Enable efiboot on i386, for 32 bit bootblocks

branches: 1.28.12; 1.28.14;
Initial commit of native amd64 EFI boot loader.

branches: 1.27.6; 1.27.24; 1.27.28; 1.27.32;
Stop building boot ROM images for old PC NICs as discussed on tech-kern.

branches: 1.26.8; 1.26.12;
bootxx_cd9660 (cdboot), like bootxx_fat16 (fatboot), is not a traditional
libsa-based program. As such, build bootxx_cd9660 where its source lives.
This has been done by moving bootxx/bootxx_cd9660/Makefile to cdboot/Makefile
and adjusting the relative paths appropriately, so as to minimize binary change.

branches: 1.25.62; 1.25.70;
Descend into fatboot, regroup slightly

branches: 1.24.22;
No need to build pxeboot_com0 any more

branches: 1.23.16;
No longer build biosboot*.sym and installboot.

branches: 1.22.2;
Build my new i386 bootcode

Build mbr code here (instead of in sbin/fdisk/mbr)

Allow the serial console boot blocks to be built with a specific
console speed, and build some of the more common ones.

branches: 1.19.2;
Add host-OS tools for i386, which end up in the "installation/misc"
directory of the release tree.

* Rename the pxeboot binary from "pxeboot" to "pxeboot_ia32", since
there are other architectures (e.g. IA64) which also use PXE.
* Get the console right in pxeboot, from Andreas Gustafsson.
* Add a "com0" version of pxeboot, to address the same issue that
biosboot_com0 addresses.

Move the individual NIC ROM Makefiles into a subdirectories of
netboot. Requested by Christos.

Cleanup of i386 bootloader building:
* Add separate directories for the individual netboot ROMs and
always build them.
* Each bootloader Makefile explicitly specifies the start file
and link address it wishes to use.
* genprom becomes a proper host program.
* Make sure all generated files get cleaned up.
* Set BINDIR in Makefile.inc
* Add compressed image support to pxeboot.
* Make pxeboot use the default serial console speed (9600).

Add a PXE boot loader. PXE interface code is derived by code
written by Alfred Perlstein, Paul Saab, John Baldwin for FreeBSD.

Still needs some work, but this will load a kernel on a Soekris net4501.

Many thanks to Frank van der Linden and his simulator wizardry for
helping me debug the low-level startup code.

branches: 1.14.4;
Nuke biosboot_ps2

branches: 1.13.8;
add special bootblocks for IBM PS/2 - those machines need different gate A20
addressing

Addredd port-i386/9897, but differently. Since the effect of resetting
the video mode on machines with ancient or no video cards is not clear,
for safety's sake a I created a new biosboot variant, biosboot_resetvideo
that does the call.

Anyway, now I can boot my i-opener without hitting Tab. Thanks Andrew!

Build biosboot_com0 too.

branches: 1.10.8;
Turn off biosboot_ser until makefile issues get worked out..

Also build serial bootblocks by default, installing into
/usr/mdec/biosboot_ser.sym
Change Makefile.booters to not assume `version' file is in source directory.

Ressurect (not quite, since this is in fact the new boot code Makefile
now).

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

LOCORE -> _LOCORE

new RCS ID format.

Add RCS indentifiers.

add rcsids to everything and clean up headers

after 0.2.2 "stable" patches applied

branches: 1.1.1;
Initial revision

i386: stand: Tiny clean up for `start_pxeboot.o`, NFC

i386: stand: Adjust for DOS-routine migration

i386: stand: Drop `*.rom` support; only used for netboot

i386: stand: Retire its own nfs.c, and switch to libsa/nfs.c. NFC

i386: stand: G/C `genprom`; used only by netboot

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.

Fix the clang build by setting -z noseparate-code

branches: 1.94.20;
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.

Specify NOLIBCSANITIZER in x86 bootloader-like code under sys/arch/

Set NOLIBCSANITIZER for i386 and amd64 specific bootloader-like code.

branches: 1.92.2;
- Disable MKSANITIZER
- Redo using NOPIE
- Add NORELRO

branches: 1.91.12;
centralize vers.c building for standalone programs.

branches: 1.90.2; 1.90.4;
Compile the bootblocks for i386 CPUs, even when the main target architecture
is amd64.
Fixes PR port-i386/49725.

branches: 1.89.4; 1.89.6;
Add empty LIBCRTI= as LIBCRT0 to build sa programs without installed DESTDIR.

XXX: probabry we should have bsd.saprog.mk or something.

Set KLINK_MACHINE

Use <bsd.klinks.mk>

branches: 1.86.2; 1.86.4;
Don't depend on HAVE_GCC being always present.

branches: 1.85.2;
remove all the code that supported HAVE_GCC=3. mostly from chuq.

Refactor compiler-specific optimizer flags. Mark bootxx as supported
with clang.

branches: 1.83.2;
Do not ignore errors from genprom.

Drop bootprog_maker (formerly enabled by -M) and bootprog_date (formerly
disabled by -D) from the output of newvers_stand.sh. Change -D to the
inverted logic, so that it adds the date to bootprog_rev in ().

Change all platforms accordingly. -D is added if MKREPRO is not yes and
wasn't present before. Platforms that didn't use -D don't depend on
MKREPRO now either.

branches: 1.81.2; 1.81.4;
It just so happens we don't need -Wno-attributes if we
place __packed in the right place.

remove almost all the ability to build netbsd with an a.out target.
we're ELF now, and there are many missing checks against OBJECT_FMT.
if we ever consider switching, the we can figure out what new ones
we need but for now it's just clutter.

this doesn't remove any of the support for exec_aout or any actually
required-for-boot a.out support, only the ability to build a netbsd
release in a.out format. ie, most of this code has been dead for
over a decade.

i've tested builds on vax, amd64, i386, mac68k, macppc, sparc, atari,
amiga, shark, cats, dreamcast, landisk, mmeye and x68k. this covers
the 5 MACHINE_ARCH's affected, and all the other arch code touched.
it also includes some actual run-time testing of sparc, i386 and
shark, and i performed binary comparison upon amiga and x68k as well.


some minor details relevant:
- move shlib.[ch] from ld.aout_so into ldconfig proper, and cut them
down to only the parts ldconfig needs
- remove various unused source files
- switch amiga bootblocks to using elf2bb.h instead of aout2bb.h

Introduce .WAIT into the cleandir rule for blasting the libsa/libkern/etc.
trees, because it can race with the libsa/libkern/etc. makefiles' own
cleandir rules. I think I've found all of the uses of the offending idiom...
Closes PR 43360.

branches: 1.78.2; 1.78.4;
Remove extra trailing slash in ${S} path.

branches: 1.77.2;
Use ${VERSIONFILE} instead of ${.ALLSRC} to match Makefile.boot.

This change stops the full path of newvers_stand.sh from showing up in
pxeboot_ia32.bin.

branches: 1.76.2; 1.76.4;
Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags for PCC.

Call newvers_stand.sh with -DM so we don't include the (unused) date
and builder in the data segment.

make vers.c also depend on the script that builds vers.c

branches: 1.73.16; 1.73.20; 1.73.22; 1.73.24; 1.73.26;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Remove -DBOOT_ELF64 to make build on amd64.

- Make i386 bootblocks boot amd64 kernels, and change to say "NetBSD/x86..."
- Don't bother booting a.out kernels any more.

branches: 1.70.14; 1.70.22; 1.70.32; 1.70.34; 1.70.36;
revert the previous because it doesn't work without destdir populated.
pointed by Valeriy E. Ushakov.

-I${S}/../common/include for libprop.

Convert to using CC instead of LD, as LDFLAGS is for CC not LD.

whitespace consistency

branches: 1.66.2;
Add -Wno-attributes for amd64, too.

branches: 1.65.2;
When creating BASE.rom, don't use BASE.bin as a temporary filename,
since the latter is a valid target name.

support MAKEVERBOSE

- -mcpu=i386 is gone in GCC4
- we need -Wno-attributes (to avoid __packed__ warnings)
- use -Wno-pointer-sign
- remove some redundancy from pxeboot/Makefile

branches: 1.62.4; 1.62.6; 1.62.8; 1.62.12;
merge ktrace-lwp.

use a .BEGIN target to make the various symlinks,
the previous way had problems with parallel make.

branches: 1.60.2;
add dependall and realdepend to the targets that we need to call in the
beginning. XXX: The real fix (handle dependencies in .BEGIN) is forthcoming.

