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History log of /src/sys/arch/luna68k/stand/boot/boot.ldscript
RevisionDateAuthorComments
 1.5  26-Jan-2013  tsutsui branches: 1.5.4;
Add proper padding to text section for elf2aout conversion.

The data and bss sections are 8 byte aligned on m68k ELF format,
but a.out header doesn't have section addresses and only
contains size values, so we have to pad size of text section
to make data section get aligned even after elf2aout.

Note elf2aout merges ELF data section into a.out text section
if binary is OMAGIC (i.e. text is writable too) so only
BSS section address was affected (and was almost harmless).
 1.4  20-Jan-2013  tsutsui branches: 1.4.2;
Specify text address via Makefile rather than hardcoding in boot.ldscript.
 1.3  10-Jan-2013  tsutsui Revert to using elf2aout(1) to build a.out binary.
a.out binary linked by ldscript doesn't work on some uncertain conditions.
 1.2  10-Jan-2013  tsutsui Link the target boot binary as a.out directly rather than using elf2aout(1).
Confirmed working on LUNA-I.
 1.1  05-Jan-2013  tsutsui First cut at NetBSD/luna68k native bootloader.

Based on 4.4BSD-Lite2/luna68k "Stinger" loader revision "Phase-31"
http://svnweb.freebsd.org/csrg/sys/luna68k/stand/
and MI libsa glue stuff are taken from hp300 etc.

Tested on LUNA-I and old DK315C SCSI disk drive.

LUNA's monitor PROM can load only an a.out binary in 4.3BSD FFS partition
(i.e. created by "newfs -O 0") on disks with OMRON's UniOS disklabel,
but now we can load an ELF kernel in root partition via this bootloader.
(See luna68k/disksubr.c for details of UniOS label)

TODO:
- LUNA-II support (check 68040 to adjust cpuspeed for DELAY())
- secondary SCSI support for LUNA-II
- netboot via le(4) (should be trivial)
- support boot options on bootloader prompt
- bootinfo (passing info about booted device and kernel symbols)
- support "press return to boot now, any other key for boot menu" method
like x86 bootloader (needs cnscan() like functions)
- tapeboot (anyone wants it?)
 1.4.2.3  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.4.2.2  23-Jan-2013  yamt sync with head
 1.4.2.1  20-Jan-2013  yamt file boot.ldscript was added on branch yamt-pagecache on 2013-01-23 00:05:53 +0000
 1.5.4.2  25-Feb-2013  tls resync with head
 1.5.4.1  26-Jan-2013  tls file boot.ldscript was added on branch tls-maxphys on 2013-02-25 00:28:48 +0000

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