Remove svn:mergeinfo carried over from stable/9.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r257532 (by adrian):

Fix this build for clang.

MFC r259730:

To avoid having to explicitly test COMPILER_TYPE for setting
clang-specific or gcc-specific flags, introduce the following new
variables for use in Makefiles:

CFLAGS.clang
CFLAGS.gcc
CXXFLAGS.clang
CXXFLAGS.gcc

In bsd.sys.mk, these get appended to the regular CFLAGS or CXXFLAGS for
the right compiler.

MFC r259913:

For libstand and sys/boot, split off gcc-only flags into CFLAGS.gcc.

MFC r259927:

Fix pc98 build, by also forcing COMPILER_TYPE in sys/boot/pc98/boot2's
Makefile.

Pointy hat to: dim

MFC r240780, r252468:
Make nfs_readdir() more careful about using response data, cached in global
buffer. For now it fixes bug when following `ls` command will return data
from previous one aborted by pager. Also it should allow to read several
directories same time, for example, for recursive tracerse.

MFC r240774:
Don't use global nfs_root_node variable as per-file storage. There are
fields that should be file-specific.

MFC r251561:

libstand: Reset the seek pointer in ext2fs as done in UFS.

Reset the seek pointer to 0 when a file is successfully opened,
since otherwise the initial seek offset will contain the directory
offset of the filesystem block that contained its directory entry.
This bug was mostly harmless because typically the directory is
less than one filesystem block in size so the offset would be zero.
It did however generally break loading a kernel from the (large)
kernel compile directory.

Also reset the seek pointer when a new inode is opened in read_inode(),
though this is not actually necessary now because all callers set
it afterwards.

PR: 177328
Submitted by: Eric van Gyzen
Reviewed by: iedowse

MFC: r235939: consitently use "__LP64__"

MFC r237410: zlib 1.2.7.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

- Removing some unneeded definitions of NULL(cruft related to 1970's C).
In C90, NULL is guaranteed to be declared in <stddef.h> and also in
<string.h>. Though the correct way to define NULL in FreeBSD is to
include <sys/_null.h>, other parts of libstand still require <string.h>
to build; therefore, we keep <string.h> in stand.h and add a note about
this;
- Removing no longer used 'Prototype' definition. Quote from bde@:

'Cruft related to getting incomplete struct declarations within
prototypes forward-declared before the structs. It doesn't mean
"prototype" but only part of a prototype-related hack. No longer
used.'

- Replacing iaddr_t with uintptr_t;
- Removing use of long double to determine alignment. Use a fixed 16 byte
alignment instead;

Reviewed by: bde
Obtained from: DragonFlyBSD (partially)
MFC after: 1 month

style(9) cleanup

Fixing building bustage on 32 bits platforms when WARNS >= 2. Note that
this fix only applies to zalloc.c, the other part of libstand such like
qdivrem.c still gives compilation warnings on sparc64 tinderbox builds;
therefore, WARNS level isn't changed for now.

Submitted by: Garrett Cooper <yanegomi@gmail.com>
Reviewed by: bde

Fixes to newer tftp code in libstand:
(1) Coding style changes.
(2) If the server does not acknowledge any blocksize option,
revert to the default blocksize of 512 bytes.
(3) Send ACK if the first packet happens to be the last packet.
(4) Do not accept blocksize greater than what was requested.
(5) Drop any unwanted OACK received if a tftp transfer is already
in progress.
(6) Terminate incomplete transfers with a special no-error ERROR packet.
Otherwise we rely on the tftp server to time out, which it does
eventually, after re-sending the last packet several times and spamming
the system log about it every time. This idea is borrowed from the
PXE client, which does exactly that.

Submitted by: Alexander Kabaev <kan@FreeBSD.org>
Reviewed and Tested by: Santhanakrishnan Balraj <sbalraj at juniper dot net>

Setting warnings without make universe considered harmful. Revert to WARNS=0
until such time that the warnings at =2 are fixed for all platforms.

Using the correct format string(%zu) for size_t type. This should fix 64
bits builds.

Submitted by: Garrett Cooper <yanegomi@gmail.com>

Unbreaking build on sparc64.

Submitted by: Garrett Cooper <yanegomi@gmail.com>

Bring back following change which was undone in previous commit:

------------------------------------------------------------------------
r172854 | marius | 2007-10-21 10:03:18 -0700 (Sun, 21 Oct 2007) | 16 lines
Changed paths:
M /head/lib/libstand/tftp.c

- Given that we tell the compiler that struct ip is packed and 32-bit
aligned, GCC 4.2.1 also generates code for sendudp() that assumes
this alignment. GCC 4.2.1 however doesn't 32-bit align wbuf, causing
the loader to crash due to an unaligned access of wbuf in sendudp()
when netbooting sparc64. Solve this by specifying wbuf as packed and
32-bit aligned, too. As for lastdata and readudp() this currently is
no issue when compiled with GCC 4.2.1, though give lastdata the same
treatment as wbuf for consistency and possibility of being affected
in the future. [1]
- Sprinkle const on a lookup table.
------------------------------------------------------------------------

Increase WARNS level to 2.

(1) When sending the TFTP RRQ packet to read a file,
send along the "blksize" option specified in RFC2348,
and the "tsize" option specified in RFC2349.

Add code to parse the TFTP Option Acknowledgement (OACK) packet as
specified in RFC2347.

For TFTP servers which support the "blksize" option, we can
specify a TFTP Data block size larger than the default 512 bytes
specified in RFC1350. This offers greater read performance when
downloading files.

We request an initial size of 1428 bytes, which is less than the
Ethernet MTU of 1500 bytes. If the TFTP server sends back an OACK
packet, then use the block size specified in the OACK packet.
Most times it is usually the same value as what we request.
If the TFTP server supports RFC2348, we will see performance improvements
by transferring files over TFTP with larger block sizes.

If we do not get back an OACK packet, then we most likely we
are interoperating with a legacy TFTP server that does not
support TFTP extension options, so default to the block size of
512 bytes.

(2) If the "tftp.blksize" environment variable is set, then
take that value and use it when sending the TFTP RRQ packet,
instead of 1428. This allows us to set different values of
"tftp.blksize" in the loader, so that we can test out different
TFTP block sizes at run time.

Obtained from: Juniper Networks
Fixed by: rodrigc

Currently tftp code in the loader retransmits the previous packet if it receives any
unwanted packet(non-tftp). Change this to retransmit the packet(request or ack) only after
a timeout.