PR/9567: Arne H. Juul: .BEGIN targets should not use dependencies.

branches: 1.58.10;
Use CPUFLAGS for codegen options.

Ignore errors on some rm -rf's for platforms that aren't quite
POSIX compliant
and return errors on r/o source (FreeBSD) for -rf. Fixes PR#25022

branches: 1.56.2;
stand/lib/crt/rom is no more, no need for it in .PATH

Use ${HOST_SH} instead of `sh'.

If necessary, pull in <bsd.sys.mk> to get the definition of HOST_SH;
Makefiles that pull in one of (most of) <bsd.*.mk> will get this anyway.

Need to explicitly create directory behing symlink.
Clean share lib directory.

Only build the libraries once,

BSSTART was only used for the (now depracated) old stand/biosboot code.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

branches: 1.50.2;
Use ${MACHINE} when generating the version string, not plain 'i386'.

be consistent with other Makefiles here and invoke "rm -f" separately to ln -s

replace "ln -sf .... $@" with "rm -f $@ && ln -s .... $@"
since the latter works correctly ...

Clean up machine include dir handling a tad.

Remove definition of LIBSA_SUPPORT_UFS2, the source will only build separate
ufsv1 and ufsv2 objects (the merged one was too large for the code that only
supported a single fs type).

Add support for UFS2. UFS2 is an enhanced FFS, adding support for
64 bit block pointers, extended attribute storage, and a few
other things.

This commit does not yet include the code to manipulate the extended
storage (for e.g. ACLs), this will be done later.

Originally written by Kirk McKusick and Network Associates Laboratories for
FreeBSD.

create a symlink so that eg <x86/trap.h> is found

Revert my last change. While it actually allows a build to finish,
an iso-image created from the resulting release won't boot. I don't
know if this change is the source of that, but one more knowledgable
than I about the x86 booter needs to look at this, and I don't want
the waters muddied any more than necessary.

Add CPPFLAGS+= -D__daddr_t=int32_t.

Change all .S files to use .code16 and .code32
Support 32bit addresses >64k as valid on bios calls.
Move stack for dosboot and biosboot to >64 so stack doesn't hit data.
Use disk sector number passed by mbr code to select default partition
(the mbr code doesn't do this yet).
NB only biosboot and dosboot have been tested so far.
(changes approved by christos and fvdl)

Make the ld workaround work on x88_64, and add the temporary ld script
to CLEANFILES.

Remove the 4k between code and data to increase the stack space.
Support for 64bit disk blocks seems to have exploded the code.

Stub out LIBCRT0, LIBCRTBEGIN, LIBCRTEND, and LIBC.

Some hacks to make this compile on x86_64.

make vers.c depend on ${SOURCES} and remove .PHONY tag for it, so that it
would only be regenerated if any of the input files changed

branches: 1.35.2;
Assign COPTS instead of adding to it, avoids situation where -mi386
is mixed with -march=something_incompatible

suggested by thorpej

Build with -ffreestanding.

branches: 1.33.6; 1.33.8;
Make sure we override any optimization options specified by the
user; the boot blocks don't work when built with e.g. -mcpu=i486
(probably due to how branches are aligned in that case, causing
segment boundaries to be crossed).

Cleanup of i386 bootloader building:
* Add separate directories for the individual netboot ROMs and
always build them.
* Each bootloader Makefile explicitly specifies the start file
and link address it wishes to use.
* genprom becomes a proper host program.
* Make sure all generated files get cleaned up.
* Set BINDIR in Makefile.inc
* Add compressed image support to pxeboot.
* Make pxeboot use the default serial console speed (9600).

Add a PXE boot loader. PXE interface code is derived by code
written by Alfred Perlstein, Paul Saab, John Baldwin for FreeBSD.

Still needs some work, but this will load a kernel on a Soekris net4501.

Many thanks to Frank van der Linden and his simulator wizardry for
helping me debug the low-level startup code.

Don't make the symlinks on clean rules as well as obj rules. Breaks r/o source
trees that haven't gotten to the make obj recursion part of make build
otherwise.

GCC 2.95 generates significantly larger code with -O2 than our old compiler did; this can cause the second-stage bootblock to exceed the number of blocks that fit in the list in the first-stage bootblock. I thought we used to explicitly set -Os in here; anyway, with this change, we do now!

objcopy -> ${OBJCOPY}; remove redundant definitions of OBJCOPY?= (it is
now in bsd.own.mk).

branches: 1.27.4;
Include bsd.own.mk a bit earlier so that make cleandir works.

branches: 1.26.4; 1.26.6;
switch to MI newvers_stand.sh version info generator

Fix the symlink hack.

branches: 1.24.2;
fix creation of DOS / ROM images from ELF executables: use "objcopy"

make sure the ./machine link is created early enough for specific targets,
fixes PR port-i386/7553 by David Rankin <drankin@bohemians.lexington.ky.us>

Use new loadfile.c

branches: 1.21.4;
Hack to make biosboot_ser work.

XXX The makefile structure in src/sys/arch/i386/stand is very bad.

$(OBJS) -> ${OBJS}

Also build serial bootblocks by default, installing into
/usr/mdec/biosboot_ser.sym
Change Makefile.booters to not assume `version' file is in source directory.

Remove "lib" directory only during "make cleandir" so that ".depend"
doesn't get nuked during "make clean".

Remove "lib" directory created during build process while doing
"make clean" or "make cleandir".

Remove exec.o, and make necessary changes for elf.

Both booters need exec.o now.

add dependency to get the version number right

add -nostdinc to CPPFLAGS, so that /usr/include won't be used

Nuke the override of libkern SRCS from orbit.

strchr.c disappeared from libkern, use index.c instead
(we can't control the libkern build as we want, but it works...)

Prevent error if machine-symlink isn't already there (rm -> rm -f)

Use the "proginstall" rule from <bsd.prog.mk> to get the UPDATE
behaviour right.

Make "genprom" work in objdir.
Minor cleanup to ease bootcode development at non-standard locations.
Closes PR port-i386/4013 by Luke Mewburn.

branches: 1.7.2;
New welcome banner code, modeled after NetBSD/hp300's boot program
welcome banner code. Includes additional build information, and it
generally nicer to look at.

Use include files from kernel source, not userland. Create a
"machine" link automatically for this.

Define _STANDALONE for standalone programs.

Allow to boot from DOS if a XMS manager is installed.
XMS is recognized and used as temporary buffer for the kernel image.
The processor must still be in real mode at program start, so EMM386
or QEMM are not allowed. W*95 is OK.
Written by Martin Husemann (pr port-i386/3336).
Completely separated from other bootloaders for sanity.

Force inclusion of "diskbuf" into bootsectors.
This allows to build bootsectors containing netboot code
("make netboot.sym" in the netboot directory).

STRIP -> STRIPFLAG

branches: 1.1.1;
Initial revision

Merge the OPT_SIZE flags. -Oz is not always producing smaller code that -Os,
so default to -Os for both, and we'll override where needed.

branches: 1.18.30;
fix duplicated chunk from merge

Merge the [pgoyette-compat] branch

Specify NOLIBCSANITIZER in x86 bootloader-like code under sys/arch/

Set NOLIBCSANITIZER for i386 and amd64 specific bootloader-like code.

branches: 1.15.2;
- Disable MKSANITIZER
- Redo using NOPIE
- Add NORELRO

branches: 1.14.2;
gcc-6 needs -nosse

Remove some manual size tuning that no longer seems to be needed.

branches: 1.12.4; 1.12.8;
Add -fno-asynchronous-unwind-tables -fno-exceptions to gcc builds.
One of these (probably the first) is needed to stop the eh-frame
section being created.
The eh_frame section is loadable and bloats the boot images.
This might be enough to make pxeboot work.

branches: 1.11.4;
Explicitly disable unwind table generation.

branches: 1.10.2; 1.10.4;
-enable-iv-rewrite is neither supported nor needed with LLVM now.
The one case where it was a big win was partially an inliner bug and
the changes to the inline cost estimate are much smaller over all.

