* arm-linux-tdep.c (ARM_SET_R7_SIGRETURN, ARM_SET_R7_RT_SIGRETURN)

	* arm-linux-tdep.c (ARM_SET_R7_SIGRETURN, ARM_SET_R7_RT_SIGRETURN)
	(ARM_EABI_SYSCALL, arm_linux_sigtramp_cache, arm_linux_sigreturn_init)
	(arm_linux_rt_sigreturn_init, arm_linux_sigreturn_tramp_frame)
	(arm_linux_rt_sigreturn_tramp_frame)
	(arm_eabi_linux_sigreturn_tramp_frame)
	(arm_eabi_linux_rt_sigreturn_tramp_frame): New.
	(arm_linux_init_abi): Register the new signal unwinders.
	(arm_linux_in_sigtramp, arm_linux_sigcontext_register_address):
	Delete.
	* arm-tdep.c (SIGCONTEXT_REGISTER_ADDRESS_P)
	(SIGCONTEXT_REGISTER_ADDRESS, arm_make_sigtramp_cache)
	(arm_sigtramp_this_id, arm_sigtramp_prev_register)
	(arm_sigtramp_unwind, arm_sigtramp_unwind_sniffer): Delete.
	(arm_gdbarch_init): Don't register a signal unwinder.
	* config/arm/tm-linux.h (arm_linux_in_sigtramp)
	(arm_linux_sigcontext_register_address): Delete prototypes.
	(DEPRECATED_IN_SIGTRAMP, SIGCONTEXT_REGISTER_ADDRESS): Delete.
	* Makefile.in (arm-linux-tdep.o): Update.