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History log of /src/usr.sbin/installboot/Makefile
RevisionDateAuthorComments
 1.61  05-Oct-2025  thorpej Add riscv.
 1.60  22-May-2024  tsutsui Remove no-op emips stuff.

It seems blindly copied and modified from pmax, but emips bootloader
can be specified by "Ml40x_2ace.plx" config file on the Giano simulator.
(not sure what on the real Xilinx ML401 board, but maybe hardcoded)
 1.59  19-May-2024  tsutsui Add cd9660 support to search a bootloader file in the target file system.

Also add CD boot support for hp300, using a bootloader file in cd9660 fs.
This is a tool's part to close PR/54455.

HP 9000/300 machines read LIF directory entry allocated after
the LIF volume header at the top of the boot disk during bootstrap,
and a bootstrap file must be contiguously allocated on the disk
due to limitation of the LIF specification.

Current NetBSD/hp300's bootloader is larger than ~80KB so we have
to prepare a special 'boot' partition for FFS (that has only 8KB (ffsv1)
or 32KB (ffsv2) spaces) disks to put such a large bootloader.

On the other hand, on ISO9660 fs all files are allocated contiguously
so we can specify a bootloader file in the target ISO9660 directly
in the LIF directory entry.

Note we can simply use the existing "append" option to create bootable
CD ISO for hp300, but it looks some emulators (at leaset MAME) reject
such non-standard ISO files, i.e. with an appended bootloader file at
the end of the image.
 1.58  03-Jun-2023  lukem adapt to ${CC_WNO_ADDRESS_OF_PACKED_MEMBER}

Simplify CWARNFLAGS to use ${CC_WNO_ADDRESS_OF_PACKED_MEMBER}
which works for both clang and gcc, and remove compiler-specific
equivalents.
 1.57  03-Jun-2023  lukem bsd.own.mk: rename to CC_WNO_ADDRESS_OF_PACKED_MEMBER

Provide a single variable
CC_WNO_ADDRESS_OF_PACKED_MEMBER
with options for both clang and gcc, to replace
CLANG_NO_ADDR_OF_PACKED_MEMBER
CC_NO_ADDR_OF_PACKED_MEMBER
GCC_NO_ADDR_OF_PACKED_MEMBER

Using the convention CC_compilerflag, where compilerflag
is based on the full compiler flag name.
 1.56  06-Sep-2020  mrg branches: 1.56.6;
add support for new GCC 9 warnings that may be too much to fix
right now. new address-of-packed-member and format-overflow
warnings have new GCC_NO_ADDR_OF_PACKED_MEMBER amd
GCC_NO_FORMAT_OVERFLOW variables to remove these warnings.

apply to a bunch of the tree. mostly, these are real bugs that
should be fixed, but in many cases, only by removing the 'packed'
attribute from some structure that doesn't really need it. (i
looked at many different ones, and while perhaps 60-80% were
already properly aligned, it wasn't clear to me that the uses
were always coming from sane data vs network alignment, so it
doesn't seem safe to remove packed without careful research for
each affect struct.) clang already warned (and was not erroring)
for many of these cases, but gcc picked up dozens more.
 1.55  21-Jun-2020  thorpej Add evbmips support for u-boot handling.
 1.54  15-Aug-2019  martin Never trust a compiler that predefines i386 as 1 - do the symbol name
concatenation at the make level instead.
 1.53  15-Aug-2019  martin Replace black voodo linker magic (sometimes failing) with some
makefile + macro magic to trim the list of available machines on size
restricted install media.
 1.52  07-May-2019  thorpej branches: 1.52.2;
Add installboot(8) support for evbarm (and, in the future, other evb*)
boards that use u-boot. A known board database lists boards and their
respective u-boot packages. u-boot packages are discovered at run-time
(in /usr/pkg/share/u-boot, by default). These packages contain board
database overlays that describe u-boot installation procedure that's
specific for that board.

Support this as a native tool and as a host tool. The native tool
will attempt to determine the running board type using OpenFirmware
calls. Host tool and native tool alike may also specify a board type
directly using the "-o board=xxx option" or have installboot(8) determine
the board type from a device tree blob using "-o dtb=/path/to/board.dtb".
A "-o media=xxx" option is provided for boards that have different u-boot
binaries and/or installation procedures for different media types (e.g.
SDMMC, eMMC, or USB).

