Commit Graph

11971 Commits

Author SHA1 Message Date
kientzle
7711ed1cf5 Use the "start_time" (time at which the restore process began)
to fill in a missing atime instead of substituting mtime.

PR:		bin/124915
2008-09-01 02:50:24 +00:00
kientzle
fe3cf0e14f New mtree writer, thanks to Joerg Sonnenberger.
Obtained from:	Joerg Sonnenberger
2008-08-31 07:21:46 +00:00
kientzle
ede0c9fe5c Joerg Sonnenberger's improvements to the shar writer.
Significant performance improvements, better quoting of file names, etc.
2008-08-31 07:10:40 +00:00
kientzle
a3fa470b0f Make libarchive_test a little smarter about trying to find
its reference files when you don't specify -r.  It now checks
a couple of likely nearby directories to see if any of them
have a particular known file.
2008-08-31 07:06:02 +00:00
kientzle
558a49e6d8 When atime wasn't specified, it should get set == mtime.
This is much stronger than just asserting that it's not zero.
2008-08-30 05:31:23 +00:00
obrien
30759f2655 Add the needed libpthread_md.c for MIPS.
Obtained from:	Juniper Networks
2008-08-28 15:41:12 +00:00
pjd
fb7f3b6363 Add links to all libpcap functions. 2008-08-28 11:48:49 +00:00
kientzle
76addb3012 If no atime was specified (for example, when extracting from ustar
archives), set atime == mtime.  Before this, atime would get restored
to 0.
2008-08-28 06:40:22 +00:00
obrien
49dcd989d3 Add the needed _setjmp.S for MIPS.
Obtained from:	Juniper Networks
2008-08-27 17:58:51 +00:00
jasone
a734052e9c Add thread-specific caching for small size classes, based on magazines.
This caching allows for completely lock-free allocation/deallocation in the
steady state, at the expense of likely increased memory use and
fragmentation.

Reduce the default number of arenas to 2*ncpus, since thread-specific
caching typically reduces arena contention.

Modify size class spacing to include ranges of 2^n-spaced, quantum-spaced,
cacheline-spaced, and subpage-spaced size classes.  The advantages are:
fewer size classes, reduced false cacheline sharing, and reduced internal
fragmentation for allocations that are slightly over 512, 1024, etc.

Increase RUN_MAX_SMALL, in order to limit fragmentation for the
subpage-spaced size classes.

Add a size-->bin lookup table for small sizes to simplify translating sizes
to size classes.  Include a hard-coded constant table that is used unless
custom size class spacing is specified at run time.

Add the ability to disable tiny size classes at compile time via
MALLOC_TINY.
2008-08-27 02:00:53 +00:00
kib
05dac85e4b Implement WNOWAIT flag for wait4(2). It specifies that process whose status
is returned shall be kept in the waitable state.
Add WSTOPPED as an alias for WUNTRACED.

Submitted by:	Jukka Ukkonen <jau at iki fi>
PR:	standards/116221
MFC after:	2 weeks
2008-08-26 12:37:16 +00:00
kib
2d990eae05 When calculating arguments to the interpreter for the shebang script
executed by fexecve(2), imgp->args->fname is NULL. Moreover, there is
no way to recover the path to the script being executed.
Do what some other U*ixes do unconditionally, namely supply /dev/fd/n
as the script path when called from fexecve(). Document requirement of
having fdescfs mounted as caveat.
2008-08-26 10:53:32 +00:00
kientzle
f8ec8301f6 Alphabetize the list of tests. 2008-08-25 06:08:22 +00:00
kientzle
0563028aef Update the total archive byte counters when writing entries to disk using
archive_write_disk.
Update cpio to use this to emit block counts in -p mode.
Update cpio tests to verify these block counts.
2008-08-24 06:21:00 +00:00
kientzle
5f09367fca Remove the stillborn attempt to cleanup tests as well as the build dir. 2008-08-24 05:54:28 +00:00
kientzle
1f8b9faf14 Fail copying path/.. only if SECURE_NODOTDOT was specified.
Since we already warn for any '..' elements in that case,
the extra "lastdotdot" tracking turns out to be unnecessary.

PR:		bin/124924
2008-08-24 05:42:22 +00:00
kientzle
ad89b2721b Fix the cpio bug tested for by r182092 of usr.bin/cpio/test.
Since various 'find' incantations can emit container directories
in various orders, we cannot refuse to update a dir because it's
apparently the same age.

MFC after:	3 days
2008-08-24 05:01:01 +00:00
kib
958ba94773 Add -fno-omit-frame-pointer to CFLAGS used to compile crt1.c on amd64.
For gcc' __builtin_frame_address() to work, all call frames need to save
frame pointer. In particular, this is important for the upper frame that
should terminate the chain.

