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r6556 - in glibc-package/branches/glibc-2.21/debian: . patches patches/arm



Author: adconrad
Date: 2015-09-10 12:38:17 +0000 (Thu, 10 Sep 2015)
New Revision: 6556

Added:
   glibc-package/branches/glibc-2.21/debian/patches/arm/local-arm-futex.diff
Modified:
   glibc-package/branches/glibc-2.21/debian/changelog
   glibc-package/branches/glibc-2.21/debian/patches/series
Log:
debian/patches/arm/local-arm-futex.diff: Lie about the minimum kernel
support for futex_atomic_cmpxchg_inatomic to restore the  previous state
and fix the pulsesink (and others) regression on ARM (closes: #788799)

Modified: glibc-package/branches/glibc-2.21/debian/changelog
===================================================================
--- glibc-package/branches/glibc-2.21/debian/changelog	2015-09-10 12:25:19 UTC (rev 6555)
+++ glibc-package/branches/glibc-2.21/debian/changelog	2015-09-10 12:38:17 UTC (rev 6556)
@@ -53,6 +53,11 @@
   [ Helmut Grohne ]
   * Fix some issues with stage 1.  Closes: #797831.
 
+  [ Adam Conrad ]
+  * debian/patches/arm/local-arm-futex.diff: Lie about the minimum kernel
+    support for futex_atomic_cmpxchg_inatomic to restore the  previous state
+    and fix the pulsesink (and others) regression on ARM (closes: #788799)
+
  -- Aurelien Jarno <aurel32@debian.org>  Sat, 29 Aug 2015 00:43:44 +0200
 
 glibc (2.21-0experimental1) experimental; urgency=medium

Added: glibc-package/branches/glibc-2.21/debian/patches/arm/local-arm-futex.diff
===================================================================
--- glibc-package/branches/glibc-2.21/debian/patches/arm/local-arm-futex.diff	                        (rev 0)
+++ glibc-package/branches/glibc-2.21/debian/patches/arm/local-arm-futex.diff	2015-09-10 12:38:17 UTC (rev 6556)
@@ -0,0 +1,23 @@
+Description: Lie about futex_atomic_cmpxchg_inatomic kernel support.
+ In past versions of glibc, we incorrectly assumed all ARM kernels
+ in all configurations supported futex_atomic_cmpxchg_inatomic. This
+ was clearly a lie, however it was a lie that we relied on, because
+ the fallback implementation appears to not play nicely with certain
+ applications like pulseaudio.  Restore the lie for kernels > 2.6.32
+ and plug our ears and scream "LA LA LA" about how wrong this is.
+Author: Adam Conrad <adconrad@ubuntu.com>
+Bug-Ubuntu: https://launchpad.net/bugs/1436162
+Bug-Debian: https://bugs.debian.org/788799
+Last-Update: 2015-03-25
+
+--- glibc-2.21.orig/sysdeps/unix/sysv/linux/arm/kernel-features.h
++++ glibc-2.21/sysdeps/unix/sysv/linux/arm/kernel-features.h
+@@ -37,7 +37,7 @@
+ /* The ARM kernel before 3.14.3 may or may not support
+    futex_atomic_cmpxchg_inatomic, depending on kernel
+    configuration.  */
+-#if __LINUX_KERNEL_VERSION < 0x030E03
++#if __LINUX_KERNEL_VERSION < 0x020620
+ # undef __ASSUME_FUTEX_LOCK_PI
+ # undef __ASSUME_REQUEUE_PI
+ # undef __ASSUME_SET_ROBUST_LIST

Modified: glibc-package/branches/glibc-2.21/debian/patches/series
===================================================================
--- glibc-package/branches/glibc-2.21/debian/patches/series	2015-09-10 12:25:19 UTC (rev 6555)
+++ glibc-package/branches/glibc-2.21/debian/patches/series	2015-09-10 12:38:17 UTC (rev 6556)
@@ -54,6 +54,7 @@
 arm/unsubmitted-ldso-multilib.diff
 arm/cvs-arm-sfi_breg.diff
 arm/cvs-memcpy-memmove-always-bx.diff
+arm/local-arm-futex.diff
 
 hppa/local-inlining.diff
 hppa/local-stack-grows-up.diff


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