Use new -mstack-alignment option to replace the removed internal option.

branches: 1.8.2; 1.8.6;
Update LLVM/Clang snapshot to r141658. This primarily fixes a regression
preventing Qt4 from building.

Refactor compiler-specific optimizer flags. Mark bootxx as supported
with clang.

branches: 1.6.8; 1.6.26;
Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags for PCC.

branches: 1.5.62; 1.5.66; 1.5.68; 1.5.72;
as mrg@ points out, including <bsd.own.mk> is the proper fix.

deal sanely(?) with when HAVE_GCC is undefined.

add more HAVE_GCC == 4 protection

- -mcpu=i386 is gone in GCC4
- we need -Wno-attributes (to avoid __packed__ warnings)
- use -Wno-pointer-sign
- remove some redundancy from pxeboot/Makefile

branches: 1.1.2; 1.1.4; 1.1.10; 1.1.38; 1.1.52; 1.1.54; 1.1.56; 1.1.60;
Cleanup of i386 bootloader building:
* Add separate directories for the individual netboot ROMs and
always build them.
* Each bootloader Makefile explicitly specifies the start file
and link address it wishes to use.
* genprom becomes a proper host program.
* Make sure all generated files get cleaned up.
* Set BINDIR in Makefile.inc
* Add compressed image support to pxeboot.
* Make pxeboot use the default serial console speed (9600).

nuke this, there is no valuable information anymore

branches: 1.2.14;
minor corrections

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

after 0.2.2 "stable" patches applied

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

after 0.2.2 "stable" patches applied

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

Add RCS identifiers (this time on the correct side of the branch), and
incorporate recent changes in netbsd-0-9 branch.

add rcsids to everything and clean up headers

bsd->netbsd

386bsd -> bsd for kernel name, and kill weird binary...

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

Nuke remaining patchkit headers.

add rcsids to everything and clean up headers

386bsd -> bsd for kernel name, and kill weird binary...

after 0.2.2 "stable" patches applied

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

switch to MI newvers_stand.sh version info generator

branches: 1.1.20; 1.1.28;
New welcome banner code, modeled after NetBSD/hp300's boot program
welcome banner code. Includes additional build information, and it
generally nicer to look at.

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

after 0.2.2 "stable" patches applied

branches: 1.1.1;
Initial revision

Clean up deleted files.

initial import of 386bsd-0.1 sources

All these files are ancient and haven't been used in years -- the
current boot blocks are in boot/; we need the thing cleaned out so we
can put the new libsa based boot stuff in its place.

new RCS ID format.

add rcsids to everything and clean up headers

branches: 1.1.1;
Initial revision

Introduce .WAIT into the cleandir rule for blasting the libsa/libkern/etc.
trees, because it can race with the libsa/libkern/etc. makefiles' own
cleandir rules. I think I've found all of the uses of the offending idiom...
Closes PR 43360.

branches: 1.7.56; 1.7.70; 1.7.76; 1.7.78;
use "=" instead of ":=" where .OBJDIR is used because it might change
later in <bsd.obj.mk>, thanks to Alan Barrett for the hint

branches: 1.6.20; 1.6.22;
merge ktrace-lwp.

branches: 1.5.12;
Use := when saving ${.OBJDIR) - then we get the correct value!

Add bsd.obj.mk so these directories get their own obj directory (for the
library objects shared by their subdirectories).
Needed when the obj directory isn't a parent of the subdirectories obj directory

Change the way the shared lib directory is handled.
Should now work if ${.OBJDIR} = ${.CURDIR}/obj.

branches: 1.2.2;
Remove "lib" directory in "cleandir" target.

Add files for 2nd stage boot loader

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.

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.

Infrastructure for putting kernel+modules in /netbsd/kernel and
/netbsd/modules respectively instead of /netbsd and
/stand/<arch>/<version>/modules. This is only supported for x86,
and is turned off by default. To try it, add KERNEL_DIR=yes in your
/mk.conf and install a system from that build.

Add multiboot 2 support to x86 bootloaders

multiboot 2 is required to boot Xen on an EFI system.
This also require a kernel patch for properly discovering
the ACPI RSDP, which is available after 20190912, in
src/sys/arch/x86/acpi/acpi_machdep.c 1.26-1.28

There are a few missing bit in this multiboot 2 implementation
(which are unused by Xen):
- Header tags Address, Freambuffer, and Relocatable are ignored
- Tags APM and Network are not provided
- Tags ACPI old and ACP new are only provided for ACPI boot
- Tag boot device does not provides the subpart (BSD disklabel partition)

Notes:
- multiboot2 is disabled in dosboot, otherwise the binary
gets too big and build fails.
- in src/sys/arch/i386/stand/efiboot, consinit() is renamed
as efi_consinit() to avoid prototype conflicts in src/sys/sys/systm.h

branches: 1.72.4;
Specify NOLIBCSANITIZER in x86 bootloader-like code under sys/arch/

Set NOLIBCSANITIZER for i386 and amd64 specific bootloader-like code.

branches: 1.71.2;
- Disable MKSANITIZER
- Redo using NOPIE
- Add NORELRO

branches: 1.70.6; 1.70.12;
centralize vers.c building for standalone programs.

branches: 1.69.2; 1.69.4;
We'll define the kernel types for standalone code.

Define _KERNTYPES for things that need it.

${PROG} depends on ${LDSCRIPT}.

branches: 1.66.4;
Use ldscript. Identical output confirmed.

Other boot loaders name ELF *.sym, not *.syms. Follow that convention.

branches: 1.64.2;
Add empty LIBCRTI= as LIBCRT0 to build sa programs without installed DESTDIR.

XXX: probabry we should have bsd.saprog.mk or something.

undo the linker script hack now that the linker scripts do this.

remove commented out -fno-reorder-functions

Use a custom ldscript so that we can keep boot_start at 0.

Add KLINK_MACHINE= i386

Use <bsd.klinks.mk>

branches: 1.58.2; 1.58.4;
Don't depend on HAVE_GCC being always present.

PR/45796: Evgeniy Ivanov minixfs3 support.

Apply the following patch submitted by Evgeniy Ivanov:
http://mail-index.NetBSD.org/tech-kern/2011/12/15/msg012226.html
http://mail-index.NetBSD.org/tech-kern/2011/12/17/msg012229.html

- add 'ls' op to struct fs_ops to support ls command on each fs,
enabled by -DLIBSA_ENABLE_LS_OP and SAMISCMAKEFLAGS+="SA_ENABLE_LS_OP=yes"
in libsa
- split sys/lib/libsa/ufs_ls.c into UFS specific part and MI part (ls.c)
that opens the target fs and calls fs-depedent XXX_ls() functions
- add a ls op for ext2fs
(all other fs than ufs and ext2fs don't have actual ls ops yet)
- replace existing MD ufs_ls() calls with this new MI ls()

The original patch was written for i386 and ext2fs.
zaurus zboot has been tested by nonaka@.
ews4800mips and x68k loaders have been tested by me (with several fixes).
landisk might be okay since it was almost copied from i386.

XXX1: "ls" op in fs_ops looks a bit inconsistent, but we will be able to
replace it with real fs ops like readdir if it's really worth
XXX2: someone might have to check sys/arch/ia64/stand/efi/libefi/efifs_ls.c

branches: 1.55.2; 1.55.6;
disable mmx/sse here too. hopefully fixes amd64 /boot issues.
certainly changes the output in ways that gcc 4.1 doesn't.

remove HAVE_GCC == 4 conditional

remove all the code that supported HAVE_GCC=3. mostly from chuq.

Put all the 'CFLAGS+= -Dxxx' together.

branches: 1.51.2;
Disable integrated assembler for files that use .code16 or .code32 for
now. Disable Clang completely for bootxx and netboot for now until the
size issue has been sorted out.

Enable LIBSA_PRINTF_LONGLONG_SUPPORT.
Useful in any of the cases where we already print a (64-bit) daddr_t.

