libgomp/plugin/configfrag.ac

   1 # Plugins for offload execution, configure.ac fragment.  -*- mode: autoconf -*-
   2 #
   3 # Copyright (C) 2014-2015 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 offload_targets=
  30 AC_SUBST(offload_targets)
  31 plugin_support=yes
  32 AC_CHECK_LIB(dl, dlsym, , [plugin_support=no])
  33 if test x"$plugin_support" = xyes; then
  34   AC_DEFINE(PLUGIN_SUPPORT, 1,
  35     [Define if all infrastructure, needed for plugins, is supported.])
  36   offload_targets=host_nonshm
  37 elif test "x${enable_offload_targets-no}" != xno; then
  38   AC_MSG_ERROR([Can't support offloading without support for plugins])
  39 fi
  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 if test "x$with_cuda_driver" != x; then
  60   CUDA_DRIVER_INCLUDE=$with_cuda_driver/include
  61   CUDA_DRIVER_LIB=$with_cuda_driver/lib
  62 fi
  63 if test "x$with_cuda_driver_include" != x; then
  64   CUDA_DRIVER_INCLUDE=$with_cuda_driver_include
  65 fi
  66 if test "x$with_cuda_driver_lib" != x; then
  67   CUDA_DRIVER_LIB=$with_cuda_driver_lib
  68 fi
  69 if test "x$CUDA_DRIVER_INCLUDE" != x; then
  70   CUDA_DRIVER_CPPFLAGS=-I$CUDA_DRIVER_INCLUDE
  71 fi
  72 if test "x$CUDA_DRIVER_LIB" != x; then
  73   CUDA_DRIVER_LDFLAGS=-L$CUDA_DRIVER_LIB
  74 fi
  75
  76 PLUGIN_NVPTX=0
  77 PLUGIN_NVPTX_CPPFLAGS=
  78 PLUGIN_NVPTX_LDFLAGS=
  79 PLUGIN_NVPTX_LIBS=
  80 AC_SUBST(PLUGIN_NVPTX)
  81 AC_SUBST(PLUGIN_NVPTX_CPPFLAGS)
  82 AC_SUBST(PLUGIN_NVPTX_LDFLAGS)
  83 AC_SUBST(PLUGIN_NVPTX_LIBS)
  84
  85 # Get offload targets and path to install tree of offloading compiler.
  86 offload_additional_options=
  87 offload_additional_lib_paths=
  88 AC_SUBST(offload_additional_options)
  89 AC_SUBST(offload_additional_lib_paths)
  90 if test x"$enable_offload_targets" != x; then
  91   for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do
  92     tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'`
  93     tgt=`echo $tgt | sed 's/=.*//'`
  94     case $tgt in
  95       *-intelmic-* | *-intelmicemul-*)
  96         tgt_name=intelmic
  97         ;;
  98       nvptx*)
  99         tgt_name=nvptx
 100         PLUGIN_NVPTX=$tgt
 101         PLUGIN_NVPTX_CPPFLAGS=$CUDA_DRIVER_CPPFLAGS
 102         PLUGIN_NVPTX_LDFLAGS=$CUDA_DRIVER_LDFLAGS
 103         PLUGIN_NVPTX_LIBS='-lcuda'
 104
 105         PLUGIN_NVPTX_save_CPPFLAGS=$CPPFLAGS
 106         CPPFLAGS="$PLUGIN_NVPTX_CPPFLAGS $CPPFLAGS"
 107         PLUGIN_NVPTX_save_LDFLAGS=$LDFLAGS
 108         LDFLAGS="$PLUGIN_NVPTX_LDFLAGS $LDFLAGS"
 109         PLUGIN_NVPTX_save_LIBS=$LIBS
 110         LIBS="$PLUGIN_NVPTX_LIBS $LIBS"
 111         AC_LINK_IFELSE(
 112           [AC_LANG_PROGRAM(
 113             [#include "cuda.h"],
 114               [CUresult r = cuCtxPushCurrent (NULL);])],
 115           [PLUGIN_NVPTX=1])
 116         CPPFLAGS=$PLUGIN_NVPTX_save_CPPFLAGS
 117         LDFLAGS=$PLUGIN_NVPTX_save_LDFLAGS
 118         LIBS=$PLUGIN_NVPTX_save_LIBS
 119         case $PLUGIN_NVPTX in
 120           nvptx*)
 121             PLUGIN_NVPTX=0
 122             AC_MSG_ERROR([CUDA driver package required for nvptx support])
 123             ;;
 124         esac
 125         ;;
 126       *)
 127         AC_MSG_ERROR([unknown offload target specified])
 128         ;;
 129     esac
 130     if test x"$offload_targets" = x; then
 131       offload_targets=$tgt_name
 132     else
 133       offload_targets=$offload_targets,$tgt_name
 134     fi
 135     if test x"$tgt_dir" != x; then
 136       offload_additional_options="$offload_additional_options -B$tgt_dir/libexec/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin"
 137       offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib:$tgt_dir/lib32"
 138     else
 139       offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)"
 140       offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir"
 141     fi
 142   done
 143 fi
 144 AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
 145   [Define to hold the list of target names suitable for offloading.])
 146 AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1])
 147 AC_DEFINE_UNQUOTED([PLUGIN_NVPTX], [$PLUGIN_NVPTX],
 148   [Define to 1 if the NVIDIA plugin is built, 0 if not.])