Obtained from: Juniper Networks
Fixed by: Santhanakrishnan Balraj <sbalraj at juniper dot net>

Added sendrecv_tftp function instead of sendrecv for use by tftp.
In sendrecv_tftp:
* Upon receving an unexpected block of data or error, resend the ACK
immediately instead of waiting till the expiry of receive data timeout
to resend the ACK.
* change the receive timeout value between retries to be 2xMINTMO.

Obtained from: Juniper Networks
Fixed by: Santhanakrishnan Balraj <sbalraj at juniper dot net>

In sendrecv function, change the receive timeout value between retries
to increase in steps of MINTMO, instead of doubling the timeout for every
retry.

Obtained from: Juniper Networks
Fixed by: Santhanakrishnan Balraj <sbalraj at juniper dot net>

Obtain bswap64() function implementation from
version 1.3 of src/common/lib/libc/gen/bswap64.c in NetBSD.

Obtained from: NetBSD

Rename DEBUG macro to TFTP_DEBUG, to be more consistent with
debug macros in other files.

- Comment out unused variable.
- Add parentheses around expression to eliminate compiler warning.

Add #include <netinet/in_pcb.h> for missing forward declation of
struct inpcb.

Switch to ANSI function prototypes in a few places.
Get rid of some unused parameter warnings.

Fix typos - remove duplicate "the".

PR: bin/154928
Submitted by: Eitan Adler <lists at eitanadler.com>
MFC after: 3 days

On i386 and amd64, consistently use the following options whenever we
want to avoid using any "advanced" CPU features:

-mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float

In lib/libstand, sys/boot/ficl and sys/boot/zfs, -mno-sse3 should also
be used for amd64, not just for i386.

mdoc: drop redundant .Pp and .LP calls

They have no effect when coming in pairs, or before .Bl/.Bd

Increase maximum network timeout from 20s to 120s. Given that an ETIMEDOUT
return from sendrecv probably means a failure to boot we might as well be
generous in the timeout period.

Modify lib/libstand/nfs.c to use NFSv3 instead of NFSv2.
This allows the nfs_getrootfh() function to return the
correct file handle size to pxe.c for pxeboot. It also
results in NFSv2 no longer being used by default anywhere
in FreeBSD. If built with OLD_NFSV2 defined, the old
code that predated this patch will be built and NFSv2
will be used.

Tested by: danny at cs.huji.ac.il
MFC after: 2 weeks

MFtbemd:

Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want
to test of all the CPUs of a given family conform.

Use type-specific inline function imax() instead of deprecated macro MAX().

Prodded by: bde

Teach libstand what to do for powerpc64: the same thing as powerpc. Like
amd64, libstand apps for powerpc64 systems are 32-bit, due to 32-bit Open
Firmware implementations.

Fix build by defining MAX() macro here.

Sync. printf() of libstand(3) with sys/kern/subr_prf.c.

CVS r1.94 jhb:
Cast the integer read as the first argument for %b to an unsigned integer
so it's value is not sign extended when assigned to the uintmax_t variable
used internally by printf. For example, if bit 31 is set in the cpuid
feature word, then %b would print out the initial value as a 16 character
hexadecimal value. Now it only prints out an 8 character value.

CVS r1.109 njl:
Add support for 'h' and 'hh' modifiers for printf(9).

CVS r1.117 phk:
If we ignore an unknown % sequence, we must stop interpreting the remaining
% arguments because the varargs are now out of sync and there is a risk that
we might for instance dereference an integer in a %s argument.

SVN r209836 jkim:
Implement optional 'precision' for numbers. Previously, it was parsed but
ignored. Some third-party modules (e.g., APCICA) prefer this format over
zero padding flag '0'.

Use panic() (which the environment is required to provide to libstand) to
implement assert() instead of relying on a non-required exit(). The exit()
invocation also did not match the semantics of the exit() routine that
current boot environments happen to require.

PR: kern/144749
Discussed with: bde
MFC after: 1 week

Remove two pieces of code (one disabled in revision 39665 and another derived
from the first one) that is not used for the last 12 years.

fix a comment typo

MFC after: 3 days

Implement the fo_readdir method. This does not support long
file names.

Obtained from: Juniper Networks, Inc.
MFC after: 1 week

Build lib/ with WARNS=6 by default.

Similar to libexec/, do the same with lib/. Make WARNS=6 the norm and
lower it when needed.

I'm setting WARNS?=0 for secure/. It seems secure/ includes the
Makefile.inc provided by lib/. I'm not going to touch that directory.
Most of the code there is contributed anyway.

Fix a bug in gzipfs that prevented lseek() from working and add lseek()
support to bzip2fs. This fixes problems with loading compressed amd64
kernel modules containing debug symbols.

Submitted by: David Naylor naylor.b.david (gmail)
MFC after: 1 week

IP_TTL is an IP socket option, not a TTL value. Use IPDEFTTL
instead.

Initialize f_rabuf in the raw device case. A subsequent close()
later on would try to free it, leading to a crash.

PR: 93998
Submitted by: neel
MFC after: 1 week

ANSIfy, whitespace and comment adjustments, to simplify comparing these
files with NetBSD / OpenBSD versions.

Fix minor issues in libstand.

- Don't call tftp_makereq() with too many arguments.
- Don't forget to close one of the comments.

Submitted by: Pawel Worach

Use GCC's __SOFTFP__ to test whether we're being compiled
with softfloat or not. Now -msoft-float can be overridden
more easily.

Print the returned port number when RPC_DEBUG is defined.
This improves debugging.

Use, in uncovered part, the END() macro in order to improve debugging.
In this specific case, Valgrind won't get confused when analyzing such
functions.

Sponsored by: Sandvine Incorporated
Tested by: emaste
MFC: 3 days

Increase the number of available file descriptors to 64. This fixes the
reported zfsboot problems for systems where more than seven drives are part
of ZFS pools.

Fix an off-by-one buffer overflow in ngets().

Submitted by: Bruce Can
MFC after: 1 month

Fix build when WITH_SSP is set explicitly.

Submitted by: Jeremie Le Hen

put a prefix on dhcp options to avoid clobbering, even by mistake,
existing environment variables.

MFC after: 2 weeks

This main goals of this project are:
1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,

The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.

Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:

- Kip Macy revised the locking code completely, thus completing
the last piece of the puzzle, Kip has also been conducting
active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
me maintaining that branch before the svn conversion

Some libstand/bootp.c extension (written by Danny Braniss, slightly
revised/modified by me) to store dhcp options into kenv variables,
so the information is available to the boot loader and can be used
to customize the boot process.

