
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# Configure additional search paths.
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if test x"$tgt_dir" != x; then
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offload_additional_options="$offload_additional_options -B$tgt_dir/\$(libexecdir:\$(exec_prefix)/%=%)/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin"
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offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib:$tgt_dir/lib32"
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else
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offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)"
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offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir"
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fi
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done
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fi
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AC_DEFINE_UNQUOTED(OFFLOAD_PLUGINS, "$offload_plugins",
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[Define to offload plugins, separated by commas.])
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AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1])
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AM_CONDITIONAL([PLUGIN_GCN], [test $PLUGIN_GCN = 1])
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