diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/cris/arch-v10/boot/compressed/README |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/cris/arch-v10/boot/compressed/README')
-rw-r--r-- | arch/cris/arch-v10/boot/compressed/README | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/cris/arch-v10/boot/compressed/README b/arch/cris/arch-v10/boot/compressed/README new file mode 100644 index 00000000000..48b3db9924b --- /dev/null +++ b/arch/cris/arch-v10/boot/compressed/README @@ -0,0 +1,25 @@ +Creation of the self-extracting compressed kernel image (vmlinuz) +----------------------------------------------------------------- +$Id: README,v 1.1 2001/12/17 13:59:27 bjornw Exp $ + +This can be slightly confusing because it's a process with many steps. + +The kernel object built by the arch/etrax100/Makefile, vmlinux, is split +by that makefile into text and data binary files, vmlinux.text and +vmlinux.data. + +Those files together with a ROM filesystem can be catted together and +burned into a flash or executed directly at the DRAM origin. + +They can also be catted together and compressed with gzip, which is what +happens in this makefile. Together they make up piggy.img. + +The decompressor is built into the file decompress.o. It is turned into +the binary file decompress.bin, which is catted together with piggy.img +into the file vmlinuz. It can be executed in an arbitrary place in flash. + +Be careful - it assumes some things about free locations in DRAM. It +assumes the DRAM starts at 0x40000000 and that it is at least 8 MB, +so it puts its code at 0x40700000, and initial stack at 0x40800000. + +-Bjorn |