Currently we set the start of the .text section to be 4Mb for pSeries.
In situations where the zImage is > 8Mb we'll fail to boot (due to
overlapping with OF). Move .text in a pSeries zImage from 4MB to 64MB
(well past OF).
Signed-off-by: Tony Breeds <[EMAIL PROTECTED]>
---
- Compile tested for *_defconfig with only pSeries chaning it's link
address.
- Boot tested on POWER6
arch/powerpc/boot/wrapper | 14 ++++++++++++--
arch/powerpc/boot/zImage.coff.lds.S | 1 -
arch/powerpc/boot/zImage.lds.S | 1 -
3 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index d6c96d9..b5dfc1f 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -138,14 +138,20 @@ objflags=-S
tmp=$tmpdir/zImage.$$.o
ksection=.kernel:vmlinux.strip
isection=.kernel:initrd
+link_address='0x400000'
case "$platform" in
-pmac|pseries|chrp)
+pseries)
+ platformo=$object/of.o
+ link_address='0x4000000'
+ ;;
+pmac|chrp)
platformo=$object/of.o
;;
coff)
platformo=$object/of.o
lds=$object/zImage.coff.lds
+ link_address='0x500000'
;;
miboot|uboot)
# miboot and U-boot want just the bare bits, not an ELF binary
@@ -190,6 +196,7 @@ ps3)
objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
ksection=.kernel:vmlinux.bin
isection=.kernel:initrd
+ link_address=''
;;
ep88xc|ep405|ep8248e)
platformo="$object/fixed-head.o $object/$platform.o"
@@ -268,7 +275,10 @@ if [ -n "$dtb" ]; then
fi
if [ "$platform" != "miboot" ]; then
- ${CROSS}ld -m elf32ppc -T $lds -o "$ofile" \
+ if [ -n "$link_address" ] ; then
+ text_start="-Ttext $link_address"
+ fi
+ ${CROSS}ld -m elf32ppc -T $lds $text_start -o "$ofile" \
$platformo $tmp $object/wrapper.a
rm $tmp
fi
diff --git a/arch/powerpc/boot/zImage.coff.lds.S
b/arch/powerpc/boot/zImage.coff.lds.S
index fe87a90..856dc78 100644
--- a/arch/powerpc/boot/zImage.coff.lds.S
+++ b/arch/powerpc/boot/zImage.coff.lds.S
@@ -3,7 +3,6 @@ ENTRY(_zimage_start_opd)
EXTERN(_zimage_start_opd)
SECTIONS
{
- . = (5*1024*1024);
_start = .;
.text :
{
diff --git a/arch/powerpc/boot/zImage.lds.S b/arch/powerpc/boot/zImage.lds.S
index f6e380f..0962d62 100644
--- a/arch/powerpc/boot/zImage.lds.S
+++ b/arch/powerpc/boot/zImage.lds.S
@@ -3,7 +3,6 @@ ENTRY(_zimage_start)
EXTERN(_zimage_start)
SECTIONS
{
- . = (4*1024*1024);
_start = .;
.text :
{
--
1.5.5.1
Yours Tony
linux.conf.au http://www.marchsouth.org/
Jan 19 - 24 2009 The Australian Linux Technical Conference!
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