ARC: handle gcc generated __builtin_trap for older compiler

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 <[email protected]> Signed-off-by: Vineet Gupta <[email protected]>
zerogcp · Jan 3, 2018 · af1be2e · af1be2e
1 parent f5a16b9
commit af1be2e
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
@@ -161,3 +161,11 @@ 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");
+}