John Carter wrote:
I'm trying to create a cross compiler hosted on i386 linux targetting an embedded arm thumb device with thumb-interworking on.
You need to the modify gcc-4.X/gcc/config/arm/t-arm-elf file to enable multilib for thumb interworking before building gcc. For gcc 4.0 targetting eCos I had to add the following patch. I think that by default they are not enabled (just as BE support isn't) so the resulting build remains relatively small as each variant of the supporting libraries under installdir/arm-elf/lib is about 15Mb.
--- o 2004-09-01 14:14:21.000000000 +0300 +++ t-arm-elf 2005-05-19 12:54:41.000000000 +0300 @@ -23,8 +23,8 @@ # MULTILIB_DIRNAMES += fpu soft # MULTILIB_EXCEPTIONS += *mthumb/*mhard-float* # -# MULTILIB_OPTIONS += mno-thumb-interwork/mthumb-interwork -# MULTILIB_DIRNAMES += normal interwork +MULTILIB_OPTIONS += mno-thumb-interwork/mthumb-interwork +MULTILIB_DIRNAMES += normal interwork # # MULTILIB_OPTIONS += fno-leading-underscore/fleading-underscore # MULTILIB_DIRNAMES += elf under
