2 # Copyright (C) 2011 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 # This is the target specific configuration file. This is invoked by the
19 # autoconf generated configure script. Putting it in a separate shell file
20 # lets us skip running autoconf when modifying target specific information.
22 # This file switches on the shell variable ${target}, and sets the
23 # following shell variables:
24 # config_path An ordered list of directories to search for
25 # sources and headers. This is relative to the
26 # config subdirectory of the source tree.
27 # XCFLAGS Add extra compile flags to use.
28 # XLDFLAGS Add extra link flags to use.
30 # Optimize TLS usage by avoiding the overhead of dynamic allocation.
31 if test $gcc_cv_have_tls = yes ; then
34 # For x86, we use slots in the TCB head for most of our TLS.
35 # The setup of those slots in beginTransaction can afford to
36 # use the global-dynamic model.
37 i[456]86-*-linux* | x86_64-*-linux*)
41 XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
46 # Map the target cpu to an ARCH sub-directory. At the same time,
47 # work out any special compilation flags as necessary.
48 case "${target_cpu}" in
52 powerpc*) ARCH=powerpc ;;
56 case " ${CC} ${CFLAGS} " in
60 if test -z "$with_arch"; then
61 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
62 XCFLAGS="${XCFLAGS} -fomit-frame-pointer"
69 case " ${CC} ${CFLAGS} " in
71 XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
72 XCFLAGS="${XCFLAGS} -fomit-frame-pointer"
79 # Note that sparcv7 and sparcv8 is not included here. We need cas.
80 echo "int i;" > conftestx.c
81 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
82 case "`/usr/bin/file conftestx.o`" in
84 case " ${CC} ${CFLAGS}" in
85 *" -mcpu=ultrasparc"*)
88 XCFLAGS="${XCFLAGS} -mcpu=v9"
94 rm -f conftestx.c conftestx.o
103 # Since we require POSIX threads, assume a POSIX system by default.
104 config_path="$ARCH posix generic"
106 # Other system configury
109 if test $enable_linux_futex = yes; then
110 config_path="linux/$ARCH linux $config_path"
115 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
116 XLDFLAGS="${XLDFLAGS} -lrt"
120 config_path="$ARCH mingw32 posix generic"
124 config_path="$ARCH posix95 posix generic"
125 XLDFLAGS="${XLDFLAGS} -lposix4"
129 config_path="$ARCH bsd posix generic"