Drop bootprog_maker (formerly enabled by -M) and bootprog_date (formerly
disabled by -D) from the output of newvers_stand.sh. Change -D to the
inverted logic, so that it adds the date to bootprog_rev in ().

Change all platforms accordingly. -D is added if MKREPRO is not yes and
wasn't present before. Platforms that didn't use -D don't depend on
MKREPRO now either.

branches: 1.48.2; 1.48.4;
Pass a 64-bit boot partition base LBA into x86 /boot,
while maintaining compatibility with existing bootxx code.

Move the bottom of the heap off the top of the stack. Also, increase the heap
size by 64KiB. These changes allows gzipped Xen with gzipped Dom0 kernels
to successfully boot. I also suspect this will cure the amd64 CD boot issue
without disabling ext2fs support.

disable ext2fs support in /boot on amd64 for now. it breaks cd booting.

XXX: i don't know why, or plan to figure it out, but at least now amd64
XXX: isos boot again.

Enable SUPPORT_EXT2FS. Tested on i386 that has root on ext2fs
with 128 byte and 256 byte inode sizes on QEMU.

Note for netbsd-5, this also requires HEAP_START=0x30000
as applied in rev 1.37, and this might also get another limit
on cdboot as described in PR install/42202.

Introduce .WAIT into the cleandir rule for blasting the libsa/libkern/etc.
trees, because it can race with the libsa/libkern/etc. makefiles' own
cleandir rules. I think I've found all of the uses of the offending idiom...
Closes PR 43360.

Add ${PROG}.syms to CLEANFILES

branches: 1.42.2; 1.42.4;
Change relay address for mbr and bootxx code to be 0x8800.
I'm not sure why I used 0x600, but I have a feeling that might
sometimes corrupt bios data.
0x8800 is far enough above 0x7e00 for a sector read to the latter address.

Keep the output of 'ld' prior to extracting the image.
Useful for debugging (etc) since it contains the symbols.

Remove extra trailing slash in ${S} path.

Prefer MACHINE_ARCH to MACHINE in some tests

Remove duplicated definitions.

Bootloader modifications for generic framebuffer console support on i386
and amd64 where VESA VBE 2.0+ is available.

* Add helper library and stubs to invoke VBE bioscalls.
* Bump HEAP_START as we were already dangerously close to our limits.
* bootdataseg now allows access > 16MB so in the future we can scribble
on the framebuffer.
* Pass BTINFO_FRAMEBUFFER parameters to kernel when configured.
* VBE modes are configured with the new 'vesa' command. Usage, when present:
* vesa {enabled|disabled}
Enable / disable linear framebuffer, default mode is 640x480x8. May
be changed in the future to determine mode based on VBE/DDC where
available.
* vesa list
List modes supported by the firmware that meet the following criteria:
* linear framebuffer
* packed pixel or direct colour mode
* vesa {modenum|modestr}
Enable specific VBE mode. The mode can be specified either as a
VBE mode number (eg. 0x101) or as a string (eg. 800x600x16).

branches: 1.36.2; 1.36.8;
disable PIE for boot code.

s/explicitely/explicitly/

Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags for PCC.

Add -DM to the newvers_stand.h invocation.

Why is there a "Makefile.boot" used here, and a "Makefile.booters"
used one level up, with redundant stuff between both of them? This all
used to be so clean...

branches: 1.32.4; 1.32.6; 1.32.8; 1.32.10;
Add commented out ext2fs definitions.

branches: 1.31.16;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Remove -DBOOT_ELF64 to make build on amd64.

- Make i386 bootblocks boot amd64 kernels, and change to say "NetBSD/x86..."
- Don't bother booting a.out kernels any more.

branches: 1.28.14; 1.28.22; 1.28.32; 1.28.34; 1.28.36;
Convert to using CC instead of LD, as LDFLAGS is for CC not LD.

branches: 1.27.4;
support MAKEVERBOSE

- -mcpu=i386 is gone in GCC4
- we need -Wno-attributes (to avoid __packed__ warnings)
- use -Wno-pointer-sign
- remove some redundancy from pxeboot/Makefile

branches: 1.25.4; 1.25.6; 1.25.8; 1.25.12;
merge ktrace-lwp.

use a .BEGIN target to make the various symlinks,
the previous way had problems with parallel make.

branches: 1.23.2;
Add support for cd9660 file system to the i386 BIOS bootloader.

If any of libraries needed by the "boot" is rebuilt vers.c should be
regenerated so that the build date is updated accordingly.

Workaround for issues seen on VIA C3-based systems. PR port-i386/26007

Tested on ML5000 board. This may not fix the problem on all variations of the
hardware, but it's likely that variations on the theme will. This workaround
is non-intrusive and should not affect any other CPUs.

add dependall and realdepend to the targets that we need to call in the
beginning. XXX: The real fix (handle dependencies in .BEGIN) is forthcoming.

More .BEGIN lossage.

branches: 1.18.10;
More complete fix for overriding CPUFLAGS and also apply fix to bootxx,
from Valeriy Ushakov.

Override CPUFLAGS to empty so that a CPUFLAGS setting in the user's
mk.conf don't affect the C options we need to build the boot loader.

Define CONSADDR for pcio.c (continuing the same hack use for the other
parameters).

Ignore errors on some rm -rf's for platforms that aren't quite
POSIX compliant
and return errors on r/o source (FreeBSD) for -rf. Fixes PR#25022

branches: 1.14.2;
Translate ascii keycode to help those with azerty keyboard type straight.

Remove depencency of vers.c on ${LIBLIST} - it messes up the depends and
I'm not sure why I added it now!
Default NWEVERSWHAT back to "BIOS Boot" - look better on boot banner page.

Use ${HOST_SH} instead of `sh'.

If necessary, pull in <bsd.sys.mk> to get the definition of HOST_SH;
Makefiles that pull in one of (most of) <bsd.*.mk> will get this anyway.

Pick up X86_BOOT_MAGIC_* from bootblock.h
Move boot_params.S to lib (seems useful to use it in pxeboot).

Change the way the shared lib directory is handled.
Should now work if ${.OBJDIR} = ${.CURDIR}/obj.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

Add another -DBOOT_ELF64 for amd64.

Add -m elf_i386 (for amd64) to LD.

branches: 1.6.2;
Make this work without a populated destdir:
machine and x86 symlinks.
Include from right places.
Don't depend on LIBCRT0,etc.

Also for the bootxx programs, keep the ELF object during the build
process.

Allow SOURCES to be overridden.

Comment out DEBUG_MEMSIZE.

Don't override PROG from subdir Makefile
Install into /usr/mdec

x86_64 -> amd64

Add files for 2nd stage boot loader

Pass a 64-bit boot partition base LBA into x86 /boot,
while maintaining compatibility with existing bootxx code.

We want a literal 0x86 in %ah for this int $0x15 delay,
not the value of the byte at 0x86.

branches: 1.6.14; 1.6.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.5.74; 1.5.76; 1.5.78;
merge ktrace-lwp.

Rename bootparams to boot_params for consistency.

Pick up X86_BOOT_MAGIC_* from bootblock.h
Move boot_params.S to lib (seems useful to use it in pxeboot).

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

branches: 1.1.2;
Add files for 2nd stage boot loader

undo the linker script hack now that the linker scripts do this.

Provide a boot ldscript that puts the text.unlikely section after the text
section so that boot_start gets placed first. We also set the entry and the
start address, although we still override them from the command line.
This is a copy of elf_i386.xbn

Reorder the names[] array to put the supported/historical entries
first. Should eliminate some unwanted and confusing messages.

branches: 1.89.2;
Historically (prior to supporting the KERNEL_DIR build option), the
boot-commands ``boot file'' and ``boot /file'' were equivalent and
attempted to execute the same set of files. (In the boot-loader,
all path (filename) lookups start at the root directory whether or
not a leading slash is present.)

However, with the recent addition of support for the KERNEL_DIR
option, the leading slash character resulted in skipping the attempt
to load /file/kernel and /file/kernel.gz, and thus the boot loader
will not attempt to boot from a new KERNEL_DIR environment if the
leading slash is present. This commit restores attempting to load
these files, thus making these two boot-commands once again equivalent
in both legacy and KERNEL_DIR environments..

