configfrag.ac revision 1.1.1.1 
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
29offload_targets=
30AC_SUBST(offload_targets)
31plugin_support=yes
32AC_CHECK_LIB(dl, dlsym, , [plugin_support=no])
33if test x"$plugin_support" = xyes; then
34  AC_DEFINE(PLUGIN_SUPPORT, 1,
35    [Define if all infrastructure, needed for plugins, is supported.])
36  offload_targets=host_nonshm
37elif test "x${enable_offload_targets-no}" != xno; then
38  AC_MSG_ERROR([Can't support offloading without support for plugins])
39fi
40
41# Look for the CUDA driver package.
42CUDA_DRIVER_INCLUDE=
43CUDA_DRIVER_LIB=
44AC_SUBST(CUDA_DRIVER_INCLUDE)
45AC_SUBST(CUDA_DRIVER_LIB)
46CUDA_DRIVER_CPPFLAGS=
47CUDA_DRIVER_LDFLAGS=
48AC_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])])
53AC_ARG_WITH(cuda-driver-include,
54	[AS_HELP_STRING([--with-cuda-driver-include=PATH],
55		[specify directory for installed CUDA driver include files])])
56AC_ARG_WITH(cuda-driver-lib,
57	[AS_HELP_STRING([--with-cuda-driver-lib=PATH],
58		[specify directory for the installed CUDA driver library])])
59if test "x$with_cuda_driver" != x; then
60  CUDA_DRIVER_INCLUDE=$with_cuda_driver/include
61  CUDA_DRIVER_LIB=$with_cuda_driver/lib
62fi
63if test "x$with_cuda_driver_include" != x; then
64  CUDA_DRIVER_INCLUDE=$with_cuda_driver_include
65fi
66if test "x$with_cuda_driver_lib" != x; then
67  CUDA_DRIVER_LIB=$with_cuda_driver_lib
68fi
69if test "x$CUDA_DRIVER_INCLUDE" != x; then
70  CUDA_DRIVER_CPPFLAGS=-I$CUDA_DRIVER_INCLUDE
71fi
72if test "x$CUDA_DRIVER_LIB" != x; then
73  CUDA_DRIVER_LDFLAGS=-L$CUDA_DRIVER_LIB
74fi
75
76PLUGIN_NVPTX=0
77PLUGIN_NVPTX_CPPFLAGS=
78PLUGIN_NVPTX_LDFLAGS=
79PLUGIN_NVPTX_LIBS=
80AC_SUBST(PLUGIN_NVPTX)
81AC_SUBST(PLUGIN_NVPTX_CPPFLAGS)
82AC_SUBST(PLUGIN_NVPTX_LDFLAGS)
83AC_SUBST(PLUGIN_NVPTX_LIBS)
84
85# Get offload targets and path to install tree of offloading compiler.
86offload_additional_options=
87offload_additional_lib_paths=
88AC_SUBST(offload_additional_options)
89AC_SUBST(offload_additional_lib_paths)
90if test x"$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
143fi
144AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
145  [Define to hold the list of target names suitable for offloading.])
146AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1])
147AC_DEFINE_UNQUOTED([PLUGIN_NVPTX], [$PLUGIN_NVPTX],
148  [Define to 1 if the NVIDIA plugin is built, 0 if not.])
149