No objections from:	jhb
PR:	amd64/126543
MFC after:	1 week
2008-08-22 09:23:39 +00:00
jhb
50652bcc22 Add a "CACHING" section regarding the internal caching of kernel variables
and the ability to clear that cache.
2008-08-21 19:22:13 +00:00
ed
f827c5e9cb Remove grantpt.c, which should have been deleted in the MPSAFE TTY commit.
The routines in grantpt.c have been moved to ptsname.c in the MPSAFE TTY
layer, because grantpt() is now effectively a no-op. I forgot to remove
the corresponding source file from libc.
2008-08-20 09:43:46 +00:00
ed
cc3116a938 Integrate the new MPSAFE TTY layer to the FreeBSD operating system.
The last half year I've been working on a replacement TTY layer for the
FreeBSD kernel. The new TTY layer was designed to improve the following:

- Improved driver model:

  The old TTY layer has a driver model that is not abstract enough to
  make it friendly to use. A good example is the output path, where the
  device drivers directly access the output buffers. This means that an
  in-kernel PPP implementation must always convert network buffers into
  TTY buffers.

  If a PPP implementation would be built on top of the new TTY layer
  (still needs a hooks layer, though), it would allow the PPP
  implementation to directly hand the data to the TTY driver.

- Improved hotplugging:

  With the old TTY layer, it isn't entirely safe to destroy TTY's from
  the system. This implementation has a two-step destructing design,
  where the driver first abandons the TTY. After all threads have left
  the TTY, the TTY layer calls a routine in the driver, which can be
  used to free resources (unit numbers, etc).

  The pts(4) driver also implements this feature, which means
  posix_openpt() will now return PTY's that are created on the fly.

- Improved performance:

  One of the major improvements is the per-TTY mutex, which is expected
  to improve scalability when compared to the old Giant locking.
  Another change is the unbuffered copying to userspace, which is both
  used on TTY device nodes and PTY masters.

Upgrading should be quite straightforward. Unlike previous versions,
existing kernel configuration files do not need to be changed, except
when they reference device drivers that are listed in UPDATING.

Obtained from:		//depot/projects/mpsafetty/...
Approved by:		philip (ex-mentor)
Discussed:		on the lists, at BSDCan, at the DevSummit
Sponsored by:		Snow B.V., the Netherlands
dcons(4) fixed by:	kan
2008-08-20 08:31:58 +00:00
jhb
67b02c52de Add a new routine kvm_getcptime(3) for fetching the equivalent of
'kern.cp_time'.  For a live kernel it uses the sysctl.  For a crashdump,
it first checks to see if the kernel has a 'cp_time' global symbol.  If
it does, it uses that.  If that doesn't work, when it uses the recently
added kvm_getmaxcpu(3) and kvm_getpcpu(3) routines to walk all the CPUs
and sum up their counters.

MFC after:	1 week
2008-08-19 21:30:36 +00:00
jhb
78678aa46b Add two new routines to libkvm for working with per-CPU data:
kvm_getmaxcpu() and kvm_getpcpu().

MFC after:	1 week
2008-08-19 19:55:33 +00:00
kmacy
925bfa4378 atomic_fetchadd_int works on unsigned quantities - change
sigev_generation to be unsigned

MFC after:	1 month
2008-08-15 21:08:48 +00:00
emax
35aef144ac Import the uuid_enc_le(), uuid_dec_le(), uuid_enc_be() and
uuid_dec_be() functions. These routines are not part of the
DCE RPC API. They are provided for convenience.

Reviewed by:	marcel
Obtained from:	NetBSD
MFC after:	1 week
2008-08-14 22:23:16 +00:00
jasone
463ec8e02d Move CPU_SPINWAIT into the innermost spin loop, in order to allow faster
preemption while busy-waiting.

Submitted by:	Mike Schuster <schuster@adobe.com>
2008-08-14 17:31:42 +00:00
jasone
db987f53e4 Re-order the terms of an expression in arena_run_reg_dalloc() to correctly
detect whether the integer division table is large enough to handle the
divisor.  Before this change, the last two table elements were never used,
thus causing the slow path to be used for those divisors.
2008-08-14 17:03:29 +00:00
emax
4474d60a02 Import handy shorthand Bluetooth address (BD_ADDR) utility functions
from NetBSD and document them.

Obtained from:	NetBSD
MFC after:	1 week
2008-08-13 19:35:31 +00:00
ed
c392c35035 Change bpf(4) to use the cdevpriv API.
Right now the bpf(4) driver uses the cloning API to generate /dev/bpf%u.
When an application such as tcpdump needs a BPF, it opens /dev/bpf0,
/dev/bpf1, etc. until it opens the first available device node. We used
this approach, because our devfs implementation didn't allow
per-descriptor data.

Now that we can, make it use devfs_get_cdevpriv() to obtain the private
data. To remain compatible with the existing implementation, add a
symlink from /dev/bpf0 to /dev/bpf. I've already changed libpcap to
compile with HAVE_CLONING_BPF, which makes it use /dev/bpf. There may be
other applications in the base system (dhclient) that use the loop to
obtain a valid bpf.

