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| author | David Mosberger-Tang <dmosberger@gmail.com> | 2007-08-09 16:54:27 -0600 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-08-13 13:26:02 -0700 |
| commit | 5d36aa9bbed32507b21e345f9d065868af5f5991 (patch) | |
| tree | 08737711414436799ea689290198cfbf0777769b /arch/ia64 | |
| parent | a1287476e86568374ed6aadbb4123d9eff6f7b09 (diff) | |
| download | linux-5d36aa9bbed32507b21e345f9d065868af5f5991.tar.gz linux-5d36aa9bbed32507b21e345f9d065868af5f5991.tar.bz2 linux-5d36aa9bbed32507b21e345f9d065868af5f5991.zip | |
[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>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/hp/sim/boot/boot_head.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/hp/sim/boot/boot_head.S b/arch/ia64/hp/sim/boot/boot_head.S index a9bd71ac78e2..8808565491fb 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) /* |