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linux/arch/powerpc/boot
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Sebastian Siewior c10c178a92 powerpc/boot: Compare _start against ei.loadsize instead ei.memsize 
If the vmlinux binary in memory is larger than 4 MiB than it collides
with the initial boot code which is linked at 4 MiB in case of cuBoot.
If the the uncompressed image size (on disk size) is less than 4 MiB
then it would fit. The difference between those two sizes is the bss
section. In cuBoot we have the dtb embedded right after the data
section so it is very likely that the reset of the bss section (in
kernel's start up code) will overwrite the dtb blob. Therefore we
reallocate the dtb. Something similar is allready done to the initrd.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-21 15:17:47 +11:00
..
dtc-src powerpc: Update in-kernel dtc and libfdt to version 1.2.0 2008-08-20 16:34:58 +10:00
dts powerpc/40x: Add support for Netstal HCU4 board 2008-10-17 13:28:05 -04:00
libfdt powerpc: Update in-kernel dtc and libfdt to version 1.2.0 2008-08-20 16:34:58 +10:00
.gitignore [POWERPC] Update arch/powerpc/boot/.gitignore 2008-05-20 00:35:29 -05:00
4xx.c [POWERPC] 4xx: Workaround for CHIP_11 Errata 2008-05-19 09:36:40 -05:00
4xx.h [POWERPC] 4xx: Add 405GPr and 405EP support in boot wrapper 2008-01-08 07:58:09 -06:00
44x.h
addnote.c powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
addRamDisk.c
bamboo.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cpm-serial.c [POWERPC] cpm-serial: Relocate CPM buffer descriptors and SMC parameter ram. 2008-04-17 01:01:37 -05:00
crt0.S
crtsavres.S [POWERPC] Fix bootwrapper builds with newer gcc versions 2008-06-16 15:00:52 +10:00
cuboot-8xx.c
cuboot-52xx.c powerpc/52xx: Make cuImage more robust in locating immr node. 2008-10-15 11:09:59 -06:00
cuboot-83xx.c [POWERPC] bootwrapper: convert cuboot-8{3,5}xx to dt_fixup_mac_address_by_alias 2008-01-23 19:32:47 -06:00
cuboot-85xx-cpm2.c [POWERPC] Add a cuboot wrapper for 85xx with CPM2 2008-01-27 14:10:36 -06:00
cuboot-85xx.c [POWERPC] bootwrapper: convert cuboot-8{3,5}xx to dt_fixup_mac_address_by_alias 2008-01-23 19:32:47 -06:00
cuboot-824x.c [POWERPC] Add initial iomega StorCenter board port. 2008-01-23 19:54:36 -06:00
cuboot-acadia.c powerpc/40x: Add cuboot wrapper for Acadia board 2008-10-17 10:31:19 -04:00
cuboot-bamboo.c [POWERPC] 4xx: Use correct board info structure in cuboot wrappers 2008-02-28 08:16:27 -06:00
cuboot-c2k.c powerpc: Boot code for the C2K 2008-06-09 13:42:25 +10:00
cuboot-ebony.c [POWERPC] 4xx: Use correct board info structure in cuboot wrappers 2008-02-28 08:16:27 -06:00
cuboot-katmai.c [POWERPC] 4xx: Use correct board info structure in cuboot wrappers 2008-02-28 08:16:27 -06:00
cuboot-mpc7448hpc2.c [POWERPC] bootwrapper: Build multiple cuImages 2008-02-07 11:40:19 +11:00
cuboot-pq2.c [POWERPC] cuboot-pq2: PCI fixes 2008-04-17 01:01:40 -05:00
cuboot-rainier.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cuboot-sam440ep.c powerpc/4xx: Sam440ep support 2008-06-11 08:32:49 -04:00
cuboot-sequoia.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cuboot-taishan.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
cuboot-warp.c [POWERPC] PIKA Warp: Update platform code to support Rev B boards 2008-05-29 07:06:56 -05:00
cuboot-yosemite.c [POWERPC] 4xx: Add bootwrapper for AMCC Yosemite board 2008-03-26 07:19:17 -05:00
cuboot.c
cuboot.h
dcr.h [POWERPC] 4xx: Add 405GPr and 405EP support in boot wrapper 2008-01-08 07:58:09 -06:00
devtree.c [POWERPC] Add bootwrapper function to get virtual reg from the device tree. 2008-04-17 01:01:37 -05:00
div64.S
dummy.c
ebony.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