This is trivial to extend to other evb* platforms that use u-boot, even if
they don't use FDT for autoconfiguration.
 1.51  11-Jan-2017  joerg branches: 1.51.6; 1.51.14;
Disable a couple of warnings until further investigation.
 1.50  06-Jun-2015  joerg branches: 1.50.2;
Linking against libutil is not appropiate for tools.
 1.49  05-Jun-2015  mlelstv Support wedge names.
 1.48  24-Feb-2014  skrll branches: 1.48.4;
Rename NetBSD/hp700 to NetBSD/hppa.

Unfortunately our VCS isn't very helpful here.
 1.47  10-Aug-2012  joerg branches: 1.47.2;
Remove many HAVE_GCC || HAVE_PCC conditionals as the options also apply
to Clang. Add a few cases of HAVE_LLVM for -fno-strict-aliasing.
 1.46  14-Aug-2011  christos branches: 1.46.2;
fix various gcc-4.5 warnings
 1.45  22-Jun-2011  mrg apply some -Wno-error and/or -fno-strict-aliasing.


all of this should be looked at closer, but some of them are not
very trivial.
 1.44  20-Jun-2011  mrg remove most of the remaining HAVE_GCC tests that are always true in
the modern world.
 1.43  26-Jan-2011  pooka branches: 1.43.2;
Add support for the Extensible MIPS ("eMIPS") platform. The
NetBSD/emips port runs on Xilinx and Beecube FPGA systems and the
Giano system simulator.

eMIPS is a platform developed at Microsoft Research for researching
reconfigurable computing. eMIPS allows dynamic loading and scheduling
of application-specific circuits for the purpose of accelerating
computations based on the current workload.

NetBSD eMIPS support for NetBSD 4.x was written at Microsoft Research
by Alessandro Forin and Neil Pittman. Microsoft Corporation has
donated full copyright to The NetBSD Foundation.

Platform support for eMIPS is the first part of Microsoft's
contribution. The second part includes the hardware accelerator
framework and will be proposed on tech-kern soon.
 1.42  22-Apr-2009  lukem branches: 1.42.2;
Enable WARNS=4 by default, except for:
cpuctl dumplfs hprop ipf iprop-log kadmin kcm kdc kdigest
kimpersonate kstash ktutil makefs ndbootd ntp pppd quot
racoon racoonctl rtadvd sntp sup tcpdchk tcpdmatch tcpdump
traceroute traceroute6 user veriexecgen wsmoused zic
(Mostly third-party applications)
 1.41  05-Apr-2009  lukem WARNS=4
 1.40  29-Aug-2008  gmcgarry branches: 1.40.6;
Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags for PCC.
 1.39  09-Feb-2008  mrg branches: 1.39.6;
make all sun2 use -O0 and move most of the hacks out into just 3 files.
 1.38  02-Feb-2008  tsutsui Add a findstage2 function (which returns block numbers where
the secondary boot is stored to embed them into the primary bootxx)
for ext2fs.

