From 5d36aa9bbed32507b21e345f9d065868af5f5991 Mon Sep 17 00:00:00 2001 From: David Mosberger-Tang <dmosberger@gmail.com> Date: Thu, 9 Aug 2007 16:54:27 -0600 Subject: [PATCH] [IA64] make unwinder stop at last frame of the bootloader Add a dummy nop at the end of _start() to maintain the invariant that the return-pointer (rp) always point to the calling function. This makes unwinding stop at the last frame, as it should. Signed-off-by: David Mosberger-Tang <dmosberger@gmail.com> Signed-off-by: Tony Luck <tony.luck@intel.com> --- arch/ia64/hp/sim/boot/boot_head.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/ia64/hp/sim/boot/boot_head.S b/arch/ia64/hp/sim/boot/boot_head.S index a9bd71ac78e..8808565491f 100644 --- a/arch/ia64/hp/sim/boot/boot_head.S +++ b/arch/ia64/hp/sim/boot/boot_head.S @@ -26,6 +26,7 @@ GLOBAL_ENTRY(_start) movl sp = stack_mem+16384-16 bsw.1 br.call.sptk.many rp=start_bootloader +0: nop 0 /* dummy nop to make unwinding work */ END(_start) /* -- 2.20.1