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John Szakmeister eb29d7ec0e Implement a more reliable detection scheme for os_unfair_lock. 
The core issue here is the weak linking of the symbol, and in certain
environments--for instance, using the latest Xcode (8.1) with the latest
SDK (10.12)--os_unfair_lock may resolve even though you're compiling on
a host that doesn't support it (10.11).

We can use the availability macros to circumvent this problem, and
detect that we're not compiling for a target that is going to support
them and error out at compile time.  The other alternative is to do a
runtime check, but that presents issues for cross-compiling.
2016-11-23 15:32:35 -05:00
bin Pass retain and exclude parameters to /pprof/symbol. 2016-01-29 19:59:06 -08:00
build-aux Update config.{guess,sub} from upstream. 2016-11-10 15:02:05 -08:00
doc Uniformly cast mallctl[bymib]() oldp/newp arguments to (void *). 2016-11-15 15:01:03 -08:00
include Enable overriding JEMALLOC_{ALLOC,FREE}_JUNK. 2016-11-22 10:58:58 -08:00
msvc Fixes to Visual Studio Project files 2016-11-04 09:59:05 -07:00
src Add pthread_atfork(3) feature test. 2016-11-17 15:14:57 -08:00
test Uniformly cast mallctl[bymib]() oldp/newp arguments to (void *). 2016-11-15 15:01:03 -08:00
.appveyor.yml Add an AppVeyor config 2016-06-09 21:06:22 +09:00
.autom4te.cfg Disable autom4te cache. 2014-09-02 17:49:29 -07:00
.gitattributes fix git handling of newlines on windows 2014-05-07 18:48:39 -04:00
.gitignore Add MS Visual Studio 2015 support 2016-02-20 10:55:23 -08:00
.travis.yml Add Travis-CI configuration 2016-07-07 13:16:05 -07:00
autogen.sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
ChangeLog Update ChangeLog for 4.3.1. 2016-11-07 16:22:02 -08:00
config.stamp.in Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
configure.ac Implement a more reliable detection scheme for os_unfair_lock. 2016-11-23 15:32:35 -05:00
COPYING Update copyright dates for 2016. 2016-02-28 15:20:40 -08:00
coverage.sh Add test code coverage analysis. 2013-12-06 18:50:51 -08:00
INSTALL Document how to use --cache configure option. 2016-11-16 10:56:40 -08:00
jemalloc.pc.in Update project URL. 2016-09-12 11:56:24 -07:00
Makefile.in Add packing test, which verifies stable layout policy. 2016-11-15 13:08:33 -08:00
README Update project URL. 2016-09-12 11:56:24 -07:00

README 

jemalloc is a general purpose malloc(3) implementation that emphasizes
fragmentation avoidance and scalable concurrency support.  jemalloc first came
into use as the FreeBSD libc allocator in 2005, and since then it has found its
way into numerous applications that rely on its predictable behavior.  In 2010
jemalloc development efforts broadened to include developer support features
such as heap profiling and extensive monitoring/tuning hooks.  Modern jemalloc
releases continue to be integrated back into FreeBSD, and therefore versatility
remains critical.  Ongoing development efforts trend toward making jemalloc
among the best allocators for a broad range of demanding applications, and
eliminating/mitigating weaknesses that have practical repercussions for real
world applications.

The COPYING file contains copyright and licensing information.

The INSTALL file contains information on how to configure, build, and install
jemalloc.

The ChangeLog file contains a brief summary of changes for each release.

URL: http://jemalloc.net/