README
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- Creation of the self-extracting compressed kernel image (vmlinuz)
- -----------------------------------------------------------------
- $Id: README,v 1.1 2000/11/22 17:20:46 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