sysdeps/powerpc/preconfigure.ac

   1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
   2 # Local preconfigure fragment for sysdeps/powerpc
   3
   4 case "$machine" in
   5 powerpc64le)
   6   base_machine=powerpc machine=powerpc/powerpc64/le
   7   ;;
   8 powerpc64*)
   9   base_machine=powerpc machine=powerpc/powerpc64/be
  10   ;;
  11 powerpc*)
  12   base_machine=powerpc machine=powerpc/powerpc32
  13   with_fp_cond="!defined __NO_FPRS__"
  14   case "$host_os" in
  15     *gnuspe*)
  16       # SPE support was dropped in glibc 2.30.
  17       AC_MSG_ERROR([Host system type $host is no longer supported.])
  18     ;;
  19   esac
  20   ;;
  21 esac
  22
  23 # Lets ask the compiler which Power processor we've got, in case the user did
  24 # not choose a --with-cpu value.  Scan a trivial generated assembly program
  25 # and scrape the first
  26 #   .machine <machine>
  27 # or
  28 #   .ascii "-mcpu=<machine>"
  29 # directive which shows up, and try using it.
  30 case "${machine}:${submachine}" in
  31 *powerpc*:)
  32   archcpu=`echo "int foo () { return 0; }" \
  33            | $CC $CFLAGS $CPPFLAGS -S -frecord-gcc-switches -xc -o - - \
  34            | grep -E "mcpu=|[.]machine" -m 1 \
  35            | sed -e "s/.*machine //" -e "s/.*mcpu=\(.*\)\"/\1/"`
  36   # Note if you add patterns here you must ensure that an appropriate
  37   # directory exists in sysdeps/powerpc.  Likewise, if we find a
  38   # cpu, don't let the generic configure append extra compiler options.
  39   case "$archcpu" in
  40   405fp|440fp|464fp|476fp)
  41     submachine=${archcpu%fp}
  42     AC_CACHE_VAL(libc_cv_cc_submachine,libc_cv_cc_submachine="")
  43     ;;
  44   405|440|464|476)
  45     submachine=${archcpu}
  46     AC_CACHE_VAL(libc_cv_cc_submachine,libc_cv_cc_submachine="")
  47     ;;
  48
  49   a2|970|power[[4-9]]|power5x|power6+|power10)
  50     submachine=${archcpu}
  51     AC_CACHE_VAL(libc_cv_cc_submachine,libc_cv_cc_submachine="")
  52     ;;
  53   *)
  54     # We couldn't figure it out, assume none
  55     ;;
  56   esac
  57   ;;
  58 esac