arch: arc: Rename _Fault to z_arc_fault

The exception fault handler function is named _Fault which is inconsistent
with all other arch-specific functions present in Zephyr. This patch
replaces the name with z_arc_fault.

Signed-off-by: Joel Holdsworth <[email protected]>

Author: jhol

arch/arc/core/fault.c

@@ -346,7 +346,7 @@ static void dump_exception_info(uint32_t vector, uint32_t cause, uint32_t parame
  * invokes the user provided routine k_sys_fatal_error_handler() which is
  * responsible for implementing the error handling policy.
  */
-void _Fault(struct arch_esf *esf, uint32_t old_sp)
+void z_arc_fault(struct arch_esf *esf, uint32_t old_sp)
 {
 	uint32_t vector, cause, parameter;
 	uint32_t exc_addr = z_arc_v2_aux_reg_read(_ARC_V2_EFA);

arch/arc/core/fault_s.S

@@ -19,7 +19,7 @@
 #include <zephyr/syscall.h>
 #include <zephyr/arch/arc/asm-compat/assembler.h>
 
-GTEXT(_Fault)
+GTEXT(z_arc_fault)
 GTEXT(__reset)
 GTEXT(__memory_error)
 GTEXT(__instruction_error)
@@ -99,11 +99,11 @@ _exc_entry:
 
 	_save_exc_regs_into_stack
 
-	/* sp is parameter of _Fault */
+	/* sp is parameter of z_arc_fault */
 	MOVR r0, sp
 	/* ilink is the thread's original sp */
 	MOVR r1, ilink
-	jl _Fault
+	jl z_arc_fault
 
 _exc_return:
 /* the exception cause must be fixed in exception handler when exception returns