Commit Graph

400 Commits

Author SHA1 Message Date
John Baldwin
773065b3b8 Switch to using the .code16 as(1) directive and using 16-bit assembly
code instead of using 32-bit code and having to just "know" that it's
really 16-bit instructions when things run.  This also allows the code
to use fewer macros and more actual assembly statements, which eases
maintenance.  Unfortunately, due to as(1) brokenness, we still use m4
macros for all 16-bit addresses, and all short jumps (i.e., 8-bit
relative addresses in the jump instruction) must be wrapped in .code32
directives to avoid useless bloat by as(1).  This also fixes a few
problems that were preventing boot0 from compiling with the latest
and greatest version of as(1).
2000-05-05 13:22:10 +00:00
Paul Saab
90c25bd74a Remove the static heap. It is unknown why it was needed in the
beginning, but it no longer is required.  This has been tested with
many different revisions of the PXE rom from Intel.
2000-05-05 07:24:03 +00:00
Daniel C. Sobral
4eb5b7979d Make documentation on recently added heap? command reflect reality. 2000-05-04 22:51:21 +00:00
Daniel C. Sobral
a1d54dfc62 Add "heap?" to loader's man page. 2000-05-04 21:26:26 +00:00
Daniel C. Sobral
19c80876dc Further improve ordering. 2000-05-04 21:22:55 +00:00
Daniel C. Sobral
c45393b59c Sort entries in FreeBSD-specific FICL commands. 2000-05-04 21:18:26 +00:00
Doug White
55ebf88553 Add man page for pxeboot.
Reviewed By:	asmodai
2000-05-02 05:01:38 +00:00
Paul Saab
482cb52dcb Wrap the failure warnings around PXE_DEBUG in the cleanup routine.
It does not matter if they fail, so dont print anything about it
unless we are debugging.
2000-05-01 17:55:05 +00:00
Boris Popov
801e789e01 Update loader logic to distinguish modules vs. files.
Add support for module metadata. The old way of dependancy
handling will be supported for a while.

Reviewed by:	peter
2000-05-01 17:41:25 +00:00
Paul Saab
95394e643f Fall back to /pxeroot as the location of the NFS exported directory
if we are not given one by dhcp.
Remove extra includes while I am here.

Reminded by:	jlemon
2000-04-29 23:08:49 +00:00
Jonathan Lemon
8e30378f89 Teach the loader about the ext2fs filesystem, extended partitions, and
the new readdir function.
2000-04-29 20:49:33 +00:00
Paul Saab
f14ad6978f Make PXE do a dhcp request to find out where its files are. The
DHCP server is no longer required to also act as the NFS/TFTP
server.
2000-04-27 12:30:28 +00:00
Paul Saab
e7fd6f003e Don't report errors when we UDP_WRITE fails with a status of 1. 2000-04-27 03:23:50 +00:00
John Baldwin
eeb5db2946 Now that we are compiling PXE into libi386, we don't need ../libi386 in
.PATH anymore.
2000-04-26 19:54:49 +00:00
Paul Saab
d08ae64b1d Bring support in for Intel Wired for Management 1.1 (PXE 0.99 and
below).  This did not work previously because interrupts were
disabled when PXE calls were being made, and they must be enabled.
This should also allow us to be compliant with all newer PXE rom's
from Intel.

For PXE 0.99, this has been tested using the Intel N440BX motherboard
and I am confident it will work on the Intel L440GX motherboard.

Lots of help/information from: jhb, peter

I would like to thank Michael Johnston <michael.johnston@intel.com>,
Mike Henry <mike.henry@intel.com>, and all the other PXE developers
at Intel for their help, and information in helping solve this
problem.
2000-04-26 07:38:40 +00:00
John Baldwin
36273c5d79 Don't disable interrupts when calling a vm86 mode interrupt or routine
from user mode.  Don't disable interrupts when returning from vm86 mode
to user mode either.  Now, we only disable interrupts before calling a
hardware interrupt handler, which is the only time we _should_ be
disabling interrupts.

Because of this, err, feature, any routine that one called in vm86 mode
had to re-enable interrupts by setting the interrupt flag or interrupts
would remain disabled even after the routine returned.  For example, I
have a simple debugging routine that uses a vm86 mode function to dump
any arbitrary memory word that I use to read the BIOS timer or any other
memory location.  This function does 1 load instruction from memory and
then returns.  Since it didn't re-enable interrupts, the first time I
called it to read the BIOS timer, it disabled interrupts.   This also
affected the PXE bootstrap as it needs interrupts enabled while it is
processing.  This patch fixes both of those situations so that those
functions do not worry about having to enable interrupts.  Hardware
interrupt handlers worked fine with the old code because they always
enable interrupts as part of their routine.

If you have any problems with the loader after this commit, please
let me know.  I'd like to MFC it in a week or two since PXE support
needs it.

Noticed by:	ps, Michael Johnston <michael.johnston@intel.com>
2000-04-26 04:35:25 +00:00
Paul Saab
43e797fd31 Move the building of the PXE module into libi386. 2000-04-21 22:06:02 +00:00
Paul Saab
2339dc037f Make the loader a little smarter about when it is and is not allowed
to call PXE.
2000-04-21 04:58:51 +00:00
Paul Saab
5d5b2077f1 Don't call the PXE cleanup routine if PXE is not enabled. This
should fix the "Invalid partition table" error people were seeing.
2000-04-21 03:04:16 +00:00
Paul Saab
6450dd3cb4 Add a cleanup function. This is needed for PXE where you should
shutdown the UNDI and unload the stack.
2000-04-20 00:06:15 +00:00
Paul Saab
e938899cc3 Use !PXE api over PXENV+ api.
Magic trampoline by: peter (at 4am and after a good whipping at airhockey)
Do a better job of returning and detecting errors.
2000-04-19 11:22:38 +00:00
John Baldwin
2cb6d95d48 Add a missing dependency: boot2 depends on the BTX kernel. 2000-04-11 14:49:13 +00:00
Jordan K. Hubbard
4fbd258bcc Nuke duplicate struct declaration from somebody's paste-o 2000-04-08 22:50:18 +00:00
Paul Saab
d8af287caf Make PXE use the UDP API. This allows for both TFTP and NFS support.
You may specify TFTP or NFS via compile time options in the loader,
but not both at this time.