Discussed on:	src-committers
Approved by:	csjp
2008-08-13 15:41:21 +00:00
marcel
54448b6186 Change the type of ti_traceme from a char to an int as its
address is passed to ps_pread for reading sizeof(int) bytes.
2008-08-13 00:03:35 +00:00
kientzle
0e0fb66ac7 Fix up test suite so it works again with the libarchive 1.x API.
In particular, FreeBSD 6 still uses the libarchive 1.x API and
this correction will permit MFCing new libarchive features back
to FreeBSD 6.
2008-08-11 01:19:36 +00:00
kientzle
aa6984275e Correct test_tar_large so it works correctly with the libarchive 1.x API. 2008-08-10 21:14:26 +00:00
kientzle
55e9379b97 Explain why two apparently-identical archive_read_data() calls
really should have different return values.
2008-08-10 03:13:42 +00:00
kientzle
58af11b815 MfP4: Joerg Sonnenberger's fixes to make 'ar' and 'pax' writers
robust against multiple calls to their destroy() functions.
2008-08-10 02:06:28 +00:00
des
c2c1c946ae Add sbuf_new_auto as a shortcut for the very common case of creating a
completely dynamic sbuf.

Obtained from:	Varnish
MFC after:	2 weeks
2008-08-09 11:14:05 +00:00
delphij
67cdccd740 Add prototype defination for setfib(2) to sys/socket.h. 2008-08-08 22:40:04 +00:00
cperciva
0b041e8f96 Remove variables which are assigned values and never used thereafter.
Found by:	LLVM/Clang Static Checker
Approved by:	jasone
2008-08-08 20:42:42 +00:00
das
9bb760c809 Remove some unused variables.
Reported by:	Intel C Compiler
2008-08-08 00:21:27 +00:00
das
ff948bbd69 In the line
#pragma STDC CX_LIMITED_RANGE   ON
the "ON" needs to be in caps. gcc doesn't understand this pragma
anyway and assumes it is always on in any case, but icc supports
it and cares about the case.
2008-08-08 00:15:16 +00:00
das
ec47be13ee Implement cproj{,f,l}(). 2008-08-07 15:07:48 +00:00
das
1a05561e34 Use cpack() and the gcc extension __imag__ to implement cimag() and
conj() instead of using expressions like z * I. The latter is bad for
several reasons:

1. It is implemented using arithmetic, which is unnecessary, and can
   generate floating point exceptions, contrary to the requirements on
   these functions.

2. gcc implements complex multiplication using a formula that breaks
   down for infinities, e.g., it gives INFINITY * I == nan + inf I.
2008-08-07 14:39:56 +00:00
dfr
e3e7adc95f Fix ia64 build. 2008-08-06 17:11:12 +00:00
dfr
eff18f23e9 Fix 64bt build. 2008-08-06 15:33:00 +00:00
dfr
ea3d7030c0 Add an implementation of the RPCSEC_GSS authentication protocol for RPC. This
is based on an old implementation from the University of Michigan with lots of
changes and fixes by me and the addition of a Solaris-compatible API.

Sponsored by:	Isilon Systems
Reviewed by:	alfred
2008-08-06 14:02:05 +00:00
marcel
57f1d21802 Cleanup for WARNS 6. 2008-08-06 03:14:18 +00:00
trhodes
4f7a011af7 Add EPERM to the ERRORS section.
PR:		125746
2008-08-04 22:22:17 +00:00
cperciva
5b18df3c73 Initialize "nconv" to a reasonable value in all code paths. Prior to
this commit, sprintf("%s", "") could fail depending on what happened
to be on the stack.

Found by:	LLVM/Clang Static Checker
2008-08-04 06:55:42 +00:00
cperciva
f33a169622 Set "max" to a reasonable value if BLOCKSIZE has a bogus unit. Prior
to this commit, "env BLOCKSIZE=4X df" prints not only "4X: unknown
blocksize" as expected, but sometimes also "maximum blocksize is 1G"
and "minimum blocksize is 512" depending on what happened to be on
the stack.

Found by:	LLVM/Clang Static Checker
2008-08-04 06:53:13 +00:00
cperciva
45f0d08992 Mark functions as __dead2 in order to help the LLVM static checker
understand which code paths aren't possible.

This commit eliminates 117 false positive bug reports of the form
"allocate memory; error out if pointer is NULL; use pointer".
2008-08-04 01:25:48 +00:00
scf
d2bab1788d Restructure and use different variables in the tests that involve
environ[0] to be more obvious that environ is not NULL before environ[0]
is tested.  Although I believe the previous code worked, this change
improves code maintainability.

Reviewed by:	ache
MFC after:	3 days
2008-08-03 22:47:23 +00:00