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# -*- shell-script -*-
# 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
# For x86, we use slots in the TCB head for most of our TLS.
# The setup of those slots in beginTransaction can afford to
# use the global-dynamic model.
i[456]86-*-linux* | x86_64-*-linux*)
;;
*-*-linux*)
XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
;;
esac
fi
# Map the target cpu to an ARCH sub-directory. At the same time,
# work out any special compilation flags as necessary.
case "${target_cpu}" in
alpha*) ARCH=alpha ;;
ia64*) ARCH=ia64 ;;
mips*) ARCH=mips ;;
powerpc*) ARCH=powerpc ;;
s390*) ARCH=s390 ;;
i[456]86)
case " ${CC} ${CFLAGS} " in
*" -m64 "*)
;;
*)
if test -z "$with_arch"; then
XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
XCFLAGS="${XCFLAGS} -fomit-frame-pointer"
fi
esac
ARCH=x86
;;
x86_64)
case " ${CC} ${CFLAGS} " in
*" -m32 "*)
XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
XCFLAGS="${XCFLAGS} -fomit-frame-pointer"
;;
esac
ARCH=x86
;;
sparcv9 | sparc64)
# Note that sparcv7 and sparcv8 is not included here. We need cas.
echo "int i;" > conftestx.c
if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
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
ARCH=sparc
;;
*)
ARCH="${target_cpu}"
;;
esac
# Since we require POSIX threads, assume a POSIX system by default.
config_path="$ARCH posix generic"
# 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="$ARCH mingw32 posix generic"
;;
*-*-solaris2.[56]*)
config_path="$ARCH posix95 posix generic"
XLDFLAGS="${XLDFLAGS} -lposix4"
;;
*-*-darwin*)
config_path="$ARCH bsd posix generic"
;;
esac
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