Also, remove a warning about not knowing how to boot from network
devices.  We can obviously do that now.
2000-04-08 01:22:14 +00:00
Paul Saab
dbe3e0f575 Add a missing PXE API call and structure. 2000-04-04 07:28:54 +00:00
Paul Saab
2efc827d19 Add all the PXE related structures from the 2.1 PXE spec from Intel.
Fix exsisting code to match the spec.
2000-04-04 00:38:59 +00:00
John Baldwin
48a0c4ea04 Mega i386 loader commit.
- Don't hard code 0x10000 as the entry point for the loader.  Instead add
  src/sys/boot/i386/Makefile.inc which defines a make variable with the
  entry point for the loader.  Move the loader's entry point up to
  0x20000, which makes PXE happy.
- Don't try to use cpp to parse btxldr for the optional BTXLDR_VERBOSE,
  instead use m4 to achieve this.  Also, add a BTXLDR_VERBOSE knob in the
  btxldr Makefile to turn this option on.
- Redo parts of cdldr's Makefile so that it now builds and installs cdboot
  instead of having i386/loader/Makefile do that.  Also, add in some more
  variables to make the pxeldr Makefile almost identical and thus to ease
  maintainability.
- Teach cdldr about the a.out format.  Cdldr now parsers the a.out header
  of the loader binary and relocates it based on that.  The entry point of
  the loader no longer has to be hardcoded into cdldr.  Also, the boot
  info table from mkisofs is no longer required to get a useful cdboot.
- Update the lsdev function for BIOS disks to parse other file systems
  (such as DOS FAT) that we currently support.  This is still buggy as
  it assumes that a floppy with a DOS boot sector actually has a MBR and
  parses it as such.  I'll be fixing this in the future.
- The biggie:  Add in support for booting off of PXE-enabled network
  adapters.  Currently, we use the TFTP API provided by the PXE BIOS.
  Eventually we will switch to using the low-level NIC driver thus
  allowing both TFTP and NFS to be used, but for now it's just TFTP.

Submitted by:	ps, alfred
Testing by:	Benno Rice <benno@netizen.com.au>
2000-03-28 01:19:53 +00:00
John Baldwin
7be31bb1b2 Remove some extra spammage that made it into this commit. This will be
revisited later with a better fix, or at least one that compiles. :)

Approved by:	dcs
2000-03-15 16:36:55 +00:00
Daniel C. Sobral
7b12e51659 Pass an unit number to bcache_strategy, so it can flush the cache when
necessary. Pass an absolute block number too, instead of receiving a
relative one in realstrategy(), as bcache_strategy() requires this.

The fix is sligthly different from the one in the PR.

PR:		17098
Submitted by:	John Hood <jhood@sitaranetworks.com>
2000-03-15 01:58:45 +00:00
John Baldwin
536fcb08bf This patch to BTX fixes several small things:
1) Fix a bug in the int15 function 87 emulation where we only copied half
   of what the BIOS asked for.  This caused the Mylex RAID adapter to go
   haywire and start trashing memory when you tried to boot from it.
2) Don't use interrupt 19 to reboot.  Instead, set the reboot flag to a warm
   boot and jump to the BIOS's reboot handler.  int 19 doesn't clear memory
   or restore the interrupt vector table, and thus really isn't safe.  For
   example, when booting off of PXE, the PXE BIOS eats up a chunk of memory
   for its internal data and structures.  Since we rebooted via int 19,
   using the 'reboot' command in the loader resulted in that memory not
   being reclaimed by the BIOS.  Thus, after a few PXE boots, the system
   was out of lower memory.
3) Catch any int 19 calls made by a BTX client or a user pressing
   Ctrl-Alt-Delete and shutdown BTX and reboot the machine cleanly.  This
   fixes Ctrl-Alt-Delete in the loader and in boot2 instead of presenting
   the user with a BTX fault.

Approved by:	jkh
Found by:	1) by msmith
2000-02-16 07:00:16 +00:00
Ruslan Ermilov
a6120246a2 Support the new ata(4) syntax, while providing backward compatibility for wd(4).
Reviewed by:	jkh, msmith, sos
Approved by:	jkh
2000-02-09 19:23:46 +00:00
Luigi Rizzo
2dea85d508 Add a NOFORTH variable so we can build a smaller loader without
Forth support, for use with PicoBSD

