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1141 Commits

Author SHA1 Message Date
matt
4a33fdce54 Actually the right instruction to fill a half-word. 
From Juergen Hannken-Illjes hannken at eis dot cs dot tu-bs dot de
 2003-08-27 17:37:43 +00:00
dsl
db4706faf9 Reduce memory footprint: 
- use file buffer for all block reads
- only save a small amount of the indirect block list
Allows i386 bootxx_ufs code to load /boot from a filesystem with 32k blocks
while still fitting inside 64k of memory.
Code size reduced as well (by ~1k on i386).
It ought to be possible to use a buffer that is smaller than a filesystem
block.  This might be needed in order to boot from filesystems with larger
block sizes.
 2003-08-22 21:33:52 +00:00
elric
72e3ec4b0c Should call ufs_close() if it isn't being built in. 2003-08-21 00:01:28 +00:00
elric
2a56d40c5c make 'path' argument to cd9660_open 'const char *' and fix the fallout. 2003-08-21 00:00:52 +00:00
itojun
1403d9d920 KNF 2003-08-20 13:32:33 +00:00
ragge
a9e5513c6b Kerner library files for pdp10. 2003-08-19 10:59:26 +00:00
dsl
8453fb0040 make 'path' argument to ufs_open 'const char *' and fix the fallout. 2003-08-18 15:45:27 +00:00
dsl
d678060c05 KNF, fix a comment or two 2003-08-18 08:00:52 +00:00
ragge
bc830a1980 Do not use the builtins for the mem* functions on vax, the compiler gets 
confused with the static inline functions vax uses.
 2003-08-13 11:34:24 +00:00
ragge
f69577d50c Include the C versions of the string instructions. 
Replace blkcpy() with a version that can handle overlapping data areas.
 2003-08-13 11:32:23 +00:00
matt
f70606090a Add a memset.S (does not use dcbz; to be added later). It does both bzero 
and memset.
 2003-08-10 21:17:08 +00:00
martin
785cae7ed0 Sync with userland version. 2003-08-10 14:20:03 +00:00
agc
aad01611e7 Move UCB-licensed code from 4-clause to 3-clause licence. 
Patches provided by Joel Baker in PR 22364, verified by myself.
 2003-08-07 16:26:28 +00:00
scw
5d91e08442 In lookup(), don't free "dir" on exit if we found a matching entry. 
Otherwise the caller ends up with a pointer to free'd memory...
 2003-07-15 13:27:07 +00:00
dsl
f92748a3e8 Add xlat_mbr_fstype - converts mbr type to disklabel type 2003-07-07 13:20:17 +00:00
martin
34718fb25a Protect opt_*.h include by _KERNEL_OPT 2003-06-23 14:17:24 +00:00
martin
d505b18964 Make sure to include opt_foo.h if a defflag option FOO is used. 2003-06-23 11:00:59 +00:00
briggs
b2566d8735 Provide a strtoul() implementation based on the one in libc instead of the 
totally different version that was here.  This version, of course, has an
BSD license on it while the old one did not.  This one also compiles down
to tighter code--the smaller the better for libkern & libsa.
 2003-06-07 02:52:33 +00:00
itojun
da3884cbf4 latest copyright notice (more loose). noted by wiz 2003-05-15 15:02:52 +00:00
itojun
99c5869d56 add strl{cpy,cat} to libkern. code from lib/libc/string (originally from openbsd). 2003-05-15 13:50:35 +00:00
scw
3722390978 Allow the default location of "machine/loadfile_machdep.h" to be 
overridden if MACHINE_LOADFILE_MACHDEP is defined.
This makes life much simpler in the face of the myriad of
different boot options for the evb* ports.
 2003-04-29 13:03:55 +00:00
tron
e71f089777 Remove two unused variable to fix a build problem. 2003-04-27 11:12:14 +00:00
bjh21
01f90db242 Remove %b support. 
Encouraged by thorpej.
 2003-04-26 13:25:47 +00:00
christos
abfff333c3 don't define TRUE and FALSE locally. 2003-04-22 15:10:04 +00:00
bjh21
2456c80578 If the format string ends with "%" or "%l", print those characters, just 
as we would if they were part of an invalid conversion specification.
Code-size neutral on ARM; not tested elsewhere.
 2003-04-20 22:23:59 +00:00
bjh21
94c13ff2cd ANSIfy, assume __STDC__, un-__P, KNF. 
Generated code unchanged.
 2003-04-20 19:31:29 +00:00
dsl
35632a80ac lfs code is built from ufs.c 2003-04-16 19:52:58 +00:00
dsl
c327a133c6 Significantly faster memcpy/memmove/bcopy and memset/bzero 2003-04-15 22:49:50 +00:00
dsl
7c8e4cdaea Add interface to boot password checking code that takes password parameter. 2003-04-15 22:26:42 +00:00
dsl
4efa73a16e Build ffsv1 and ffsv2 2003-04-11 11:31:44 +00:00
dsl
ef32565239 Add externs for ffsv1_xxx and ffsv2_xxx 2003-04-11 11:30:12 +00:00
dsl
f671893500 Files to build ffsv1 and ffsv2 versions of ufs.c 2003-04-11 11:28:54 +00:00
dsl
af3660bcdb Use common ffs/lfs file ufs.c instead of lfs specific version. 2003-04-11 11:27:06 +00:00
dsl
5a0534abeb Merge in lfs.c, use defines to build ffsv1, ffsv2, lfsv1 or lfsv2. 
(removes the ability to build a single ufs.o that supports ffs v1 and v2,
that animal was too large for some of the boot code.)
Use shifts and masks to avoid pulling in 64bit divide.
 2003-04-11 11:24:49 +00:00
dsl
fbf4bd0cfe Put extern definition of bcopy in () to avoid macro expansion when 
LIBSA_USE_MEMCPY is defined. Fixes breakage because the return
type of memcpy() is different to that of bcopy.
 2003-04-11 10:34:38 +00:00
dsl
cff85b34d5 Fix prototypes of null_read and null_write, change to return errno values. 
This code can't actually be used anywhere!  I don't think its obvious use
would compile!
 2003-04-10 14:44:05 +00:00
dsl
4a16b1cc1d Add FS_DEF() and FS_OPS() defines to save typing (and errors) elsewhere. 
Kill __P() and argument names in prototypes.
(approved by christos)
 2003-04-10 14:39:46 +00:00
scw
bfc4be13a6 When MEMCOPY is defined, don't bother checking if a backwards-copy is 
required. That's what memmove() is for.