The change is totally unintrusive, essentially made of a single
function to be called while parsing a dhcp response, and a couple
of tables to classify options. The values extracted from dhcp
options are stored in the kenv environment in one of these forms:

+ options whose name and type is known are saved as
dhcp.name = value (string, or number/ip addresses lists)

+ unknown options are assumed to be strings and saved as
dhcp.option-NNN = "value"

+ options listed as '__INDIR' and sent on the wire as e.g.
option unknown-252 "some.name=the actual value"
are saved as
some.name = "the actual value"

+ options listed as '__ILIST' and sent on the wire as e.g.
option unknown-249 "a.b=foo bar; c.d= 123; e.f=done"
are saved as multiple values
a.b="foo bar"
c.d="123"
e.f="done"

As you can see there is quite a bit of flexibility on what can
be passed to the loader or the kernel.

For the time being the vendor-specific table is mostly disabled,
because there is no standard set of options for FreeBSD, and I don't
know all the pxe-specific vendor options.

Also, applications using libstand may live in memory-constrained
environments, so it makes sense to keep these tables as small as
possible, especially considering that one can generate arbitrary
name=value pairs using site-specific options of type __INDIR or
__ILIST (there are 4 __ILIST and 5 __INDIR in the table, numbered
246..249 and 250..254).

Actually, considering that probably 75% of the standard dhcp options
are totally useless, it might make sense to remove them as well.

Submitted by: Danny Braniss
MFC after: 4 weeks

use the correct variable in a debug message.

Obey signedness flag in %z case.

MFC after: 2 months

Eliminate dead declarations in libstand.

Let libstand(3) build on ARM.

This is a pre-requisite for loader(8) + U-Boot support library on this arch.

Eliminate __alpha__ leftover from libstand.

Add the needed _setjmp.S for MIPS.

Obtained from: Juniper Networks

Enable GCC stack protection (aka Propolice) for userland:
- It is opt-out for now so as to give it maximum testing, but it may be
turned opt-in for stable branches depending on the consensus. You
can turn it off with WITHOUT_SSP.
- WITHOUT_SSP was previously used to disable the build of GNU libssp.
It is harmless to steal the knob as SSP symbols have been provided
by libc for a long time, GNU libssp should not have been much used.
- SSP is disabled in a few corners such as system bootstrap programs
(sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves.
- It should be safe to use -fstack-protector-all to build world, however
libc will be automatically downgraded to -fstack-protector because it
breaks rtld otherwise.
- This option is unavailable on ia64.

Enable GCC stack protection (aka Propolice) for kernel:
- It is opt-out for now so as to give it maximum testing.
- Do not compile your kernel with -fstack-protector-all, it won't work.

Submitted by: Jeremie Le Hen <jeremie@le-hen.org>

_setjmp.o was missing a dependency on "machine".

Don't forget to clean the "machine" symlink on amd64, otherwise bad
things may happen.

Reported by: phk
MFC after: 3 days

On i386, don't try to do network-type stuff if the device name is'nt pxeN.

Fix logical bug in the bzip2 reading code, which results in bogus EIO
returned on a perfectly valid bzip2 stream whose decompressed size
is multiple of read-ahead buffer size. Reproduce the problem is easy:
create some power-of-two sized file (truncate -s 1m file will do),
bzip2 it and try to load it as md_image from loader. See how it fails.

The bug doesn't affect gzip code (which most of bzip2-reading code was
copied from) probably due to the fact that libgzip doesn't report
Z_STREAM_END with the last block, but requires extra call to inflate()
to retrieve it and has some extra data in the input stream at that time.
However, apply similar fix to gzipfs.c just in the case the API will
change in the future to do what bzip2 code does.

Add some ifdef'ed code to enable testing bzipfs.c from witin normal
FreeBSD environment as opposed to the restricted loader one, so that
one can use gdb and whatnot.

Sponsored by: Sippy Software, Inc., http://www.sippysoft.com/
MFC in: 7 days

First cut at support for booting a GPT labeled disk via the BIOS bootstrap
on i386 and amd64 machines. The overall process is that /boot/pmbr lives
in the PMBR (similar to /boot/mbr for MBR disks) and is responsible for
locating and loading /boot/gptboot. /boot/gptboot is similar to /boot/boot
except that it groks GPT rather than MBR + bsdlabel. Unlike /boot/boot,
/boot/gptboot lives in its own dedicated GPT partition with a new
"FreeBSD boot" type. This partition does not have a fixed size in that
/boot/pmbr will load the entire partition into the lower 640k. However,
it is limited in that it can only be 545k. That's still a lot better than
the current 7.5k limit for boot2 on MBR. gptboot mostly acts just like
boot2 in that it reads /boot.config and loads up /boot/loader. Some more
details:
- Include uuid_equal() and uuid_is_nil() in libstand.
- Add a new 'boot' command to gpt(8) which makes a GPT disk bootable using
/boot/pmbr and /boot/gptboot. Note that the disk must have some free
space for the boot partition.
- This required exposing the backend of the 'add' function as a
gpt_add_part() function to the rest of gpt(8). 'boot' uses this to
create a boot partition if needed.
- Don't cripple cgbase() in the UFS boot code for /boot/gptboot so that
it can handle a filesystem > 1.5 TB.
- /boot/gptboot has a simple loader (gptldr) that doesn't do any I/O
unlike boot1 since /boot/pmbr loads all of gptboot up front. The
C portion of gptboot (gptboot.c) has been repocopied from boot2.c.
The primary changes are to parse the GPT to find a root filesystem
and to use 64-bit disk addresses. Currently gptboot assumes that the
first UFS partition on the disk is the / filesystem, but this algorithm
will likely be improved in the future.
- Teach the biosdisk driver in /boot/loader to understand GPT tables.
GPT partitions are identified as 'disk0pX:' (e.g. disk0p2:) which is
similar to the /dev names the kernel uses (e.g. /dev/ad0p2).
- Add a new "freebsd-boot" alias to g_part() for the new boot UUID.

MFC after: 1 month
Discussed with: marcel (some things might still change, but am committing
what I have so far)

- Given that we tell the compiler that struct ip is packed and 32-bit
aligned, GCC 4.2.1 also generates code for sendudp() that assumes
this alignment. GCC 4.2.1 however doesn't 32-bit align wbuf, causing
the loader to crash due to an unaligned access of wbuf in sendudp()
when netbooting sparc64. Solve this by specifying wbuf as packed and
32-bit aligned, too. As for lastdata and readudp() this currently is
no issue when compiled with GCC 4.2.1, though give lastdata the same
treatment as wbuf for consistency and possibility of being affected
in the future. [1]
- Sprinkle const on a lookup table.