Approved-By: jordan
2000-02-04 20:57:09 +00:00
John Baldwin
4e60d653ce Fix bogon in previous commit. Re-enable Forth in the loader.
Noticed by:	dcs
Approved by:	jkh
2000-01-30 06:56:27 +00:00
John Baldwin
064b3244ec Allow for cdldr to be built in ${.OBJDIR}/../cdldr/cdldr instead of
only looking for it in ${.CURDIR}/../cdldr/cdldr.  This fixes world.
2000-01-28 15:19:22 +00:00
John Baldwin
c8bb85f758 Add the new cdldr CD bootstrap loader. This patch includes the following:
- Fix btxldr to preserve a NULL bootinfo pointer when it copies the kernel
  arguments.
- Add the cdldr bootstrap program.  This program is tacked onto the
  beginning of the standard 3rd stage boot loader (/boot/loader) to form
  the CD boot loader (/boot/cdboot).  When a CD is booted, the cdboot file
  is copied into memory instead and executed.  The cdldr stub emulates the
  environment normally provided by boot2 and then starts the loader.  This
  booting method does not emulate a floppy drive, but boots directly off of
  the CD.  This should fix the problems some BIOS's have with emulating a
  2.88 MB floppy image.
- Add support to the loader to recognize that it has been booted by cdldr
  instead of boot2 and use a simpler method of extracting the BIOS boot
  device.
2000-01-27 21:21:01 +00:00
John Baldwin
c299f41fd9 Fix brokenness introduced with the PAGING conditional variable. The value
of %cr0 wasn't reloaded into %eax before being modified to turn protected
mode off if PAGING was not defined.  The result was that the processor did
not exit protected mode, so when it tried to jump to segment 0x0 in the
next instruction to clear the prefetch cache like one should when leaving
protected mode, it actually tried to jump to a null selector, causing a
GPF.
2000-01-27 21:06:13 +00:00
Mike Smith
627249c7b1 Substantially revamp the way that we determine the amount of memory available
for our use.  Use the same search order for BIOS memory size functions
as the kernel will later use.

Allow the loader to use all of the detected physical memory (this will
greatly help people trying to load enormous memory disk images).

More correctly handle running out of memory when loading an object.

Use the end of base memory for the top of the heap, rather than
blindly hoping that there is 384k left.

Add copyrights to a couple of files I forgot.
1999-12-29 09:54:46 +00:00
Poul-Henning Kamp
7d5961670c Remove BAD144 support, it has already been disabled for some time. 1999-12-08 09:33:00 +00:00
Daniel C. Sobral
8a3f7b6ba9 Add machine-specific include path to ficl's sysdep.h. Wishes I had
gone to bed earlier.

Pointed by: peter
1999-11-23 16:30:48 +00:00
David E. O'Brien
c8e02dfe73 Add -fdata-sections, which is a new GCC 2.95 optimization. Remove
-fschedule-insns as it wasn't such a big win with 2.95 after all.

Add the *BIG* win "-mpreferred-stack-boundary=2" optimiztion submitted by
Dima.  GCC 2.95 ensures the stack frame is always properly [opitimally]
aligned by surrounding every function call by code simular to
"addl $-12, %esp" / "addl $12, %esp".  Here we need the reduction in space,
with speed not an issue.
1999-11-15 04:23:40 +00:00
David E. O'Brien
cd37fe517b Return this file to its pre-spammed version. Thanks to some new compiler
optimizations, we can go from 3 bytes free with the spammed version, to
279 bytes free with the full version.
1999-11-14 22:17:06 +00:00
David E. O'Brien
cf49270ac3 Enter complier upgrade mode again. We need to cut 169 bytes from this:
Remove some printf() calls, reduce size of buffers, and abbreviate
	some strings.

Hopefully the boot people will fix this spamage after the cut over to
Gcc 2.95.2 as the system compiler.
1999-11-14 00:41:54 +00:00
David E. O'Brien
73de3d0ff7 Turn on the -fforce-addr and -fschedule-insns optimizations. Adding
either one gives us an additional 32 bytes of additional space available
when using EGCS 1.1.2.  With GCC 2.95.2 -fforce-addr gives us 12 more bytes,
and adding -fschedule-insns gives us an additional 4 bytes.
1999-11-13 23:08:46 +00:00
John Baldwin
260c5d350e If PAGING is defined then actually turn it on when entering protected
mode.
1999-10-27 02:22:52 +00:00
Daniel C. Sobral
33ebc8c952 Make the "machine" target a prequisite to all source files.
Hinted-at by: bde
1999-10-19 03:53:59 +00:00
John Baldwin
228ace6ebf aThis patch updates the BTX to emulate the BIOS function "Copy Extended
Memory" called as function 0x87 of interrupt 0x15.  Since the Mylex RAID
adapter's BIOS used this function to access memory (actually PCI bus
space) beyond 16 MB, this patch also allows BTX to address all 4 Gig of
possible address space on i386+.  Since the loader does not have room for
4 MB of page tables, this was done by turning off paging.

Paging was turned off via a compile time setting which defaults to off.
To enable paging, simply define the make variable PAGING.

rnordier might want to clean this up later.

Submitted by:	W. Gerald Hicks <wghicks@bellsouth.net>,
		Bosko Milekic <bmilekic@ares.dsuper.net>
Reviewed by:	msmith
Required by:	Mylex RAID adapter's BIOS
1999-10-12 21:33:49 +00:00
Brian Somers
ad128796fd Blank out the twiddly thing when outputting the ``BTX loader'' message. 1999-10-12 06:57:26 +00:00
Julian Elischer
d721abf23c Remove accidental cut&paste garbage in a comment. 1999-09-03 01:38:29 +00:00
Julian Elischer
14c457c23f Comment the boot manager. So I don't have to work it all out again :-)
Reviewed by:	rnordier@freebsd.org
1999-09-03 01:35:06 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Nik Clayton
51e09cd72a Fix some typos.
PR:             docs/11955
Submitted by:   Christian Weisgerber <naddy@mips.rhein-neckar.de>
1999-07-28 20:30:59 +00:00
Robert Nordier
fad2f0e686 Recognise NetBSD slices.
Submitted by : Lars Koeller <lkoeller@cc.fh-lippe.de>
PR           : 12772
1999-07-24 17:40:40 +00:00
Mike Smith
73332890ea Walk around the end of all the silly guessing of device types and unit
numbers that we have been doing in the past, and read /etc/fstab off the
proposed root filesystem to determine the actual device name and vfs
type for the root filesystem.  These are then exported to the kernel
via the environment variable vfs.root.mountfrom.
1999-07-21 00:08:54 +00:00
Robert Nordier
50d57a133e Reintroduce LBA (cyl > 1023) support in the bootblocks, enabled by
means of a build option.
1999-07-20 01:19:23 +00:00
Robert Nordier
ac176e5590 Activate kgzldr. 1999-07-19 20:16:34 +00:00
Robert Nordier
b407f553fb Use M4FLAGS for m4. 1999-07-19 20:10:17 +00:00
Robert Nordier
ba8860241d kgzldr is a kzipboot replacement for use with kgzip(8).
Development sponsored by Global Technology Associates, Inc.

