[thirdparty/gcc.git] / libgomp / plugin / configfrag.ac

# Plugins for offload execution, configure.ac fragment.  -*- mode: autoconf -*-
#
# Copyright (C) 2014-2022 Free Software Foundation, Inc.
#
# Contributed by Mentor Embedded.
#
# This file is part of the GNU Offloading and Multi Processing Library
# (libgomp).
#
# Libgomp is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# Under Section 7 of GPL version 3, you are granted additional
# permissions described in the GCC Runtime Library Exception, version
# 3.1, as published by the Free Software Foundation.
#
# You should have received a copy of the GNU General Public License and
# a copy of the GCC Runtime Library Exception along with this program;
# see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
# <http://www.gnu.org/licenses/>.

plugin_support=yes
DL_LIBS=
AC_SUBST(DL_LIBS)
AC_CHECK_LIB(dl, dlsym, [DL_LIBS=-ldl], [plugin_support=no])
if test x"$plugin_support" = xyes; then
  AC_DEFINE(PLUGIN_SUPPORT, 1,
    [Define if all infrastructure, needed for plugins, is supported.])
elif test "x${enable_offload_targets-no}" != xno; then
  AC_MSG_ERROR([Can't support offloading without support for plugins])
fi
AC_CHECK_HEADERS_ONCE(unistd.h)
AC_CHECK_FUNCS_ONCE(secure_getenv __secure_getenv getuid geteuid getgid getegid)


