# -*- shell-script -*- # Copyright (C) 2011-2013 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # 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 "${target_cpu}" in alpha*) ARCH=alpha ;; rs6000 | powerpc*) XCFLAGS="${XCFLAGS} -mhtm" ARCH=powerpc ;; arm*) ARCH=arm ;; i[3456]86) case " ${CC} ${CFLAGS} " in *" -m64 "*|*" -mx32 "*) ;; *) if test -z "$with_arch"; then XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" XCFLAGS="${XCFLAGS} -fomit-frame-pointer" fi esac XCFLAGS="${XCFLAGS} -mrtm" ARCH=x86 ;; sh*) ARCH=sh ;; sparc) case " ${CC} ${CFLAGS} " in *" -m64 "*) ;; *) if test -z "$with_cpu"; then XCFLAGS="${XCFLAGS} -mcpu=v9" fi esac ARCH=sparc ;; sparc64|sparcv9) case " ${CC} ${CFLAGS} " in *" -m32 "*) XCFLAGS="${XCFLAGS} -mcpu=v9" ;; *" -m64 "*) ;; *) if test "x$with_cpu" = xv8; then XCFLAGS="${XCFLAGS} -mcpu=v9" fi ;; esac ARCH=sparc ;; x86_64) case " ${CC} ${CFLAGS} " in *" -m32 "*) XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686" XCFLAGS="${XCFLAGS} -fomit-frame-pointer" ;; esac XCFLAGS="${XCFLAGS} -mrtm" ARCH=x86 ;; s390|s390x) XCFLAGS="${XCFLAGS} -mzarch -mhtm" ARCH=s390 ;; *) ARCH="${target_cpu}" ;; esac # For the benefit of top-level configure, determine if the cpu is supported. test -d ${srcdir}/config/$ARCH || UNSUPPORTED=1 # Since we require POSIX threads, assume a POSIX system by default. config_path="$ARCH posix generic" # Other system configury case "${target}" in *-*-linux*) if test "$enable_linux_futex" = yes; then config_path="linux/$ARCH linux $config_path" fi ;; powerpc*-*-aix* | rs6000-*-aix*) # The system ought to be supported, but sjlj.S has not been ported. UNSUPPORTED=1 ;; *-*-gnu* | *-*-k*bsd*-gnu \ | *-*-netbsd* | *-*-freebsd* | *-*-openbsd* \ | *-*-solaris2* | *-*-sysv4* | *-*-hpux11* \ | *-*-darwin* | *-*-aix*) # POSIX system. The OS is supported. ;; *) # Non-POSIX, or embedded system UNSUPPORTED=1 ;; esac