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H.J. Lu d3d9c95aef Support PLT and GOT references in local PIC check
Linker in binutils 2.26 and newer generate GOT references instead
PLT references when -z now is passed to linker.  We need to extend
scripts/localplt.awk to allow PLT or GOT references.

	[BZ #19007]
	* scripts/localplt.awk: Also allow GOT references.
	* sysdeps/unix/sysv/linux/i386/localplt.data: Mark
	_Unwind_Find_FDE, calloc, memalign, realloc and __libc_memalign
	with "+ REL R_386_GLOB_DAT".
	* sysdeps/x86_64/localplt.data: Mark calloc, memalign, realloc
	and __libc_memalign with "+ RELA R_X86_64_GLOB_DAT".
2015-10-14 06:00:02 -07:00
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 Test for weak undefined symbols in linknamespace.pl. 2015-09-18 00:52:07 +00:00
crypt Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
csu Fix gcrt0.o compilation 2015-08-07 01:38:39 +02:00
ctype Fix isblank / isascii / toascii namespace (bug 17635). 2015-01-05 15:06:57 +00:00
debug Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
dirent Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +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 [BZ #17250] Fix static dlopen default library search path 2015-09-25 09:37:12 +01:00
gmon Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
grp Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
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 Remove unusued variable 2015-10-10 16:44:42 +02:00
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 Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
inet Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
intl Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
io Readd O_LARGEFILE flag for openat64 (bug 18781) 2015-08-10 18:10:19 +02:00
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 Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
locale strcoll: Remove incorrect STRDIFF-based optimization (Bug 18589). 2015-10-08 16:41:45 -04:00
localedata relocate localedata ChangeLog entries 2015-08-19 17:55:06 -04:00
login Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
mach Add missing __mach_host_self_ symbol in Versions 2015-09-22 02:02:20 +02:00
malloc malloc: Consistently apply trim_threshold to all heaps (Bug 17195) 2015-10-07 22:21:36 -04:00
manual Fix manual argument order for posix_fallocate64 (Bug 19086). 2015-10-07 14:10:43 -04:00
math Fix lrint, llrint missing exceptions close to overflow threshold (bug 19094). 2015-10-08 22:17:45 +00:00
mathvec This is update for configure, build and install of vector math library. 2015-05-14 18:07:06 +03:00
misc Use __pthread_setcancelstate in libc.a 2015-09-17 16:38:54 -07:00
nis nss_nis: Do not call malloc_usable_size [BZ #10432] 2015-10-06 14:03:35 +02:00
nptl nptl: Add NPTL cases for cancellation failures cases 2015-10-09 15:50:27 -03:00
nptl_db Fix DTV race, assert, DTV_SURPLUS Static TLS limit, and nptl_db garbage 2015-03-17 00:31:49 -03:00
nscd nscd: drop selinux/flask.h include 2015-07-08 03:18:27 -04:00
nss Fix i386 build after put*ent hardening changes. 2015-10-02 11:14:19 +00:00
po Update de.po from Translation Project (bug 4404). 2015-09-16 16:51:28 +00:00
posix Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
pwd Harden putpwent, putgrent, putspent, putspent against injection [BZ #18724] 2015-10-02 11:34:13 +02:00
resolv Fix several build failures with GCC6 due to unused static variables. 2015-09-18 20:42:54 +01:00
resource Fix nice getpriority, setpriority namespace (bug 18553). 2015-06-17 20:22:39 +00:00
rt Fix mq_receive, mq_send mq_timed* namespace (bug 18545). 2015-06-17 20:19:04 +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 Fix psignal, psiginfo declaration conditions (bug 18483). 2015-06-05 21:14:16 +00:00
socket Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
soft-fp Fix undefined warning messages in GCC 6. 2015-08-27 08:09:49 -07:00
stdio-common Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
stdlib Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
streams Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
string Fix typo in bug-strcoll2 (Bug 18589) 2015-10-09 16:38:04 -04:00
sunrpc Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
sysdeps Support PLT and GOT references in local PIC check 2015-10-14 06:00:02 -07:00
sysvipc Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
termios Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
time Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
timezone Update timezone/Makefile to use -Wno-unused-variable 2015-10-07 15:04:49 -07:00
wcsmbs Add dependencies on needed locales in each subdir tests (bug 18969) 2015-10-12 15:18:08 +02:00
wctype Fix regex wctype namespace (bug 18495). 2015-06-05 20:04:47 +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
BUGS [BZ #5222] 2007-10-28 08:24:07 +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
ChangeLog Support PLT and GOT references in local PIC check 2015-10-14 06:00:02 -07:00
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
INSTALL timezone: add a configure flag to disable program install 2015-09-18 19:39:46 -04:00
LICENSES Expand LICENSES file. 2012-12-05 21:56:15 +00:00
Makeconfig Don't use -Wno-error=undef. 2015-08-20 20:50:05 +00:00
Makefile Prevent check-local-headers.sh hang. 2015-09-14 09:57:58 -04:00
Makefile.in Remove redundant C locale settings. 2014-06-07 19:58:36 +00:00
Makerules Fix some places to use $(LN_S) makefile variable. 2015-07-08 14:21:41 -07:00
NAMESPACE Add and update many more entries. 2000-03-20 00:42:58 +00:00
NEWS Support PLT and GOT references in local PIC check 2015-10-14 06:00:02 -07:00
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
WUR-REPORT * posix/unistd.h (setuid, setreuid, seteuid, setresuid): 2012-08-01 18:12:58 +02:00
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
config.h.in Fix powerpc32 llrint, llrintf bad exceptions (bug 16422). 2015-10-13 00:52:54 +00:00
config.make.in Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
configure Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
configure.ac Add a test case for C++11 thread_local support 2015-10-06 21:27:55 +02:00
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
libc-abis A few more archs have IFUNC support. 2010-03-17 02:43:12 -07:00
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
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

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.