# This is a version of t-xscale-coff fine tuned for
# the eCos requirements from an ARM toolchain.

CROSS_LIBGCC1 = libgcc1-asm.a
LIB1ASMSRC    = xscale/lib1funcs.asm
LIB1ASMFUNCS  = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func _call_via_rX _interwork_call_via_rX

# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.
FPBIT = fp-bit.c
DPBIT = dp-bit.c

fp-bit.c: $(srcdir)/config/fp-bit.c
	echo '#define FLOAT' > fp-bit.c
	echo '#ifndef __ARMEB__' >> fp-bit.c
	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> fp-bit.c
	echo '#endif' >> fp-bit.c
	cat $(srcdir)/config/fp-bit.c >> fp-bit.c

dp-bit.c: $(srcdir)/config/fp-bit.c
	echo '#ifndef __ARMEB__' > dp-bit.c
	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> dp-bit.c
	echo '#define FLOAT_WORD_ORDER_MISMATCH' >> dp-bit.c
	echo '#endif' >> dp-bit.c
	cat $(srcdir)/config/fp-bit.c >> dp-bit.c

MULTILIB_OPTIONS        = mno-thumb-interwork/mthumb-interwork
MULTILIB_DIRNAMES       = normal interwork

MULTILIB_OPTIONS       += marm/mthumb
MULTILIB_DIRNAMES      += arm thumb
MULTILIB_REDUNDANT_DIRS = interwork/thumb=thumb

MULTILIB_OPTIONS       += mcpu=strongarm
MULTILIB_DIRNAMES      += strongarm
MULTILIB_EXCEPTIONS    += *mthumb-interwork/*mcpu=strongarm*
MULTILIB_EXCEPTIONS    += *mthumb/*mcpu=strongarm*
MULTILIB_EXCEPTIONS    += *mapcs-26/*mcpu=strongarm*
MULTILIB_MATCHES       += mcpu?strongarm=mcpu?strongarm110
MULTILIB_MATCHES       += mcpu?strongarm=mcpu?strongarm1110

MULTILIB_OPTIONS       += mcpu=xscale
MULTILIB_DIRNAMES      += xscale
MULTILIB_EXCEPTIONS    += *mcpu=strongarm*/*mcpu=xscale
MULTILIB_REDUNDANT_DIRS += interwork/thumb/xscale=thumb/xscale

EXTRA_MULTILIB_PARTS    = crtbegin.o crtend.o
LIBGCC                  = stmp-multilib
INSTALL_LIBGCC          = install-multilib

# Currently there is a bug somwehere in GCC's alias analysis
# or scheduling code that is breaking _fpmul_parts in libgcc1.c.
# Disabling function inlining is a workaround for this problem.
TARGET_LIBGCC2_CFLAGS = -Dinhibit_libc -fno-inline