Reported by: marcel [1]
Submitted by: yongari [1]
Reviewed by: marcel [1]
MFC after: 5 days

Optimize for size on pc98. It enables to boot a kernel again.

I don't know what's wrong (loader, boot2 or others), but this change is
effective.

Tested by: NAKAJI Hiroyuki
MFC after: 3 days

Cast away const qualifier to squash GCC warning.

Remove California Regent's clause 3, per letter

Instead of re-implementing hton[ls] and friends for each arch, add a new MI
file, net/ntoh.c, which just implement them using the inline functions from
<sys/endian.h>.

Suggested by: bde

Remove alpha left-overs.

Implement printf 'X' conversion for both libstand and kernel.

Fix prototypes.

Implement the full range of ISO9660 number conversion routines in iso.h.

MFC after: 2 weeks

Add -mno-sse3 for prescott/nocona

Match sys/boot in ensure GCC does not use x86 FP registers in integer code.

Submitted by: Pawel Worach <pawel.worach@gmail.com>

Back out revision 1.51, it is wrong. We don't litter -I's within lib
Makefiles to get headers from /usr/src vs. the standard include paths.

Use %z to print size_t values.

Just use uintptr_t and intptr_t rather than requiring each arch to provide
explicit int/long typedefs.

Make bzip2 support working again after bzip2 upgrade. This time commit
BZ_NO_COMPRESS support to the bzip2 sources directly (yes, this takes file
off the vendor branch, but looks like bzip2 maintainer doesn't care), so that
it will not be removed when the next upgrade is performed. Also, add a short
note on how to test bzip2 support.

Pointy hat to: obrien

Correct comment (libz -> libbz2) and remove useless full path to zutil.h
while I am here.

Add missed ${.CURDIR}/../../contrib/bzip2 into include search path, otherwise
old version of bzlib.h can be picked up from the /usr/include.

Remove unused variable. Shorten the path to WARNS=6 compliance.

Fix libstand on amd64. Rev 1.46 (obrien) removed the -I. that the
bzip2 support provided, and amd64 depended on. Amd64 has a custom
${.OBJDIR}/machine symlink in it and the -I. picked this up. Without
it, the libstand code was being compiled in 32 bit mode, but with 64 bit
machine headers.

Clean up an additional file.

Don't use a patch w/in /usr/src. Programmatically change files when needed.

Re-enable support for bzip2'ed compressed filesystems.

Temporarily disable support for bzip2'ed compressed filesystems, until a
maintainable why of handling them is created.

Sort sections.

Various markup and spelling fixes.

PR: 75574
Submitted by: Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp> (original version)

NODOCCOMPRESS -> NO_DOCCOMPRESS
NOINFO -> NO_INFO
NOINFOCOMPRESS -> NO_INFOCOMPRESS
NOLINT -> NO_LINT
NOPIC -> NO_PIC
NOPROFILE -> NO_PROFILE

For variables that are only checked with defined(), don't provide
any fake value.

Don't add integers to void pointers.

Prefer C99's __func__ over GCC's __FUNCTION__.

Reset the seek pointer to 0 when a file is successfully opened,
since otherwise the initial seek offset will contain the directory
offset of the filesystem block that contained its directory entry.
This bug was mostly harmless because typically the directory is
less than one filesystem block in size so the offset would be zero.
It did however generally break loading a kernel from the (large)
kernel compile directory.

Also reset the seek pointer when a new inode is opened in read_inode(),
though this is not actually necessary now because all callers set
it afterwards.

Bump the document date, since the content changed today.

Discussed with: ru

Fix a printf("%b", ..) example.

PR: 68849
Submitted by: Michel Lavondes <fox@vader.aacc.cc.md.us>
MFC after: 1 week

Eliminate double whitespace.

Mechanically kill hard sentence breaks.

Update libstand makefile for zlib 1.2.1.

Define iaddr_t and saddr_t for arm.

Import _setjmp.S for arm in libstand.

No reason to disable this test on powerpc.

Use signed char cast to avoid out-of-range error on PowerPC (which has
unsigned char by default). This is a no-op on all other current arches.

Tested by: md5 sum before/after same on i386

Clean up error handling in libstand filesystem code to be more consistent:
- bzipfs and gzipfs now properly return errno values directly from their
read routines rather than returning -1.
- missing errno values on error returns for the seek routines on almost
all filesystems were added.
- fstat() now returns -1 if an error occurs rather than ignoring it.
- nfs's readdir() routine now reports valid errno values if an error or
EOF occurs rather than EPERM (It was just returning 0 for success and
1 for failure).
- nullfs used the wrong semantics for every function besides close() and
seek(). Getting it right for close() appears to be an accident at that.
- read() for buffered files no longer returns 0 (EOF) if an error occurs,
but returns -1 instead.

- Move the code to try to open a single chunk file and prompt for the
associated floppy if needed into a static split_openfile() function.
- Use this function in splitfs_open() to open the first chunk rather
than using open() directly. This allows the first chunk to be located
on a different disk than the actual foo.split file.

Whitespace tweaks to make indentation consistent within this file and even
within a single function.

- Print out line number in a panic message using %d rather than %p. Line
numbers aren't pointers.
- Add a __printflike() attribute to libstand's panic() prototype to catch
such bogons in the future.

Removed duplicate SRCS.

Implement seeking to earlier offsets in gzipfs. This allows my loader
to e.g. correctly load all .ko.gz's I've tried, as opposed to messing
up trying to read section headers on some of them.

PowerPC-conditional changes:
- include ashldi3.c/ashrdi3.c from libc for UFS 64-bit arith
- pull in syncicache.c from libc, and define _STANDALONE for
loader usage

Preserve the constness of the value argument passed to env_setenv() as
it gets passed through the filter functions.

mdoc(7): Properly mark C headers.

bsd.lib.mk,v 1.143 no longer uses ld(1) directly to strip
symbols from intermediate object files, so these hacks to
get AMD64 compile are no longer needed.

Tested on: sledge.FreeBSD.org

Add amd64 build glue

Restore bzip2(1) support in loader(8) after Peter's renames of
malloc() to Malloc(), and free() to Free(), in zalloc_malloc.c.

Trust the code more than the comment(s) and correct some false
statements about pointer data type sizes, which spread probably
by copy-and-paste.

Sync up with kern/subr_prf.c. This adds %ll, %j, %q, %z, etc.

