1 # Plugins for offload execution, configure.ac fragment. -*- mode: autoconf -*- 2 # 3 # Copyright (C) 2014-2022 Free Software Foundation, Inc. 4 # 5 # Contributed by Mentor Embedded. 6 # 7 # This file is part of the GNU Offloading and Multi Processing Library 8 # (libgomp). 9 # 10 # Libgomp is free software; you can redistribute it and/or modify it 11 # under the terms of the GNU General Public License as published by 12 # the Free Software Foundation; either version 3, or (at your option) 13 # any later version. 14 # 15 # Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY 16 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 17 # FOR A PARTICULAR PURPOSE. See the GNU General Public License for 18 # more details. 19 # 20 # Under Section 7 of GPL version 3, you are granted additional 21 # permissions described in the GCC Runtime Library Exception, version 22 # 3.1, as published by the Free Software Foundation. 23 # 24 # You should have received a copy of the GNU General Public License and 25 # a copy of the GCC Runtime Library Exception along with this program; 26 # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 27 # <http://www.gnu.org/licenses/>. 28 29 plugin_support=yes 30 AC_CHECK_LIB(dl, dlsym, , [plugin_support=no]) 31 if test x"$plugin_support" = xyes; then 32 AC_DEFINE(PLUGIN_SUPPORT, 1, 33 [Define if all infrastructure, needed for plugins, is supported.]) 34 elif test "x${enable_offload_targets-no}" != xno; then 35 AC_MSG_ERROR([Can't support offloading without support for plugins]) 36 fi 37 AC_CHECK_HEADERS_ONCE(unistd.h) 38 AC_CHECK_FUNCS_ONCE(secure_getenv __secure_getenv getuid geteuid getgid getegid) 39 40 41 # Look for the CUDA driver package. 42 CUDA_DRIVER_INCLUDE= 43 CUDA_DRIVER_LIB= 44 AC_SUBST(CUDA_DRIVER_INCLUDE) 45 AC_SUBST(CUDA_DRIVER_LIB) 46 CUDA_DRIVER_CPPFLAGS= 47 CUDA_DRIVER_LDFLAGS= 48 AC_ARG_WITH(cuda-driver, 49 [AS_HELP_STRING([--with-cuda-driver=PATH], 50 [specify prefix directory for installed CUDA driver package. 51 Equivalent to --with-cuda-driver-include=PATH/include 52 plus --with-cuda-driver-lib=PATH/lib])]) 53 AC_ARG_WITH(cuda-driver-include, 54 [AS_HELP_STRING([--with-cuda-driver-include=PATH], 55 [specify directory for installed CUDA driver include files])]) 56 AC_ARG_WITH(cuda-driver-lib, 57 [AS_HELP_STRING([--with-cuda-driver-lib=PATH], 58 [specify directory for the installed CUDA driver library])]) 59 case "x$with_cuda_driver" in 60 x) ;; 61 xno) 62 CUDA_DRIVER_INCLUDE=no 63 CUDA_DRIVER_LIB=no 64 ;; 65 *) CUDA_DRIVER_INCLUDE=$with_cuda_driver/include 66 CUDA_DRIVER_LIB=$with_cuda_driver/lib 67 ;; 68 esac 69 if test "x$with_cuda_driver_include" != x; then 70 CUDA_DRIVER_INCLUDE=$with_cuda_driver_include 71 fi 72 if test "x$with_cuda_driver_lib" != x; then 73 CUDA_DRIVER_LIB=$with_cuda_driver_lib 74 fi 75 if test "x$CUDA_DRIVER_INCLUDE" != x \ 76 && test "x$CUDA_DRIVER_INCLUDE" != xno; then 77 CUDA_DRIVER_CPPFLAGS=-I$CUDA_DRIVER_INCLUDE 78 fi 79 if test "x$CUDA_DRIVER_LIB" != x \ 80 && test "x$CUDA_DRIVER_LIB" != xno; then 81 CUDA_DRIVER_LDFLAGS=-L$CUDA_DRIVER_LIB 