Reviewed/tested by: abial
1999-07-19 18:07:44 +00:00
Peter Wemm
5110b634b0 Reconcile all the loader newvers.sh's into one common one. 1999-06-29 21:23:26 +00:00
Ruslan Ermilov
d41ebb5068 -mdoc fix. 1999-06-23 09:06:18 +00:00
Robert Nordier
f841485278 Fill in bi_bios_geom[] in the bootinfo structure passed to the kernel.
This should resolve the problem raised in PR 12315, and incidentally
makes it easier to determine what geometry the BIOS is actually using
(by way of boot -v and dmesg).
1999-06-21 18:27:02 +00:00
Robert Nordier
fc2ff140c2 Provide for enabling/disabling each slice individually. 1999-06-19 21:40:55 +00:00
Robert Nordier
bc53095dd4 Fix use of e_phoff in place of e_phnum. 1999-06-19 20:50:38 +00:00
Robert Nordier
68aadbb9c9 Correct and clarify some comments. 1999-06-19 20:40:32 +00:00
Robert Nordier
97a62e386d Change active flag handling; sanity check passed drive number; pass
partition pointer to bootstrap; optimise away 10 bytes; cosmetics.
1999-06-18 21:49:18 +00:00
Guy Helmer
3d8993c197 Modify the boot loader to recognize the -C flag and pass the RB_CDROM
flag to the kernel to mount a CDROM as the root filesystem.  Alternatively,
the boot_cdrom env var can be set.

As Mike Smith noted, "-C is the "wrong" way to do this", but this is
an acceptable stopgap in lieu of a better way.

PR:		bin/11884
Reviewed by:	msmith@freebsd.org
1999-06-04 03:18:28 +00:00
Robert Nordier
c9091105f3 Activate mbr. 1999-05-24 22:44:32 +00:00
Robert Nordier
9292eec80d Add mbr: a standard master boot record intended to replace a couple
that are presently embedded in the fdisk and sysinstall code.
1999-05-24 22:36:24 +00:00
Robert Nordier
32ea10b4fc Fix a reference to the mysterious Mike Smisth. 1999-05-22 13:18:28 +00:00
Robert Nordier
e2c9098e4f Drop some non-existent commented-out targets. 1999-05-18 22:10:05 +00:00
John Birrell
957055c6a9 Found the needle in the haystack!
Use colons instead of semi-colons in the default init_path to behave like
UNIX instead of DOS.

Suggested by: bde
Reminded by: des (with no hint as to *which* man page).
1999-05-11 11:20:13 +00:00
Joseph Koshy
e539c67bbb Correct typos.
PR:		docs/11445
Submitted by:	Kazuo Horikawa <horikawa@jp.freebsd.org>
1999-05-03 08:32:45 +00:00
Daniel C. Sobral
4093b9aa2e Make man page reflect reality on parsing rules. Now I know Jordan
never read this man page... :-)
1999-04-25 21:41:09 +00:00
Daniel C. Sobral
cf69fad236 Move loader.conf.5, while it is still in it's first revision. 1999-04-24 17:49:47 +00:00
Daniel C. Sobral
2de24e689e Add loader.4th man page (worst man page I ever wrote -- reviews
are welcomed). Correct a nasty bug in loader.4th before anyone
notices, add a couple of features.
1999-04-24 17:25:35 +00:00
Dag-Erling Smørgrav
5f967b24fc Make the location of init(8) tunable at boot time. 1999-04-20 21:15:13 +00:00
Daniel C. Sobral
5d9a0e5b26 Installs a default loader.rc if none exists. Document loader.conf. 1999-04-18 09:21:12 +00:00
Robert Nordier
0e5731f9f4 Fix damage introduced in previous commit. 1999-04-05 07:36:30 +00:00
Robert Nordier
bf0eae60c5 Optimize better for space.
Thanks to: jdp
1999-04-05 07:24:51 +00:00
David E. O'Brien
df5ee53868 Remove the string ">>> FreeBSD/i386 BOOT". I need to reduce the size of
boot2 by 16 bytes.  I expect this to be temperary until the boot2 authors
can do the proper fix.
1999-04-04 21:15:41 +00:00
Joerg Wunsch
9859e703f6 Make <DEL> an alternative rubout character for command input; many
serial terminals use this as their default rubout key.
1999-03-31 08:28:42 +00:00
Daniel C. Sobral
76bd51f729 Avoid copying m_args if none exists. (Perhaps this is a better solution,
Doug?)
1999-03-18 14:36:22 +00:00
Daniel C. Sobral
276dcca185 Version bump: kvm & dictionary size. 1999-03-17 23:05:46 +00:00
Daniel C. Sobral
306a07af57 The man page, version 0.1. 1999-03-15 08:52:23 +00:00
Daniel C. Sobral
f847f7558c Install new loader.rc stuff. 1999-03-10 03:34:14 +00:00
Daniel C. Sobral
445a035707 Add MODINFO_ARGS, parameters passed to a module at load time.
VS: ----------------------------------------------------------------------
1999-03-08 11:05:52 +00:00
Robert Nordier
a3c69bbcf8 Save option, rather than slice, selected. This permits unattended
booting from other than drive 0, as the F5 keypress is saved and
"replayed."

