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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-07-28 09:30:20 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-07-28 09:30:20 +0100
commit661299d9d0437a0ff72240f3d60016ac3a361a6e (patch)
tree765512576314fc3612b503f182b9ae4e60fcf849 /arch/cris/arch-v32/boot/compressed/README
parent05caac585f8abd6c0113856bc8858e3ef214d8a6 (diff)
parent41c018b7ecb60b1c2c4d5dee0cd37d32a94c45af (diff)
Merge with Linus' 2.6 tree
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+Creation of the self-extracting compressed kernel image (vmlinuz)
+-----------------------------------------------------------------
+$Id: README,v 1.1 2003/08/21 09:37:03 johana 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