[commit] r942 - trunk/openbios-devel/arch/ppc/qemu

[repository service]

Author: afaerber
Date: Tue Nov  2 23:07:27 2010
New Revision: 942
URL: http://tracker.coreboot.org/trac/openbios/changeset/942

Log:
ppc: Use vector-local version of exception_return

On ppc64 the high 32 address bits are clear, so ba's sign extension
cannot be used to branch to the ROM version of exception_return.
Use a relative branch to the relocated version instead.

This fixes relocation linker errors for ppc64.

Signed-off-by: Andreas Färber 
Acked-by: Alexander Graf

Modified:
   trunk/openbios-devel/arch/ppc/qemu/start.S

Modified: trunk/openbios-devel/arch/ppc/qemu/start.S
==============================================================================
--- trunk/openbios-devel/arch/ppc/qemu/start.S	Mon Nov  1 18:31:11 2010	(r941)
+++ trunk/openbios-devel/arch/ppc/qemu/start.S	Tue Nov  2 23:07:27 2010	(r942)
@@ -206,7 +206,7 @@
    addi	r3,r3,LO(dsi_exception)
    mtctr	r3
    bctrl
-	ba	exception_return
+	b	exception_return

VECTOR( 0x400, "ISI" ):
    EXCEPTION_PREAMBLE
@@ -214,7 +214,7 @@
    addi	r3,r3,LO(isi_exception)
    mtctr	r3
    bctrl
-	ba	exception_return
+	b	exception_return

ILLEGAL_VECTOR( 0x500 )
    ILLEGAL_VECTOR( 0x600 )