Changes were tested on both i386 (biosboot/qemu) and amd64 (both
biosboot/qemu and efiboot/bare-metal). Correct behavior was observed
using the filenames printed by a preexisting printf(). The output
from ``boot'' commands without arguments was also confirmed to meet
expectations, and commands other than ``boot'' continued to work as
expected.

As discussed on tech-kern, port-i386, and port-amd64 mailing lists.
The more extensive documentation requested by riastradh@ should have
been dealt with more than five years ago with the initial KERNEL_DIR
commit; this commit doesn't pretend to meet that request. As noted
by kre@, the changes being made here are minor/trivial and highly
unlikely to break anything. These changes only affect booting in
new KERNEL_DIR environments; "legacy" environments are not affected.

Reverrt previous. I will recomit with proper log message.

/home/paul/COMMIT.txt

Allow the dev= command when processing /boot.cfg file. This
addresses kern/59207

Remove conditionals on KERNEL_DIR, and reorder the potential boot
locations to put the legacy ones first. This allows us to use a
single version of the bootstrap code regardless of the use of the
KERNEL_DIR build option, and should avoid spurious error messages
disrupting the automated testbeds.

Tested on i386 (non-KERNEL_DIR) and amd64 (both with and without
KERNEL_DIR). In all cases the anita installations succeeded and
the atf tests were initiated. Any remaining issues are most likely
due to subtle changes in text interaction and will probably need
updates to "expect" processing in anita.

If necessary this commit can be reverted, but please try to avoid
more churn, and update the testbed drivers as appropriate.
cvs: ----------------------------------------------------------------------

KNF - blank linebetween data and code

Also make sure we leave space in the path[] for a possible '.gz' to
be appended.

Both suggestions from kre@ - thanks

Update to pathnames for booting under KERNEL_DIR

Tested on i386 (wwithout KERNEL_DIR) and amd64 (both with and without)

Backout /filename/kernel changes, this breaks default installs
and needs more testing.

If only a filename is given on the boot command, try /filename/kernel
and /filename/kernel.gz, and then /filename to minimize differences
between old andnew recovery procedures. No change to ``naked'' boot
commands, nor to boot commands with pathname containing `;'

Instead of faking the kernel path in KERNEL_DIR, use proper entries in
the array. This has the advantage of producing correct error messages.

branches: 1.79.10;
Do not use default entry's parameters for for plain "boot" command

Go back to the "menu" instead of you want that.

Patch from RVP in PR 56862, ok uwe@

Remove banner printing code from bootloaders, add it to libsa.

This harmonizes efiboot and the various x86 bootloaders to use shared
code for printing the banner. By friendly coincidence, it also adds
support for specifying 'banner=' in arm efiboot's boot.cfg, as on x86.

use a single printf call for readability

biosboot: Add ASCII art.

Add "root" command to provide a BTINFO_ROOTDEVICE parameter.

branches: 1.74.6; 1.74.8;
Let consdev command also set speed

Adapted from PR install/55490 by Sunil Nimmagadda

Infrastructure for putting kernel+modules in /netbsd/kernel and
/netbsd/modules respectively instead of /netbsd and
/stand/<arch>/<version>/modules. This is only supported for x86,
and is turned off by default. To try it, add KERNEL_DIR=yes in your
/mk.conf and install a system from that build.

Make sure devices names are copied including last byte

Fix from M. Levinson.

Add GPT and RAIDframe support to bootloaders

Classic BIOS (/boot) and EFI bootloaders can now name devices
using the NAME=gpt_label syntax, or using raid partitions. Here
are examples:
boot NAME=root:/netbsd
boot raid0e:/netbsd

branches: 1.70.4; 1.70.8;
Add missing ).

Add pkboot in "help".

Reset has_prekern if pkboot fails. Otherwise here:
pkboot wrong_kernel_path
boot netbsd
the prekern still gets invoked in the second command.

Add a new option in libsa, to load dynamic binaries. A separate function
is used, and it does not break in any way the generic static loader. Then,
add a new "pkboot" command in the x86 bootloader, which boots a
GENERIC_KASLR kernel via the prekern. (See thread on tech-kern@.)

branches: 1.66.10;
PR/50748: David Binderman: check bounds before dereference

Also document the "splash" command in boot(8)

Restore previous behavior: "boot -s" == "boot netbsd -s"
Instead of ignoring the flags and doing the default boot. Merge some
extraneous code.
XXX: Find the PR for this, close it and pullup to -7

branches: 1.63.2; 1.63.4;
patch posted to tech-kern@ 2014/06/25 for review with minor changes
resulting from feedback.

move multiple copies of code for parsing boot.cfg file from sparc, i386
and zaurus into libsa/bootcfg.{h,c}. largely retained i386 parsing logic
in addition to keeping sparc dispatch function while remaining consistent
with boot.cfg(5).

previous sparc64 file format has been obsoleted but only used by boot
CDs distrib/sparc64/bootfs/boot.cfg has been updated to compensate.

exported names have been prefixed with either BOOTCFG_ or bootcfg_ as per
feedback from christos@

tested on amd64 & sparc64 but not zaurus.

branches: 1.62.2;
kill sprintf.

allow LS to be commented out

Add support for using a raw file-system image as memory disk root with
the x86 bootloader.

Two changes for the i386 boot loader related to the boot menu which
can be defined in boot.cfg:

* Add a "menu" command which re-displays the menu and initiates
the timed countdown
* Use any default command defined in boot.cfg as default args
if the user runs "boot" with no arguments

This is useful in circumstances where you e.g. need to interrupt
the normal boot process to switch to serial console, and where
simply "boot netbsd" is no longer sufficient (e.g. as with install
media which needs the miniroot kernel module loaded).

branches: 1.58.2; 1.58.4;
Fix i386 `boot' command to try the usual set of kernel names.

Without this, the `boot' command will try only `netbsd', not
`netbsd.gz', `netbsd.old', &c.

Patch from PR port-i386/44562.

branches: 1.57.2;
Apply the following patch submitted by Evgeniy Ivanov:
http://mail-index.NetBSD.org/tech-kern/2011/12/15/msg012226.html
http://mail-index.NetBSD.org/tech-kern/2011/12/17/msg012229.html

- add 'ls' op to struct fs_ops to support ls command on each fs,
enabled by -DLIBSA_ENABLE_LS_OP and SAMISCMAKEFLAGS+="SA_ENABLE_LS_OP=yes"
in libsa
- split sys/lib/libsa/ufs_ls.c into UFS specific part and MI part (ls.c)
that opens the target fs and calls fs-depedent XXX_ls() functions
- add a ls op for ext2fs
(all other fs than ufs and ext2fs don't have actual ls ops yet)
- replace existing MD ufs_ls() calls with this new MI ls()

The original patch was written for i386 and ext2fs.
zaurus zboot has been tested by nonaka@.
ews4800mips and x68k loaders have been tested by me (with several fixes).
landisk might be okay since it was almost copied from i386.

XXX1: "ls" op in fs_ops looks a bit inconsistent, but we will be able to
replace it with real fs ops like readdir if it's really worth
XXX2: someone might have to check sys/arch/ia64/stand/efi/libefi/efifs_ls.c

branches: 1.56.2;

Add support for passing saved entropy (random seed file) to the kernel
from the bootloader. This can fix the problem of poor quality keys
for other kernel modules which call arc4random() early in kernel startup
(NFS startup, in particular, causes this).

We continue to rely on the etc/rc.d/random_seed script to save entropy
to the seed file at shutdown and erase the seed file at startup.

Boot loader support implemented only for i386 and amd64 ports for now but
it should be easy for other ports to do the same or similar.

branches: 1.55.2;
cast a uint8_t * to a char * for a function that takes char *.

Support userconf(4) command in boot(8)/boot.cfg(5) on i386/amd64.

From jmmv@, no objections seen in the proposed thread:

http://mail-index.netbsd.org/tech-kern/2009/01/22/msg004081.html

Honor bp_timeout even if someone sets X86_BP_FLAGS_NOBOOTCONF.

add support for passing image files to the kernel with the 'splash' keyword:

vesa on;splash /netbsd.jpg;boot -z

branches: 1.51.2; 1.51.4;
Pass a 64-bit boot partition base LBA into x86 /boot,
while maintaining compatibility with existing bootxx code.

