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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libitm/] [configure.tgt] - Blame information for rev 761

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1 737 jeremybenn
# -*- shell-script -*-
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#   Copyright (C) 2011, 2012 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# This is the target specific configuration file.  This is invoked by the
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# autoconf generated configure script.  Putting it in a separate shell file
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# lets us skip running autoconf when modifying target specific information.
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# This file switches on the shell variable ${target}, and sets the
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# following shell variables:
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#  config_path          An ordered list of directories to search for
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#                       sources and headers.  This is relative to the
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#                       config subdirectory of the source tree.
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#  XCFLAGS              Add extra compile flags to use.
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#  XLDFLAGS             Add extra link flags to use.
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# Optimize TLS usage by avoiding the overhead of dynamic allocation.
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if test "$gcc_cv_have_tls" = yes ; then
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  case "${target}" in
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    # For x86, we use slots in the TCB head for most of our TLS.
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    # The setup of those slots in beginTransaction can afford to
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    # use the global-dynamic model.
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    i[456]86-*-linux* | x86_64-*-linux*)
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        ;;
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    *-*-linux*)
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        XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
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        ;;
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  esac
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fi
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# Map the target cpu to an ARCH sub-directory.  At the same time,
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# work out any special compilation flags as necessary.
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case "${target_cpu}" in
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  alpha*)               ARCH=alpha ;;
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  rs6000 | powerpc*)    ARCH=powerpc ;;
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  arm*)         ARCH=arm ;;
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  i[3456]86)
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        case " ${CC} ${CFLAGS} " in
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          *" -m64 "*)
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            ;;
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          *)
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            if test -z "$with_arch"; then
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              XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
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              XCFLAGS="${XCFLAGS} -fomit-frame-pointer"
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            fi
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        esac
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        ARCH=x86
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        ;;
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  sh*)          ARCH=sh ;;
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  sparc)
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        case " ${CC} ${CFLAGS} " in
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          *" -m64 "*)
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            ;;
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          *)
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            if test -z "$with_cpu"; then
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              XCFLAGS="${XCFLAGS} -mcpu=v9"
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            fi
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        esac
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        ARCH=sparc
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        ;;
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  sparc64|sparcv9)
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        case " ${CC} ${CFLAGS} " in
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          *" -m32 "*)
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            XCFLAGS="${XCFLAGS} -mcpu=v9"
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            ;;
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          *" -m64 "*)
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            ;;
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          *)
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            if test "x$with_cpu" = xv8; then
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              XCFLAGS="${XCFLAGS} -mcpu=v9"
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            fi
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            ;;
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        esac
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        ARCH=sparc
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        ;;
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  x86_64)
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        case " ${CC} ${CFLAGS} " in
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          *" -m32 "*)
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            XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686"
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            XCFLAGS="${XCFLAGS} -fomit-frame-pointer"
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            ;;
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        esac
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        ARCH=x86
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        ;;
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  *)
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        ARCH="${target_cpu}"
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        ;;
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esac
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# For the benefit of top-level configure, determine if the cpu is supported.
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test -d ${srcdir}/config/$ARCH || UNSUPPORTED=1
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# Since we require POSIX threads, assume a POSIX system by default.
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config_path="$ARCH posix generic"
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# Other system configury
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case "${target}" in
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  *-*-linux*)
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        if test "$enable_linux_futex" = yes; then
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          config_path="linux/$ARCH linux $config_path"
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        fi
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        ;;
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  powerpc*-*-aix* | rs6000-*-aix*)
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        # The system ought to be supported, but sjlj.S has not been ported.
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        UNSUPPORTED=1
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        ;;
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  *-*-gnu* | *-*-k*bsd*-gnu \
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  | *-*-netbsd* | *-*-freebsd* | *-*-openbsd* \
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  | *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11* \
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  | *-*-darwin* | *-*-aix*)
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        # POSIX system.  The OS is supported.
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        ;;
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  *)    # Non-POSIX, or embedded system
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        UNSUPPORTED=1
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        ;;
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esac

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