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# This is the target specific configuration file. This is invoked by the
# autoconf generated configure script. Putting it in a separate shell file
# lets us skip running autoconf when modifying target specific information.
# This file switches on the shell variable ${target}, and sets the
# following shell variables:
# config_path An ordered list of directories to search for
# sources and headers. This is relative to the
# config subdirectory of the source tree.
# XCFLAGS Add extra compile flags to use.
# XLDFLAGS Add extra link flags to use.
# tmake_file A list of machine-description-specific
# makefile fragments.
# Optimize TLS usage by avoiding the overhead of dynamic allocation.
if test $gcc_cv_have_tls = yes ; then
case "${target}" in
*-*-k*bsd*-gnu*)
;;
*-*-musl*)
;;
*-*-linux* | *-*-gnu*)
XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS"
;;
*-*-rtems*)
XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
;;
esac
fi
tmake_file=
# Since we require POSIX threads, assume a POSIX system by default.
config_path="posix"
# Check for futex enabled all at once.
if test x$enable_linux_futex = xyes; then
case "${target}" in
aarch64*-*-linux*)
config_path="linux posix"
;;
alpha*-*-linux*)
config_path="linux/alpha linux posix"
;;
arm*-*-linux*)
config_path="linux posix"
;;
ia64*-*-linux*)
config_path="linux/ia64 linux posix"
;;
mips*-*-linux*)
config_path="linux/mips linux posix"
;;
powerpc*-*-linux*)
config_path="linux/powerpc linux posix"
;;
riscv64*-*-linux*)
config_path="linux posix"
;;
s390*-*-linux*)
config_path="linux/s390 linux posix"
;;
tile*-*-linux*)
config_path="linux/tile linux posix"
;;
# Note that bare i386 is not included here. We need cmpxchg.
i[456]86-*-linux* | x86_64-*-linux*)
config_path="linux/x86 linux posix"
cat > conftestx.c <<EOF
#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
#error need -march=i486
#endif
EOF
if ${CC} ${CFLAGS} -E conftestx.c > /dev/null 2>&1; then
:
else
if test "${target_cpu}" = x86_64; then
XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
else
XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
fi
fi
rm -f conftestx.c
;;
# Note that sparcv7 and sparcv8 is not included here. We need cas.
sparcv9-*-linux* | sparc64-*-linux*)
echo "int i;" > conftestx.c
if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
config_path="linux/sparc linux posix"
case "`/usr/bin/file conftestx.o`" in
*32-bit*)
case " ${CC} ${CFLAGS}" in
*" -mcpu=ultrasparc"*)
;;
*)
XCFLAGS="${XCFLAGS} -mcpu=v9"
;;
esac
;;
esac
fi
rm -f conftestx.c conftestx.o
;;
esac
fi
# Other system configury
case "${target}" in
*-*-hpux*)
config_path="hpux posix"
case "${target}" in
*-*-hpux11*)
# HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
XLDFLAGS="${XLDFLAGS} -lrt"
;;
esac
case "${target}" in
hppa[12]*-*-hpux*)
# PA 32 HP-UX needs -frandom-seed for bootstrap compare.
XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
;;
esac
;;
*-*-mingw32*)
config_path="mingw32 posix"
;;
*-*-darwin*)
config_path="bsd darwin posix"
;;
*-*-freebsd*)
# Need to link with -lpthread so libgomp.so is self-contained.
XLDFLAGS="${XLDFLAGS} -lpthread"
;;
*-*-aix*)
config_path="posix"
# Need to link with -lpthread so libgomp.so is self-contained.
XLDFLAGS="${XLDFLAGS} -lpthread"
# AIX needs -frandom-seed for bootstrap compare.
XCFLAGS="${XCFLAGS} -frandom-seed=\$@"
# Create AIX-style "FAT" libraries.
tmake_file="t-aix"
;;
nvptx*-*-*)
config_path="nvptx accel"
;;
*-*-rtems*)
# Use self-contained synchronization objects if provided by Newlib
if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then
config_path="rtems posix"
fi
;;
amdgcn*-*-*)
config_path="gcn accel"
;;
*)
;;
esac
|
