| GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. |
| # Local preconfigure fragment for sysdeps/arm |
| |
| case "$machine" in |
| arm*) |
| case $config_os in |
| linux-gnueabi*) |
| # If the compiler enables unwind tables by default, this causes |
| # problems with undefined symbols in -nostdlib link tests. To |
| # avoid this, add -fno-unwind-tables here and remove it in |
| # sysdeps/unix/sysv/linux/arm/configure.ac after those tests have |
| # been run. |
| if test "${CFLAGS+set}" != "set"; then |
| CFLAGS="-g -O2" |
| fi |
| CFLAGS="$CFLAGS -fno-unwind-tables" |
| ;; |
| linux*) |
| AC_MSG_ERROR([Old ABI no longer supported]) |
| ;; |
| esac |
| |
| base_machine=arm |
| # Lets ask the compiler which ARM family we've got |
| # Unfortunately it doesn't define any flags for implementations |
| # that you might pass to -mcpu or -mtune |
| # Note if you add patterns here you must ensure that |
| # an appropriate directory exists in sysdeps/arm |
| archcppflag=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | |
| sed -n 's/^#define \(__ARM_ARCH_[0-9].*__\) .*$/\1/p'` |
| |
| case "x$archcppflag" in |
| x__ARM_ARCH_[89]*__) |
| machine=armv7 |
| AC_MSG_NOTICE([Found compiler is configured for something newer than v7 - using v7]) |
| ;; |
| |
| x__ARM_ARCH_7A__) |
| machine=armv7 |
| AC_MSG_NOTICE([Found compiler is configured for $machine]) |
| ;; |
| |
| x__ARM_ARCH_6T2__) |
| machine=armv6t2 |
| AC_MSG_NOTICE([Found compiler is configured for $machine]) |
| ;; |
| x__ARM_ARCH_6*__) |
| machine=armv6 |
| AC_MSG_NOTICE([Found compiler is configured for $machine]) |
| ;; |
| *) |
| machine=arm |
| AC_MSG_WARN([arm/preconfigure: Did not find ARM architecture type; using default]) |
| ;; |
| esac |
| |
| machine=arm/$machine |
| esac |
