1 # This is the target specific configuration file. This is invoked by the
2 # autoconf generated configure script. Putting it in a separate shell file
3 # lets us skip running autoconf when modifying target specific information.
5 # This file switches on the shell variable ${target}, and sets the
6 # following shell variables:
7 # config_path An ordered list of directories to search for
8 # sources and headers. This is relative to the
9 # config subdirectory of the source tree.
10 # XCFLAGS Add extra compile flags to use.
11 # XLDFLAGS Add extra link flags to use.
12 # tmake_file A list of machine-description-specific
15 # Optimize TLS usage by avoiding the overhead of dynamic allocation.
16 if test $gcc_cv_have_tls = yes ; then
25 *-*-linux* | *-*-gnu*)
26 XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS"
30 XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
36 # Since we require POSIX threads, assume a POSIX system by default.
39 # Check for futex enabled all at once.
40 if test x$enable_linux_futex = xyes; then
44 config_path="linux posix"
48 config_path="linux/alpha linux posix"
52 config_path="linux posix"
56 config_path="linux/ia64 linux posix"
60 config_path="linux posix"
64 config_path="linux/mips linux posix"
68 config_path="linux/powerpc linux posix"
72 config_path="linux posix"
76 config_path="linux/s390 linux posix"
80 config_path="linux/tile linux posix"
83 # Note that bare i386 is not included here. We need cmpxchg.
84 i[456]86-*-linux* | x86_64-*-linux*)
85 config_path="linux/x86 linux posix"
86 cat > conftestx.c <<EOF
87 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
88 #error need -march=i486
91 if ${CC} ${CFLAGS} -E conftestx.c > /dev/null 2>&1; then
94 if test "${target_cpu}" = x86_64; then
95 XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
97 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
103 # Note that sparcv7 and sparcv8 is not included here. We need cas.
104 sparcv9-*-linux* | sparc64-*-linux*)
105 echo "int i;" > conftestx.c
106 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
107 config_path="linux/sparc linux posix"
108 case "`/usr/bin/file conftestx.o`" in
110 case " ${CC} ${CFLAGS}" in
111 *" -mcpu=ultrasparc"*)
114 XCFLAGS="${XCFLAGS} -mcpu=v9"
120 rm -f conftestx.c conftestx.o
125 # Other system configury
129 config_path="hpux posix"
132 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
133 XLDFLAGS="${XLDFLAGS} -lrt"
138 # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
139 XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
145 config_path="mingw32 posix"
149 config_path="bsd darwin posix"
153 # Need to link with -lpthread so libgomp.so is self-contained.
154 XLDFLAGS="${XLDFLAGS} -lpthread"
159 # Need to link with -lpthread so libgomp.so is self-contained.
160 XLDFLAGS="${XLDFLAGS} -lpthread"
161 # AIX needs -frandom-seed for bootstrap compare.
162 XCFLAGS="${XCFLAGS} -frandom-seed=\$@"
163 # Create AIX-style "FAT" libraries.
168 config_path="nvptx accel"
172 # Use self-contained synchronization objects if provided by Newlib
173 if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then
174 config_path="rtems posix"
179 config_path="gcn accel"
182 XCFLAGS="$XCFLAGS -Wno-error=array-bounds"