The .Fn function
The .Nm library

Fix a machine check abort caused by the EFI loader trying to open a
file in the NFS file system when the underlying device is not a
network device. A Sparc64 specific hack for this exact problem was
already present (nfs.c:1.9, tftp.c:1.10), but the problem is not
specific to Sparc64. The hack has been promoted to a non-i386 test
because on non-i386 architectures it's either impossible to have
non-network devices coexist in the same loader with the NFS FS, or
network and non-network device coexist and NFS filesystems can only
be used on top of network devices. I believe i386 pxeboot is where
this does not hold.

The root cause of this problem is in open.c where each file system
is tried until no more file systems exist or a file system returns
success. There's no notion of a list of valid file systems given
the underlying device and the non-existence of a file can cause
the invalid combination to be tried.

The zalloc pool's size calculation breaks if sbrk() does not return
contiguous chunks of memory. It happens to do so in the bootstrap
code, but not necessarily in other places.
MFC after: 7 days

Renamed the loader's zipfs to gzipfs. zipfs.c was repo-copied to gzipfs.c.

Uniformly refer to a file system as "file system".

Approved by: re

Capitalize ASCII code names.

Approved by: re

Update the second copy of libstand to deal with the new ufs2 superblock
format. The one in sys/boot/libstand is not connected to the build.

Approved by: re

Add the libz derived files, added in the previous commit, to
CLEANFILES. We were not cleaning up after ourselves.

Use the standardized CHAR_BIT constant instead of NBBY in userland.

o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
macros, which are only MD because of gratuitous differences between
architectures.
o Change all headers to make use of this. This mainly involves
changing:
#ifdef _BSD_FOO_T_
typedef _BSD_FOO_T_ foo_t;
#undef _BSD_FOO_T_
#endif
to:
#ifndef _FOO_T_DECLARED
typedef __foo_t foo_t;
#define _FOO_T_DECLARED
#endif

Concept by: bde
Reviewed by: jake, obrien

Fix a typo in #if 0 code

Stash various networking paramters in the environment for the kernel
to pick up, ala pxe.

Reimplement malloc/free debugging that includes the offending file:line
info. This turned out to be rather useful on ia64 for tracking down
malloc/free problems.
Detect duplicate free()'s - otherwise these show up as a guard1 failure
and it looks like corruption instead of something simple like a second
free() where there shouldn't be.
Deal with libz using libc headers and not seeing the malloc/free stuff that
we provide in libstand. Do similar nastiness to what is done for bzlib.

Tested on: i386, ia64 (compile, run)

Add __printflike() to printf() and sprintf() prototypes. -ffreestanding
turns off gcc's builtin attributes for these functions and as a result
-Wformat does no checking. (argh)

Add a hack (kludge?) to avoid trying to access files backed by disk
devices as though they were backed by network devices.

Ficl wants _setjmp and _longjmp. No need for weak symbols either.

To avoid anybody else getting caught out, these two files are really
in /sys/boot/common and are actually used there.

Update from NetBSD 1.3 -> 1.6. Most notable, rev 1.6:
"Make in_cksum work on little endian machines"

This would explain a few things. :-)

This commit adds basic support for the UFS2 filesystem. The UFS2
filesystem expands the inode to 256 bytes to make space for 64-bit
block pointers. It also adds a file-creation time field, an ability
to use jumbo blocks per inode to allow extent like pointer density,
and space for extended attributes (up to twice the filesystem block
size worth of attributes, e.g., on a 16K filesystem, there is space
for 32K of attributes). UFS2 fully supports and runs existing UFS1
filesystems. New filesystems built using newfs can be built in either
UFS1 or UFS2 format using the -O option. In this commit UFS1 is
the default format, so if you want to build UFS2 format filesystems,
you must specify -O 2. This default will be changed to UFS2 when
UFS2 proves itself to be stable. In this commit the boot code for
reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c)
as there is insufficient space in the boot block. Once the size of the
boot block is increased, this code can be defined.

Things to note: the definition of SBSIZE has changed to SBLOCKSIZE.
The header file <ufs/ufs/dinode.h> must be included before
<ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and
ufs_lbn_t.

Still TODO:
Verify that the first level bootstraps work for all the architectures.
Convert the utility ffsinfo to understand UFS2 and test growfs.
Add support for the extended attribute storage. Update soft updates
to ensure integrity of extended attribute storage. Switch the
current extended attribute interfaces to use the extended attribute
storage. Add the extent like functionality (framework is there,
but is currently never used).

Sponsored by: DARPA & NAI Labs.
Reviewed by: Poul-Henning Kamp <phk@freebsd.org>

Correct bswap64() prototype.

Submitted by: glewis
MFC after: 1 day
(assuming that there is re's approval)

Remove a URL from the middle of the BSD copyright (a clicko? a pasto?).
Fix typos:
s/evironment/environment
s/cont/const
s/_lonjmp/_longjmp

MFC after: 3 weeks

Use an explicitly-sized type instead of daddr_t for on-disk block
numbers.

UFS indirect blocks are size u_int32_t, not daddr_t

Add __divdi3() and __moddi3() to libstand. We will need them for UFS2.

Sponsored by: DARPA & NAI Labs.

#include <sys/disklabel.h> to get BBSIZE.

Added new bsd.incs.mk which handles installing of header files
via INCS. Implemented INCSLINKS (equivalent to SYMLINKS) to
handle symlinking include files. Allow for multiple groups of
include files to be installed, with the powerful INCSGROUPS knob.
Documentation to follow.

Added standard `includes' and `incsinstall' targets, use them
in Makefile.inc1. Headers from the following makefiles were
not installed before (during `includes' in Makefile.inc1):

kerberos5/lib/libtelnet/Makefile
lib/libbz2/Makefile
lib/libdevinfo/Makefile
lib/libform/Makefile
lib/libisc/Makefile
lib/libmenu/Makefile
lib/libmilter/Makefile
lib/libpanel/Makefile

Replaced all `beforeinstall' targets for installing includes
with the INCS stuff.

Renamed INCDIR to INCSDIR, for consistency with FILES and SCRIPTS,
and for compatibility with NetBSD. Similarly for INCOWN, INCGRP,
and INCMODE.

Consistently use INCLUDEDIR instead of /usr/include.

gnu/lib/libstdc++/Makefile and gnu/lib/libsupc++/Makefile changes
were only lightly tested due to the missing contrib/libstdc++-v3.
I fully tested the pre-WIP_GCC31 version of this patch with the
contrib/libstdc++.295 stuff.

These changes have been tested on i386 with the -DNO_WERROR "make
world" and "make release".

libstand needs _setjmp/_longjmp for FICL.