MI libsa provides panic() and exit() functions, no need to provide our own.
As MI libsa exit() calls panic() with a "exit" message, don't use it if we
print our own farewell or have already panic()ed.

Bring the help command output from boot and pxeboot on par with their
code.

branches: 1.48.2;
When a password is set for the bootloader ("installboot -o password=..."),
it currently complains about an unknown command and prints a usage if the
password is entered wrong:

...
Choose an option; RETURN for default; SPACE to stop countdown.
Option 1 will be chosen in 0 seconds.
Password: *
Password: *
Password: *
unknown command
commands are:
boot [xdNx:][filename] [-12acdqsvxz]
(ex. "hd0a:netbsd.old -s"
ls [path]
dev xd[N[x]]:
consdev {pc|com[0123]|com[0123]kbd|auto}
modules {enabled|disabled}
load {path_to_module}
multiboot [xdNx:][filename] [<args>]
help|?
quit

Choose an option; RETURN for default; SPACE to stop countdown.
Option 1 will be chosen in 0 seconds.
...

This is confusing, plus someone may use it to determine bits of
information about the system. What should happen instead is that the user
is informed that the password is wrong:

...
Choose an option; RETURN for default; SPACE to stop countdown.
Option 1 will be chosen in 0 seconds.
Password: ****
Password: ****
Password: ****
Wrong password.

Choose an option; RETURN for default; SPACE to stop countdown.
...

Implement the latter behaviour.

branches: 1.47.2;
Invert the flag bits to control module loading: rename
LOADMODULES->NOMODULES and READBOOTCONF->NOBOOTCONF.
This way, the default value (0) wired into old bootxx_* and installed
to file systems remains valid and we avoid problems on partial updates.

On i386/amd64, define two flag bits in the boot parameters which control
whether modules are loaded and whether boot.cfg is evaluated, and
set both to "off" per default in the PXE bootloader.
Extend "installboot" to toggle the bits.
This way, pxeboot works with existing dhcp server setups (and as
described in the manpage) out of the box. Also, boot.cfg reading
involves a stat() call which is horribly inefficient with the
TFTP pseudo file system.

Make the 'dev' command print out a list of known boot devices based on
information from the BIOS in addition to the currently selected default
partition. Handy when you don't know where to boot from. Here's a demo:

type "?" or "help" for help.
> dev
disk hd0 size 3815 MB
hd0a(4.2BSD) hd0b(swap)
disk cd0
cd0a(unknown)
default hd0a
>

Fix 'boot -z' bogons.

Bootloader modifications for generic framebuffer console support on i386
and amd64 where VESA VBE 2.0+ is available.

* Add helper library and stubs to invoke VBE bioscalls.
* Bump HEAP_START as we were already dangerously close to our limits.
* bootdataseg now allows access > 16MB so in the future we can scribble
on the framebuffer.
* Pass BTINFO_FRAMEBUFFER parameters to kernel when configured.
* VBE modes are configured with the new 'vesa' command. Usage, when present:
* vesa {enabled|disabled}
Enable / disable linear framebuffer, default mode is 640x480x8. May
be changed in the future to determine mode based on VBE/DDC where
available.
* vesa list
List modes supported by the firmware that meet the following criteria:
* linear framebuffer
* packed pixel or direct colour mode
* vesa {modenum|modestr}
Enable specific VBE mode. The mode can be specified either as a
VBE mode number (eg. 0x101) or as a string (eg. 800x600x16).

branches: 1.42.2;
merge christos-time_t

add a boot.cfg option to clear the screen; default off. From Anon Ymous

Make pxeboot understand boot.cfg.

For the x86 boot loader, autoload a kernel module corresponding to the
root file system type.

branches: 1.38.2; 1.38.4; 1.38.8;
Add "multiboot" command to boot multiboot compliant kernels like Xen.
Patch provided by Robert Swindell with fixes for the command line
parsing and addition of passing module options from me. The kernel now
always gets the full string for modules like for the command line,
everything before the first space/tab is the path name of the module.

Remove a hack which disables loading boot.cfg from ustarfs.
Now all bootfloppies have a proper boot.cfg file in ustarfs.

Tested on qemu.
(though qemu doesn't emulate timeout on the boot prompt properly)

The structure of our elf kernel is:

elf header/program headers/text/data/note/
section headers/symbol table/string table

We need to read the section headers first to find the offset of the note
and thus we requite backwards seek. The only reason we need to read the
note is to find the version of the kernel, and this seems not to be used
anywhere. We could potentially change the kernel ldscript to add the note
information in the program headers, but dealing with ldscripts is painful
and producing a more complex binary could break some dumb standalone loader.
So the simple solution is to just disable the note loading for floppies
which is what this patch does. If someone wants to fix it in a better way,
be my guest.

Fix display of "Option X will be chosen in" banner. The letter version of it
was always displayed even if number format was selected.

Increase number of menu options to 20.
Add support for switching menu format between numbers and letters. Will
prefer numbers, but will automatically switch to letters if > 9 options
and timeout > 0 (i.e. need a single key press to choose).
Menu format can be explicitly set in boot.cfg file.
Add support for reading numeric choices of more than 1 digit.

Don't run off the end of the bootconf.desc[] array when printing out
the boot menu choices. Fixes problems with funny display when MAXMENU
or more "menu" items are in /boot.cfg.

Change the x86 boot blocks so they don't include builder login and date.

For now, we include kernel revision as a way of allowing users to
notice that boot blocks have gotten very old, so the first line of the
printout looks like this (depending on the particular block):

>> NetBSD/x86 BIOS Boot, Revision 3.4 (from NetBSD 5.0)

This may be changed a bit pending feedback. (Some people think that
the kernel revision shouldn't be there at all, for example.)

Part of the project to assure that bit-identical sources produce
bit-identical release binaries.

branches: 1.31.2; 1.31.4;
- Stop the twiddler going awry.
- Clear screen if on a glass tty (!).

branches: 1.30.2;
Add a missing semicolon.
(mmm, compile before commit :)

Change the wording of a message, to make it clear that pressing SPACE
will stop the countdown timer. The message now reads "Choose an option;
RETURN for default; SPACE to stop countdown." It no longer says what
the default choice actually is, because the message printed on the
following line will do that.

Increase banner entries from 10 to 12. This allows all 12 lines of the cd
boot.cfg banner to be displayed.

Handle compressed modules.

Add support for multiple commands separated by semi-colons on menu lines
in boot.cfg.
e.g.
menu=Boot with module foo:load=/foo.kmod;boot

- Give x86 BIOS boot the ability to load new style modules and pass them
into the kernel. Based on a patch by jmcneill@, with many fixes and
improvements by me.

- Put MEMORY_DISK_DYNAMIC and MODULAR into the GENERIC kernels, so that
you can load miniroot.kmod from the boot blocks and boot into the
installer!

Tidy up console output slightly.

Adjust the help string for new options.

branches: 1.22.2; 1.22.4; 1.22.6;
Only attempt to output up to MAXBANNER banner lines

branches: 1.21.2; 1.21.6;
If a menu line in boot.cfg has an empty description, then re-use the
command as the description. For example,

menu=:boot netbsd -s

now works like

menu=boot netbsd -s:boot netbsd -s

Configuration file is boot.cfg, not boot.cnf, so fix comments

Add -z to usage strings.

Mention -x in command_help

Check whether we are loading from ustarfs and if so, do not attempt to
read boot.cfg.

Fixes PR install/37521. Heavily based on patch by Izumi Tsutsui.

branches: 1.16.2; 1.16.6;
Print a newline above the menu, but not below the custom banner.
This means that there is a consistent empty line above the menu both with
and without a custom banner.

Add support for /boot.cfg configuration file in x86 boot loader.
This allows easy configuration of banner text, console device and timeout
as well as allowing menus of commands to be displayed. If /boot.cfg
is not present, then the existing behaviour does not change.

The sections in the boot loader source are surrounded by #ifdef SMALL
allowing this functionality to be removed if space is at a premium.

branches: 1.14.2;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.13.8; 1.13.10; 1.13.14;
Fix "Fix a garbage in previous commit." in 1.10.