82 fi 83 84 PLUGIN_NVPTX=0 85 PLUGIN_NVPTX_CPPFLAGS= 86 PLUGIN_NVPTX_LDFLAGS= 87 PLUGIN_NVPTX_LIBS= 88 PLUGIN_NVPTX_DYNAMIC=0 89 AC_SUBST(PLUGIN_NVPTX) 90 AC_SUBST(PLUGIN_NVPTX_CPPFLAGS) 91 AC_SUBST(PLUGIN_NVPTX_LDFLAGS) 92 AC_SUBST(PLUGIN_NVPTX_LIBS) 93 94 # Look for HSA run-time, its includes and libraries 95 96 HSA_RUNTIME_INCLUDE= 97 HSA_RUNTIME_LIB= 98 AC_SUBST(HSA_RUNTIME_INCLUDE) 99 AC_SUBST(HSA_RUNTIME_LIB) 100 HSA_RUNTIME_CPPFLAGS= 101 HSA_RUNTIME_LDFLAGS= 102 103 AC_ARG_WITH(hsa-runtime, 104 [AS_HELP_STRING([--with-hsa-runtime=PATH], 105 [specify prefix directory for installed HSA run-time package. 106 Equivalent to --with-hsa-runtime-include=PATH/include 107 plus --with-hsa-runtime-lib=PATH/lib])]) 108 AC_ARG_WITH(hsa-runtime-include, 109 [AS_HELP_STRING([--with-hsa-runtime-include=PATH], 110 [specify directory for installed HSA run-time include files])]) 111 AC_ARG_WITH(hsa-runtime-lib, 112 [AS_HELP_STRING([--with-hsa-runtime-lib=PATH], 113 [specify directory for the installed HSA run-time library])]) 114 if test "x$with_hsa_runtime" != x; then 115 HSA_RUNTIME_INCLUDE=$with_hsa_runtime/include 116 HSA_RUNTIME_LIB=$with_hsa_runtime/lib 117 fi 118 if test "x$with_hsa_runtime_include" != x; then 119 HSA_RUNTIME_INCLUDE=$with_hsa_runtime_include 120 fi 121 if test "x$with_hsa_runtime_lib" != x; then 122 HSA_RUNTIME_LIB=$with_hsa_runtime_lib 123 fi 124 if test "x$HSA_RUNTIME_INCLUDE" != x; then 125 HSA_RUNTIME_CPPFLAGS=-I$HSA_RUNTIME_INCLUDE 126 fi 127 if test "x$HSA_RUNTIME_LIB" != x; then 128 HSA_RUNTIME_LDFLAGS=-L$HSA_RUNTIME_LIB 129 fi 130 131 PLUGIN_GCN=0 132 PLUGIN_GCN_CPPFLAGS= 133 PLUGIN_GCN_LDFLAGS= 134 PLUGIN_GCN_LIBS= 135 AC_SUBST(PLUGIN_GCN) 136 AC_SUBST(PLUGIN_GCN_CPPFLAGS) 137 AC_SUBST(PLUGIN_GCN_LDFLAGS) 138 AC_SUBST(PLUGIN_GCN_LIBS) 139 140 # Parse '--enable-offload-targets', figure out the corresponding libgomp 141 # plugins, and configure to find the corresponding offload compilers. 142 # 'offload_plugins' and 'offload_targets' will be populated in the same order. 143 offload_plugins= 144 offload_targets= 145 AC_SUBST(offload_plugins) 146 AC_SUBST(offload_targets) 147 offload_additional_options= 148 offload_additional_lib_paths= 149 AC_SUBST(offload_additional_options) 150 AC_SUBST(offload_additional_lib_paths) 151 if test x"$enable_offload_targets" != x; then 152 for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do 153 tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'` 154 tgt=`echo $tgt | sed 's/=.*//'` 155 tgt_plugin= 156 case $tgt in 157 *-intelmic-* | *-intelmicemul-*) 158 tgt_plugin=intelmic 159 ;; 160 nvptx*) 161 case "${target}" in 162 aarch64*-*-* | powerpc64le-*-* | x86_64-*-*) 163 case "$ac_cv_sizeof_void_p" in 164 4) 165 # PR libgomp/65099: Currently, we only support offloading in 166 # 64-bit configurations. 