This should fix port-powerpc/16889. The backwards copyin can confuse
uiomove/genfs_getpages, resulting in corruption of files written over NFS.
 2003-04-07 21:04:19 +00:00
bjh21
f34ba16c9c NetBSD/acorn26 has used APCS-32 for years, so unifdef -U__APCS_26__. 2003-04-05 23:27:14 +00:00
he
97b6d5bf4f Conditionalize declaration of local variable ``i'', now that the 
code which uses it is also conditionalized.
 2003-04-02 19:47:25 +00:00
fvdl
42614ed3f3 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.
 2003-04-02 10:39:19 +00:00
mycroft
0b87bcb397 constify a couple of pointers. 2003-04-01 21:09:32 +00:00
thorpej
7a3fa51b7f Garbage-collect the DYNAMIC_CRC_TABLE stuff. The table it computed 
was incompatible with the new CRC code, and it is largely unnecessary
now, since the static table is so much smaller.

Fixes PR kern/20935.
 2003-03-29 22:25:25 +00:00
drochner
8b0843a5b2 There is no point in initializing "rootpath" to "/". 
Move it into BSS.
 2003-03-27 12:28:58 +00:00
mycroft
d8c7d22134 *** empty log message *** 2003-03-25 22:52:48 +00:00
mycroft
8320edced9 Remove a whole bunch of crap -- including the entirely adler32 stuff that's 
only used in gzip headers/footers -- that's not actually used here.  Also use
a smaller CRC table.  Saves >4k of code in boot images.
 2003-03-25 22:48:43 +00:00
mycroft
c6052ec21f const! const! 2003-03-25 22:35:36 +00:00
drochner
f81c1c504b remove stuff just moved to bootparam.c and some variables which are 
never used.
 2003-03-19 17:19:32 +00:00
drochner
3906113e15 Move global variables which are used only by bootparam here. 
("domainname" is useless and could be removed, but adding code to
skip this in the RPC reply would probably be more expensive than leaving
it as a dummy variable.)
 2003-03-19 17:18:07 +00:00
mycroft
4d7fb7469d Finish const poisoning. 2003-03-18 20:00:47 +00:00
mycroft
bb478ade6c Move more stuff into .rodata. 2003-03-18 19:33:51 +00:00
mycroft
f6258762e1 Move some stuff into .rodata. 2003-03-18 19:20:09 +00:00
drochner
68edf0e576 separate ether_sprintf() from the rest of ethernet support -- sometimes 
it makes sense to use the former w/o the latter (eg PXE)
 2003-03-12 16:46:31 +00:00
drochner
7b3b2ea783 no need to include "netif.h" anymore 
(shared interface stuff is in iodesc.h, included by net.h)
 2003-03-12 14:51:31 +00:00
drochner
7816074c59 separate the netif interface from the rest of the networking code, 
so that it can be replaced easily in md code
 2003-03-12 14:49:19 +00:00
jmmv
5649a49e43 After the "insert disk <number>, and press return..." message, check only 
for the return keypress.
 2003-03-11 19:43:04 +00:00
drochner
dd688f888f translate EACCES (happens with NFS) 2003-03-11 15:02:54 +00:00
dsl
ef50700873 LIBSA_NO_CLOSE is LIBSA_NO_FS_CLOSE everywhere else. 2003-03-07 00:46:37 +00:00
matt
cc005c66db Switch back to generic bzero/memset until new one is shown to work. 2003-02-25 20:15:02 +00:00
ragge
e8d062d58b Remove bogus check for bogus netmask. 2003-02-25 14:42:30 +00:00
pk
d71686ab26 Introduce fdloadfile() to load an image from an open file descriptor; 
implement loadfile() in terms of it.

