* Makefile.in (arm_linux_tdep_h): New variable.
(arm-linux-nat.o, arm-linux-tdep.o): Update.
* arm-linux-nat.c: Include "arm-linux-tdep.h".
(typeNone, typeSingle, typeDouble, typeExtended)
(FPWORDS, ARM_CPSR_REGNUM, FPREG, FPA11)
(fetch_nwfpe_single, fetch_nwfpe_double, fetch_nwfpe_none)
(fetch_nwfpe_extended, fetch_nwfpe_register, store_nwfpe_single)
(store_nwfpe_double, store_nwfpe_extended, store_nwfpe_register):
Delete.
(fetch_fpregister, fetch_fpregs, store_fpregister, store_fpregs):
Use gdb_byte buffers, NWFPE_FPSR_OFFSET, supply_nwfpe_register,
and collect_nwfpe_register.
(fill_gregset, supply_gregset, fill_fpregset, supply_fpregset): Use
new regset functions.
* arm-linux-tdep.c: Include "regset.h" and "arm-linux-tdep.h".
(arm_apcs_32): New declaration.
(ARM_LINUX_SIZEOF_GREGSET, arm_linux_supply_gregset)
(arm_linux_collect_gregset, typeNone, typeSingle, typeDouble)
(typeExtended, supply_nwfpe_register, collect_nwfpe_register)
(arm_linux_supply_nwfpe, arm_linux_collect_nwfpe)
(arm_linux_regset_from_core_section): New.
(arm_linux_init_abi): Register arm_linux_regset_from_core_section.
* arm-linux-tdep.h: New file.
* arm-tdep.h (struct regset): Declare.
(struct gdbarch_tdep): Add gregset, fpregset members.
* config/arm/linux.mh (NATDEPFILES): Remove corelow.o and
core-regset.o.
* config/arm/linux.mt (TDEPFILES): Add corelow.o.