PLUGIN_NVPTX=0
PLUGIN_GCN=0
# Parse '--enable-offload-targets', figure out the corresponding libgomp
# plugins, and configure to find the corresponding offload compilers.
# 'offload_plugins' and 'offload_targets' will be populated in the same order.
offload_plugins=
offload_targets=
AC_SUBST(offload_plugins)
AC_SUBST(offload_targets)
offload_additional_options=
offload_additional_lib_paths=
AC_SUBST(offload_additional_options)
AC_SUBST(offload_additional_lib_paths)
if test x"$enable_offload_targets" != x; then
  for tgt in `echo $enable_offload_targets | sed -e 's#,# #g'`; do
    tgt_dir=`echo $tgt | grep '=' | sed 's/.*=//'`
    tgt=`echo $tgt | sed 's/=.*//'`
    tgt_plugin=
    case $tgt in
      nvptx*)
	case "${target}" in
	  aarch64*-*-* | powerpc64le-*-* | x86_64-*-*)
	    case "$ac_cv_sizeof_void_p" in
	      4)
		# PR libgomp/65099: Currently, we only support offloading in
		# 64-bit configurations.
		PLUGIN_NVPTX=0
		;;
	      *)
		tgt_plugin=nvptx
		PLUGIN_NVPTX=1
		;;
	    esac
	    ;;
	  *-*-*)
	    # Target architecture not supported.
	    PLUGIN_NVPTX=0
	    ;;
	esac
	;;
      amdgcn*)
	case "${target}" in
	  x86_64-*-*)
	    case "$ac_cv_sizeof_void_p" in
	      4)
		PLUGIN_GCN=0
		;;
	      *)
		tgt_plugin=gcn
		PLUGIN_GCN=1
		;;
	      esac
	    ;;
	  *-*-*)
	    PLUGIN_GCN=0
	     ;;
	esac
	;;
      *)
	AC_MSG_ERROR([unknown offload target specified])
	;;
    esac
    if test x"$tgt_plugin" = x; then
      # Not configuring libgomp for this offload target if we're not building
      # the corresponding offload plugin.
      continue
    elif test x"$offload_plugins" = x; then
      offload_plugins=$tgt_plugin
      offload_targets=$tgt
    else
      offload_plugins=$offload_plugins,$tgt_plugin
      offload_targets=$offload_targets,$tgt
    fi
    # Configure additional search paths.
    if test x"$tgt_dir" != x; then
      offload_additional_options="$offload_additional_options -B$tgt_dir/\$(libexecdir:\$(exec_prefix)/%=%)/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin"
      offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib:$tgt_dir/lib32"
    else
      offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)"
      offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir"
    fi
  done
fi
AC_DEFINE_UNQUOTED(OFFLOAD_PLUGINS, "$offload_plugins",
  [Define to offload plugins, separated by commas.])
AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1])
AM_CONDITIONAL([PLUGIN_GCN], [test $PLUGIN_GCN = 1])
Commit	Line	Data
41dbbb37 TS	1	# Plugins for offload execution, configure.ac fragment. -- mode: autoconf --
41dbbb37 TS	2	#
7adcbafe	3	# Copyright (C) 2014-2022 Free Software Foundation, Inc.
41dbbb37 TS	4	#
	5	# Contributed by Mentor Embedded.
	6	#
	7	# This file is part of the GNU Offloading and Multi Processing Library
	8	# (libgomp).
	9	#
	10	# Libgomp is free software; you can redistribute it and/or modify it
	11	# under the terms of the GNU General Public License as published by
	12	# the Free Software Foundation; either version 3, or (at your option)
	13	# any later version.
	14	#
	15	# Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
	16	# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
	17	# FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	18	# more details.
	19	#
	20	# Under Section 7 of GPL version 3, you are granted additional
	21	# permissions described in the GCC Runtime Library Exception, version
	22	# 3.1, as published by the Free Software Foundation.
	23	#
	24	# You should have received a copy of the GNU General Public License and
	25	# a copy of the GCC Runtime Library Exception along with this program;
	26	# see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	27	# <http://www.gnu.org/licenses/>.
	28
41dbbb37	29	plugin_support=yes
dcc26679 TS	30	DL_LIBS=
	31	AC_SUBST(DL_LIBS)
	32	AC_CHECK_LIB(dl, dlsym, [DL_LIBS=-ldl], [plugin_support=no])
41dbbb37 TS	33	if test x"$plugin_support" = xyes; then
	34	AC_DEFINE(PLUGIN_SUPPORT, 1,
	35	[Define if all infrastructure, needed for plugins, is supported.])
41dbbb37 TS	36	elif test "x${enable_offload_targets-no}" != xno; then
	37	AC_MSG_ERROR([Can't support offloading without support for plugins])
	38	fi
b8d89b03 ML	39	AC_CHECK_HEADERS_ONCE(unistd.h)
	40	AC_CHECK_FUNCS_ONCE(secure_getenv __secure_getenv getuid geteuid getgid getegid)
	41
41dbbb37	42
41dbbb37	43	PLUGIN_NVPTX=0
237957cc	44	PLUGIN_GCN=0
ee332b4a TS	45	# Parse '--enable-offload-targets', figure out the corresponding libgomp
ee332b4a TS	46	# plugins, and configure to find the corresponding offload compilers.
0a0384b4	47	# 'offload_plugins' and 'offload_targets' will be populated in the same order.
ee332b4a	48	offload_plugins=
0a0384b4	49	offload_targets=
ee332b4a	50	AC_SUBST(offload_plugins)
0a0384b4	51	AC_SUBST(offload_targets)
41dbbb37 TS	52	offload_additional_options=
	53	offload_additional_lib_paths=
	54	AC_SUBST(offload_additional_options)
	55	AC_SUBST(offload_additional_lib_paths)
	56	if test x"$enable_offload_targets" != x; then
	57	for tgt in `echo $enable_offload_targets \| sed -e 's#,# #g'`; do
	58	tgt_dir=`echo $tgt \| grep '=' \| sed 's/.*=//'`
	59	tgt=`echo $tgt \| sed 's/=.*//'`
ee332b4a	60	tgt_plugin=
41dbbb37	61	case $tgt in
41dbbb37	62	nvptx*)
6106dfb9 TS	63	case "${target}" in
6106dfb9 TS	64	aarch64--* \| powerpc64le-- \| x86_64--)
f65e551f JJ	65	case "$ac_cv_sizeof_void_p" in
f65e551f JJ	66	4)
6106dfb9 TS	67	# PR libgomp/65099: Currently, we only support offloading in
	68	# 64-bit configurations.
	69	PLUGIN_NVPTX=0
	70	;;
	71	*)
	72	tgt_plugin=nvptx
1459b55d	73	PLUGIN_NVPTX=1
6106dfb9 TS	74	;;
	75	esac
	76	;;
	77	--*)
	78	# Target architecture not supported.
	79	PLUGIN_NVPTX=0
	80	;;
41dbbb37 TS	81	esac
41dbbb37 TS	82	;;
237957cc AS	83	amdgcn*)
	84	case "${target}" in
	85	x86_64--)
f65e551f JJ	86	case "$ac_cv_sizeof_void_p" in
f65e551f JJ	87	4)
237957cc AS	88	PLUGIN_GCN=0
	89	;;
	90	*)
	91	tgt_plugin=gcn
237957cc AS	92	PLUGIN_GCN=1
	93	;;
	94	esac
	95	;;
	96	--*)
	97	PLUGIN_GCN=0
	98	;;
	99	esac
	100	;;
41dbbb37 TS	101	*)
	102	AC_MSG_ERROR([unknown offload target specified])
	103	;;
	104	esac
ee332b4a TS	105	if test x"$tgt_plugin" = x; then
	106	# Not configuring libgomp for this offload target if we're not building
	107	# the corresponding offload plugin.
41d809d3	108	continue
ee332b4a TS	109	elif test x"$offload_plugins" = x; then
ee332b4a TS	110	offload_plugins=$tgt_plugin
0a0384b4	111	offload_targets=$tgt
41dbbb37	112	else
ee332b4a	113	offload_plugins=$offload_plugins,$tgt_plugin
0a0384b4	114	offload_targets=$offload_targets,$tgt
41dbbb37	115	fi
ee332b4a	116	# Configure additional search paths.
c56684fd	117	if test x"$tgt_dir" != x; then
52f42dce	118	offload_additional_options="$offload_additional_options -B$tgt_dir/\$(libexecdir:\$(exec_prefix)/%=%)/gcc/\$(target_alias)/\$(gcc_version) -B$tgt_dir/bin"
41dbbb37 TS	119	offload_additional_lib_paths="$offload_additional_lib_paths:$tgt_dir/lib64:$tgt_dir/lib:$tgt_dir/lib32"
	120	else
	121	offload_additional_options="$offload_additional_options -B\$(libexecdir)/gcc/\$(target_alias)/\$(gcc_version) -B\$(bindir)"
	122	offload_additional_lib_paths="$offload_additional_lib_paths:$toolexeclibdir"
	123	fi
	124	done
	125	fi
ee332b4a TS	126	AC_DEFINE_UNQUOTED(OFFLOAD_PLUGINS, "$offload_plugins",
ee332b4a TS	127	[Define to offload plugins, separated by commas.])
41dbbb37	128	AM_CONDITIONAL([PLUGIN_NVPTX], [test $PLUGIN_NVPTX = 1])
237957cc	129	AM_CONDITIONAL([PLUGIN_GCN], [test $PLUGIN_GCN = 1])