Submitted by: jake

Use -ffreestanding. It is REQUIRED by GCC 3.1 on all architectures.
I don't like putting this very-GCC centric option here; but no one as given
a better idea of handling it.

Reviewed by: jhb

Break the sparc64 build. I expect those that complained about this commit
to fix the sparc64 case to their liking.

sparc64 grew _setjmp/_longjmp.

Use -ffreestanding.

Remove __P() usage.

Remove 'register' keyword.

Kill debugging printf() slipped into my last commit.

Noticed by: jhb
Hall of shame entry: sobomax

Add -ffreestanding to CFLAGS for ia64. This should probably be global
like on the kernel.

Add splitfs vfs layer into libstand, which allows loading big kernels and
modules split across several physical medias. Following is how it works:

The splitfs code, when asked to open "foo" looks for a file "foo.split"
which is a text file containing a list of filenames and media names, e.g.

foo.aa "Kernel floppy 1"
foo.ab "Kernel floppy 2"
foo.ac "Kernel and modules floppy"

For each file segment, the process is:

- try to open the file
- prompt "Insert the disk labelled <whatever> and press any key..."
- try to open the file
- return error if file could not be located

RE team is free to use this feature in the upcoming 5.0-DP1.

Reviewed by: msmith, dcs

o Don't require long long support in bswap64() functions.
o In i386's <machine/endian.h>, macros have some advantages over
inlines, so change some inlines to macros.
o In i386's <machine/endian.h>, ungarbage collect word_swap_int()
(previously __uint16_swap_uint32), it has some uses on i386's with
PDP endianness.

Submitted by: bde

o Move a comment up in <machine/endian.h> that was accidentially moved
down a few revisions ago.
o Reenable userland's use of optimized inline-asm versions of
byteorder(3) functions.
o Fix ordering of prototypes vs. redefinition of byteorder(3)
functions, so that the non-GCC (libc asm) case has proper
prototypes.
o Add proper prototypes for byteorder(3) functions in <sys/param.h>.
o Prevent redundant duplicate prototypes by making use of the
_BYTEORDER_PROTOTYPED define.
o Move the bswap16(), bswap32(), bswap64() C functions into MD space
for platforms in which asm versions don't exist. This significantly
reduces the complexity of some things at the cost of duplicate code.

Reviewed by: bde

Add the following functions/macros to support byte order conversions and
device drivers for bus system with other endinesses than the CPU (using
interfaces compatible to NetBSD):

- bwap16() and bswap32(). These have optimized implementations on some
architectures; for those that don't, there exist generic implementations.
- macros to convert from a certain byte order to host byte order and vice
versa, using a naming scheme like le16toh(), htole16().
These are implemented using the bswap functions.
- stream bus space access functions, which do not perform a byte order
conversion (while the normal access functions would if the bus endianess
differs from the CPU endianess).

htons(), htonl(), ntohs() and ntohl() are implemented using the new
functions above for kernel usage. None of the above interfaces is currently
exported to user land.

Make use of the new functions in a few places where local implementations
of the same functionality existed.

Reviewed by: mike, bde
Tested on alpha by: mike

o Move NTOHL() and associated macros into <sys/param.h>. These are
deprecated in favor of the POSIX-defined lowercase variants.
o Change all occurrences of NTOHL() and associated marcros in the
source tree to use the lowercase function variants.
o Add missing license bits to sparc64's <machine/endian.h>.
Approved by: jake
o Clean up <machine/endian.h> files.
o Remove unused __uint16_swap_uint32() from i386's <machine/endian.h>.
o Remove prototypes for non-existent bswapXX() functions.
o Include <machine/endian.h> in <arpa/inet.h> to define the
POSIX-required ntohl() family of functions.
o Do similar things to expose the ntohl() family in libstand, <netinet/in.h>,
and <sys/param.h>.
o Prepend underscores to the ntohl() family to help deal with
complexities associated with having MD (asm and inline) versions, and
having to prevent exposure of these functions in other headers that
happen to make use of endian-specific defines.
o Create weak aliases to the canonical function name to help deal with
third-party software forgetting to include an appropriate header.
o Remove some now unneeded pollution from <sys/types.h>.
o Add missing <arpa/inet.h> includes in userland.

Tested on: alpha, i386
Reviewed by: bde, jake, tmm

Fixed world breakage in previous commit. The generated headers are in
the current directory which is rarely ${.CURDIR}.

Complete bzip2-1.0.2 import.

MFC in: 14 days

We support writing to at least one filesystem now.

PR: kern/32389
Submitted by: Jonathan Mini <mini@haikugeek.com>
Sponsored by: ClickArray, Inc.

Add support for overwriting the existing contents of a file to the UFS
driver in libstand. This specifically does not expand or truncate files
since the filesystem may be dirty or inconsistent.

PR: kern/32389
Submitted by: Jonathan Mini <mini@haikugeek.com>
Sponsored by: ClickArray, Inc.

Back out my 'fix', resid is different for strategy than for write

Make the same fix for writes to RAW objects.

write should return the number of bytes written, not 0 on success.

Submitted by: Jonathan Mini <mini@haikugeek.com>
PR: kern/32350

- Change the f_isdir field of struct file to be a flags field and two
new flags: F_ROOTDIR and F_RR (Rock Ridge present).
- Cache the SUSP LEN_SKP parameter in struct file as well.
- If we open() '/', then force a read of the directory's contents so we
can examine the directory record of '.' to see if Rock Ridge is present.
- If Rock Ridge extensions are present, lookup Rock Ridge names in
readdir().

- Add a simple SUSP parser.
- Use the SUSP parser to detect Rock Ridge (RRIP) extensions and to look
up alternate names when opening files.

Switch to using ANSI function declarations and add missing function
prototypes. I'm tired of getting stupid bugs from changing function
parameters and not getting warnings from the compiler when I goof it up.

Make the output from assert() look more like the example in the C99
standard.

Requested by: bde

Only provide function information in compile environments that support
the C99 variable __func__ and never for C++. Provide a more meaningful
example in the assert(3) manual.

Reviewed by: asmodai, bde

Remove the -I../libc/${MACHINE_ARCH} that was there solely for
the #include "DEFS.h" that was only used on i386 (which has been fixed).

Change #include "DEFS.h" to <machine/asm.h>.

Add __FBSDID.
Change __assert() function to print failing function name.
This makes us C99 conforming.

Make this Makefile suitable for sparc64.

Define the types iaddr_t and saddr_t for sparc64.

Compensate for "Compensate for header dethreading" by backing it out.

mdoc(7) police: Use the new .In macro for #include statements.

mdoc(7) police: markup nits.