Requested (some time ago) by: archie
1999-03-01 02:42:47 +00:00
Robert Nordier
5052aa25a1 Implement "setdrv" option 1999-02-26 14:51:14 +00:00
Robert Nordier
401d37631a Emulate a V86 "movl %cr0,%eax" instruction.
Feedback and testing: Kurt Hopfensperger <kjhmdjd@ix.netcom.com>
1999-02-25 16:27:41 +00:00
Mike Smith
bf18286593 Don't try protecting page 0; it seems that BIOS writers now feel it's
appropriate to check for Windows95 by polling for state in low
memory, with fatal results.

Submitted by:	rnordier@freebsd.org
1999-02-24 01:37:23 +00:00
Daniel C. Sobral
b9305c6c70 Bumb up loader's version.
Reviewed by:	Michael Smith <msmith@freebsd.org>
1999-02-08 04:14:31 +00:00
Robert Nordier
391911b768 Check size of partition before using it. 1999-01-29 03:36:42 +00:00
Robert Nordier
ab19eb8230 Fix a couple of further bugs: missing argument to sprintf() and
"==" used for "=".
1999-01-25 23:07:02 +00:00
Mike Smith
84ef5a8f66 Bleh. Missing 'unit =' doesn't help legacy num_ide_disks code.
PR:		bin/9651
Submitted by:	"Daniel C. Sobral" <dcs@newsguy.com>
1999-01-24 06:03:44 +00:00
Mike Smith
1c2587457f Document root_disk_unit 1999-01-24 00:12:17 +00:00
Mike Smith
c679ae39a8 biosdisk.c
Implement a new variable 'root_disk_unit' which supersedes
	'num_ide_disks' and makes it possible to explicitly set the
	root device unit number regardless of type considerations.

bootinfo.c
	If we can't calculate a dev_t for the root disk, complain and
	don't proceed to boot with an invalid boot device.
1999-01-24 00:12:04 +00:00
Mike Smith
5d3d992565 Fill in the bi_bios_dev field in the bootinfo struct; the loader doesn't
guess this value well in anything other than the simplest of situations.
1999-01-24 00:10:10 +00:00
Robert Nordier
d0a4f5ea63 Fix read error not being detected. 1999-01-22 18:32:52 +00:00
Robert Nordier
d7478bf0df Push version numbers up to 1.00. This is just intended to reflect
that the BTX code can be regarded as stable: there are no associated
code changes.

Suggested by: obrien
1999-01-22 13:07:17 +00:00
Mike Smith
378972ac6b Transition from using Perl to using awk for our text-manipulation
needs.  This removes the dependancy on Perl for the generation of the
loader, allowing the world to be built on a perl-free system.

Submitted by:	Joe Abley <jabley@clear.co.nz>
1999-01-18 19:05:27 +00:00
Robert Nordier
05c7fdda18 In the event of a disk error, boot2 is expecting an error
code to be returned: give it one
1999-01-13 23:30:07 +00:00
Robert Nordier
726c0943c0 Drop boot.help support. 1999-01-11 11:36:03 +00:00
Mike Smith
ba536e2ae8 Preserve the previous loader as loader.old.
Note no matching commit for the Alpha, as the alpha boot0 stage does
not have the ability to prompt for user input.

PR:		kern/9406
Submitted by:	 "Daniel C. Sobral" <dcs@newsguy.com>
1999-01-11 05:52:28 +00:00
Mike Smith
f414995e5c Disable kzipping the loader; it seems to be breaking the aout-to-elf build 1999-01-10 20:20:27 +00:00
Steve Price
24d156f499 Remove redundant line of code.
PR:		9364
Submitted by:	Daniel C. Sobral <dcs@newsguy.com>
1999-01-10 18:22:23 +00:00
Robert Nordier
c03fa7f977 Use etc/make.conf settings for serial port and speed.
Submitted by: rvb
Reviewed by: bde
1999-01-10 14:48:05 +00:00
Peter Wemm
c03b24b2d8 Damn, I thought I had committed this already, but it seems not.
Move the relocated boot1 and arg transfer space from 0x600/0x800 to
0x700/0x900.  In theory this should make no difference, apart from the fact
that Buslogic controllers happen to use a few bytes at 0x600 for some sort
of scratch space for it's int 0x13 hook (!!!), causing the machine to crash
badly when the boot2 code makes it's callbacks into boot1 for disk IO.

Submitted by:	Robert Nordier <rnordier@freebsd.org>
1999-01-10 13:29:52 +00:00
Mike Smith
244cf84b1e Explicitly look for kzip in /usr/bin, again this is a stopgap, to avoid
making kzip a build tool.
1999-01-09 20:14:46 +00:00
Mike Smith
82bbbb8c73 kzip the loader, this shrinks it to about 60% of its original size.
Note that this is a stopgap with dependancies on the a.out tools.
1999-01-09 02:38:40 +00:00
Mike Smith
ee5799c4ee Extend bd_print() so that it displays slices and partitions on disks. 1999-01-09 02:36:19 +00:00
Peter Wemm
e423230b0d Fix a potential sign extension bug on 8-bit chars.
Outputting a backspace isn't supposed to be destructive..  It isn't on
most terminals, nor on the standard bios output (vs. TERM_EMU mode)
1999-01-04 18:45:08 +00:00
Mike Smith
170aadf69a Restore dependancy to build loader.help here 1999-01-04 01:28:46 +00:00
Mike Smith
5dfcac87f7 Reenable generation of the loader.help file 1999-01-03 20:50:35 +00:00
Andrzej Bialecki
de37e4a6d2 Add back ability to make beeps when using new TERM_EMU.
Submitted by:	W Gerald Hicks <wghicks@bellsouth.net>
1998-12-31 13:44:04 +00:00
Andrzej Bialecki
cf9443f92b Add simple terminal emulator, compatible with cons25. Currently supported
capabilities are: AF, AB, cm, ho, me, cd. The code is hidden behind
-DTERM_EMU - should it cause any problems, you can remove this define
to get back the old behaviour.

