Different ARM targets can use different conventions for passing and 
returning floating point numbers.  This is some initial support for that.  
It fixes 6 testsuite failures on ARM/NetBSD, which uses soft-float 
variants.

R.

2002-02-19  Richard Earnshaw  <rearnsha@arm.com>

	* arm-tdep.h (enum arm_float_model): New enum.
	(struct gdbarch_tdep): Add fp_model.
	* arm-tdep.c (arm_gdbarch_init): Set fp_model in tdep.  Defer setting
	up floating-point conversions until we know the floating-point model
	in use by the inferior.  Don't complain about being unable to
	determine the ABI of the inferior when we don't have one.
	(arm_extract_return_value): Support different floating-point models.
	(arm_store_return_value): Likewise.
	* armnbsd-tdep.c (arm_netbsd_aout_init_abi): Set fp_model in tdep to 
	ARM_FLOAT_SOFT.
	(arm_netbsd_elf_init_abi): Set fp_model to ARM_FLOAT_SOFT_VFP.