Hi, junyoung!

branches: 1.12.30; 1.12.32; 1.12.38;
merge ktrace-lwp.

branches: 1.11.2;
Add support for cd9660 file system to the i386 BIOS bootloader.

- It is worthless to endlessly try to boot unbootable images. If all predefined
boot images are failed to boot, fall into the prompt.
- Fix a garbage in previous commit.

More cosmetic changes.

- KNF & cosmetic changes
- Remove #if 0'ed netbsd.el{,.gz} from bootfile list. I have no idea what
those files are (emacs lisp source??? :-).

Cosmetic changes.

KNF & notably, use u_int rather than unsigned int for now for consistency.
This should be reversed eventually...

include sys/types.h to make this compile again.

branches: 1.4.4;
Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

Replace BP_* with I386_BP_FLAGS_*, for consistency with other stuff in
<sys/bootblock.h>
(CONSDEV_ should be converted as well, but that's more intrusive...)

rewrite an undefined assignment

branches: 1.1.2;
Add files for 2nd stage boot loader

PR/45796: Evgeniy Ivanov minixfs3 support.

branches: 1.5.38; 1.5.42;
Add commented out ext2fs definitions.

branches: 1.4.74;
merge ktrace-lwp.

Add support for cd9660 file system to the i386 BIOS bootloader.

remove license clauses 3 and 4 from my cpoyright notices

branches: 1.1.2;
Add files for 2nd stage boot loader

In-RAID partitions with no name can be candidate for booting

The code to select boot partition in RAID assumed thet had a name,
which is true when there is a GPT inside the RAID, but not when there
is a disklabel inside the RAID. This caused a regression from behavior
of NetBSD 8.1.

We fix this by allowing nameless partition to be boot candidates.
This fixes misc/54748

While there, let raid device be used in the boot specification, like
raid0a:/netbsd.

Add GPT and RAIDframe support to bootloaders

Classic BIOS (/boot) and EFI bootloaders can now name devices
using the NAME=gpt_label syntax, or using raid partitions. Here
are examples:
boot NAME=root:/netbsd
boot raid0e:/netbsd

branches: 1.8.52; 1.8.60; 1.8.64;
Sprinkle daddr_t.

branches: 1.7.14; 1.7.22;
- Give x86 BIOS boot the ability to load new style modules and pass them
into the kernel. Based on a patch by jmcneill@, with many fixes and
improvements by me.

- Put MEMORY_DISK_DYNAMIC and MODULAR into the GENERIC kernels, so that
you can load miniroot.kmod from the boot blocks and boot into the
installer!

Remove clause 3 and 4 from TNF licenses

branches: 1.5.74; 1.5.76; 1.5.78;
merge ktrace-lwp.

Add support for cd9660 file system to the i386 BIOS bootloader.

ANSI, KNF, de-__P, and various cosmetic changes.

remove license clauses 3 and 4 from my cpoyright notices

branches: 1.1.2;
Add files for 2nd stage boot loader

Add GPT and RAIDframe support to bootloaders

Classic BIOS (/boot) and EFI bootloaders can now name devices
using the NAME=gpt_label syntax, or using raid partitions. Here
are examples:
boot NAME=root:/netbsd
boot raid0e:/netbsd

branches: 1.4.52; 1.4.60; 1.4.64;
Sprinkle daddr_t.

branches: 1.3.92; 1.3.100;
merge ktrace-lwp.

Add support for cd9660 file system to the i386 BIOS bootloader.

branches: 1.1.2;
Add files for 2nd stage boot loader

x86/boot: fill in a bunch of missed changes and bump some versions.

missed features included:
- support for partition labels
- recursive labels inside RAID partitions
- booting a directory with kernel and modules
- multiBoot 2
- "root" command that changes default root
- "vesa" command to control graphical modes
- bi-endian support in disklabel, RAID and UFS
- fixes for buggy ACPI implementations
- fix PXE device path type
- fixes for buggy ACPI implementations
- serial console support with raw I/O accessors
- ASCII art

XXX: perhaps we could pullup some of these as minor version to release
branches but it seems extreme for a largely cosmetic issue. the
version across releases has a different build ID, so you can
already tell the difference between versions that changed.

branches: 1.17.40;
Bump bootloader version, support for booting KASLR amd64 kernels.

Bump bootloader version for memory disk image changes.

branches: 1.15.4; 1.15.14; 1.15.18;
Add VESA VBE/DDC EDID support for determining the monitor's preferred
video mode. "vesa on" will now select the preferred mode @ 8bpp if it can
be determined and is supported by the display adapter, otherwise it will
use 640x480 @ 8bpp.

add support for passing image files to the kernel with the 'splash' keyword:

vesa on;splash /netbsd.jpg;boot -z

branches: 1.13.2; 1.13.4;
Pass a 64-bit boot partition base LBA into x86 /boot,
while maintaining compatibility with existing bootxx code.

NetBSD/x86 BIOS Boot 5.6: now with GUID Partition Table support.

Note stack/heap changes made in revision 1.47 of Makefile.boot with version 5.5.

branches: 1.10.4;
Bump bootloader version for VBE changes.

branches: 1.9.4;
For the x86 boot loader, autoload a kernel module corresponding to the
root file system type.

branches: 1.8.2;
Add "multiboot" command to boot multiboot compliant kernels like Xen.
Patch provided by Robert Swindell with fixes for the command line
parsing and addition of passing module options from me. The kernel now
always gets the full string for modules like for the command line,
everything before the first space/tab is the path name of the module.

Update the version numbers following commit, and make them all identical.

branches: 1.6.2; 1.6.4; 1.6.6;
- Give x86 BIOS boot the ability to load new style modules and pass them
into the kernel. Based on a patch by jmcneill@, with many fixes and
improvements by me.

- Put MEMORY_DISK_DYNAMIC and MODULAR into the GENERIC kernels, so that
you can load miniroot.kmod from the boot blocks and boot into the
installer!

branches: 1.5.74; 1.5.76; 1.5.78;
merge ktrace-lwp.

Add support for cd9660 file system to the i386 BIOS bootloader.

Add support for passing booted wedge information to the kernel.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

branches: 1.1.2;
Add files for 2nd stage boot loader

merge ktrace-lwp.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

branches: 1.1.2;
Add files for 2nd stage boot loader

bootxx_cd9660 (cdboot), like bootxx_fat16 (fatboot), is not a traditional
libsa-based program. As such, build bootxx_cd9660 where its source lives.
This has been done by moving bootxx/bootxx_cd9660/Makefile to cdboot/Makefile
and adjusting the relative paths appropriately, so as to minimize binary change.

Build and install bootxx_ext2fs, primary boot for ext2fs.

Ext2fs doesn't have enough free space (it has only 1KB)
to store this primary loader, but we can put it into
an independent small 'boot' partition as NetBSD/hp300 does
if it's really necessary.

It could be a fun project to add smaller pre-primary loader
that loads ~8KB primary loader for ext2fs, but probably it's unlikely
because there is a functional wheel named GRUB for ext2fs.

Introduce .WAIT into the cleandir rule for blasting the libsa/libkern/etc.
trees, because it can race with the libsa/libkern/etc. makefiles' own
cleandir rules. I think I've found all of the uses of the offending idiom...
Closes PR 43360.

branches: 1.11.56; 1.11.70; 1.11.76; 1.11.78;
use "=" instead of ":=" where .OBJDIR is used because it might change
later in <bsd.obj.mk>, thanks to Alan Barrett for the hint

branches: 1.10.20; 1.10.22;
merge ktrace-lwp.

Ensure we don't build the libraries twice: move the .WAIT after
the first subdirectory that uses the libraries. That subdirectory
is bootxx_ffsv1, not bootxx_cd9660.

Build and install /usr/mdec/bootxx_cd9660, a primary boot loader
for ISO9660 filesystems.

branches: 1.7.12;
Need to use := when evaluating ${.OBJDIR}, then the correct value
is passed into the subdir builds and the 'lib' objects are correctly shared.
Fixes PR/26554

Add .WAIT after first subdirectory to ensure we don't build the libraries
twice.

