Commit Graph

13668 Commits

Author SHA1 Message Date
pluknet
3061aea0d2 Remove sysctl vm.max_proc_mmap used to protect from KVA space exhaustion.
As it was pointed out by Alan Cox, that no longer serves its purpose with
the modern UMA allocator compared to the old one used in 4.x days.

The removal of sysctl eliminates max_proc_mmap type overflow leading to
the broken mmap(2) seen with large amount of physical memory on arches
with factually unbound KVA space (such as amd64).  It was found that
slightly less than 256GB of physmem was enough to trigger the overflow.

Reviewed by:	alc, kib
Approved by:	avg (mentor)
MFC after:	2 months
2011-02-24 09:22:56 +00:00
dim
e2579533e1 Fix the 32-bit build stage on amd64 when WITH_CTF is enabled. It seems
ctfconvert will corrupt object files that are compiled with -g, if it is
not run with -g itself.

To fix it, remove -g from CFLAGS in lib/librt/Makefile.  If you need to
compile this library with debug info, use DEBUG_FLAGS=-g instead, which
will work correctly, even when using WITH_CTF.
2011-02-23 21:17:38 +00:00
jchandra
33cfbb02c4 Fix bzero() for 64-bit.
The existing implementation of bzero incorrectly clears bytes when the
start address is not word aligned. Fix it by using REG_SHI macro which
works on both 32 and 64 bit.

Submitted by:	Artem Belevich (fbsdlist at src cx)
2011-02-22 07:49:51 +00:00
brucec
6d9b42b486 Fix typos - remove duplicate "the".
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00
dim
a0b20b5d1f Upgrade our copy of llvm/clang to r126079, from upstream's trunk.
This contains many improvements, primarily better C++ support, an
integrated assembler for x86 and support for -pg.
2011-02-20 19:33:47 +00:00
dim
39fcc9a984 Vendor import of clang trunk r126079:
http://llvm.org/svn/llvm-project/cfe/trunk@126079
2011-02-20 13:06:31 +00:00
dim
cbb70ce070 Vendor import of llvm trunk r126079:
http://llvm.org/svn/llvm-project/llvm/trunk@126079
2011-02-20 12:57:14 +00:00
murray
13343e496d Add complex(3) manual page documenting our partial support for C99
complex arithmetic in libm.

Reviewed by:	David Schultz <das@FreeBSD.org>
MFC after:	2 weeks
2011-02-20 05:29:00 +00:00
ed
ea4dbdacd2 Add a utility, utxrm(8).
Most of the ports I broke when I imported utmpx, were simple management
utilities for the utmp database, allowing you to add/remove entries
manually.

Add a small tool called utxrm(8), which allows you to remove an entry
from the utmpx database by hand. This is useful when a login daemon
crashes or fails to remove the entry during shutdown.
2011-02-19 11:44:04 +00:00
ed
e01efc1924 Properly styleify utmpx code and document error codes in man page.
Submitted by:	Garrett Cooper
2011-02-19 11:31:56 +00:00
nwhitehorn
699ef3129b Turn off default generation of userland dot symbols on powerpc64 now that
we have a binutils that supports it. Kernel dot symbols remain on to assist
DDB.
2011-02-18 21:44:53 +00:00
dim
f58eeaae2e Fix some leftover binaries and shared libraries in the system that still
have an executable stack, due to linking in hand-assembled .S or .s
files, that have no .GNU-stack sections:

RWX --- ---  /lib/libcrypto.so.6
RWX --- ---  /lib/libmd.so.5
RWX --- ---  /lib/libz.so.6
RWX --- ---  /lib/libzpool.so.2
RWX --- ---  /usr/lib/liblzma.so.5

These were found using scanelf, from the sysutils/pax-utils port.

Reviewed by:	kib
2011-02-15 22:03:09 +00:00
ed
fd358eea37 Don't forget to bump man page date for r218711. 2011-02-15 20:07:35 +00:00
ed
2f7f154990 Remove dead reference to regexp(3). Use regex(3) instead.
PR:		docs/149950
Submitted by:	arundel@
2011-02-15 20:04:13 +00:00
brucec
3835cbd871 Document some more sysconf(3) variables.
MFC after:	1 month
2011-02-13 17:43:56 +00:00
kib
abc49a2c3b Replace ERROR() macro with inline function. In-tree gcc cannot tolerate
the construct like printf("%\s", NULL) resulting from macroexpand of
ERROR(u, NULL), making it impossible to use LIBUFS_DEBUGGING.

With inline function, compiler cannot detect the NULL argument to
known function and does not try to convert it into puts().

