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From: Florian Weimer via Libc-alpha <libc-alpha@sourceware.org>
To: libc-alpha@sourceware.org
Subject: [PATCH] NEWS: Mention libpthread, libdl, libutil, libanl integration
Date: Wed, 21 Jul 2021 14:08:49 +0200	[thread overview]
Message-ID: <871r7roomm.fsf@oldenburg.str.redhat.com> (raw)

---
 NEWS | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/NEWS b/NEWS
index efc105b6b4..dd333109a5 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,20 @@ Version 2.34
 
 Major new features:
 
+* All functionality formerly implemented in the libraries libpthread,
+  libdl, libutil, libanl has been integrated into libc.  New
+  applications do not link with -lpthread, -ldl, -lutil, -lanl anymore.
+  For backwards compatibility, empty static archives libpthread.a,
+  libdl.a, libutil.a, libanl.a are provided, so that the linker options
+  keep working.  Applications which have been linked against glibc 2.33
+  or earlier continue to load the corresponding shared objects (which
+  are now empty).  The integration of those libraries into libc means
+  that additional symbols become available by default.  This can cause
+  applications that contain weak references to take unexpected code
+  paths that would only have been used in previous glibc versions when
+  e.g. preloading libpthread.so.0, potentially exposing application
+  bugs.
+
 * When _DYNAMIC_STACK_SIZE_SOURCE or _GNU_SOURCE are defined,
   PTHREAD_STACK_MIN is no longer constant and is redefined to
   sysconf(_SC_THREAD_STACK_MIN).


             reply	other threads:[~2021-07-21 12:09 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 12:08 Florian Weimer via Libc-alpha [this message]
2021-07-29  2:19 ` Carlos O'Donell via Libc-alpha
2021-07-29  7:56 ` Alexander Monakov via Libc-alpha
2021-10-08 22:09 ` Stafford Horne via Libc-alpha
2021-10-09 12:18   ` Florian Weimer
2021-10-10  0:45     ` Stafford Horne via Libc-alpha
2021-10-10 13:34       ` Florian Weimer

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