You'll find some examples how to use it in src/share/examples/bootforth.

Reviewed by:	jkh
1998-12-22 11:51:25 +00:00
Mike Smith
c2e3e002f6 Disable build/install of boot.help until we sort out how to construct it
in the makeworld environment.
1998-12-16 02:27:15 +00:00
Mike Smith
8719fada36 Reformat help to improve subtopic display appearance, other minor
cleaning.  The 'help' command in the loader should now be usable and
hopefully informative.
1998-12-15 14:32:17 +00:00
Mike Smith
aa203600d5 Build the composite help file from the generic and architecture-specific
help files, sorting topics and subtopics to allow maximum flexibility.
1998-12-15 14:21:30 +00:00
Andrey A. Chernov
722135c358 unlocalize date
Submitted by: Cejka Rudolf <cejkar@dcse.fee.vutbr.cz>
1998-12-07 16:17:41 +00:00
Robert Nordier
b956ca7ca4 Revise some comments and labels. 1998-12-05 11:58:33 +00:00
Robert Nordier
12c38b04f1 Drop EDD support detection, though retain configurable use of disk
packet interface.  Add booteasy-style F5 support.  Add no-update
option. Implement various space optimizations and consistency fixes.
1998-11-29 14:09:00 +00:00
Robert Nordier
5103ed619b Drop use of BIOS int 0x14 services in favor of direct port I/O.
Feedback and testing: Adrian Filipi-Martin <adrian@ubergeeks.com>
1998-11-22 07:59:16 +00:00
Mike Smith
8f0a6b5b8c Add a new variable $num_ide_disks which is used to offset the unit number
for SCSI disks when converting from BIOS unit numbers to da unit numbers.

Prompted by Kevin Street <street@iname.com>
1998-11-13 23:40:02 +00:00
Jordan K. Hubbard
207fe43d59 bootforth seems to be working well enough for me and others to turn
on by default.  If it causes trouble, it's very easy to switch off again.
1998-11-12 07:40:51 +00:00
Robert Nordier
21ffb6774a Revise error messages. 1998-11-11 08:56:17 +00:00
Robert Nordier
0293eac42c Prevent boot.config being parsed more than once. 1998-11-08 18:37:28 +00:00
Robert Nordier
7ac90f7d65 Drop the familiar 'text=xxxx data=xxxx bss=xxxx ...' display while
loading.  This eliminates noise when loading boot/loader; and when
loading a kernel, they generally flash by too fast to be
intelligible anyway.
1998-11-08 18:29:29 +00:00
Robert Nordier
9888bdcd29 boot1: Eliminate EDD detection and optional use of disk packet
interface.  Do some general consistency fixes and space optimizations.
Use of some freed-up space to defend against possible BIOS misfeatures.

boot2: Revise disk read interface to provide for boot1 changes.  Free
up space for this.
1998-11-08 15:36:35 +00:00
Robert Nordier
548bf5dd17 Make use of BIOS int 0x13 extensions configurable, and disabled
by default.
1998-11-05 20:52:25 +00:00
Mike Smith
95bd40d634 Turn off -g accidentally left in from testing. 1998-11-04 03:42:36 +00:00
Jordan K. Hubbard
12b2c0d82e Respect ${.OBJDIR} properly when looking for libficl.a 1998-11-04 02:36:18 +00:00
Mike Smith
48fe834fda Add required parts for BootForth building (currently disabled and
untested).  Only suitable for i386 at the moment, as we are missing
setjmp/longjmp on the Alpha.
1998-11-04 00:30:47 +00:00
Mike Smith
af1f6e0673 Implement a simple LRU block cache. By default this is initialised to 16k,
and will bypass transfers for more than 8k.  Blocks are invalidated after
2 seconds, so removable media should not confuse the cache.

The 8k threshold is a compromise; all UFS transfers performed by
libstand are 8k or less, so large file reads thrash the cache.
However many filesystem metadata operations are also performed using
8k blocks, so using a lower threshold gives poor performance.

Those of you with an eye for cache algorithms are welcome to tell me
how badly this one sucks; you can start with the 'bcachestats' command
which will print the contents of the cache and access statistics.
1998-11-02 23:28:11 +00:00
Robert Nordier
3d04f230e5 Revise a few comments. 1998-11-02 17:53:08 +00:00
Robert Nordier
3b1bd5ae35 Ignore, rather than emulate, an i386 'hlt' instruction (though for
most practical purposes, this should be indistinguishable from a
more strictly correct approach).

Feedback and testing: msmith
1998-11-01 13:52:52 +00:00
Mike Smith
dc8be6a8f5 - Add a new command 'lsdev' to list devices which might be likely to host
filesystems.
 - New 'help' command and data in the help.* files (not yet installed),
   provides topic and subtopic help, indexes, etc.
 - Don't crash if the user tries to set an invalid console.  Be helpful
   instead.
 - Expand tabs (badly) on the i386 video console.
 - Some minor cosmetic changes.
1998-10-31 02:53:12 +00:00
Luoqi Chen
36159e3d1e Fix an uninitialized variable in the `dangerously dedicated disk' case. 1998-10-30 07:15:52 +00:00
Mike Smith
4c1a7a5a8f Make the BTX loader much more quiet about what it's doing. This removes
most of the "what the (*^&%(*^ was that?" stuff that normally flies by.
1998-10-30 00:11:35 +00:00
Mike Smith
8879e57b3e Simplify the "is a character ready" test, so that we don't return a false
negative for keypresses with zero ascii values.  This is in line with the
comconsole test, rather than being more ambitious.

