src/sys/boot/alpha/libalpha/start.S, branch release/6.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2005-11-03T00:35:26+00:00

'RELENG_6_0_0_RELEASE'.

This commit was manufactured to restore the state of the 6.0-RELEASE image.

Fix whitespace.

2001-03-04T04:38:14+00:00

Move the call to extend_heap() from main to start so that if our BSS

2000-10-25T23:36:01+00:00

expands beyond the limit we will extend the address space before trying
to zero the BSS. This should give us plenty of headroom for modest
expansion of the loader.

Make the stack 12K- we seem to need a bit more.

2000-09-18T08:16:38+00:00

Rename 'stack' to 'stackbase' as this variable
more correctly denotes what it is.

Slight reorganisation of the Alpha/SRM loader build:

1999-09-03T19:42:18+00:00

 - Make as much of the makefile for each of the three flavours
   (disk, CDROM, net) common.
 - Special-case the libalpha startup module on its use in boot1, not
   the other way around.
 - Build the loader out of a "loader" directory

Reviewed by:	mjacob, dfr

* Fix a stack of warnings.

1999-09-01T09:11:14+00:00

* Make it possible to type a filename to boot1 so that it is possible to
  recover from fatally broken versions of /boot/loader.
* Make a start at a CD boot program (not yet functional).

$Id$ -> $FreeBSD$

1999-08-28T01:08:13+00:00

Bring the 'new-bus' to the i386. This extensively changes the way the

1999-04-16T21:22:55+00:00

i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core

* Extend the memory available for the heap from 256k to 512k.

1998-10-31T17:12:32+00:00

* Embed the stack into the bss section for loader and netboot.  This
  is required for netboot since otherwise the stack would be inside our
  heap.
* Install loader and netboot in /boot by default.
* Fix getbootfile so that it searches for a ',' instead of a ';'
  when terminating the filename.

This is the new unified bootstrap, sometimes known previously as the

1998-08-21T03:17:42+00:00

'three-stage' bootstrap.
There are a number of caveats with the code in its current state:
 - The i386 bootstrap only supports booting from a floppy.
 - The kernel and kld do not yet know how to deal with the extended
   information and module summary passed in.
 - PnP-based autodetection and demand loading of modules is not implemented.
 - i386 ELF kernel loading is not ready yet.
 - The i386 bootstrap is loaded via an ugly blockmap.

On the alpha, both net- and disk-booting (SRM console machines only) is
supported.  No blockmaps are used by this code.

Obtained from:	Parts from the NetBSD/i386 standalone bootstrap.