fb6256c0ef
Release e-mail:
https://inbox.sourceware.org/libc-alpha/5906001.DvuYhMxLoT@pinacolada/
Major new features:
* The following ISO C23 function families (introduced in TS
18661-4:2015) are now supported in <math.h>. Each family includes
functions for float, double, long double, _FloatN and _FloatNx, and a
type-generic macro in <tgmath.h>.
- Power and absolute-value functions: compoundn, pown, powr, rootn,
rsqrt.
* On Linux, the pthread_gettid_np function has been added.
* The ISO C2Y family of unsigned abs functions, i.e. uabs, ulabs,
ullabs, and uimaxabs, is now supported.
* On Linux, the <termios.h> interface now supports arbitrary baud rates;
speed_t is redefined to simply be the baud rate specified as an
unsigned int, which matches the kernel interface.
* The thread-local cache in malloc (tcache) now supports caching of
large blocks. This feature can be enabled by setting the tunable
glibc.malloc.tcache_max to a larger value (max 4194304). Tcache is
also significantly faster for small sizes.
* A new configure option, "--enable-sframe", can be used to enable
SFrame support of the GNU C Libraries. SFrame is a new stack trace
information format which can be used by backtrace. It requires
binutils with a minimum version of 2.45.
* Support for lightweight stack guard pages via madvise and the
MADV_GUARD_INSTALL flag has been added to pthread_create.
* Additional optimized and correctly rounded mathematical functions have
been imported from the CORE-MATH project, in particular acospif,
asinpif, atanpif, atan2pif, cospif, sinpif, tanpif.
* The testsuite has been significantly extended, including coverage of
the functionality of the printf and scanf function families in many
variants.
* The manual has been significantly extended and updated, particularly
the threads, terminal, filesystem, resource, and math chapters.
* Code has been added to detect the x86-64 Intel Arrow Lake, Panther
Lake, Clearwater Forest, and Diamond Rapids microarchitectures.
* Regarding S390, support for the new z17 platform has been added.
Deprecated and removed features, and other changes affecting compatibility:
* The glibc.rtld.execstack tunable now supports a compatibility mode to
allow programs that require an executable stack through dynamically
loaded shared libraries.
* On Linux, the <termio.h> header and the definition of struct termio
in <sys/ioctl.h> have been removed. The termio interface has been
obsolete since the very first version of POSIX.1 in 1988, replaced
with <termios.h>.
* The support for TX lock elision of pthread mutexes has been deprecated
on all architectures and will be removed in the next release.
* On AArch64 Linux targets supporting the Scalable Matrix Extension
(SME), setjmp and sigsetjmp will disable the ZA state of SME.
Changes to build and runtime requirements:
* GCC 12.1 or later is now required to build the GNU C Library.
* GNU Binutils 2.39 or later is now required to build the GNU C Library.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[Julien: resolve conflict with commit feaf53585a]
Signed-off-by: Julien Olivain <ju.o@free.fr>
38 lines
1.1 KiB
Diff
38 lines
1.1 KiB
Diff
From c01b78e37885c7c4a191f752dc346c848d73b731 Mon Sep 17 00:00:00 2001
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From: Romain Naour <romain.naour@gmail.com>
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Date: Sat, 9 Sep 2023 23:58:50 +0200
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Subject: [PATCH] HACK: keep _ISOC23_SOURCE undefined to build localedef
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with old glibc
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Fixes:
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host-localedef-2.38-13-g92201f16cbcfd9eafe314ef6654be2ea7ba25675/build/locale/ld-ctype.o: in function `ctype_read':
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ld-ctype.c:(.text+0x6cef): undefined reference to `__isoc23_strtoul'
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Upstream: Not applicable
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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[Thomas: adapted to glibc 2.40, which required the logic to be changed
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to _ISOC23_SOURCE]
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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---
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include/features.h | 2 --
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1 file changed, 2 deletions(-)
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diff --git a/include/features.h b/include/features.h
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index 8515b06b36..9abd65af93 100644
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--- a/include/features.h
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+++ b/include/features.h
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@@ -217,9 +217,7 @@
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# undef _ISOC11_SOURCE
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# define _ISOC11_SOURCE 1
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# undef _ISOC23_SOURCE
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-# define _ISOC23_SOURCE 1
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# undef _ISOC2Y_SOURCE
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-# define _ISOC2Y_SOURCE 1
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# undef _POSIX_SOURCE
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# define _POSIX_SOURCE 1
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# undef _POSIX_C_SOURCE
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--
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2.50.1
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