[src/trunk]: src/lib/csu/arch/powerpc Adapt to new ___start definition.

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/59f2f64d1071
branches:  trunk
changeset: 766703:59f2f64d1071
user:      matt <matt%NetBSD.org@localhost>
date:      Thu Jun 30 20:10:17 2011 +0000

description:
Adapt to new ___start definition.
Use PIC method to load %r13 with address of _SDA_BASE_

diffstat:

 lib/csu/arch/powerpc/crt0.S |  16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diffs (34 lines):

diff -r ad4aa7628597 -r 59f2f64d1071 lib/csu/arch/powerpc/crt0.S
--- a/lib/csu/arch/powerpc/crt0.S       Thu Jun 30 20:09:15 2011 +0000
+++ b/lib/csu/arch/powerpc/crt0.S       Thu Jun 30 20:10:17 2011 +0000
@@ -29,21 +29,23 @@
 
 #include <powerpc/asm.h>
 
-RCSID("$NetBSD: crt0.S,v 1.1 2011/02/08 02:02:25 matt Exp $")
+RCSID("$NetBSD: crt0.S,v 1.2 2011/06/30 20:10:17 matt Exp $")
 
 STRONG_ALIAS(_start,__start)
 
        .weak   _SDA_BASE_
-       .weak   _SDA_BASE2_
 
 ENTRY_NOPROFILE(__start)
+       bcl     20,31,1f
+1:
+       mflr    %r11
        /* SVR4 ABI says small data is in r13 */
-       lis     %r13,_SDA_BASE_@ha
-       addi    %r13,%r13,_SDA_BASE_@l
+       addis   %r13,%r11,_SDA_BASE_-1b@ha
+       addi    %r13,%r13,_SDA_BASE_-1b@l
 
-       /* E[mbedded] ABI says small data is in r2 */
-       lis     %r2,_SDA_BASE2_@ha
-       addi    %r2,%r2,_SDA_BASE2_@l
+       mr      %r3,%r6
+       mr      %r4,%r7
+       mr      %r5,%r8
 
        b       ___start
 END(__start)