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H.J. Lu efbbd9c33a ldconfig/x86: Store ISA level in cache and aux cache
Store ISA level in the portion of the unused upper 32 bits of the hwcaps
field in cache and the unused pad field in aux cache.  ISA level is stored
and checked only for shared objects in glibc-hwcaps subdirectories.  The
shared objects in the default directories aren't checked since there are
no fallbacks for these shared objects.

Tested on x86-64-v2, x86-64-v3 and x86-64-v4 machines with
--disable-hardcoded-path-in-tests and --enable-hardcoded-path-in-tests.
2021-01-13 05:51:17 -08:00
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benchtests install: Replace scripts/output-format.sed with objdump -f [BZ #26559] 2021-01-11 12:03:36 -08:00
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ChangeLog.old Prepare for glibc 2.32 release. 2020-08-04 22:17:00 -04:00
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iconv Update copyright dates not handled by scripts/update-copyrights. 2021-01-02 12:17:34 -08:00
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include malloc: Add scratch_buffer_dupfree 2021-01-05 11:33:16 -03:00
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localedata POSIX locale: Fix typo in comment 2021-01-09 12:14:44 +01:00
login Update copyright dates not handled by scripts/update-copyrights. 2021-01-02 12:17:34 -08:00
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malloc malloc: Add scratch_buffer_dupfree 2021-01-05 11:33:16 -03:00
manual Sync FDL from https://www.gnu.org/licenses/fdl-1.3.texi 2021-01-02 12:46:25 -08:00
math Drop nan-pseudo-number.h usage from tests 2021-01-04 20:49:56 +05:30
mathvec Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
misc mntent: Use __putc_unlocked instead of fputc_unlocked 2021-01-08 21:02:12 +05:30
nis Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
nptl nptl: Fix comment typo in pthread_cond_wait.c 2021-01-04 22:09:35 +01:00
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posix posix: Correct attribute access mode on readlinkat [BZ #27024]. 2021-01-10 13:45:39 -07:00
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scripts install: Replace scripts/output-format.sed with objdump -f [BZ #26559] 2021-01-11 12:03:36 -08:00
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stdlib posix: Fix return value of system if shell can not be executed [BZ #27053] 2021-01-11 12:26:58 -03:00
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support posix: Fix return value of system if shell can not be executed [BZ #27053] 2021-01-11 12:26:58 -03:00
sysdeps ldconfig/x86: Store ISA level in cache and aux cache 2021-01-13 05:51:17 -08:00
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.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Remove the bulk of the NaCl port. 2017-05-20 08:09:10 -04:00
aclocal.m4 LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 2018-01-25 17:20:28 +01:00
config.h.in x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker [BZ #26717] 2021-01-07 13:10:13 -08:00
config.make.in install: Replace scripts/output-format.sed with objdump -f [BZ #26559] 2021-01-11 12:03:36 -08:00
configure install: Replace scripts/output-format.sed with objdump -f [BZ #26559] 2021-01-11 12:03:36 -08:00
configure.ac install: Replace scripts/output-format.sed with objdump -f [BZ #26559] 2021-01-11 12:03:36 -08:00
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
extra-lib.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
gen-locales.mk Improve gen-locales.mk and gen-locale.sh to make test files with @ options work 2018-02-27 17:01:57 +01:00
INSTALL config: Allow memory tagging to be enabled when configuring glibc 2020-12-21 15:25:25 +00:00
libc-abis riscv: support GNU indirect function 2021-01-10 21:25:13 -05:00
libof-iterator.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
LICENSES Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
MAINTAINERS Add MAINTAINERS 2017-05-11 13:38:30 -04:00
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Makefile.help Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Makerules: Do not require startup files for format.lds probe object 2021-01-12 12:22:47 +01:00
NEWS Update NEWS for CVE-2019-25013. 2021-01-08 09:20:29 +05:30
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
README Documentation for the RISC-V 32-bit port 2020-08-27 08:17:44 -07:00
Rules Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
shlib-versions Remove --enable-obsolete-nsl configure flag 2020-07-08 17:25:57 +02:00
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version.h Open master branch for glibc 2.33 development. 2020-08-04 23:41:43 -04:00

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.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 3.2 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
	arc*-*-linux-gnu
	arm-*-linux-gnueabi
	csky-*-linux-gnuabiv2
	hppa-*-linux-gnu
	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
	riscv32-*-linux-gnu
	riscv64-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu

If you are interested in doing a port, please contact the glibc
maintainers; see https://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 https://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 https://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.