Currently disabled because there is no primary boot block
which supports ext2fs, but it might help someone in some day.
 1.37  01-Sep-2006  uwe branches: 1.37.8;
NetBSD/landisk support.
 1.36  12-May-2006  mrg don't do the -Wno-pointer-sign dance for host programs.
 1.35  11-May-2006  mrg sprinkle some -fno-strict-aliasing and -Wno-pointer-sign with GCC4.
 1.34  18-Feb-2006  dsl Changes to allow support for a reduced set of architectures.
In particular if SMALLPROG is set (eg for installation crunched ramdiskbin)
only build for the current MACHINE.
 1.33  29-Dec-2005  tsutsui Add ews4800mips support.
 1.32  12-Jun-2005  dyoung Build hp300 support into installboot(8).
 1.31  14-May-2005  chs add hp700 support.
 1.30  14-Nov-2003  lukem Disable hp300 support (again).
This code is not to be reenabled again until it is fixed to my satisfaction
(as a member of core and the person who ends up dealing with most of
the host tool build bugs)
 1.29  13-Nov-2003  dsl roundup() write of hp300 boot code to a multiplr of the disk sector size.
and re-instate the hp300 code - seems to work.
 1.28  10-Nov-2003  fvdl Disable the hp300 for now.
 1.27  08-Nov-2003  dsl First cut of hp300 installboot, seems to DTRT on i386.
Maybe this code ought to know how to add a file to the LIF filesystem.
 1.26  28-Oct-2003  mrg XXX: build mdsetimage.c / installboot/ffs.c with -O0 on sun2 as GCC3
barfs on these for now.
 1.25  27-Oct-2003  cl add next68k support to installboot
 1.24  18-May-2003  lukem Now that <bsd.prog.mk> DTRT if HOSTPROG is defined (i.e, it is a no-op),
there's no need to special-case .include-ing it.
 1.23  09-Apr-2003  dsl Add support for i386 boot code - for new bootxx stuff
 1.22  15-Jan-2003  mhitch Add support for amiga.
 1.21  02-Jun-2002  isaki Add x68k stuff.
 1.20  20-May-2002  lukem - use uint8_t instead of char for boot block blobs
- bbinfo_params:
- replace "int littleendian" with "bbinfo_endian endian"
- add comments
- shared_bbinfo_clearboot():
- add callback method to shared_bbinfo_clearboot()
- don't clear from 0..headeroffset; use a callback to do that
- add news68k and newsmips support.
From Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>, with a rework by me to
take advantage of the new shared_bbinfo_clearboot() callback.
(XXX: untested yet)
 1.19  15-May-2002  lukem bootblock.h:
- unify sparc_bbinfo (1064 bytes, with 256 block entries)
and sun68k_bbinfo (296 byte, with 64 block entries)
into shared_bbinfo (512 bytes, with 118 block entries),
which will be also shared by future bbinfo-using platforms
(including macppc)
- add datestamp to *_BBINFO_MAGIC strings, to prevent installboot vs
bootxx version skew.
- add macppc support

*/bootxx.c:
- migrate to new shared_bbinfo structure

installboot:
- add macppc support (still needs applepartmap support and testing)
- improve and add some more warnings & errors to installboot
- implement shared_bbinfo_clearboot() and shared_bbinfo_setboot(), which
perform the majority of the work for bbinfo-using back-ends
(rather than replicating that across multiple back-ends).
 1.18  06-May-2002  pk Add sparc module.
 1.17  26-Apr-2002  lukem s/_SRC_TOP_/NETBSDSRCDIR/
 1.16  24-Apr-2002  lukem convert from "sun68k_bbinfo.h" to <dev/sun/sun_boot.h>
 1.15  23-Apr-2002  lukem after consideration, don't bother with compat symlinks, as it might
cause end-user confusion if the syntax changed between
/usr/mdec/installboot and /usr/sbin/installboot
 1.14  22-Apr-2002  bjh21 include <bsd.own.mk> for _SRC_TOP_
 1.13  22-Apr-2002  fredette Install the compatability symlink for sun2.
In the sun68k handler, add some sync()s to make sure we
get a coherent picture of the filesystem. Maybe should
be in the MI filesystem code?
 1.12  22-Apr-2002  lukem Add sun2 backend from Matthew Fredette.
(Implemented with "sun68k.c" as it should eventually support "sun3" as well.)
 1.11  19-Apr-2002  lukem - Add code from Matt Fredette <fredette@theory.lcs.mit.edu> to implement
fstype checking, and back-end "ffs" support.
- Consistently use at least uint32_t for blocknumbers (vs. int / long / ...)
- Consistently use uintXX_t instead of u_intXX_t.
- Move various duplicated prototypes into "installboot.h"
 1.10  11-Apr-2002  lukem - add no_parseopt(), no_setboot() and no_clearboot() methods for back-ends
to use when they don't support a particular method
- don't automatically generate machines.c anymore
- add entries for i386 (temporarily unsupported) and shark
(permanently unsupported)
 1.9  06-Apr-2002  bjh21 Install the compat symlink into ${DESTDIR}.
 1.8  06-Apr-2002  bjh21 Don't install the compat symlink if this is a HOSTPROG.
 1.7  04-Apr-2002  lukem Add framework for adding compat symlink from /usr/mdec/installboot ->
/usr/sbin/installboot.
Enable pmax.
 1.6  04-Apr-2002  lukem Add sparc64 back-end, contributed by Matthew Green.
 1.5  03-Apr-2002  lukem Add support for alpha, based on {vax,pmax}.c and
sys/arch/alpha/stand/installboot.
XXX: not fully tested yet.
 1.4  03-Apr-2002  lukem Migrate MD files to arch/ subdir. Suggested by Hubert Feyrer.
 1.3  03-Apr-2002  lukem Add pmax installboot back-end; from vax.c and arch/pmax/stand/installboot/*.
XXX: not tested yet.
 1.2  03-Apr-2002  lukem replace machines.c rebuild with "regenmachines", which needs to be run
manually
 1.1  03-Apr-2002  lukem Machine independent "unified" installboot(8).
Currently only supports vax, with more MD back-ends to be added RSN.
 1.37.8.1  23-Mar-2008  matt sync with HEAD
 1.39.6.1  18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.40.6.1  13-May-2009  jym Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
 1.42.2.1  08-Feb-2011  bouyer Sync with HEAD
 1.43.2.1  23-Jun-2011  cherry Catchup with rmind-uvmplock merge.
 1.46.2.2  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")
 1.46.2.1  30-Oct-2012  yamt sync with head
 1.47.2.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.48.4.1  16-Jul-2015  snj Pull up following revision(s) (requested by mlelstv in ticket #844):
usr.sbin/installboot/Makefile: revisions 1.49, 1.50
usr.sbin/installboot/installboot.c: revisions 1.37, 1.38
usr.sbin/installboot/arch/amiga.c: revision 1.9
Support wedge names.
--
Can't use getfsspecname (and thus wedge names) while building tools.
--
Linking against libutil is not appropiate for tools.
--
Compute bootloader checksum correctly also on little endian systems.
 1.50.2.1  20-Mar-2017  pgoyette Sync with HEAD
 1.51.14.2  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.51.14.1  10-Jun-2019  christos Sync with HEAD
 1.51.6.1  07-May-2021  martin Pull up following revision(s) (requested by mrg in ticket #1678):