This allows clients to open a file once and "load" it multiple times (e.g.
first with COUNT_KERNEL, then with LOAD_KERNEL) without the side-effects
of multiple open calls.
 2003-02-24 10:51:05 +00:00
matt
97d38cdec2 Actually use bzero.S. Also fix bzero to use GET_CPUINFO 2003-02-24 07:14:17 +00:00
matt
05a4c83a70 Don't make memset.c since bzero.o has memset in addition to bzero. 2003-02-24 07:09:18 +00:00
simonb
6e4342ca79 Add support for LFSv2 filesystems. From a libsa standpoint, LFSv1 and 
LFSv2 are treated as separate filesystem types for size considerations.
 2003-02-23 23:17:42 +00:00
simonb
7d43baad24 Use the MAX() macro from <sys/param.h> instead of a local inline. Results 
in same code size in ufs.c and removes an unused inline function in lfs.c.
 2003-02-23 22:47:43 +00:00
simonb
8d6004faf3 We can't use <string.h> for standalone programs; 
use <lib/libkern/libkern.h> for str*() prototypes instead.
 2003-02-23 12:31:29 +00:00
dsl
2d1837c8fc KNR, removing ugly 'unsigned' variables. 
Probably should be size_t, but now matched prototype.
(mainly agreed with christos - he wanted size_t....)
 2003-02-01 14:57:02 +00:00
dsl
912fab6ec9 Beautify a little 2003-02-01 14:54:22 +00:00
dsl
2c4edf02a4 Save some space 
(agreed by christos)
 2003-02-01 14:53:38 +00:00
dsl
3080e19ff3 Support limited filename globbing 
- agreed by christos
 2003-02-01 14:52:13 +00:00
fvdl
a3ff3a3038 Bump daddr_t to 64 bits. Replace it with int32_t in all places where 
it was used on-disk, so that on-disk formats remain the same.
Remove ufs_daddr_t and ufs_lbn_t for the time being.
 2003-01-24 21:55:02 +00:00
christos
8453828bf1 PR/19607: Bernd Ernesti: libsa does not have access to arpa/tftp.h. Put a 
copy of it in our tftp.h
 2003-01-12 18:59:15 +00:00
veego
a64314e402 Fix broken build due too the move of the cd9660 and msdosfs kernel source code. 2002-12-30 16:41:53 +00:00
pk
bd20047a69 Only display the final progress counter if any of the LOAD_ flags was given. 
Fix comment describing the return value.
 2002-12-11 09:55:20 +00:00
thorpej
e8cc3884de Rename __LDPGSZ to AOUT_LDPGSZ, to accurately reflect what it is. 2002-12-10 17:14:02 +00:00
thorpej
4245ee1663 Wrap this file in "#ifndef _STANDALONE". 2002-12-05 17:12:06 +00:00
fvdl
144469b350 Add strtoul.c 2002-11-25 00:55:22 +00:00
fvdl
a186add0a8 If LIBKERN_ARCH is defined, use that as the architecture-specific 
subdirectory. Needed for the x86_64 32bit compile case.
 2002-11-23 23:35:50 +00:00
chris
f86ab1a63e Sync arm asm libkern files with libc's asm files. 2002-11-23 14:29:29 +00:00
itohy
6e73936f81 Use assembly version of bzero() and memset(). 2002-11-20 09:52:53 +00:00
itohy
5d1c87f395 Assembly version of bzero()/memset(). 
Written by SHIMIZU Ryo.
 2002-11-20 09:51:52 +00:00
itohy
766d863c42 memcpy() and memmove() must return the first parameter. 
Problem found by itohy, fixed by SHIMIZU Ryo.
 2002-11-20 09:50:37 +00:00
rearnsha
6576c49b48 Add an assembler version of strcmp, based on example code from the ARM 
ARM.  As an example of the performance difference that this provides
a Dhrystone score on my Shark goes from 213k to 261k.
 2002-11-16 18:27:40 +00:00
thorpej
7f74df5ef3 ABICALLS -> __ABICALLS__ 2002-11-10 18:10:25 +00:00
perry
efd79c70c9 Add lint infrastructure 2002-11-02 07:48:17 +00:00
perry
6448ffbdfe set LLIBS= so we don't try to check the lint lib against llib-lc.ln 2002-11-02 07:46:42 +00:00
chs
cab484e445 move includes to the top so that this builds in libc context too. 2002-10-29 04:40:55 +00:00
chs
c04f87a03e remove setjmp/longjmp from libkern, they're not used. 2002-10-27 18:45:11 +00:00
chs
c5a350ef59 use %g5 instead of %g7 (since we want to use %g7 for the cpu_info pointer 
in the kernel).  resync libc and libkern versions of this file.
 2002-10-27 18:41:27 +00:00
christos
07dca24022 make offsetof lint friendlier. 2002-10-24 20:53:50 +00:00
scw
03c573236d Replace the SuperH memcpy() with homebrewed code. The former seems to have 
a subtle failure mode which can result in corruption of memory outside the
bounds of the destination buffer.
 2002-10-22 12:25:18 +00:00
scw
ac76a83a5c Sync with libc/quad: 
As discussed (briefly) on tech-userlevel, fix our quad support to work
correctly on LP64 platforms. This is mostly just s/long/int/ in the
appropriate places.
 2002-10-20 10:17:14 +00:00
scw
921743eed1 Fix a sign-extension botch for ILP32. 2002-10-19 08:54:23 +00:00
scw
0e1af8ca62 Doh. Bail out early if we're passed a zero-length buffer. 2002-10-19 08:53:45 +00:00
scw
99ad3a762b Add native optimised assembler versions of some libkern routines. 
The memcpy routine is courtesy of SuperH, with some tweaks by me.

XXX: There is room for further optimisation in some of these routines.
 2002-10-17 11:53:32 +00:00
jdolecek
d32bd396f2 #undef ffs before the ffs() function definition, so that the name 
isn't rewrote to __builtin_ffs() on gcc 2.95+; this fixes compilation
on sun2
also change the comment for function
 2002-10-10 10:51:56 +00:00
jdolecek
aaccb8dc2b need to include <sys/param.h> to get inline strlen() on vax; found 
with help of Matt Thomas
 2002-10-08 21:45:36 +00:00
simonb
a30355b57a Add RCS ids. 2002-10-08 11:58:54 +00:00
dan
73390e7e36 let this compile in the non KERNEL case without NRND. 2002-10-06 13:42:36 +00:00
tls
0f95ec4fd5 ESP output was drawing down the entropy pool at a ferocious rate, a 
particular problem on hosts with only wireless interfaces that are
definitely not safe to use as entropy sources.

Add arc4randbytes() which hands out bytes from the same source used
by arc4random().  This is intended to be a _temporary_ interface
until we can design and implement a better general PRNG interface
that is decoupled from the entropy-pool implementation.

Modify key_randomfill() (used only for initialization vectors on
SA creation and via key_sa_stir_iv(), which does not "stir",
despite its name) to use arc4randbytes() instead of pulling bits
directly from the entropy pool.  It is my hope that this change
will pose minimal integration problems for the KAME folks as the
random-pool interface is *already* different between each BSD
variant; this just simplifies the NetBSD case and solves a
fairly serious problem.

Note that it is generally considered acceptable cryptographic
practice to use a fast stream cipher to generate IVs for encryption
with stronger block ciphers.  For example, the use of "non-Approved"
PRNGs to generate IVs for "Approved" block ciphers is explicitly
sanctioned by FIPS 140-2.
 2002-10-06 08:51:44 +00:00
tls
cd114adca5 This commit includes two major changes: 
1) Speed up arc4random().  We make arc4randbyte() inline, which makes this
   not much slower than, say, the other arc4 implementation in our kernel.

   We also replace four calls to arc4randbyte() with a loop, saving about
   20% on some processors where the "unrolled" arc4randbyte() calls would
   needlessly stomp the cache.

2) Address various problems with the initialization/"stirring" code,
   primarily in the area of handling of the source data from the kernel
   entropy pool.  We used to:

	a) Ask the entropy pool for 32 bytes

	b) If we got zero bytes, key with junk from the stack (ouch!)
	   which has some nasty implications, to say the least.  For
	   example, we're most likely to get zero bytes at boot time,
	   when the stack contents are even more predictable than usual.

	c) If we got less than 32 bytes but more than zero bytes, use
	   however many bytes we got as the arc4 key, copying it
	   repeatedly as per usual arc4 key setup.

