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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
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