bin/pax/options.c: revision 1.119
usr.bin/config/scan.l: revision 1.32
usr.bin/make/main.c: revision 1.274
bin/pax/extern.h: revision 1.60
usr.bin/config/defs.h: revision 1.106
usr.bin/make/make.h: revision 1.105
sbin/newfs_udf/udf_create.c: revision 1.27 (patch)
sbin/newfs_udf/newfs_udf.h: revision 1.7 (patch)
usr.bin/config/main.c: revision 1.100
usr.sbin/installboot/Makefile: revisions 1.53,1.54 (patch)
usr.sbin/installboot/installboot.h: revision 1.41 (patch)
usr.sbin/installboot/machines.c: revisisons 1.41,1.42 (patch)

Avoid depending on common symbols.
 1.52.2.1  21-Aug-2019  msaitoh Pull up following revision(s) (requested by martin in ticket #80):
usr.sbin/installboot/Makefile: revision 1.53
usr.sbin/installboot/Makefile: revision 1.54
usr.sbin/installboot/machines.c: revision 1.41
usr.sbin/installboot/machines.c: revision 1.42
Replace black voodo linker magic (sometimes failing) with some
makefile + macro magic to trim the list of available machines on size
restricted install media.
Never trust a compiler that predefines i386 as 1 - do the symbol name
concatenation at the make level instead.
 1.56.6.1  22-Jun-2024  martin Pull up following revision(s) (requested by tsutsui in ticket #722):