	   Because of the way NetBSD's entropy pool works, this was
	   mostly harmless, because if you ask for RND_EXTRACT_ANY,
	   you always get as many bytes as you ask for.  However,
	   this is probably a security hole in the original FreeBSD
	   code, where AFAICT you might end up using an 8-bit arc4
	   key -- not good, much worse than using the output of the
	   entropy pool hash function even when it thinks it only
	   has 8 bits of entropy to give you.

	   One thing this code could do on NetBSD that was not so
	   good was to replace a key with a lot of entropy with
	   one with less entropy.  That's clearly counterproductive.

   The new code, instead:

	a) Asks for 32 good bytes.  If it gets them, use them as the
	   arc4 key in the usual way.

	b) Tracks how many entropy bytes the key it's replacing had.
	   If the new entropy request got less bytes, leave the old
	   key in place.  Note that the first time through, the "old
	   key" had zero bytes, so we'll always replace it.

	c) If we get less then 32 bytes but more than we had, request
	   EXTRACT_ANY bytes from the entropy pool, padding the key
	   out to 32 bytes which we then use as the arc4 key in the
	   usual way.

This is still really all rather backwards.  Instead of this generator
deciding to rekey itself using a basically arbitrary metric, it should
register a callback so that the entropy pool code could rekey it when
a lot of bits were available.  Details at 11.

Finally, rename the "stir" function (which did not stir) to "rekey",
which is what it actually does.
 2002-10-06 06:47:40 +00:00
junyoung
2a1b344158 Unconditionally add strstr.c. Bill Studenmund. 2002-10-04 20:00:00 +00:00
junyoung
26737526db Add strstr() to libkern. For now, it's only used in i386 (for processor 
identification).
 2002-10-04 18:39:52 +00:00
itojun
df6ef6d0d3 include rnd.h only under kernel build. 
caveat: arc4random() will not get stirred in bootstrap code.
 2002-10-04 07:33:26 +00:00
itojun
dfea6e4344 add missing "rnd.h" include - noted by simonb 2002-10-04 02:37:23 +00:00
matt
44bc4ef4a9 Ansify's (use prototypes). 2002-10-04 00:50:15 +00:00
scw
42ca361622 Preserve and restore the caller's FP status register, and ensure 
it contains a sane value while we're doing FP ops.
 2002-09-28 10:33:59 +00:00
provos
0f09ed48a5 remove trailing \n in panic(). approved perry. 2002-09-27 15:35:29 +00:00
chs
2841e1341c add strtoul.c, it's now used in MI code. 2002-09-21 17:45:16 +00:00
ragge
77d3833330 Need strtoul() also. 2002-09-19 17:37:32 +00:00
thorpej
2699791533 Do not #include "/usr/include/arpa/tftp.h" directly. Doing so is 
VERY BAD for cross-compiling.
 2002-09-16 16:53:45 +00:00
msaitoh
a991dcef11 Add __movstr_i4_{odd,even} for -m4. 
Written by SHIMIZU Ryo.
 2002-09-05 08:35:15 +00:00
itohy
f89823c1f8 Save 1-4 instructions on all cases except for the ret=0 case. 
This is probably the last version from me. :)
You are welcome to speed it up, of course. :)

Here's a benchmark on SH-4 200MHz.
9.2% faster if all the cases occur evenly.

return value	C version	previous vers	this version	speed ratio
of ffs()	(ns/call) *1	(ns/call)	(ns/call) *2	(*1/*2)
------------	------------	-------------	------------	-----------
 0		  86		 81		 81		1.06
 1		 110		106		 91		1.21
 2		 132		106		 92		1.43
 3		 165		117		 96		1.72
 4		 201		116		 95		2.12
 5		 237		107		 99		2.39
 6		 271		106		101		2.68
 7		 307		116		107		2.87
 8		 342		116		105		3.26
 9		 376		126		111		3.39
10		 410		127		110		3.73
11		 446		136		115		3.88
12		 483		134		116		4.16
13		 518		125		119		4.35
14		 551		126		120		4.59
15		 587		135		127		4.62
16		 624		136		126		4.95
17		 658		139		126		5.22
18		 694		140		126		5.51
19		 727		148		131		5.55
20		 764		150		131		5.83
21		 799		141		135		5.92
22		 834		142		135		6.18
23		 868		152		140		6.20
24		 903		153		142		6.36
25		 939		140		127		7.39
26		 974		141		126		7.73
27		1009		152		131		7.70
28		1044		148		130		8.03
29		1080		141		136		7.94
30		1115		141		136		8.20
31		1151		151		141		8.16
32		1185		151		140		8.46
 2002-09-01 13:14:53 +00:00
itohy
fa5465079f Slightly improved version of ffs(3). 
Partially from SHIMIZU Ryo <ryo@iij.ad.jp>.  Thanks.
Some cases are slower, but other most cases are faster.

Here's a benchmark on SH-4 200MHz.

return value	C version	previous vers	this version	speed ratio
of ffs()	(ns/call) *1	(ns/call)	(ns/call) *2	(*1/*2)
------------	------------	-------------	------------	-----------
 0		  86		 86		 81		1.06
 1		 110		 86		106 *(slower)	1.04
 2		 132		 86		106 *		1.25
 3		 165		105		117 *		1.41
 4		 201		104		116 *		1.73
 5		 237		111		107		2.21
 6		 271		111		106		2.56
 7		 307		126		116		2.65
 8		 342		125		116		2.95
 9		 376		122		126 *		2.98
10		 410		121		127 *		3.23
11		 446		139		136		3.28
12		 483		140		134		3.60
13		 518		146		125		4.14
14		 551		146		126		4.37
15		 587		161		135		4.35
16		 624		162		136		4.59
17		 658		141		139		4.73
18		 694		142		140		4.96
19		 727		160		148		4.91
20		 764		161		150		5.09
21		 799		167		141		5.67
22		 834		167		142		5.87
23		 868		181		152		5.71
24		 903		181		153		5.90
25		 939		146		140		6.71
26		 974		146		141		6.91
27		1009		166		152		6.64
28		1044		165		148		7.05
29		1080		171		141		7.66
30		1115		171		141		7.91
31		1151		185		151		7.62
32		1185		186		151		7.85
 2002-08-28 15:34:35 +00:00
thorpej
181f0a9b54 Tweak the previous change so that a prototype is always provided. 2002-08-25 21:09:45 +00:00
itohy
6736303e13 Use assembly version of ffs(3). 2002-08-24 06:39:48 +00:00
itohy
85ce1de27f Oops, SYSLIBC_SCCS -> LIBC_SCCS 2002-08-24 06:37:24 +00:00
itohy
70b5675025 Assembly version of ffs(3). 
Confirmed to return the same value as that of the C version.

