sysdeps/arm/preconfigure

   1 case "$machine" in
   2 arm*)
   3         base_machine=arm
   4         case $config_os in
   5         linux-gnueabi*)
   6                 # Lets ask the compiler which ARM family we've got
   7                 # Unfortunately it doesn't define any flags for implementations
   8                 # that you might pass to -mcpu or -mtune
   9                 # Note if you add patterns here you must ensure that
  10                 # an appropriate directory exists in sysdeps/arm
  11                 archcppflag=`echo "" |
  12                 $CC $CFLAGS $CPPFLAGS -E -dM - |
  13                   grep __ARM_ARCH |
  14                   sed -e 's/^#define //' -e 's/ .*//'`
  15
  16                 case x$archcppflag in
  17                 x__ARM_ARCH_[89]*__)
  18                   machine=armv7
  19                   echo "Found compiler is configured for something newer than v7 - using v7"
  20                   ;;
  21
  22                 x__ARM_ARCH_7A__)
  23                   machine=armv7
  24                   echo "Found compiler is configured for $machine"
  25                   ;;
  26
  27                 x__ARM_ARCH_6T2__)
  28                   machine=armv6t2
  29                   echo "Found compiler is configured for $machine"
  30                   ;;
  31
  32                 *)
  33                   machine=arm
  34                   echo 2>&1 "arm/preconfigure: Did not find ARM architecture type; using default"
  35                   ;;
  36                 esac
  37
  38                 machine=arm/$machine
  39                 if [ "${CFLAGS+set}" != "set" ]; then
  40                   CFLAGS="-g -O2"
  41                 fi
  42                 CFLAGS="$CFLAGS -fno-unwind-tables"
  43                 ;;
  44         *)
  45                 echo "Old ABI no longer supported" 2>&1
  46                 exit 1
  47                 ;;
  48         esac
  49         ;;
  50 esac