sys/fs/cd9660/cd9660_util.c: revision 1.16
sys/arch/hp300/stand/common/clock.c: revision 1.14
sys/arch/hp300/stand/common/scsireg.h: revision 1.5
sys/arch/hp300/stand/common/scsireg.h: revision 1.6
sys/arch/hp300/stand/Makefile.buildboot: revision 1.38
sys/arch/hp300/include/bus.h: revision 1.23
sys/arch/hp300/stand/Makefile.buildboot: revision 1.39
sys/arch/hp300/stand/common/sd.c: revision 1.12
sys/arch/hp300/stand/common/prf.c: revision 1.6
sys/arch/hp300/stand/common/sd.c: revision 1.13
usr.sbin/installboot/installboot.8: revision 1.106
usr.sbin/installboot/Makefile: revision 1.59
sys/arch/hp300/stand/common/devopen.c: revision 1.14
usr.sbin/installboot/installboot.8: revision 1.107
sys/arch/hp300/stand/common/ite_dumb.c: revision 1.2
sys/arch/hp300/stand/common/devopen.c: revision 1.15
usr.sbin/installboot/installboot.8: revision 1.108
sys/fs/cd9660/cd9660_extern.h: revision 1.29
usr.sbin/installboot/installboot.8: revision 1.109
tools/Makefile.nbincludes: revision 1.11 (patch)
sys/arch/hp300/dev/rboxreg.h: revision 1.3
sys/arch/hp300/stand/common/scsivar.h: revision 1.5
sys/arch/hp300/dev/dnkbd.c: revision 1.14
sys/arch/hp300/hp300/trap.c: revision 1.156
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.12
sys/arch/hp300/dev/frodoreg.h: revision 1.6
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.13
sys/arch/hp300/stand/common/ite_sti.c: revision 1.2
sys/arch/hp300/stand/common/hil.c: revision 1.15
usr.sbin/installboot/arch/hp300.c: revision 1.18
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.14
sys/arch/hp300/dev/rbox.c: revision 1.4
usr.sbin/installboot/arch/hp300.c: revision 1.19
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.15
sys/sys/bootblock.h: revision 1.59
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.16
usr.sbin/installboot/installboot.h: revision 1.44
sys/arch/hp300/stand/mkboot/volhdr.h: file removal
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.17
sys/arch/hp300/dev/hpib.c: revision 1.45
usr.sbin/installboot/installboot.h: revision 1.45
usr.sbin/installboot/cd9660.c: revision 1.1
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.18
sys/arch/hp300/dev/topcatreg.h: revision 1.3
usr.sbin/installboot/cd9660.c: revision 1.2
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.19
sys/arch/hp300/stand/inst/inst.c: revision 1.25
sys/arch/hp300/stand/uboot/Makefile: revision 1.12
sys/arch/hp300/dev/dvbox.c: revision 1.4
sys/arch/hp300/dev/dma.c: revision 1.45
sys/arch/hp300/stand/uboot/Makefile: revision 1.13
sys/arch/hp300/stand/common/rd.c: revision 1.16
sys/arch/hp300/stand/inst/Makefile: revision 1.12
distrib/hp300/cdroms/installcd/Makefile: revision 1.4
sys/arch/hp300/stand/mkboot/volhdr.h: revision 1.6
sys/arch/hp300/stand/common/machdep.c: revision 1.16
usr.sbin/installboot/fstypes.c: revision 1.14
sys/arch/hp300/hp300/machdep.c: revision 1.238
sys/arch/hp300/include/cpu.h: revision 1.73
sys/arch/hp300/dev/diofbreg.h: revision 1.4
sys/arch/hp300/stand/common/scsi.c: revision 1.12
sys/arch/hp300/stand/common/netio.c: revision 1.19
sys/arch/hp300/stand/common/scsi.c: revision 1.13
sys/arch/hp300/dev/sti_sgc.c: revision 1.8
sys/arch/hp300/dev/rtc.c: revision 1.22
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.20
sys/arch/hp300/stand/common/conf.h: revision 1.4
sys/arch/hp300/hp300/autoconf.c: revision 1.111
sys/arch/hp300/stand/common/conf.c: revision 1.15
sys/arch/hp300/stand/mkboot/Makefile: revision 1.12
sys/arch/hp300/stand/mkboot/Makefile: revision 1.13
sys/arch/hp300/hp300/autoconf.c: revision 1.114
sys/arch/hp300/dev/dcmreg.h: revision 1.11
sys/arch/hp300/dev/diofbvar.h: revision 1.4
sys/arch/hp300/dev/dcm.c: revision 1.91
sys/fs/cd9660/cd9660_util.c: revision 1.15
sys/arch/hp300/dev/mcclock_frodo.c: revision 1.2

TAB/space cleanup.

installboot(8): formatting improvements

Use Ar foo instead of <foo>; this is mdoc.