The results of a simple benchmark on SH-4 200MHz, is shown below.
I think this shows acceptable performance.

return value	C version	this version	speed
of ffs()	(ns/call)	(ns/call)	ratio
------------	---------	------------	-----
 0		  86		 86		1.00
 1		 110		 86		1.27
 2		 132		 86		1.53
 3		 165		105		1.57
 4		 201		104		1.93
 5		 237		111		2.13
 6		 271		111		2.44
 7		 307		126		2.43
 8		 342		125		2.73
 9		 376		122		3.08
10		 410		121		3.38
11		 446		139		3.20
12		 483		140		3.45
13		 518		146		3.54
14		 551		146		3.77
15		 587		161		3.64
16		 624		162		3.85
17		 658		141		4.66
18		 694		142		4.88
19		 727		160		4.54
20		 764		161		4.74
21		 799		167		4.78
22		 834		167		4.99
23		 868		181		4.79
24		 903		181		4.98
25		 939		146		6.43
26		 974		146		6.67
27		1009		166		6.07
28		1044		165		6.32
29		1080		171		6.31
30		1115		171		6.52
31		1151		185		6.22
32		1185		186		6.37
 2002-08-24 06:30:34 +00:00
ragge
3f5fba68de Do not try to use "__builtin_ffs" on vax, ffs is an instruction already. 
Maybe possible to teach gcc to use it?
 2002-08-23 08:45:27 +00:00
thorpej
c0d823519c GCC 2.95 supports __builtin_ffs(); use it. 2002-08-21 01:27:58 +00:00
thorpej
dafc960ed6 Local label fixup. 2002-08-17 19:00:26 +00:00
chris
d8ac0fb3aa pull in ffs.S from libc for arm. 
The main benefit is that ffs always runs in constant time.
 2002-08-17 01:22:33 +00:00
briggs
b98931f62e Use .L prefix for all local labels. 2002-08-15 18:30:36 +00:00
matt
7c4618a9ce cpu_info is not in spr0, but spr_g_0. 2002-07-30 06:10:46 +00:00
kent
6789db7962 Avoid redundant memory access. 2002-07-10 06:02:09 +00:00
scw
59474a8c82 NetBSD, meet the SH-5 cpu. 
SH-5, meet NetBSD.

Let's hope this is the start of a long and fruitful relationship. :-)

This code, funded by Wasabi Systems, adds initial support for the
Hitachi SuperH(tm) SH-5 cpu architecture to NetBSD.

At the present time, NetBSD/evbsh5 only runs on a SH-5 core simulator
which has no simulated devices other than a simple console. However, it
is good enough to get to the "root device: " prompt.

Device driver support for Real SH-5 Hardware is in place, particularly for
supporting the up-coming Cayman evaluation board, and should be quite
easy to get running when the hardware is available.

There is no in-tree toolchain for this port at this time. Gcc-current has
rudimentary SH-5 support but it is known to be buggy. A working toolchain
was obtained from SuperH to facilitate this port. Gcc-current will be
fixed in due course.

The SH-5 architecture is fully 64-bit capable, although NetBSD/evbsh5 has
currently only been tested in 32-bit mode. It is bi-endian, via a boot-
time option and it also has an "SHcompact" mode in which it will execute
SH-[34] user-land instructions.

For more information on the SH-5, see www.superh.com. Suffice to say it
is *not* just another respin of the SH-[34].
 2002-07-05 13:31:28 +00:00
bjh21
3763adaefd Avoid leaving junk in the top half of R0 on return. 
This fixes port-arm/17440.
 2002-07-01 19:07:18 +00:00
wrstuden
10d47b4dd3 Updated version of cscope/mkid support. Check libkern and compat lib 
for source files. Also include header files in mkid run.
 2002-06-18 23:46:52 +00:00
matt
940fedda07 Fix make breakage. $ZDST != ${ZDST} in make. make clean/cleandir now works. 2002-06-15 19:30:56 +00:00
itojun
c3e57df04c discard 256 bytes of output every time we stir (not just when initializing) 2002-06-14 03:05:46 +00:00
fredette
e978777b86 Added hppa support to libkern. 2002-06-06 20:03:37 +00:00
itojun
937b671271 use exit(int), not exit(void), consistently - even if the arg has no meaning. 2002-06-01 11:40:31 +00:00
itojun
c0e2bb0509 need libkern.h for bootloaders 2002-05-29 06:27:15 +00:00
bjh21
a20462dc6e Implement LIBSA_NO_FS_CLOSE, LIBSA_NO_FS_WRITE and LIBSA_NO_FS_SEEK. 
LIBSA_NO_FS_SYMLINK and LIBSA_FS_SINGLECOMPONENT are irrelevant here.
 2002-05-28 14:30:53 +00:00
bjh21
43079a573b KNF. 2002-05-28 14:26:01 +00:00
itojun
2e926ba699 no need for libkern.h 2002-05-28 12:21:22 +00:00
itojun
0ac289dea9 have arc4random(9). 2002-05-28 10:09:24 +00:00
lukem
e34d4e21de fix comment 2002-05-10 11:07:01 +00:00
simonb
5457f78a34 Don't bother testing if a uint8_t is > 256 -- that test is always false. 2002-05-09 02:44:39 +00:00
simonb
67c33ffcda Remove two shadowed variables, one of which was set to what it was 
shadowing(!) and the other a temporary variable (as was it's shadow).
Code generated with "gcc -O2" is the same before and after.
 2002-05-07 02:02:41 +00:00
martin
9f680534b0 Add strtoul. 2002-05-05 11:23:24 +00:00
ross
f98b9b43e8 Add strtoul.c 2002-04-24 16:56:36 +00:00
ragge
b0fa7eb2c1 Someone had a braino here; IP_TTL != IPDEFTTL. This caused the standalone 
udp traffic to only have a ttl of 4.
Found by Jens Nilsson, jens@rockstorm.se.
 2002-04-23 09:16:09 +00:00
martin
22143f5a44 Add strtoul.c, otherwise kernels using "wi* at pcmcia?" do not work 
anymore.

