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a62719ba90
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Florian Weimer a62719ba90 malloc: Prevent arena free_list from turning cyclic [BZ #19048] 
[BZ# 19048]
	* malloc/malloc.c (struct malloc_state): Update comment.  Add
	attached_threads member.
	(main_arena): Initialize attached_threads.
	* malloc/arena.c (list_lock): Update comment.
	(ptmalloc_lock_all, ptmalloc_unlock_all): Likewise.
	(ptmalloc_unlock_all2): Reinitialize arena reference counts.
	(deattach_arena): New function.
	(_int_new_arena): Initialize arena reference count and deattach
	replaced arena.
	(get_free_list, reused_arena): Update reference count and deattach
	replaced arena.
	(arena_thread_freeres): Update arena reference count and only put
	unreferenced arenas on the free list.
2015-10-28 21:29:23 +01:00
argp Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
assert Add ersatz _Static_assert on older C hosts 2015-02-07 14:43:27 -08:00
benchtests Add a new benchmark for isinf/isnan/isnormal/isfinite/fpclassify. The test uses 2 arrays with 1024 doubles, one with 99% finite FP numbers (10% zeroes, 10% negative) and 1% inf/NaN, the other with 50% inf, and 50% Nan. 2015-09-18 16:02:38 +01:00
bits Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
catgets Fix trailing space. 2015-08-08 15:54:40 -07:00
conf (NEED_INETADDR, NEED_INETATON): Define to 1, not empty. 1995-09-08 20:24:57 +00:00
conform Remove pre-GCC-4.7 conform/ test XFAILs. 2015-10-27 17:13:14 +00:00
crypt Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
csu Fix gcrt0.o compilation 2015-08-07 01:38:39 +02:00
ctype Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
debug tst-backtrace4: fix a warning message 2015-10-21 11:24:27 -04:00
dirent Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
dlfcn Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
elf Add AT_PLATFORM to _dl_aux_init () 2015-10-27 17:27:41 -02:00
gmon Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
grp Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
gshadow Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
hesiod Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
hurd Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
iconv Fix BZ #19012 -- iconv_open leaks memory on error path. 2015-10-05 20:03:48 -07:00
iconvdata Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
include Mark ld.so internel __fxstatat64 hidden 2015-10-19 12:01:48 -07:00
inet Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
intl Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
io Move io/tst-fcntl temporary file creation to do_prepare. 2015-10-21 23:37:02 +00:00
libidn Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
libio Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
locale Gracefully handle incompatible locale data 2015-10-27 13:33:26 +01:00
localedata lt_LT: change currency symbol to the euro [BZ #18953] 2015-10-17 00:28:13 -04:00
login Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
mach Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
malloc malloc: Prevent arena free_list from turning cyclic [BZ #19048] 2015-10-28 21:29:23 +01:00
manual Require GCC 4.7 or later to build glibc. 2015-10-27 16:34:12 +00:00
math Fix i386/x86_64 fesetenv SSE exception clearing (bug 19181). 2015-10-28 18:50:20 +00:00
mathvec This is update for configure, build and install of vector math library. 2015-05-14 18:07:06 +03:00
misc Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
nis Assume that SOCK_CLOEXEC is available and works 2015-10-17 12:02:37 +02:00
nptl Add -std=gnu11 and -std=c11 NPTL initializers tests. 2015-10-27 21:48:34 +00:00
nptl_db Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
nscd use -fstack-protector-strong when available 2015-10-19 15:36:48 -04:00
nss Convert 113 more function definitions to prototype style (files with assertions). 2015-10-20 11:54:09 +00:00
po Update de.po from Translation Project (bug 4404). 2015-09-16 16:51:28 +00:00
posix Convert a few more function definitions to prototype style. 2015-10-21 11:57:23 +00:00
pwd Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
resolv Remove GCC version conditionals on -Wmaybe-uninitialized pragmas. 2015-10-27 23:42:20 +00:00
resource Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
rt Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
scripts Support PLT and GOT references in local PIC check 2015-10-14 06:00:02 -07:00
setjmp Modify several tests to use test-skeleton.c 2015-07-15 15:10:23 +05:30
shadow Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
signal Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
socket Convert 24 more function definitions to prototype style (array parameters). 2015-10-20 11:51:03 +00:00
soft-fp Remove GCC version conditionals on -Wmaybe-uninitialized pragmas. 2015-10-27 23:42:20 +00:00
stdio-common Convert 69 more function definitions to prototype style (line wrap cases). 2015-10-19 21:23:47 +00:00
stdlib Remove GCC version conditionals on -Wmaybe-uninitialized pragmas. 2015-10-27 23:42:20 +00:00
streams Convert 69 more function definitions to prototype style (line wrap cases). 2015-10-19 21:23:47 +00:00
string Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
