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Libraries updates and cleanup

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* Updating common/lib
 * Updating lib/csu
 * Updating lib/libc
 * Updating libexec/ld.elf_so
 * Corrected test on __minix in featuretest to actually follow the
   meaning of the comment.
 * Cleaned up _REENTRANT-related defintions.
 * Disabled -D_REENTRANT for libfetch
 * Removing some unneeded __NBSD_LIBC defines and tests

Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
This commit is contained in:
Lionel Sambuc
2012-11-15 12:06:41 +01:00
parent f6aac1c3b5
commit f14fb60209
1285 changed files with 44244 additions and 14308 deletions
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53
lib/libc/stdlib/jemalloc.3
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@@ -34,9 +34,9 @@
.\" @(#)malloc.3 8.1 (Berkeley) 6/4/93
.\" $FreeBSD: src/lib/libc/stdlib/malloc.3,v 1.73 2007/06/15 22:32:33 jasone Exp $
.\"
.Dd May 14, 2010
.Os
.Dd June 21, 2011
.Dt JEMALLOC 3
.Os
.Sh NAME
.Nm jemalloc
.Nd the default system allocator
@@ -172,8 +172,11 @@ does not zero memory that was previously allocated.
This is intended for debugging and will impact performance negatively.
.El
.Pp
Extra care should be taken when enabling
any of the options in production environments.
The
.Em J
.Em A ,
.Em J ,
and
.Em Z
options are intended for testing and debugging.
@@ -291,6 +294,28 @@ the performance impact for storing such information would be prohibitive.
There are a number of allocator implementations available on the Internet
which focus on detecting and pinpointing problems by trading performance for
extra sanity checks and detailed diagnostics.
.Sh ENVIRONMENT
The following environment variables affect the execution of the allocation
functions:
.Bl -tag -width ".Ev MALLOC_OPTIONS"
.It Ev MALLOC_OPTIONS
If the environment variable
.Ev MALLOC_OPTIONS
is set, the characters it contains will be interpreted as flags to the
allocation functions.
.El
.Sh EXAMPLES
To dump core whenever a problem occurs:
.Pp
.Bd -literal -offset indent
ln -s 'A' /etc/malloc.conf
.Ed
.Pp
To specify in the source that a program does no return value checking
on calls to these functions:
.Bd -literal -offset indent
_malloc_options = "X";
.Ed
.Sh DIAGNOSTICS
If any of the memory allocation/deallocation functions detect an error or
warning condition, a message will be printed to file descriptor
@@ -316,28 +341,6 @@ this function is likely to result in a crash or deadlock.
.Pp
All messages are prefixed by
.Dq Ao Ar progname Ac Ns Li \&: Pq malloc .
.Sh ENVIRONMENT
The following environment variables affect the execution of the allocation
functions:
.Bl -tag -width ".Ev MALLOC_OPTIONS"
.It Ev MALLOC_OPTIONS
If the environment variable
.Ev MALLOC_OPTIONS
is set, the characters it contains will be interpreted as flags to the
allocation functions.
.El
.Sh EXAMPLES
To dump core whenever a problem occurs:
.Pp
.Bd -literal -offset indent
ln -s 'A' /etc/malloc.conf
.Ed
.Pp
To specify in the source that a program does no return value checking
on calls to these functions:
.Bd -literal -offset indent
_malloc_options = "X";
.Ed
.Sh SEE ALSO
.Xr emalloc 3 ,
.Xr malloc 3 ,