Why only four archs provide this is beyound me.
 2002-04-16 06:36:02 +00:00
matt
fd1c084a68 Add a 1byte pad to make the ustar_t word aligned so the uas_1cyl after it 
will also be word aligned.  This makes the VAX VMB bootrom happy since it
doesn't support odd-aligned buffers.
 2002-03-30 01:29:48 +00:00
matt
cb520da5b3 Refresh from libc. 2002-03-28 00:46:08 +00:00
fredette
58830d68c5 Added brand-new integer multiply and divide support, used only 
on the m68000.
 2002-03-26 22:49:32 +00:00
matt
12810ed37d Use size_t in prototype (so this will be LP64 clean for PPC64 someday). 
Calculate len separately for icache & dcache in case each has different
cacheline widths.  Make the code for both loops the same except for the
dcbst/icbi.  Deal with sizes >=2GB properly (like that'll happen but ...)
 2002-03-26 21:20:24 +00:00
fredette
d617871b0c On the m68000, if and only if gcc doesn't seem to know 
where libgcc.a is, fall back to one under DESTDIR.
 2002-03-22 00:17:12 +00:00
thorpej
6440db6488 * Add a NetBSD Vendor Class Identifier option as proposed on tech-net 
in message <20020216172527.C23901@dr-evil.shagadelic.org>.
* Print the bootp/dhcp response, as is done for rarp/bootparam
  responses.
* Nuke bootp_flags and BOOTP_PXE; they're not used, nor should they be.
 2002-03-20 23:10:39 +00:00
dbj
f0658bdada make compile with _STANDALONE 2002-03-18 05:10:58 +00:00
gmcgarry
d16aceedcc Protect remaining references to 'debug' with NETIF_DEBUG. 2002-03-17 05:46:37 +00:00
simonb
f28e18332c Move files[] from globals.c to its own file. Including all of globals.o 
breaks the size limit for at least the pmax bootblocks.

Fixes PR port-pmax/15924 from Gregory McGarry.
 2002-03-15 13:23:34 +00:00
eeh
4c434f6210 Updated from libc. 2002-03-13 00:59:29 +00:00
fvdl
104148a990 Sync with userland (1.1.4) 2002-03-12 00:42:23 +00:00
matt
e2d6f22138 Add register prefixes to these. 2002-02-24 00:12:41 +00:00
matt
6cad4b795d Upon further reflection, move udiv/urem to libkern and out of vax/vax. 2002-02-24 00:08:19 +00:00
thorpej
0b91bc440f Move files[] from open.c to globals.c, so that it's possible to 
use libsa in an application where there are no file systems or
devices.
 2002-02-23 05:44:24 +00:00
lukem
da694bd77b fix spelos 2002-02-22 12:46:53 +00:00
ragge
f2d946a56e blkset() used a register for set value that get clobbered by movc5, 
causing the set area to get unpredictable contents.
 2002-02-19 21:46:17 +00:00
thorpej
15bffcdeed Add a comment describing what SA_USE_LOADFILE is for. 2002-02-17 23:22:22 +00:00
thorpej
0d210931e3 Add a missing "static". 2002-02-17 23:19:00 +00:00
thorpej
bf9a052aa4 Add EOFFSET. 2002-02-17 23:18:32 +00:00
reinoud
e858ed8fa4 Not all ports use the `offset' in their calulations and on those platforms 
compile errors are generated due to it. By explicitly using `offset=offset'
the variable is used in the compilers view and is optimised away anyway.
 2002-02-11 20:25:56 +00:00
thorpej
2362fef9a8 Add __blkcpy() and __blkset() (renamed/modified from __blkclr()) to 
libkern.
 2002-02-10 22:04:51 +00:00
ross
e31435237d sync 2002-01-24 00:45:22 +00:00
uch
e71de3f668 R5900 short-loop bug. 2002-01-02 12:34:27 +00:00
thorpej
23ed6be403 Always provide alloca() as __builtin_alloca(). 2001-12-28 07:37:06 +00:00
shin
1bac15cba5 we need ffs(). 2001-12-27 00:10:39 +00:00
shin
6870c1d462 don't use .abicalls in kernel. 2001-12-27 00:09:59 +00:00
shin
e509d7712d copy from libc/arch/mips/string 2001-12-27 00:08:19 +00:00
thorpej
5ed948ecea The kernel is now built with -ffreestanding, so GCC built-ins are 
disabled.  Explicitly re-enable some that we want to use, namely:

* memcpy() -> __builtin_memcpy()
* memcmp() -> __builtin_memcmp()
* memset() -> __builtin_memset()

* strcpy() -> __builtin_strcpy()
* strcmp() -> __builtin_strcmp()
* strlen() -> __builtin_strlen()

We might also consider some others for GCC 3.x.
 2001-12-23 22:48:29 +00:00
tv
8e6f7afb5b MKfoo=no -> NOfoo 2001-12-12 01:48:43 +00:00
wiz
b4371d47f5 Replace some misuses of "then" with "than". 2001-12-04 17:56:30 +00:00
mjl
f14e78b4c3 Disable bzero/memset assembler implementation until the dependency 
problem on assym.h is sorted out and TRW to get at CACHELINESIZE in
the kernel is determined.
 2001-12-02 11:03:39 +00:00
mjl
8231ab74c5 Add assembler version of strlen. 2001-11-30 02:27:20 +00:00
mjl
625c08cf7e Outifdef some stuff not needed in the _KERNEL case. 2001-11-30 02:25:50 +00:00
mjl
4ee3b0f097 Add assembler versions of ffs, bzero and memset. 2001-11-29 00:27:07 +00:00
jmc
2229499bfb Don't make clean and cleandir depend on the lib subdir. Just check for it's 
existance before running the submake. This makes it possible to run a
make build (which runs cleandir before make obj) in a r/o source tree
 2001-11-21 22:10:54 +00:00
chris
9cc0f33345 Tidy up some memory copying cruft: 
bcopy.S is no longer needed
memmove and memcpy were both stacking r0 and unstacking it to keep the return value, so push this down into _memcpy.
rename _memcpy.S to memcpy.S.
memmove.S is now just a placeholder otherwise the make system automagically adds a memmove.c file to libkern.
memmove is just another entry point for memcpy.
 2001-11-20 00:29:19 +00:00
lukem
2565646230 don't need <sys/types.h> when including <sys/param.h> 2001-11-15 09:47:59 +00:00
tv
4446c00002 Undefine DESTDIR; we don't want the special DESTDIR <bsd.lib.mk> 
handling for kernel libraries.

