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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.
# Optimize TLS usage by avoiding the overhead of dynamic allocation.
if test $gcc_cv_have_tls = yes ; then
case "${target}" in
*-*-linux*)
XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
;;
esac
fi
# Since we require POSIX threads, assume a POSIX system by default.
config_path="posix"
# Check for futex enabled all at once.
if test $enable_linux_futex = yes; then
case "${target}" in
alpha*-*-linux*)
config_path="linux/alpha 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"
;;
s390*-*-linux*)
config_path="linux/s390 linux posix"
;;
# Note that bare i386 is not included here. We need cmpxchg.
i[456]86-*-linux*)
config_path="linux/x86 linux posix"
case " ${CC} ${CFLAGS} " in
*" -m64 "*)
;;
*)
if test -z "$with_arch"; then
XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
fi
esac
;;
# Similar jiggery-pokery for x86_64 multilibs, except here we
# can't rely on the --with-arch configure option, since that
# applies to the 64-bit side.
x86_64-*-linux*)
config_path="linux/x86 linux posix"
case " ${CC} ${CFLAGS} " in
*" -m32 "*)
XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
;;
esac
;;
# 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 "${target}" in
*-*-hpux11*)
# HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
XLDFLAGS="${XLDFLAGS} -lrt"
;;
*-*-mingw32*)
config_path="mingw32 posix"
;;
*-*-solaris2.[56]*)
config_path="posix95 posix"
XLDFLAGS="${XLDFLAGS} -lposix4"
;;
*)
;;
esac
|
