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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.]) |