elf.h
elf_util.c powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
ep88xc.c
ep405.c
ep8248e.c [POWERPC] 82xx: Embedded Planet EP8248E support 2008-01-23 19:34:43 -06:00
fixed-head.S
flatdevtree_env.h Fix file references in documentation and Kconfig 2008-01-22 10:43:36 -08:00
fsl-soc.c
fsl-soc.h
gunzip_util.c
gunzip_util.h
hack-coff.c
holly.c
install.sh
io.h powerpc: Move include files to arch/powerpc/include/asm 2008-08-04 12:02:00 +10:00
libfdt-wrapper.c powerpc/boot: Compare _start against ei.loadsize instead ei.memsize 2008-10-21 15:17:47 +11:00
libfdt_env.h powerpc: Update in-kernel dtc and libfdt to version 1.2.0 2008-08-20 16:34:58 +10:00
main.c powerpc/boot: Compare _start against ei.loadsize instead ei.memsize 2008-10-21 15:17:47 +11:00
Makefile powerpc/40x: Add cuboot wrapper for Acadia board 2008-10-17 10:31:19 -04:00
mktree.c
mpc8xx.c
mpc8xx.h
mpc52xx-psc.c [POWERPC] Add bootwrapper function to get virtual reg from the device tree. 2008-04-17 01:01:37 -05:00
mpsc.c [POWERPC] prpmc2800: Clean up dts properties 2008-04-15 21:21:24 +10:00
mv64x60.c [POWERPC] mv64x60: Remove device tree absolute path references 2008-04-15 21:21:24 +10:00
mv64x60.h
mv64x60_i2c.c [POWERPC] mv64x60: Remove device tree absolute path references 2008-04-15 21:21:24 +10:00
ns16550.c [POWERPC] Xilinx: boot support for Xilinx uart 16550. 2008-04-24 13:32:46 -05:00
of.c
of.h
ofconsole.c
oflib.c powerpc: Change the default link address for pSeries zImage kernels 2008-07-01 11:28:32 +10:00
ops.h [POWERPC] Add bootwrapper function to get virtual reg from the device tree. 2008-04-17 01:01:37 -05:00
page.h
planetcore.c
planetcore.h
ppc_asm.h
ppcboot.h
pq2.c
pq2.h
prpmc2800.c [POWERPC] mv64x60: Remove device tree absolute path references 2008-04-15 21:21:24 +10:00
ps3-head.S [POWERPC] PS3: Bootwrapper improvements 2008-04-01 20:43:07 +11:00
ps3-hvcall.S [POWERPC] PS3: Fix bootwrapper hang bug 2008-02-14 22:11:01 +11:00
ps3.c [POWERPC] PS3: Bootwrapper improvements 2008-04-01 20:43:07 +11:00
README
redboot-8xx.c [POWERPC] 8xx: Analogue & Micro Adder875 board support. 2008-01-23 19:34:40 -06:00
redboot-83xx.c [POWERPC] 83xx: Add support for Analogue & Micro ASP837E board 2008-06-02 14:44:25 -05:00
redboot.h [POWERPC] 8xx: Analogue & Micro Adder875 board support. 2008-01-23 19:34:40 -06:00
reg.h [POWERPC] 4xx: Add mfspr/mtspr inline macros to 4xx bootwrapper 2007-12-23 13:14:22 -06:00
rs6000.h
serial.c [POWERPC] mv64x60: Fix FDT compatible names: mv64x60 => mv64360 2008-04-15 21:21:24 +10:00
simple_alloc.c
simpleboot.c powerpc/virtex: Fix booting of Xilinx FPGAs with 16550 for 405 and 440 2008-07-04 00:58:59 -06:00
stdio.c
stdio.h
stdlib.c
stdlib.h
string.h
string.S
treeboot-bamboo.c
treeboot-ebony.c
treeboot-walnut.c [POWERPC] Start removing linux,network-index in favour of aliases 2008-03-26 07:19:16 -05:00
types.h
uartlite.c
util.S
virtex.c powerpc/virtex: Fix booting of Xilinx FPGAs with 16550 for 405 and 440 2008-07-04 00:58:59 -06:00
virtex405-head.S [POWERPC] bootwrapper: Add a firmware-independent simpleboot target. 2008-04-02 20:36:11 -05:00
wrapper powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
zImage.coff.lds.S powerpc: Change the default link address for pSeries zImage kernels 2008-07-01 11:28:32 +10:00
zImage.lds.S powerpc: Change the default link address for pSeries zImage kernels 2008-07-01 11:28:32 +10:00
zImage.ps3.lds.S

README 

To extract the kernel vmlinux, System.map, .config or initrd from the zImage binary:

objcopy -j .kernel:vmlinux -O binary zImage vmlinux.gz
objcopy -j .kernel:System.map -O binary zImage System.map.gz
objcopy -j .kernel:.config -O binary zImage config.gz
objcopy -j .kernel:initrd -O binary zImage.initrd initrd.gz


	Peter