Add __FBSDID()s to libstand

Add support for loading bzip2-compressed filesystems. Among other things
this would allow to load bzip2-compressed kernels/modules from the loader(8)
(support for that will be committer separately).

MFC after: 1 month

Remove bogus implementation of _setjmp/_longjmp

Check for malloc failure in a couple of cases

MFC after: 2 weeks

Fix a bug in lseek which caused the loader to fail on some gzipped
kernels. The error message was "elf_loadexec: cannot seek".

Libstand maintains a read-ahead buffer for each open file, so that
it can read in chunks of 512 bytes for greater efficiency. When
the loader tries to lseek forward in a file by a small amount, it
sometimes happens that the target file offset is already in the
read-ahead buffer. But the lseek code simply discarded the contents
of that buffer and performed a seek directly on the underlying
file. This resulted in an attempt to seek backwards in the file,
since some of the data has already been read into the read-ahead
buffer. Gzipped data streams cannot seek backwards, so an error
was returned.

This commit adds code which checks to see if the desired file offset
is already in the read-ahead buffer. If it is, the code simply
adjusts the buffer pointer and length, thereby avoiding a reverse
seek on the gzipped data stream.

I incorporated a suggestion from Matt Dillon which saved a little
bit of code in this fix.

Reviewed by: dillon, gallatin, jhb

Bail if we go beyond the directory size, not just if we hit it.
Certain ISO fs's (like the one for 4.4-RC1 disc1 on alpha)
trigger this, and we end up opening a null file name. This causes us to get
a false match for "kernel.ko" when it does not exist.

mdoc(7) police: s/BSD/.Bx/ where appropriate.

Spell "FreeBSD" with "F" and "BSD" in uppercase.

Removed duplicate VCS ID tags, as per style(9).

Make include file consistent with the rest of libstand.

Remove whitespace at EOL.

mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: remove extraneous .Pp before and/or after .Sh.

Reset errno so that subsequent TFTP requests don't fail after the
first failure.

PR: misc/25502
MFC after: 2 weeks

Correct the returned UDP datagram length. See the PR for a more comprehensive
description of the fix.

PR: misc/25503
Submitted by: Jim Browne <jbrowne@jbrowne.com>
MFC after: 1 week

The shortest valid TFTP packet is 4 bytes, not 8.

PR: misc/25503
Submitted by: Jim Browne <jbrowne@jbrowne.com>
MFC after: 1 week

Replace functional bugs of ctypish functions in libstand with style
bugs.

reviewed by: bde
MFC after: 1 week

Compensate for header dethreading.

Unbreak world by defining isalnum() for libstand consumers.

fix cd9660 to work on files larger than ISO_DEFAULT_BLOCK_SIZE and unbreak
cdboot on alphas (which has been broken since just after 4.0-RELEASE)

submitted by: jlemon

MAN[1-9] -> MAN.

A quick and dirty port of libstand to ia64.

Prepare for mdoc(7)NG.

Correct the prototype for pager_output().

Silence -Wnon-const-format

Fix typo: compatability -> compatibility.

Compatability is not an existing english word.

mdoc(7) police: split punctuation characters + misc fixes.

mdoc(7) police: removed leading whitespaces that are not inside
Bd/Ed; these hardly degrade the quality of the produced output.

Prepare for mdoc(7)NG.

mdoc(7) police: removed history info from the .Os FreeBSD call.

When TFTP tries to open a file, it is expecting struct open_file
member f_devdata to be a pointer to a socket number. When currdev
is "pxe", that assumption is correct. When currdev is "disk*", that
assumption is incorrect.

Submitted by: Jim Browne <jbrowne@jbrowne.com>

Disable the end guard for now.

The test for failing the end guard was always triggering (and was reported as
such in compiler warnings). This is a temporary band-aid until I can work
out what's really going on.

Reviewed by: obrien

Make setjmp work our way, as opposed to NetBSD's.

This file needs commenting still.

Submitted by: luoqi
Reviewed by: obrien

Don't always enable debugging for the network device code.

Reviewed by: obrien

Honor the ip address given in the root-path dhcp option.

PR: 21743
Submitted by: Brian Candler <B.Candler@pobox.com>

Inital PowerPC loader build support.

Submitted by: Benno Rice <benno@jeamland.net>

Fix the embeded VCS ID for FreeBSD vs. NetBSD.

Architecture-specific setjump()/longjmp() bits for the PowerPC
needed by the loader.

Submitted by: Benno Rice <benno@jeamland.net>
Obtained from: NetBSD (Wolfgang Solfrank <ws@@tools.de>)

IN_CLASS*() macros assume host order and s_addr is network byte
order, so we must convert them to host order.

Turn dkcksum() into an __inline function.

Change its type to u_int_16_t.

Backout last commit. It was wrong.. *sigh*

include string.h to silence a warning.

Expose the NFS root node, so that an evil consumer can use it to get the
NFS filehandle for the root mount.

Implement readahead buffering for non-raw files. This drastically improves
the efficiency of byte-by-byte read operations on filesystems not already
supported by the block cache (especially NFS).

This should be a welcome change for users booting via PXE, as the loader
now reads its startup files almost instantly, instead of taking tens of
seconds.

Make libstand compile

Add the -mpreferred-stack-boundary=2 option to reduce code bloat. We
compile the kernel with this.

Add support to send the string 'PXEClient' as the Vendor class
identifier to the DHCP server. Now you can check for this string
in your dhcp configuration to decide whether you will hand out a
lease to the client or not.

Cleanup warnings by adding missint prototypes, removing unneeded duplicate
prototypes, and adding in several 'const's. Also, add some missing
$FreeBSD$'s.

Found by: BDECFLAGS

Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by: msmith and others

Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by: phk
Reviewed by: phk
Approved by: mdodd

Fix the real problem that broke the Alpha loader this last week. It
was not the fault of the module code, nor FICL. The malloc code requires
sbrk() to return addresses that were at least 16 byte aligned. If the
Alpha loader happened to be 8 byte but not 16 byte aligned in length, then
you would get a zfree() panic at startup.

Incidently, this affected the i386 loader as well, and explains why
the static heap changed things and why jlemon had trouble when the bss
was not ending at a multiple of 8 bytes.

My fix is to 16 byte align it on all arches, even though the x86 version
only required 8 byte alignment (struct MemNode is smaller there). We could
page align it if we wanted to be paranoid, but it isn't presently necessary.

We compile expressly on the alpha with -mno-fp-regs - so do not use them
explicitly here. This was the original cause of instruction faults on
the Alpha in loader. (not this code, but the same problem in libficl.a)

Fix comment.

