79c8541924
This patch rewrites prep_kernel() in the zImage wrapper code to be clearer and more flexible. Notable changes: - Handling of the initrd image from prep_kernel() has moved into a new prep_initrd() function. - The address of the initrd image is now added as device tree properties, as the kernel expects. - We only copy a packaged initrd image to a new location if it is in danger of being clobbered when the kernel moves to its final location, instead of always. - By default we decompress the kernel directly to address 0, instead of requiring it to relocate itself. Platforms (such as OF) where doing this could clobber still-live firmware data structures can override the vmlinux_alloc hook to provide an alternate place to decompress the kernel. - We no longer pass lots of information between functions in global variables. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> |
||
|---|---|---|
| .. | ||
| dts | ||
| .gitignore | ||
| Makefile | ||
| README | ||
| addRamDisk.c | ||
| addnote.c | ||
| crt0.S | ||
| div64.S | ||
| dummy.c | ||
| elf.h | ||
| flatdevtree.c | ||
| flatdevtree.h | ||
| flatdevtree_env.h | ||
| flatdevtree_misc.c | ||
| gunzip_util.c | ||
| gunzip_util.h | ||
| hack-coff.c | ||
| install.sh | ||
| io.h | ||
| main.c | ||
| mktree.c | ||
| ns16550.c | ||
| of.c | ||
| ops.h | ||
| page.h | ||
| ppc_asm.h | ||
| rs6000.h | ||
| serial.c | ||
| simple_alloc.c | ||
| stdio.c | ||
| stdio.h | ||
| string.S | ||
| string.h | ||
| types.h | ||
| util.S | ||
| wrapper | ||
| zImage.coff.lds.S | ||
| zImage.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