ARC: Fix pt_orig_r8 access
Syscall restarting fixes made pt_regs->orig_r8 a short word, which was
not reflected in the assembler code - thus could potentially break gdb
debugging.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 81164db..13d6c750 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -510,7 +510,7 @@
trap_with_param:
; stop_pc info by gdb needs this info
- st orig_r8_IS_BRKPT, [sp, PT_orig_r8]
+ stw orig_r8_IS_BRKPT, [sp, PT_orig_r8]
mov r0, r12
lr r1, [efa]
@@ -737,7 +737,7 @@
; things to what they were, before returning from L2 context
;----------------------------------------------------------------
- ld r9, [sp, PT_orig_r8] ; get orig_r8 to make sure it is
+ ldw r9, [sp, PT_orig_r8] ; get orig_r8 to make sure it is
brne r9, orig_r8_IS_IRQ2, 149f ; infact a L2 ISR ret path
ld r9, [sp, PT_status32] ; get statu32_l2 (saved in pt_regs)
@@ -784,9 +784,9 @@
;this case is for syscalls or Exceptions (with fake rtie)
#ifdef CONFIG_ARC_DBG_EVENT_TIMELINE
- ld r8, [sp, PT_orig_r8]
- cmp r8, NR_syscalls+1
- jeq 149f
+ ldw r8, [sp, PT_orig_r8]
+ cmp r8, orig_r8_IS_SCALL_RESTARTED
+ jhi 149f
TAKE_SNAP_ASM r9, r10, SNAP_TRAP_OUT
j 150f