In collaboration with:	pho
2011-02-12 12:46:00 +00:00
imp
dcd87e72a9 Revert last commit: CPUTYPE will be defined here 2011-02-11 02:34:26 +00:00
imp
290cb0908c Don't require CPUTYPE to be defined for ARM, but use it if it is. 2011-02-11 02:24:04 +00:00
das
8a0b136ad6 Fix a bug where the wrong argument was passed to SET_FLOAT_WORD().
This bug results in a type mismatch that happens to be harmless
because of the way SET_FLOAT_WORD() works.

Submitted by:	bde
2011-02-10 07:38:38 +00:00
das
0b105a7a38 Fix a bug where the wrong argument was passed to INSERT_WORDS().
This bug results in a type mismatch that happens to be harmless
because of the way INSERT_WORDS() works.

Submitted by:	bde
2011-02-10 07:38:13 +00:00
das
b0f6e7189c For small arguments, these functions use simple approximations,
e.g. cos(small) = 1, sin(small) = small.  This commit tightens
the thresholds at which the simple approximations are used.

Reviewed by:	bde
2011-02-10 07:37:50 +00:00
das
f2ff0c6d0e Fix a bogus threshold that was copied from the double precision version.
This commit should have no effect on correctness; it merely changes the
threshold at which a simpler approximation can be used.

Reviewed by:	bde
2011-02-10 07:37:29 +00:00
imp
7d2a04ecdc sys/rman.h now requires sys/types.h. Include it to make the API match
the man page again.

Submitted by:	Raphael Kubo da Costa
MFC after:	2 weeks
2011-02-10 04:53:09 +00:00
jkim
365538a229 Introduce a non-portable function pthread_getthreadid_np(3) to retrieve
calling thread's unique integral ID, which is similar to AIX function of
the same name.  Bump __FreeBSD_version to note its introduction.

Reviewed by:	kib
2011-02-07 21:26:46 +00:00
jilles
a86d22f277 rfork_thread(3): Mark deprecated in favor of pthread_create(3). 2011-02-06 23:26:14 +00:00
dougb
31eda3d2ca Update to BIND 9.6.3, the latest from ISC on the 9.6 branch.
All 9.6 users with DNSSEC validation enabled should upgrade to this
version, or the latest version in the 9.7 branch, prior to 2011-03-31
in order to avoid validation failures for names in .COM as described
here:

https://www.isc.org/announcement/bind-9-dnssec-validation-fails-new-ds-record

In addition the fixes for this and other bugs, there are also the
following:

  * Various fixes to kerberos support, including GSS-TSIG
  * Various fixes to avoid leaking memory, and to problems that could
    prevent a clean shutdown of named
2011-02-06 22:46:07 +00:00
dougb
8287cb3f73 Vendor import of BIND 9.6.3 2011-02-05 03:14:55 +00:00
kib
88f7b7c78b Remove duplicate .note.GNU-stack section declaration.
Reported by:	arundel
2011-02-04 21:54:06 +00:00
kib
0beb03c7a6 Remove duplicate .note.GNU-stack section declaration. bcopy already
made the neccessary provisions.

Reported by:	arundel
2011-02-04 21:04:00 +00:00
jilles
dbecc33067 Make sys_signame upper case.
This matches the constants from <signal.h> with 'SIG' removed, which POSIX
requires kill and trap to accept and 'kill -l' to write.

'kill -l', 'trap', 'trap -l' output is now upper case.

In Turkish locales, signal names with an upper case 'I' are now accepted,
while signal names with a lower case 'i' are no longer accepted, and the
output of 'killall -l' now contains proper capital 'I' without dot instead
of a dotted capital 'I'.
2011-02-04 16:40:50 +00:00
uqs
d53cb8f4e9 libkvm: fix logic inversion introduced with last commit
Reported by:	Brandon Gooch <jamesbrandongooch@gmail.com>
Pointy hat to:	uqs
2011-02-02 17:01:26 +00:00
imp
705cc0b145 Whitespace nit 2011-02-01 22:50:23 +00:00
mm
ae0c590545 Reintroduce bugfix from r210103 and fix xz on strong-aligned architectures.
This fix was accidentially reverted with the 5.0.0 update in r215187.

PR:		bin/154310
Submitted by:	Michael Moll <kvedulv@kvedulv.de>
MFC after:	3 days
2011-02-01 10:28:05 +00:00
jchandra
cb008dd1af Fix n32 compile.
These changes are needed to fix n32 compile after the recent change of
mips n32 MACHINE_ARCH to mipsn32eb/mipsn32el.

Reviewed by:	imp, bz (earlier version)
2011-01-27 14:16:12 +00:00
kib
736c72ab1a Emit .note.GNU-stack for the syscall stubs generated by libc only on
architectures that support this .note. In particular, do not unneccessary
emit the notes on ia64 and sparc64, which ABI require non-executable stacks.