sunrpc Convert a few more function definitions to prototype style. 2015-10-21 11:57:23 +00:00
sysdeps Fix i386/x86_64 fesetenv SSE exception clearing (bug 19181). 2015-10-28 18:50:20 +00:00
sysvipc Convert 69 more function definitions to prototype style (line wrap cases). 2015-10-19 21:23:47 +00:00
termios Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
time Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
timezone Update timezone/Makefile to use -Wno-unused-variable 2015-10-07 15:04:49 -07:00
wcsmbs Convert miscellaneous function definitions to prototype style. 2015-10-20 21:27:22 +00:00
wctype Convert 703 function definitions to prototype style. 2015-10-16 20:21:49 +00:00
.gitattributes exempt timezone files from the no-bad-whitespace policy 2009-06-15 18:15:54 +02:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Add arm-nacl port. 2015-04-17 09:02:19 -07:00
aclocal.m4 Make aclocal.m4 comment mention updating install.texi for autoconf version. 2014-10-31 22:44:17 +00:00
BUGS [BZ #5222] 2007-10-28 08:24:07 +00:00
ChangeLog malloc: Prevent arena free_list from turning cyclic [BZ #19048] 2015-10-28 21:29:23 +01:00
ChangeLog.1 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.2 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.3 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.4 * Makefile (distribute): Add ChangeLog.[0-9]. 1995-04-14 03:52:54 +00:00
ChangeLog.5 * sysdeps/posix/getaddrinfo.c: Implement configuration file 2006-05-04 06:38:07 +00:00
ChangeLog.6 Update. 1997-07-22 00:10:33 +00:00
ChangeLog.7 Update. 1997-11-18 02:50:07 +00:00
ChangeLog.8 Update. Old logs are in ChangeLog.7. 1998-08-11 18:44:11 +00:00
ChangeLog.9 Update. 2000-04-28 06:14:43 +00:00
ChangeLog.10 Update. 2000-02-29 01:13:44 +00:00
ChangeLog.11 2.5-18.1 2007-07-12 18:26:36 +00:00
ChangeLog.12 2.5-18.1 2007-07-12 18:26:36 +00:00
ChangeLog.13 Update. 2002-10-03 16:37:04 +00:00
ChangeLog.14 Update. 2004-04-20 04:28:00 +00:00
ChangeLog.15 Split out ChangeLog.15 at 2.3 branch point 2005-02-16 07:34:17 +00:00
ChangeLog.16 Fix typo in name 2012-06-21 16:45:27 +02:00
ChangeLog.17 Revert "Sun agreed to a change of the license for the RPC code to a BSD-like license." 2010-06-27 19:34:03 -07:00
ChangeLog.old-ports Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aarch64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aix Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-alpha Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-am33 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-arm Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-cris Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-hppa Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-ia64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-linux-generic Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-m68k Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-microblaze Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-mips Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-powerpc Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-tile Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
config.h.in Remove -mavx2 configure tests. 2015-10-28 13:29:03 +00:00
config.make.in Remove sysdeps/nptl/configure.ac. 2015-10-27 21:46:03 +00:00
configure Use -std=gnu11 instead of -std=gnu99. 2015-10-27 21:47:22 +00:00
configure.ac Use -std=gnu11 instead of -std=gnu99. 2015-10-27 21:47:22 +00:00
CONFORMANCE Move __STDC_* predefined macros from features.h to stdc-predef.h. 2012-02-22 12:53:04 +00:00
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
cppflags-iterator.mk 2004-03-11 Jeroen Dekkers <jeroen@dekkers.cx> 2004-03-14 19:13:17 +00:00
extra-lib.mk Remove NOT_IN_libc 2014-11-24 15:03:45 +05:30
extra-modules.mk Remove NOT_IN_libc 2014-11-24 15:03:45 +05:30
gen-locales.mk Split locale generation snippet into a separate file 2015-05-13 13:05:28 +05:30
INSTALL Require GCC 4.7 or later to build glibc. 2015-10-27 16:34:12 +00:00
libc-abis A few more archs have IFUNC support. 2010-03-17 02:43:12 -07:00
LICENSES Expand LICENSES file. 2012-12-05 21:56:15 +00:00
Makeconfig Use -std=gnu11 instead of -std=gnu99. 2015-10-27 21:47:22 +00:00
Makefile Use -std=gnu11 instead of -std=gnu99. 2015-10-27 21:47:22 +00:00
Makefile.in Remove redundant C locale settings. 2014-06-07 19:58:36 +00:00
Makerules Remove -static-libgcc configure test. 2015-10-15 19:32:58 +00:00
NAMESPACE Add and update many more entries. 2000-03-20 00:42:58 +00:00
NEWS malloc: Prevent arena free_list from turning cyclic [BZ #19048] 2015-10-28 21:29:23 +01:00
o-iterator.mk Fri Mar 17 12:58:37 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> 1995-03-17 18:42:51 +00:00
PROJECTS Update. 2004-10-12 06:19:23 +00:00
README Another pointless update in README. 2015-02-11 14:39:30 -08:00
Rules Let tests result in UNSUPPORTED; use that for unbuildable C++ cases 2015-03-10 15:13:14 -07:00
shlib-versions This is update for configure, build and install of vector math library. 2015-05-14 18:07:06 +03:00
test-skeleton.c test-skeleton: add usage information 2015-08-05 04:40:00 -04:00
version.h Open development for 2.23. 2015-08-05 03:01:50 -04:00
WUR-REPORT * posix/unistd.h (setuid, setreuid, seteuid, setresuid): 2012-08-01 18:12:58 +02:00

