Commit bd675574 authored Dec 08, 2017 by Vineet Gupta Committed by Greg Kroah-Hartman Jul 10, 2019

ARC: handle gcc generated __builtin_trap for older compiler



commit af1be2e21203867cb958aaceed5366e2e24b88e8 upstream.

ARC gcc prior to GNU 2018.03 release didn't have a target specific
__builtin_trap() implementation, generating default abort() call.

Implement the abort() call - emulating what newer gcc does for the same,
as suggested by Arnd.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 074d0aae

arch/arc/kernel/traps.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -155,3 +155,11 @@ void do_insterror_or_kprobe(unsigned long address, struct pt_regs *regs)

		insterror_is_error(address, regs);
		}

		/*
		* abort() call generated by older gcc for __builtin_trap()
		*/
		void abort(void)
		{
		__asm__ __volatile__("trap_s 5\n");
		}