Add readdir support to the NFS filesystem in libstand.

Do not attempt to free a nfs node if it is the root node. The root
node is statically allocated and is not guarded, so free will panic
in nfs_close.

Add a readdir function to the loader fsops vector, and implement the
functionality for some of the filesystesms.

Add ext2fs support to the loader.

Add a cleanup function. This is needed for PXE where you should
shutdown the UNDI and unload the stack.

Break out sendudp and readudp from net.c. This is for PXE, so it
can use its own UDP interface.

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

trailing white space removal.

Add two new functions cd9660_readfile() & cd9660_readdir(), which
cd9660_read() now uses to read CDROMs. With these changes FreeBSD/Alpha
can now boot from a bootable CDROM.

Submitted by: dfr

Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"
is an application space macro and the applications are supposed to be free
to use it as they please (but cannot). This is consistant with the other
BSD's who made this change quite some time ago. More commits to come.

Use the ctype.h version of isascii() - it doesn't loose precision and think
that 0x100 (int) is an ascii character.

Submitted by: bde

Tidy up some loose ends. nullfs_read/write were returning the wrong value.
Fix some ctype problems - isascii() caused a warning if fed an unsigned
char - it's always > 0 and libstand is compiled with -Wall.
Missing prototype/include in printf.c

longjumperror() and abort() don't exist in libstand.. Don't test
for a condition we can't handle (like the x86 longjmp). This was
highlighted by attempting to build FICL into the alpha loader.

Change toupper/tolower so that they don't give a bogus answer if the
argument is already upper/lower.

$Id$ -> $FreeBSD$

More egcs warning fixes:
o use braces to avoid potentially ambiguous else
o don't default to type int (and also remove a useless register
modifier).
o Use parens around assignment values used as truth values.
o Remove unused function.

Reviewed by: obrien and chuckr

Don't build with -g. The a.out egcs can't handle it at the moment.
This seems to have snuck back into the Makefile in an unrelated
commit (rev. 1.8).

Remove float-point dependency from i386's version of setjmp()/longjmp().

Copy _setjmp.S from libc in preparation for loader-specific version.

Oops. Missed this in the last commit.

Submitted by: Daniel C. Sobral <dcs@newsguy.com>

POSIX introduced optreset to deal with multiple invocations
of getopt (as in, multiple input lines :). This is documented in the
man page and is used in the code, but unistd.h and stand.h do not
declare it. Incidentally, it prevents me fixing a bug in loader's
code... :-)

PR: misc/9373
Submitted by: "Daniel C. Sobral" <dcs@newsguy.com>

Remove stray .endif from previous commit (I hope this is right)

Don't need this one anymore.

Well I never. Seems like _setjmp()/_longjmp() are just what the doctor
ordered. This brings the Alpha back to parity, and should bring us
BootForth on both platforms.

Submitted by: John Birrell (jb@freebsd.org)

Improve the quality of isspace() to match expectations. This should make
the Ficl interpreter read its softwords array OK.

Don't try to build (nonexistent) Alpha setjmp until we have one.

Move setjmp/longjmp implementations here from libc; no signal handling
in libstand, only for i386 until I locate an alpha setjmp/longjmp.

Minimal 64-bit gcc integer support for i386. This is kinda nasty, and
should be revisited once we decide whether the bootblocks need
quad arithmetic.

Add:
assert()
setjmp()/longjmp()
vsprintf()

Add a new field to the devsw structure; dv_print, to print all valid units
etc. associated with the device entry.
Consider EOF an 'error' for fgetstr if we haven't read anything yet.

You *MUST* recompile and reinstall libstand before rebuilding the bootstrap.

Implement a hook to allow us to reclaim the memory used by the first stage
of the bootstrap (the bit which loads /boot/loader).

To clarify last commit, msmith says:
The reason the Alpha has less room than the i386 is because the bootstrap
is given a 256K mapping by the firmware; to add more requires extra work.

Reduce the sbrk() increment from 64K to 4K. There's not much room on the
Alpha, and wasting potentially 64K-4 bytes of RAM just isn't an option.

Add strcasecmp source file required for dosfs operation.

Enable the DOS filesystem. This allows reading from various DOS filesystems
(FAT12/16/32, VFAT).

Make a private copy of strcasecmp, as the "real" one uses the system ctype
header, which introduces locale poisoning.

Don't build with -g.

Prune unused zalloc components as recommended by Matt Dillon. Extra debugging
code is still enabled (it's not very expensive).

* Enable old UFS compatibility code for booting from Digital Unix formatted
disks.
* Fix a whole raft of warnings, printf and otherwise.
* Make zalloc work for alpha (just a case of using the right typedef).
* Add some (disabled) malloc debug printing to stand.h.

Fixed setting of mp_End in zextendPool(). A case was missing and mp_Size
no longer reflects the mp_End - mp_Base equivalent.

Replace the old and extremely icky Mach/NetBSD allocator with a similarly
compact and much better one donated by Matt Dillon. Implement a simple
sbrk() which uses the existing setheap() api.

Remove the custom allocator from the UFS code. It wasn't working quite
right, and it shouldn't be needed with the new allocator.

Fix a serious problem with changing the value of already-existent
environment variables. Don't attempt to modify the supposedly-const
argument to putenv()

Fix an off-by-one sizing error in the zipfs code detected by the new
allocator.

Submitted by: zmalloc from Matt Dillon <dillon@backplane.com>

Use unsigned chars instead of signed chars when extracting bits of the
inet address.

Include "stand.h", not <stand.h>.

Allocate disk buffers using a custom allocator. The standard allocator fragments
extremely badly if disk buffers are freed back into the main heap and the alpha
bootstrap has a restricted address space which just ran out :-(.

Use a simple version of inet_ntoa(). The libc one uses inet_ntop which is too
complicated.

Nuke prototype for strerror, consumers get it from <string.h>
Fix overlooked nullopen() implementation.

Path arguments to *_open functions should be const, but we were mangling
them.

Submitted by: write-protected text segment in BTX

Remove (wrong) OBJFORMAT setting.

Add support for reading directories as files.
Sort out fs_ops, alloc/free.

Fixed syntax errors (__dead should have gone away years ago, and
__attribute__(()) is a gccism - we use __dead2).

Install libstand header <stand.h> and manpage (libstand.3)

This commit was generated by cvs2svn to compensate for changes in r38451,
which included commits to RCS files with non-trunk default branches.

This is libstand; a support library for standalone executables (eg. bootstrap
modules).
Obtained from: NetBSD, with some architectural changes and many additions.