Tested by:	marcel
2011-01-25 21:06:49 +00:00
kan
fa976d4a0a Do not allocate buffer to hold data for zero-sized sections. 2011-01-25 19:17:50 +00:00
kib
de1b195cba Document PT_FLAG_FORKED, PT_FOLLOW_FORK, pl_tdname and pl_child_pid.
MFC after:	2 weeks
2011-01-25 11:02:12 +00:00
uqs
56b21e21af libkvm: Unbreak build for powerpc64/powerpc
This slipped through my testing due to the recent roto-tiling of the
ARCH/TARGET parts that I need to catch up with. Mea culpa.
2011-01-24 11:06:40 +00:00
uqs
d31dae72d7 libkvm: fix process runtime calculation on crashdumps
Fix a long standing bug, where the procs ticks where assumed to be in
us. Instead, read cpu_tick_frequency from the kernel and use the same
logic to convert runtime. This is still too optimistic in that it
assumes cpu_tick_frequency is available and fixed. Since this function
is only called on crashdumps, I think we can live with that. Testing has
shown the values to be correct for different kern.hz inside Virtualbox.

Bump WARNS. Alignment issues on some archs mean this is still at 3.

Reviewed by:	bde
2011-01-23 11:08:36 +00:00
uqs
7fdf187c11 libkvm code janitoring
- make WARNS=6 clean for archs w/o strict alignment requirments
- add const, ANSIfy, remove unused vars, cast types for comparison
- thanks to differing definitions of VM_MIN_ADDRESS across our archs, we
  need to trick the compiler to not complain about signedness. We could
  either fix VM_MIN_ADDRESS to always be a simple integer or make the
  check conditional on $ARCH.

Closes PRs:	kern/42386, kern/83364
Reviewed by:	bde
2011-01-23 11:08:28 +00:00
jilles
54c963102e getgroups(2): Remove mention of <sys/param.h> and refer to sysconf(3).
Because {NGROUPS_MAX} may become variable, its value should be obtained
using sysconf(3). If a #define is used anyway, it should be obtained by
including <limits.h> as that is in POSIX like getgroups(2) itself is.
<sys/param.h> is not in POSIX.

MFC after:	1 week
2011-01-21 22:15:17 +00:00
mdf
6b5f615b7c Introduce signed and unsigned version of CTLTYPE_QUAD, renaming
existing uses.  Rename sysctl_handle_quad() to sysctl_handle_64().
2011-01-19 23:00:25 +00:00
des
ae98b060b9 Fix a bug related to connection caching which could cause a crash after
a STAT command.

PR:		kern/153748 (different patch)
Submitted by:	Mark Johnston <markjdb@gmail.com>
MFC after:	2 weeks
2011-01-17 17:25:46 +00:00
jilles
38afc28719 mknod(2): The required include is <sys/stat.h>, not <unistd.h>.
This is what SUSv4 requires, and also the only thing that works if strict
standards compliance is requested or mknodat() is needed.

PR:		standards/123688
Submitted by:	gcooper
MFC after:	1 week
2011-01-16 21:59:50 +00:00
kib
8ffb81ed62 Mark csu on PowerPC as not requiring executable stack.
Reviewed and tested by:	nwhitehorn
2011-01-14 11:34:58 +00:00
kib
897b773ff4 Mark assembler sources from libc as working with non-executable stack.
Reviewed and tested by:	nwhitehorn
2011-01-14 11:33:40 +00:00
kib
469d0e8498 Mark libcompiler_rt as not needed executable stack on powerpc.
Reviewed and tested by:	nwhitehorn
2011-01-14 11:23:39 +00:00
kib
435503f326 The (%esp & 0xf) == 0 should be true before the call instruction is
executed, for the properly aligned stack.

Reported and tested by:	rstone
Pointy hat to:	kib
MFC after:	3 days
2011-01-13 23:00:22 +00:00
dim
ab827c028e Apply a workaround for a binutils issue with the .note.ABI-tag section
generated from lib/csu/common/crtbrand.c (which ultimately ends up in
executables and shared libraries, via crt1.o, gcrt1.o or Scrt1.o).

For all arches except sparc, gcc emits the section directive for the
abitag struct in crtbrand.c with a PROGBITS type.  However, newer
versions of binutils (after 2.16.90) require the section to be of NOTE
type, to guarantee that the .note.ABI-tag section correctly ends up in
the first page of the final executable.

Unfortunately, there is no clean way to tell gcc to use another section
type, so crtbrand.c (or the C files that include it) must be compiled in
multiple steps:

- Compile the .c file to a .s file.
- Edit the .s file to change the 'progbits' type to 'note', for the section
  directive that defines the .note.ABI-tag section.
- Compile the .s file to an object file.

These steps are done in the invididual Makefiles for each applicable arch.

Reviewed by:	kib
2011-01-13 20:44:31 +00:00
davidxu
3e5f77d5aa Fix a typo.
Submitted by:	avg
2011-01-11 01:57:02 +00:00