XXX this build method should be replaced by something more sane
 2001-11-14 21:59:31 +00:00
chris
4d1b8d545e Sync to libc version of divsi3.S. This is to fix up the stack for 8 byte alignment. 2001-11-13 20:06:40 +00:00
christos
c89e803d30 Remove USB copyrights. The coff and elf loading code did not come with BSD4.4. 2001-11-09 19:27:25 +00:00
scw
f1defc3543 To avoid backwards seeks on sequential devices (eq. QIC tapes), read all 
the program headers in one operation into an internal buffer.
 2001-11-09 18:31:08 +00:00
thorpej
0971f93345 Make the ELF loadfile routines byte-order independent when used in 
a non-_STANDALONE environment (e.g. installboot(8)): internalize and
externalize the exec, program, and section headers as necessary.

Reviewed and OK'd by Christos.
 2001-10-31 21:24:09 +00:00
thorpej
a43b4351a8 Oops, committed wrong copy of file in previous revision. 2001-10-31 20:22:22 +00:00
thorpej
90aee7593a Add standalone 64-bit to/from {big,little}-endian routines. 2001-10-31 20:19:52 +00:00
thorpej
e727e3f180 Split elf32 vs. elf64 handling in loadfile(), including support for 
each separately and explicitly.  BOOT_ELF is now BOOT_ELF32 and
BOOT_ELF64, and ELFSIZE should no longer be defined in loadfile_machdep.h.
 2001-10-31 17:20:45 +00:00
thorpej
4810d73020 Build the loadfile() a.out, ECOFF, and ELF back-ends as separate 
objects.
 2001-10-31 01:51:42 +00:00
thorpej
91626c3515 Split the exec formats included by loadfile() into separate files. 
Primary goal: explcitly select which ELF format (elf32 or elf64) to
support for a cross tool which uses loadfile().
 2001-10-30 23:51:03 +00:00
thorpej
74eebee33c Add standalone byte-swapping routines that don't require testing 
the system's byte-order:
- host to {big,little}-endian {16,32}
- {big,little}-endian {16,32} to host

These are not intended to be used in libsa directly, but are rather
intended to be used by host tools which may use libsa routines (such
as loadfile()) which need to use explicit byte-ordering.
 2001-10-30 23:35:33 +00:00
matt
920cfb5205 Add "Red Black +" balanced binary tree routines to libkern. These provide 
O(log(N)) insertation, deletion, and lookup times.  However, unlike most
red-black implemenations, this one does no additional memory allocations.
 2001-10-24 22:40:56 +00:00
jdolecek
a8fcba2901 Fix compilation on Alpha with ARP_DEBUG. 
Fixes kern/6440 by R. C. Dowdeswell
 2001-10-18 19:00:38 +00:00
uch
07f8f33bb9 R5900 miss-prediction of branch targets for short-loop. 2001-10-16 15:40:53 +00:00
minoura
12ea5d8238 Add changedisk_hook(). 
Machine-dependent code can eject the floppy to prompt the next volume in it.
(Or add another method in devsw?)
 2001-09-28 15:15:24 +00:00
wiz
4c99916337 va_{start,end} audit: 
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).

Improved by comments from enami and christos -- thanks!

Heimdal/krb4/KAME changes already fed back, rest to follow.

Inspired by, but not not based on, OpenBSD.
 2001-09-24 13:22:25 +00:00
fvdl
f22b808267 Make new gas happy. Use movzbl instead of xorl + movb. 2001-09-21 14:14:30 +00:00
fredette
7aaa6a4bc4 On the 68010, don't bother with the by-8-longwords loop, instead 
only 16-bit align the region and use loop mode with longwords
to do the bulk of the work.

On the 68020+, fixed an optimization bug where all regions that start
on odd addresses would not be properly longword aligned.
 2001-09-06 21:30:15 +00:00
tsutsui
cf574991b8 Add a small version of memmove() for libsa. 
Mostly identical with libsa/bcopy.c.
 2001-09-02 07:04:16 +00:00
matt
28c81ffc15 7450 requires a sync before the the isync (MPC7450UM - 3.4.4.8) 2001-08-22 21:19:58 +00:00
itojun
9fe945f2fe sync argument/return type of [hn]to[nh][ls] to XNET 5.2 (uint{16,32}_t). 
as discussed on tech-net.
 2001-08-22 07:42:07 +00:00
jdolecek
c495131fe3 Move _insque()/_remque() to libkern. Once remaining uses would 
be converted to <sys/queue.h> macros, _insque()/_remque() would be eliminated
altogether.
 2001-08-12 08:35:31 +00:00
lukem
9bbc26f3dc convert to ansi knf, and fix a bug where the last arg was incorrectly 
'u_char' instead of 'int' (per the prototype and usage and other scanc
implementations)
 2001-08-09 08:03:34 +00:00
bjh21
acf574f63e When loading ELF, zero out: 
The e_shstrndx field in the ELF header, since we don't load .shstrtab.
The sh_name field in each section header, for the same reason.
The sh_offset field for any section we don't load.

This means the kernel has some chance of knowing what it's being given.  It
also means that the behaviour of old kernels with new loaders should be
deterministic (if not terribly useful: they still can't find the symbol
table).
 2001-07-31 22:11:57 +00:00
bjh21
30f144749a G/C "off", since it was just tracking the difference between maxp and elfp. 2001-07-31 21:09:52 +00:00
bjh21
67a82e1d4e Fix a small memory leak when counting the size of the symbol table (shp was 
ALLOC'ed if (LOAD_SYM|COUNT_SYM), but FREEd if (LOAD_SYM)).
 2001-07-31 20:03:03 +00:00
bjh21
1a35da3617 When loading an ELF kernel, don't load all the STRTAB sections. Instead, just 
load those STRTAB sections that are referenced by a SYMTAB that we're loading.

The main advantage of this is that (at least with the binaries output by my
ARM ELF linker) this removes the need to seek backwards through the file, which
is a big win when loading a gzipped kernel.

