[Blackfin] arch: In the double fault handler, set up the PT_RETI slot

In the double fault handler, set up the PT_RETI slot so that we print out the correct return address in the dumping code. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
git-mirror · May 7, 2008 · ddb3f00 · ddb3f00
1 parent 1bfb4b2
commit ddb3f00
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
@@ -295,6 +295,11 @@ ENTRY(_double_fault)
          */
         SAVE_ALL_SYS
 
+	/* The dumping functions expect the return address in the RETI
+	 * slot.  */
+	r6 = retx;
+	[sp + PT_PC] = r6;
+
         r0 = sp;        /* stack frame pt_regs pointer argument ==> r0 */
         SP += -12;
         call _double_fault_c;