ARCv3: enable HAVE_REGS_AND_STACK_ACCESS_API

All the supporting functions and defines are the same for all three ARC
architecture flavors. Define missing regoffset_table for ARCv3.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com>

Author: Sergey Matyukevich

arch/arc/include/asm/ptrace.h

@@ -124,6 +124,8 @@ struct pt_regs {
 	unsigned long status32;
 };
 
+#define MAX_REG_OFFSET offsetof(struct pt_regs, status32)
+
 /* ARCv3 callee regs start from r14; gp is r30 not r26 */
 struct callee_regs {
 	unsigned long r14, r15, r16, r17, r18, r19, r20, r21, r22, r23, r24, r25, r26;

arch/arc/kernel/ptrace.c

@@ -52,7 +52,7 @@ static const struct pt_regs_offset regoffset_table[] = {
 	REG_OFFSET_END,
 };
 
-#else
+#elif defined(CONFIG_ISA_ARCV2)
 
 static const struct pt_regs_offset regoffset_table[] = {
 	REG_OFFSET_NAME(orig_r0),
@@ -95,6 +95,38 @@ static const struct pt_regs_offset regoffset_table[] = {
 	REG_OFFSET_NAME(status32),
 	REG_OFFSET_END,
 };
+
+#else /* CONFIG_ISA_ARCV3 */
+
+static const struct pt_regs_offset regoffset_table[] = {
+	REG_OFFSET_NAME(orig_r0),
+	REG_OFFSET_NAME(r58),
+	REG_OFFSET_NAME(r59),
+	REG_OFFSET_NAME(ecr),
+	REG_OFFSET_NAME(bta),
+	REG_OFFSET_NAME(fp),
+	REG_OFFSET_NAME(gp),
+	REG_OFFSET_NAME(sp),
+	REG_OFFSET_NAME(r0),
+	REG_OFFSET_NAME(r1),
+	REG_OFFSET_NAME(r2),
+	REG_OFFSET_NAME(r3),
+	REG_OFFSET_NAME(r4),
+	REG_OFFSET_NAME(r5),
+	REG_OFFSET_NAME(r6),
+	REG_OFFSET_NAME(r7),
+	REG_OFFSET_NAME(r8),
+	REG_OFFSET_NAME(r9),
+	REG_OFFSET_NAME(r10),
+	REG_OFFSET_NAME(r11),
+	REG_OFFSET_NAME(r12),
+	REG_OFFSET_NAME(r13),
+	REG_OFFSET_NAME(blink),
+	REG_OFFSET_NAME(ret),
+	REG_OFFSET_NAME(status32),
+	REG_OFFSET_END,
+};
+
 #endif
 
 static struct callee_regs *task_callee_regs(struct task_struct *tsk)