Add bsd.obj.mk so these directories get their own obj directory (for the
library objects shared by their subdirectories).
Needed when the obj directory isn't a parent of the subdirectories obj directory

Change the way the shared lib directory is handled.
Should now work if ${.OBJDIR} = ${.CURDIR}/obj.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).

branches: 1.2.2;
Remove "lib" directory in "cleandir" target.

bootxx: bootstrap code - installable by MI installboot.
Loads /boot using filesystem accesses (rather than a list of block numbers)

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.

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.

Specify NOLIBCSANITIZER in x86 bootloader-like code under sys/arch/

Set NOLIBCSANITIZER for i386 and amd64 specific bootloader-like code.

branches: 1.50.2;
- Disable MKSANITIZER
- Redo using NOPIE
- Add NORELRO

branches: 1.49.16;
${PROG} depends on ${LDSCRIPT}.

branches: 1.48.6;
Reduce amount of -no-integrated-as on x86 as .code16 is now supported by
LLVM.

Add empty LIBCRTI= as LIBCRT0 to build sa programs without installed DESTDIR.

XXX: probabry we should have bsd.saprog.mk or something.

provide an ldscript to strip the unwind sections
XXX: untested

Add a missing KLINK_MACHINE= i386

Use <bsd.klinks.mk>

branches: 1.43.2; 1.43.4;
Don't depend on HAVE_GCC being always present.

branches: 1.42.2;
remove all the code that supported HAVE_GCC=3. mostly from chuq.

Refactor compiler-specific optimizer flags. Mark bootxx as supported
with clang.

branches: 1.40.2;
Disable integrated assembler for files that use .code16 or .code32 for
now. Disable Clang completely for bootxx and netboot for now until the
size issue has been sorted out.

branches: 1.39.2;
Introduce .WAIT into the cleandir rule for blasting the libsa/libkern/etc.
trees, because it can race with the libsa/libkern/etc. makefiles' own
cleandir rules. I think I've found all of the uses of the offending idiom...
Closes PR 43360.

branches: 1.38.2; 1.38.4;
Move relocation address to lower memory (0x1000) further away from the
BIOS 40:0 segment than previously but giving more room for heap that 0x8800.

Change relay address for mbr and bootxx code to be 0x8800.
I'm not sure why I used 0x600, but I have a feeling that might
sometimes corrupt bios data.
0x8800 is far enough above 0x7e00 for a sector read to the latter address.

Remove obsolete LIBSA_USE_MEMCPY and LIBSA_USE_MEMSET.
They were removed from <lib/libsa/stand.h> on December 2007.

Remove extra trailing slash in ${S} path.

Prefer MACHINE_ARCH to MACHINE in some tests

branches: 1.33.2; 1.33.8;
disable PIE for boot code.

Wrap compiler-specific flags with HAVE_GCC and HAVE_PCC as necessary. Add a few flags for PCC.

branches: 1.31.4; 1.31.6; 1.31.10;
Add -momit-leaf-frame-pointer, saves a few bytes.

branches: 1.30.2; 1.30.6;
Add EPIA_HACK so that boot loaders work on EDEN 5000 processors.
This worked in NetBSD 3, but broke by NetBSD 4.

My offer of a development machine to fix this one and for all is still open!

branches: 1.29.2;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

Remove -DBOOT_ELF64 to make build on amd64.

branches: 1.27.6; 1.27.14; 1.27.22; 1.27.24; 1.27.26;
Don't define UNALIGNED_ACCESS, it's not used anymore.

Add -DUNALIGNED_ACCESS here, libsa/dosfs.c seems to need it.
Probably it ought to come from some generic .h file, but I've no idea
which - nor if any existing define has the same effect.
In any case this saves oodles of bytes in bootxx_msdos.

branches: 1.25.2; 1.25.4;
nuke $DBG, since it contains -O2; suggested by uwe.

branches: 1.24.4; 1.24.6;
Use ${TOOL_STAT} to get the size, instead of ls | tr | cut.

Use -Wl,-Ttext,foo instead of -Ttext foo when using $(CC)

branches: 1.22.4;
Convert to using CC instead of LD, as LDFLAGS is for CC not LD.

support MAKEVERBOSE

- -mcpu=i386 is gone in GCC4
- we need -Wno-attributes (to avoid __packed__ warnings)
- use -Wno-pointer-sign
- remove some redundancy from pxeboot/Makefile

branches: 1.19.4; 1.19.6; 1.19.8; 1.19.12;
merge ktrace-lwp.

use a .BEGIN target to make the various symlinks,
the previous way had problems with parallel make.

branches: 1.17.2;
add dependall and realdepend to the targets that we need to call in the
beginning. XXX: The real fix (handle dependencies in .BEGIN) is forthcoming.

More .BEGIN lossage.

branches: 1.15.10;
More complete fix for overriding CPUFLAGS and also apply fix to bootxx,
from Valeriy Ushakov.

Ignore errors on some rm -rf's for platforms that aren't quite
POSIX compliant
and return errors on r/o source (FreeBSD) for -rf. Fixes PR#25022

branches: 1.13.2;
If a bootxx program already happened to be a multiple of 512 bytes in
length before padding, the shell command to conditionally pad it to
a multiple of 512 bytes returned a nonzero exit status, causing the
build to fail.

Instead of defining TERSE_ERROR by default (due to space constraints),
define NO_LBA_CHECK. bootxx_msdos still needs TERSE_ERROR because its
BPB is larger than the default.

Pick up X86_BOOT_MAGIC_* from bootblock.h
Move boot_params.S to lib (seems useful to use it in pxeboot).

Change the way the shared lib directory is handled.
Should now work if ${.OBJDIR} = ${.CURDIR}/obj.

Overhaul MBR handling (part 1):

<sys/bootblock.h>:
* Added definitions for the Master Boot Record (MBR) used by
a variety of systems (primarily i386), including the format
of the BIOS Parameter Block (BPB).
This information was cribbed from a variety of sources
including <sys/disklabel_mbr.h> which this is a superset of.

As part of this, some data structure elements and #defines
were renamed to be more "namespace friendly" and consistent
with other bootblocks and MBR documentation.
Update all uses of the old names to the new names.

<sys/disklabel_mbr.h>:
* Deprecated in favor of <sys/bootblock.h> (the latter is more
"host tool" friendly).

amd64 & i386:
* Renamed /usr/mdec/bootxx_dosfs to /usr/mdec/bootxx_msdos, to
be consistent with the naming convention of the msdosfs tools.

* Removed /usr/mdec/bootxx_ufs, as it's equivalent to bootxx_ffsv1
and it's confusing to have two functionally equivalent bootblocks,
especially given that "ufs" has multiple meanings (it could be
a synonym for "ffs", or the group of ffs/lfs/ext2fs file systems).

* Rework pbr.S (the first sector of bootxx_*):
+ Ensure that BPB (bytes 11..89) and the partition table
(bytes 446..509) do not contain code.
+ Add support for booting from FAT partitions if BOOT_FROM_FAT
is defined. (Only set for bootxx_msdos).
+ Remove "dummy" partition 3; if people want to installboot(8)
these to the start of the disk they can use fdisk(8) to
create a real MBR partition table...
+ Compile with TERSE_ERROR so it fits because of the above.
Whilst this is less user friendly, I feel it's important
to have a valid partition table and BPB in the MBR/PBR.

* Renamed /usr/mdec/biosboot to /usr/mdec/boot, to be consistent
with other platforms.

* Enable SUPPORT_DOSFS in /usr/mdec/boot (stage2), so that
we can boot off FAT partitions.

* Crank version of /usr/mdec/boot to 3.1, and fix some of the other
entries in the version file.

installboot(8) (i386):
* Read the existing MBR of the filesystem and retain the BIOS
Parameter Block (BPB) in bytes 11..89 and the MBR partition
table in bytes 446..509. (Previously installboot(8) would
trash those two sections of the MBR.)

mbrlabel(8):
* Use sys/lib/libkern/xlat_mbr_fstype.c instead of homegrown code
to map the MBR partition type to the NetBSD disklabel type.


Test built "make release" for i386, and new bootblocks verified to work
(even off FAT!).