Submitted by:	rnordier
1998-10-28 19:24:15 +00:00
Robert Nordier
9244e1a412 Avoid interruptions while talking to keyboard controller. 1998-10-27 20:19:24 +00:00
Robert Nordier
c589107988 biosboot compatibility fix: change behavior of backspace in getstr().
Noticed by: abial

Optimize away a few bytes to make space for the above.
1998-10-27 20:16:36 +00:00
Mike Smith
0cae710c49 Clean the ${BASE}.sym file as well. 1998-10-23 22:32:27 +00:00
Mike Smith
4558ccdf6f Remove a debugging copy of offsetof() that snuck in. 1998-10-23 22:30:52 +00:00
Mike Smith
c93cd32637 Enable the PCI BIOS PnP enumerator. 1998-10-23 22:29:19 +00:00
Mike Smith
a1c0b1c5c5 PnP enumerator using the PCI BIOS. This is needlessly complex due to the
lack of a simple "enumerate all PCI devices" function.
1998-10-23 22:29:08 +00:00
Mike Smith
8d35fb65a0 PnP BIOS enumerator; mostly useful for hunting PnP devices that are supported
by the system BIOS rather than supporting ISA PnP.
1998-10-22 20:25:06 +00:00
Mike Smith
051837da04 Add a dependancy on the BTX crt0 object
Add the biospnp handler to the pnp handler array
Drop some old debugging code
1998-10-22 20:23:58 +00:00
Mike Smith
13aedae3d7 Add biospnp.c 1998-10-22 20:23:15 +00:00
Mike Smith
f41c619d3d Pop the return address off the stack before making a V86_CALLF call;
this allows us to implement what look like C function calls from user
space "directly" to v86 mode code.  (Used for calling the PnP BIOS)
1998-10-22 20:22:07 +00:00
Mike Smith
b259863db2 Bye-bye setdefs. 1998-10-21 20:11:03 +00:00
Mike Smith
d8ef941c2f - Enable PnP and ISA PnP code.
- Use the ISA PnP enumerator.
 - Use the new linker set code, throw out the gensetdefs stuff.
 - Produce an intermediate loader image that has symbols stripped, to aid
 - in debugging.
 - Supply ISA port access functions required for ISA PnP
1998-10-21 20:10:33 +00:00
Mike Smith
c90625d230 Don't depend on being part of the kernel tree. If we are, use the kernel's
<machine> includes rather than the system's.
1998-10-21 20:07:57 +00:00
Robert Nordier
1a8efde980 Make serial port, data format, and bps configurable. 1998-10-20 20:20:48 +00:00
Robert Nordier
4e108bf052 Make configurable (a) whether to use int 0x13 extensions; (b) timeout
value.  Ignore failure to update mbr sector.  Disable interrupts while
using extended registers.  Default to F1 not F2.
1998-10-19 19:13:53 +00:00
Robert Nordier
f59f5db544 Set BINMODE to 444. 1998-10-17 14:20:25 +00:00
Robert Nordier
ae99ddc79e Fix some glitches in the input routine:
Don't display a \b if not acting on it.
Don't process binary zero chars (which result from pressing function
keys, etc. on the PC).
1998-10-17 11:25:05 +00:00
Robert Nordier
918ddbed16 Having probed the keyboard, turn off the -P flag. 1998-10-17 10:35:15 +00:00
Robert Nordier
93d51dcaf9 Treat all options as toggles (ie. -c -c is the same no -c). Since
the boot.config settings are persistent, this seems to provide a
useful override capability, and should break only on broken
boot.config's.

Output a cosmetic newline if booting with no input.
1998-10-17 09:50:09 +00:00
Robert Nordier
3044a22097 biosboot compatibility fix:
If we have a boot.config command, display it.
1998-10-17 09:16:01 +00:00
Robert Nordier
7fa25d805a biosboot compatibility fix:
Read boot.help before parsing boot.config.  We were parsing
boot.config first, which could result in boot.help being read
from a different location (or not found), which would probably
just cause surprise, without being useful.
1998-10-17 09:01:13 +00:00
Robert Nordier
67ac585edf Fix path to sio.s 1998-10-15 22:08:13 +00:00
Robert Nordier
da55c91100 Add serial, dual, and probe-keyboard support. 1998-10-15 20:04:21 +00:00
Peter Wemm
f03d6f87b3 Get the last used address via a more conservative method, don't depend
on the module chain being in increasing address order.
1998-10-15 17:06:36 +00:00
Robert Nordier
898adc1c96 Activate boot2. 1998-10-14 20:40:56 +00:00
Peter Wemm
eb9022e791 Try and get the sys/* and machine/* includes via relative paths. This
saves having to do a 'make includes' after touching any header file for
the boot code.
1998-10-14 07:08:16 +00:00
Peter Wemm
2a26e9ea83 Align to sizeof(long) rather than sizeof(int32_t). It needs to be
long because this code is shared with the alpha.  I hope the alpha can
read 32 bit ints at 32 bit alignment (vs. 64 bit alignment).
1998-10-14 05:07:23 +00:00
Robert Nordier
ee2e4f9b32 Fix btx include path. 1998-10-14 01:53:56 +00:00
Robert Nordier
59ea046e5d Include <bsd.prog.mk>. Add install target (to /boot for now). 1998-10-14 00:24:16 +00:00
Robert Nordier
757ee5cca9 Fix flow of control after directory listing; enable EDD support;
cosmetics.
1998-10-13 23:43:38 +00:00
Robert Nordier
b2848194f5 Make v86.ctl default more explicit; simplify read error-handling;
twiddle.
1998-10-13 23:00:47 +00:00
Robert Nordier
c71b9b3c24 Adjust NDEV value.
Optimize reading of system time.
1998-10-13 22:17:05 +00:00
Robert Nordier
fd4afc6487 Change to a 15-sector boot2.
Refine slice-handling.
1998-10-13 21:35:42 +00:00
Robert Nordier
8f65b6a695 Don't use an absolute path to objcopy.
Noticed by: Scott Mace <smace@intt.org>
1998-10-13 18:29:18 +00:00
Robert Nordier
0ad50c1c9d Improve drive recognition and handling. 1998-10-13 17:41:06 +00:00
Robert Nordier
4d8eda2252 New boot blocks: support for /boot/loader; a.out & ELF; cyl > 1023;
multiple 0xa5 slices; etc.
1998-10-12 21:16:26 +00:00
Robert Nordier
dfce019974 Drop .MAKEFLAGS: hack. 1998-10-12 02:05:44 +00:00
Robert Nordier
7870a52598 Do without head and tail: they're pretty unnecessary here anyway. 1998-10-12 01:44:15 +00:00
Robert Nordier
36e85d353d Use rather than for linking. This allows the new rather
than stale version of libstand.a to be found.

