scripts/build/arch/arm.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Oct 26 23:11:10 2009 +0100 (2009-10-26)
changeset 1597 fa8f3ab724f9
parent 1596 ca1bf632da51
child 2563 e17f35b05539
permissions -rw-r--r--
arch/arm: add THUMB interworking support

Add config option to build wtarget code with THUMB interworking.
This is used to build the C library as well as all other code
that runs on the target.
     1 # Compute ARM-specific values
     2 
     3 CT_DoArchTupleValues() {
     4     # The architecture part of the tuple:
     5     CT_TARGET_ARCH="${CT_ARCH}${target_endian_eb}"
     6 
     7     # The system part of the tuple:
     8     case "${CT_LIBC},${CT_ARCH_ARM_EABI}" in
     9         *glibc,y)   CT_TARGET_SYS=gnueabi;;
    10         uClibc,y)   CT_TARGET_SYS=uclibcgnueabi;;
    11         *,y)        CT_TARGET_SYS=eabi;;
    12     esac
    13 
    14     # Set the default instrcution set mode
    15     case "${CT_ARCH_ARM_MODE}" in
    16         arm)    ;;
    17         thumb)
    18             CT_ARCH_CC_CORE_EXTRA_CONFIG="--with-mode=thumb"
    19             CT_ARCH_CC_EXTRA_CONFIG="--with-mode=thumb"
    20 #            CT_ARCH_TARGET_CFLAGS="-mthumb"
    21             ;;
    22     esac
    23 
    24     if [ "${CT_ARCH_ARM_INTERWORKING}" = "y" ]; then
    25         CT_ARCH_TARGET_CFLAGS+=" -mthumb-interwork"
    26     fi
    27 }