While we're here, don't allocate space for string tables we don't load.
 2001-07-31 19:20:29 +00:00
fvdl
3350f68f80 Avoid warnings about uninitialised usage. 2001-07-19 18:55:38 +00:00
wiz
1bc6d2cee9 Fix typo (`information' has an 'r'). 2001-07-19 16:13:00 +00:00
christos
366971a414 Back out previous. The booter will need to find the symbol table itself, 
as explained in the code.
 2001-07-13 17:43:23 +00:00
christos
6711e49228 From Nigel Pearson: Make SYMS and NSYMS work on ELF. 
The MacOS booter needs them.
 2001-07-13 17:17:12 +00:00
thorpej
ac8a2539c1 Provide bcopy() here. 2001-07-13 00:04:00 +00:00
perry
5624bbb1d4 restore bzero and bcmp prototypes for now -- this has to be hashed out. 2001-07-07 17:22:25 +00:00
simonb
5439e1a9ff Put the prototypes for bcmp() and bzero() back (ifdef _STANDALONE) so that 
libsa builds again.
 2001-07-07 12:23:43 +00:00
perry
7ab9c62227 Remove bcmp and bzero prototypes. And yes, I actually checked and 
tested this time. (Slap self repeatedly.)
 2001-07-07 05:42:16 +00:00
toshii
70e10fb682 Remove bcmp, bcopy and bzero. We don't need them as they aren't 
called from asm code, and we shouldn't have them if we don't need them.
 2001-07-06 17:35:44 +00:00
kleink
e69c885f3e Sync with libc: use bzero-based assembly version of memset(). 2001-07-01 11:55:36 +00:00
fvdl
9b4c0e34d2 Initial commit of the port to AMD's upcoming 64 bit architecture, the 
x86-64. Since there's no hardware available yet, this port is only
known to run on the Simics simulator for at the moment, and as such
uses the PC devices that it simulates for now. It will be developed
more (and cleaned up) as the hardware becomes available.
 2001-06-19 00:19:12 +00:00
fredette
49fda862f9 When MACHINE_ARCH is m68000, compile ffs.c and random.c 
instead of ffs.s and random.s, and sneak the libgcc
integer support routines into the list of library objects.
 2001-05-16 03:30:39 +00:00
fredette
332aa50acb Use the EXTBL macro where we want the extbl instruction. 
On the 68010 this expands to an extw/extl combination.
 2001-05-16 03:14:12 +00:00
fredette
8ba384c841 On the 68010, we are forced to do bytewise compares 
and copies if the two addresses aren't of the same
evenness.
 2001-05-16 03:06:41 +00:00
kleink
95fa77ab80 Make this work for PIC (as opposed to pic) without taking chances of fitting 
__ffstab into a GOT13 relocation; from Eduardo Horvath.
 2001-05-13 20:03:45 +00:00
lukem
85772a1cef remove some lint 2001-04-30 02:34:58 +00:00
ross
2df695b1e4 o IEEE 754 floating-point completion code. 
o Implement the architected FP_C "Floating Point Control Quadword"
 2001-04-26 03:10:44 +00:00
thorpej
4747025b48 ctype-like functions are now in libkern. 2001-04-18 15:40:58 +00:00
thorpej
23a3a54650 libkern.h now has the ctype routines. 2001-04-05 04:39:02 +00:00
thorpej
db5854a62c Build strtoul.c 2001-04-05 04:38:33 +00:00
thorpej
554aa34ee7 Add ctype routines. 2001-04-05 04:38:06 +00:00
hubertf
267271c1b2 Explain some SA_* options - reading compressed kernels, netboot 
Useful for stripping down bootcode.
 2001-03-31 09:45:11 +00:00
cgd
b7ad250ab1 copy from lib/libc/arch/mips/gen 2001-02-27 19:45:26 +00:00
enami
3d31264640 Don't set ARCHSUBDIR to empty string. 2001-02-18 22:38:50 +00:00
bjh21
d308c5c5ed Use MACHINE_CPU to find the architecture subdir, or MACHINE_ARCH if that 
exists.  Same algorithm as libc uses.
 2001-02-16 16:58:27 +00:00
simonb
0292c3474f Use arm arch directory for arm32 as well as arm26. 2001-02-15 23:17:44 +00:00
bjh21
da9d806354 Move arm32 over to using the shared ARM libkern. 2001-02-15 22:44:09 +00:00
msaitoh
3c31811206 don't profile (use NENTRY() and ALTENTRY()) 2001-02-14 21:04:17 +00:00
msaitoh
9af8d0bdad ENTRY() 2001-02-14 18:14:37 +00:00
msaitoh
2633a5dcb5 _C_LABEL() 2001-02-14 17:57:31 +00:00
bjh21
e68a8d59fa Sync with libc for licence update. 2001-01-23 19:12:29 +00:00
itojun
f039f89ec5 prepare for sh3e[bl] split 2001-01-04 06:53:45 +00:00
bjh21
af14995e51 Create a shared set of ARM sources for libkern and move arm26 over to using 
them.

These are identical to the current arm32 sources with the following exceptions:
 - References to C labels are wrapped in _C_LABEL().
 - Function returns have an alternate version inside #ifdef __APCS_26__.
 2000-12-29 20:51:56 +00:00
bjh21
d839461405 Pull across arm32 rev 1.4: 
ALTENTRY() must die.
 2000-12-16 14:38:50 +00:00
bjh21
0b45f78538 Pull across arm32 rev 1.5: 
ALTENTRY() must die.
 2000-12-16 14:38:06 +00:00
mycroft
6d9be19e76 ALTENTRY() must die. 2000-12-14 22:00:20 +00:00
bjh21
1e720616fb Copy from libc 2000-12-14 19:51:51 +00:00
bjh21
af87db0411 Use _C_LABEL 2000-12-14 19:50:38 +00:00
bjh21
fe80ce82c0 Copy from libc 2000-12-14 19:44:58 +00:00
bjh21
c044c88beb Sync with arm32. 2000-12-14 19:33:00 +00:00
mycroft
a5a04ddba2 These versions have different names than libc... 2000-12-12 17:53:20 +00:00
mycroft
0e5af5b3d1 GC. 2000-12-12 17:51:03 +00:00