Other formatting tweaks.
installboot(8): fix up markup

Don't overuse .Sy - when everything is highlighted, nothing is. Use
.Ic for options &c to get correct PostScript output (both are bold in
plain text).

Use Aq Ar inside .Pa, as both Pa and Ar are rendered as underscored
text in plain text output, and the distinction is lost.

Don't set examples in bold, but give them .Pp space around - they are
much easier to read this way.

Use consistent -width in FILES.
document how to use installboot on netbsd/vax.

PR/57909: Jan-Benedict Glaw: Don't include (build) timestamp when doing a
reproducible build
fix usage string, improve error handling.
add missing chunk for repro-build. fix gcc warnings.
avoid stringop truncation, fix copyright string to prevent assembler warnings.

Fix build as a tool (Jan-Benedict Glaw)

Fix integer overflow of strtol(3) for "loadpoint" address on ILP32 hosts.

This strtol(3) was introduced in rev 1.12 for PR/57909 after netbsd-10,
but it returns LONG_MAX (0x7FFFFFFF) for 0xFFF00000 on ILP32 hosts and
the wrong loadpoint causes "NOT ENOUGH MEMORY" error by the BOOTROMs
on loading uboot.lif on (at least) my 9000/360 and 9000/425t.

Misc cosmetic changes for mostly readability.
- KNF and add some newlines per blocks
- define and use proper bintobcd() macro
- make local functions and variables static

The same uboot.lif binaries are generated.

Rename ${PROGAOUT} -> ${PROGELF} to reflect reality.
Use proper signedness for the LIF file system data structures.

Ancient 4.3BSD used short and int for location, file size, file type,
and addresses etc. but all of them should be unsigned.

Also rename several variables and add comments for readability.
The LIF file system info can be found in "The HPDir Project" page:
https://www.hp9845.net/9845/projects/hpdir/
The same uboot.lif binaries are generated.

Add a preliminary CD boot support to uboot for preparation of PR/54455.
Briefly tested on mame, but not enalbed yet.

Recognize SCSI CD-ROM devices as a booted device properly.

Necessary for PR port-hp300/54455, to boot an md root root RAMDISK

kernel from CD-ROM without "WARNING: can't find match for bootdev:"
prompt.

Sync with src/sys/arch/hp300/stand/mkboot/volhdr.h rev 1.6.
https://mail-index.netbsd.org/source-changes/2024/05/07/msg151195.html

Use proper signedness for the LIF file system data structures.
mkboot should use this MI <sys/bootblock.h> and volhdr.h should
be removed soon.

Use MI <sys/bootblock.h> to refer LIF filesystem structures.
This should have been done when LIF definitions were initially added
to <sys/bootblock.h> for MI installboot(8).

Enable SUPPORT_CD on uboot.

Make cd9660_util.c usable in userland tools like installboot(8).

This was partially done for src/distrib/cdrom/macppc_installboot,
but more strict prototypes are necessary for native binary builds.

Install cd9660 related system headers for tools installboot(8) builds.

Reorder function prototypes per source files.

Add cd9660 support to search a bootloader file in the target file system.

Also add CD boot support for hp300, using a bootloader file in cd9660 fs.
This is a tool's part to close PR/54455.

HP 9000/300 machines read LIF directory entry allocated after
the LIF volume header at the top of the boot disk during bootstrap,
and a bootstrap file must be contiguously allocated on the disk
due to limitation of the LIF specification.

Current NetBSD/hp300's bootloader is larger than ~80KB so we have
to prepare a special 'boot' partition for FFS (that has only 8KB (ffsv1)
or 32KB (ffsv2) spaces) disks to put such a large bootloader.

On the other hand, on ISO9660 fs all files are allocated contiguously
so we can specify a bootloader file in the target ISO9660 directly
in the LIF directory entry.

Note we can simply use the existing "append" option to create bootable
CD ISO for hp300, but it looks some emulators (at leaset MAME) reject
such non-standard ISO files, i.e. with an appended bootloader file at
the end of the image.

Put a RAMDISK kernel and SYS_UBOOT into hp300 installcd to make it bootable.

This should finally close PR/54455.

Fix tools build errors on Cygwin.

Appease warnings on building tools/installboot on Cygwin.

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