After this change, the new boot code is apparently building correctly
in a make world.
1998-10-12 01:03:00 +00:00
Robert Nordier
1339399694 Override for ELF. 1998-10-11 12:59:40 +00:00
Robert Nordier
10806461a7 Override for ELF. Override .s.o suffix rule. 1998-10-11 11:27:48 +00:00
Peter Wemm
7532a55a62 Fix a warning that's been bugging me for ages. 1998-10-11 10:29:49 +00:00
Peter Wemm
7d9cbdec8f Only call vidc_init() once (unless forced).
Cosmetic change to the init-time character eater (like, make it increment
the index counter - if there's a problem, it would sit there in an infinite
loop instead of only running 10 times).
1998-10-11 10:07:52 +00:00
Peter Wemm
a1c1935fa8 Fix comconsole mode. The int 0x14 read and status commands were reversed.
Also, make sure we set %dx each time around otherwise the commands
suddenly start trying to work on things like com92 instead of com1.
Make sure comc_init() is only run once.
Cosmetic change to init-time character eater.
1998-10-11 10:05:13 +00:00
Peter Wemm
1206a4f594 Warn that one of the DEBUG statements has a v86 recursion bug. 1998-10-11 10:01:55 +00:00
Peter Wemm
00fe329527 Fix comment to match code 1998-10-11 09:53:30 +00:00
Robert Nordier
0def18d819 Fix a typo.
Output another newline before invoking bootstrap.
1998-10-10 14:03:03 +00:00
Robert Nordier
91284f875f Turn off the new /sys/boot stuff (except boot0) unless OBJFORMAT
is elf.  (The BTX client must be ELF, though it is packaged as a.out
for compatibility.)
1998-10-09 23:30:16 +00:00
Peter Wemm
7deb2dabef Attempt to at least align MODINFO_* blocks. IMHO, decoding this stuff
should be MD code since one day we'll have to recover pages from deleted
preload data.  MI code can't be expected to know how to deal with pmap
internals, assuming it gets done via pmap that is. :-)
1998-10-09 23:24:55 +00:00
Peter Wemm
1d59e49683 Turn symbol table info passing back on, although it's probably not
particularly useful in this form.  KLD can deal with it much better.
setenv kernelname moved earlier.
1998-10-09 23:22:30 +00:00
Peter Wemm
f62f10b275 Remove kernelname setenv, the common code does it.
Use the metadata for symtab pointers, mainly to keep it common with
elf_freebsd.c.
1998-10-09 23:20:47 +00:00
Robert Nordier
4025ae9d2a Get this building as a.out or ELF.
With thanks to: jdp
1998-10-09 17:19:51 +00:00
Mike Smith
cab57be9ae Remove some debugging code.
Do a much better job of DWIM with partial device specifications.
Fix the module metadata build process, which was completely broken.
Use a larger read buffer when copying large objects in; this
improves performance marginally and will avoid flushning any small caches
we might choose to implement.
1998-10-09 07:11:19 +00:00
Peter Wemm
e3de88f4ff Fix that pesky boot aguments parsing bug. (I think :-) 1998-10-07 10:55:46 +00:00
Mike Smith
ee4f7b62a0 Request the flags back when checking for keyboard status.
Submitted by:	rnordier
1998-10-07 07:34:31 +00:00
Mike Smith
0bab8c3243 Enable the DOS filesystem. NOTE: you will have to rebuild libstand in
order to be able to build again.
1998-10-07 02:39:32 +00:00
Mike Smith
0f7d15efd8 - Drain the keyboard buffer when initialising.
- Be pedantic about the return from int 16 fn 01.
1998-10-07 02:39:06 +00:00
Mike Smith
afcd516b82 bootinfo.c
Strip any device name information from the kernel name
	before passing it in.

biosdisk.c
	Be more strict about matching device names to slice entries.
	Only allow unsliced syntax on unsliced disks.
1998-10-06 07:27:05 +00:00
Robert Nordier
b7b32c2745 Fix for "get base memory" bug found and mostly fixed by Mike. 1998-10-06 07:15:35 +00:00
Mike Smith
024e2ede72 The BIOS memory size is only a word. Some BIOSsen have garbage in the other
16 bits we were reading here, causing loss of arguments.
1998-10-06 06:13:36 +00:00
Mike Smith
58d4e8e80f Build boot0 as well. 1998-10-06 06:12:55 +00:00
Robert Nordier
09c7ea1cc8 Install in /boot. 1998-10-05 19:20:36 +00:00