CVS commit: src/usr.bin/mkubootimage

["Jared D. McNeill" <jmcneill%netbsd.org@localhost>]

Module Name:    src
Committed By:   jmcneill
Date:           Sun Feb  4 15:44:51 UTC 2018

Modified Files:
        src/usr.bin/mkubootimage: mkubootimage.1 mkubootimage.c
Added Files:
        src/usr.bin/mkubootimage: arm64.h

Log Message:
Add support for writing "AArch64 Linux kernel image" format images.

These images begin with a 64-byte header that includes a load offset,
image size, some flags, and a small (2 word) area at the start for
executable code.

These images are compatible with U-Boot's "booti" command, and can be
used to make U-Boot relocate our kernel to a 2MB aligned base address.
After relocation, U-Boot will jump to the code at the beginning of the
header, where we encode a relative branch forward instruction to branch
to the beginning of the kernel at offset +0x40.


To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/usr.bin/mkubootimage/arm64.h
cvs rdiff -u -r1.11 -r1.12 src/usr.bin/mkubootimage/mkubootimage.1
cvs rdiff -u -r1.22 -r1.23 src/usr.bin/mkubootimage/mkubootimage.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.