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Tulio Magno Quites Machado Filho c624d23260 Add a generic scalb implementation
This is a preparatory patch to enable building a _Float128
variant to ease reuse when building a _Float128 variant to
alias this long double only symbol.

Notably, stubs are added where missing to the native _Float128
sysdep dir to prevent building these newly templated variants
created inside the build directories.

Also noteworthy are the changes around LIBM_SVID_COMPAT.  These
changes are not intuitive.  The templated version is only
enabled when !LIBM_SVID_COMPAT, and the compat version is
predicated entirely on LIBM_SVID_COMPAT.  Thus, exactly one is
stubbed out entirely when building.  The nldbl scalb compat
files are updated to account for this.

Likewise, fixup the reuse of m68k's e_scalb{f,l}.c to include
it's override of e_scalb.c.  Otherwise, the search path finds
the templated copy in the build directory.  This could be
futher simplified by providing an overridden template, but I
lack the hardware to verify.
2020-02-14 08:24:56 -06:00
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benchtests Improve random memcpy benchmark 2020-02-10 16:08:40 +00:00
bits y2038: Define __suseconds64_t type to be used with struct __timeval64 2020-02-07 17:55:07 +01:00
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htl htl C11 threads: Avoid pthread_ symbols visibility in static library 2020-02-10 23:45:23 +00:00
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locale Fix locale/tst-locale-locpath cross-testing when sshd sets LANG. 2020-01-24 17:23:07 +00:00
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malloc Remove incorrect alloc_size attribute from pvalloc [BZ #25401] 2020-01-17 15:05:34 +01:00
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math Add a generic scalb implementation 2020-02-14 08:24:56 -06:00
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nis nss_nisplus: Use NSS_DECLARE_MODULE_FUNCTIONS 2020-02-13 09:15:01 +01:00
nptl pthread: Move some join tests from nptl to sysdeps/pthread 2020-02-10 01:21:46 +00:00
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nscd nss: Add function types and NSS_DECLARE_MODULE_FUNCTIONS macro to <nss.h> 2020-02-13 09:14:40 +01:00
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posix y2038: Define __suseconds64_t type to be used with struct __timeval64 2020-02-07 17:55:07 +01:00
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resolv resolv: Fix ABA race in /etc/resolv.conf change detection [BZ #25420] 2020-02-14 08:14:07 +01:00
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sunrpc sunrpc: Properly clean up if tst-udp-timeout fails 2020-02-12 16:25:34 -03:00
support support: Add the xlstat function 2020-02-09 11:50:44 +01:00
sysdeps Add a generic scalb implementation 2020-02-14 08:24:56 -06:00
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version.h Open master for 2.32 development 2020-02-01 17:22:50 +05:30

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
	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
	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.