167 PLUGIN_NVPTX=0 168 ;; 169 *) 170 tgt_plugin=nvptx 171 PLUGIN_NVPTX=$tgt 172 if test "x$CUDA_DRIVER_LIB" != xno \ 173 && test "x$CUDA_DRIVER_LIB" != xno; then 174 PLUGIN_NVPTX_CPPFLAGS=$CUDA_DRIVER_CPPFLAGS 175 PLUGIN_NVPTX_LDFLAGS=$CUDA_DRIVER_LDFLAGS 176 PLUGIN_NVPTX_LIBS='-lcuda' 177 178 PLUGIN_NVPTX_save_CPPFLAGS=$CPPFLAGS 179 CPPFLAGS="$PLUGIN_NVPTX_CPPFLAGS $CPPFLAGS" 180 PLUGIN_NVPTX_save_LDFLAGS=$LDFLAGS 181 LDFLAGS="$PLUGIN_NVPTX_LDFLAGS $LDFLAGS" 182 PLUGIN_NVPTX_save_LIBS=$LIBS 183 LIBS="$PLUGIN_NVPTX_LIBS $LIBS" 184 AC_LINK_IFELSE( 185 [AC_LANG_PROGRAM( 186 [#include "cuda.h"], 187 [CUresult r = cuCtxPushCurrent (NULL);])], 188 [PLUGIN_NVPTX=1]) 189 CPPFLAGS=$PLUGIN_NVPTX_save_CPPFLAGS 190 LDFLAGS=$PLUGIN_NVPTX_save_LDFLAGS 191 LIBS=$PLUGIN_NVPTX_save_LIBS 192 fi 193 case $PLUGIN_NVPTX in 194 nvptx*) 195 if (test "x$CUDA_DRIVER_INCLUDE" = x \ 196 || test "x$CUDA_DRIVER_INCLUDE" = xno) \ 197 && (test "x$CUDA_DRIVER_LIB" = x \ 198 || test "x$CUDA_DRIVER_LIB" = xno); then 199 PLUGIN_NVPTX=1 200 PLUGIN_NVPTX_LIBS='-ldl' 201 PLUGIN_NVPTX_DYNAMIC=1 202 else 203 PLUGIN_NVPTX=0 204 AC_MSG_ERROR([CUDA driver package required for nvptx support]) 205 fi 206 ;; 207 esac 208 ;; 209 esac 210 ;; 211 *-*-*) 212 # Target architecture not supported. 213 PLUGIN_NVPTX=0 214 ;; 215 esac 216 ;; 217 amdgcn*) 218 case "${target}" in 219 x86_64-*-*) 220 case "$ac_cv_sizeof_void_p" in 221 4) 222 PLUGIN_GCN=0 223 ;; 224 *) 225 tgt_plugin=gcn 226 PLUGIN_GCN=$tgt 227 PLUGIN_GCN_CPPFLAGS=$HSA_RUNTIME_CPPFLAGS 228 PLUGIN_GCN_LDFLAGS="$HSA_RUNTIME_LDFLAGS" 229 PLUGIN_GCN_LIBS="-ldl" 230 PLUGIN_GCN=1 231 ;; 232 esac 233 ;; 234 *-*-*) 235 PLUGIN_GCN=0 236 ;; 237 esac 238 ;; 239 *) 240 AC_MSG_ERROR([unknown offload target specified]) 241 ;; 242 esac 243 if test x"$tgt_plugin" = x; then 244 # Not configuring libgomp for this offload target if we're not building 245 # the corresponding offload plugin. 246 continue 247 elif test x"$offload_plugins" = x; then 248 offload_plugins=$tgt_plugin 249 offload_targets=$tgt 250 else 251 offload_plugins=$offload_plugins,$tgt_plugin 252 offload_targets=$offload_targets,$tgt 253 fi 254 # Configure additional search paths. 255 if test x"$tgt_dir" != x; then 256 offload_additional_options="$offload_additional_options -B$tgt_dir/\$(libexecdir:\$(exec_prefix)/%=%)/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin" 257 offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib:$tgt_dir/lib32" 258 else 259 offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)" 260 offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir" 261 fi 262 done 263 fi 264 AC_DEFINE_UNQUOTED(OFFLOAD_PLUGINS, "$offload_plugins", 265 [Define to offload plugins, separated by commas.]) 266 AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1]) 267 AC_DEFINE_UNQUOTED([PLUGIN_NVPTX], [$PLUGIN_NVPTX], 268 [Define to 1 if the NVIDIA plugin is built, 0 if not.]) 269 AC_DEFINE_UNQUOTED([PLUGIN_NVPTX_DYNAMIC], [$PLUGIN_NVPTX_DYNAMIC], 270 [Define to 1 if the NVIDIA plugin should dlopen libcuda.so.1, 0 if it should be linked against it.]) 271 AM_CONDITIONAL([PLUGIN_GCN], [test $PLUGIN_GCN = 1]) 272 AC_DEFINE_UNQUOTED([PLUGIN_GCN], [$PLUGIN_GCN], 273 [Define to 1 if the GCN plugin is built, 0 if not.]) 274
Indexes created Sat Apr 18 00:22:28 UTC 2026