README 

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
implement the operating system behavior seen by user applications.
In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.  The current
GNU/Hurd support requires out-of-tree patches that will eventually be
incorporated into an official GNU C Library release.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 2.6.32 or later.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arm-*-linux-gnueabi
	hppa-*-linux-gnu	Not currently functional without patches.
	i[4567]86-*-linux-gnu
	x86_64-*-linux-gnu	Can build either x86_64 or x32
	ia64-*-linux-gnu
	m68k-*-linux-gnu
	microblaze*-*-linux-gnu
	mips-*-linux-gnu
	mips64-*-linux-gnu
	powerpc-*-linux-gnu	Hardware or software floating point, BE only.
	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu
	tilegx-*-linux-gnu
	tilepro-*-linux-gnu

If you are interested in doing a port, please contact the glibc
maintainers; see http://www.gnu.org/software/libc/ for more
information.

See the file INSTALL to find out how to configure, build, and install
the GNU C Library.  You might also consider reading the WWW pages for
the C library at http://www.gnu.org/software/libc/.

The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory.  The manual is still being updated
and contains some known errors and omissions; we regret that we do not
have the resources to work on the manual as much as we would like.  For
corrections to the manual, please file a bug in the `manual' component,
following the bug-reporting instructions below.  Please be sure to check
the manual in the current development sources to see if your problem has
already been corrected.

Please see http://www.gnu.org/software/libc/bugs.html for bug reporting
information.  We are now using the Bugzilla system to track all bug reports.
This web page gives detailed information on how to report bugs properly.

The GNU C Library is free software.  See the file COPYING.LIB for copying
conditions, and LICENSES for notices about a few contributions that require
these additional notices to be distributed.  License copyright years may be
listed using range notation, e.g., 1996-2015, indicating that every year in
the range, inclusive, is a copyrightable year that would otherwise be listed
individually.