From: Kumar Gala <galak@kernel.crashing.org>
To: paulus@samba.org
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH 11/12] [POWERPC] bootwrapper: use physical address in PHDR for uImage
Date: Thu, 10 Apr 2008 05:48:50 -0500 [thread overview]
Message-ID: <1207824531-27168-12-git-send-email-galak@kernel.crashing.org> (raw)
In-Reply-To: <1207824531-27168-11-git-send-email-galak@kernel.crashing.org>
Now that we properly set the physical address in the program header of the
vmlinux ELF we can extract it to properly set the load and entry point for
u-boot uImages. Before we always hard coded the laod & entry point to 0.
However there are situations that the kernel may be built with a non-zero
physical address.
We use objdump to extract the PHDR. We assume that there is only one
PHDR in the vmlinux of type LOAD.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
arch/powerpc/boot/wrapper | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 14a0182..d6c96d9 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -230,10 +230,13 @@ if [ -n "$version" ]; then
uboot_version="-n Linux-$version"
fi
+# physical offset of kernel image
+membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'`
+
case "$platform" in
uboot)
rm -f "$ofile"
- mkimage -A ppc -O linux -T kernel -C gzip -a 00000000 -e 00000000 \
+ mkimage -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
$uboot_version -d "$vmz" "$ofile"
if [ -z "$cacheit" ]; then
rm -f "$vmz"
--
1.5.4.1
next prev parent reply other threads:[~2008-04-10 10:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-10 10:48 [PATCH 00/12 v3] [POWERPC] ppc32 mm init clean and 85xx kernel reloc Kumar Gala
2008-04-10 10:48 ` [PATCH 01/12] [POWERPC] Remove Kconfig option BOOT_LOAD Kumar Gala
2008-04-10 10:48 ` [PATCH 02/12] [POWERPC] Provide access to arch/powerpc include path on ppc64 Kumar Gala
2008-04-10 10:48 ` [PATCH 03/12] [POWERPC] Remove and replace uses of PPC_MEMSTART with memstart_addr Kumar Gala
2008-04-10 10:48 ` [PATCH 04/12] [POWERPC] Introduce lowmem_end_addr to distiguish from total_lowmem Kumar Gala
2008-04-10 10:48 ` [PATCH 05/12] [POWERPC] 85xx: Cleanup TLB initialization Kumar Gala
2008-04-10 10:48 ` [PATCH 06/12] [POWERPC] Use lowmem_end_addr to limit lmb allocations on ppc32 Kumar Gala
2008-04-10 10:48 ` [PATCH 07/12] [POWERPC] Rename __initial_memory_limit to __initial_memory_limit_addr Kumar Gala
2008-04-10 10:48 ` [PATCH 08/12] [POWERPC] Clean up some linker and symbol usage Kumar Gala
2008-04-10 10:48 ` [PATCH 09/12] [POWERPC] Move phys_addr_t definition into asm/types.h Kumar Gala
2008-04-10 10:48 ` [PATCH 10/12] [POWERPC] Update linker script to properly set physical addresses Kumar Gala
2008-04-10 10:48 ` Kumar Gala [this message]
2008-04-10 10:48 ` [PATCH 12/12] [POWERPC] 85xx: Add support for relocatble kernel (and booting at non-zero) Kumar Gala
2008-04-15 10:57 ` Paul Mackerras
2008-04-15 15:24 ` Kumar Gala
2008-04-15 22:53 ` Kumar Gala
2008-04-16 0:03 ` Paul Mackerras
2008-04-16 0:50 ` Kumar Gala
2008-04-15 10:12 ` [PATCH 09/12] [POWERPC] Move phys_addr_t definition into asm/types.h Paul Mackerras
2008-04-15 14:51 ` Kumar Gala
2008-04-15 7:34 ` [PATCH 03/12] [POWERPC] Remove and replace uses of PPC_MEMSTART with memstart_addr Paul Mackerras
2008-04-15 14:35 ` Kumar Gala
2008-04-15 14:51 ` Kumar Gala
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