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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2019-02-28 11:33:22 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2019-03-05 16:28:20 -0300
commit0ddb7ea842abf63516b74d4b057c052afc6ba863 (patch)
tree92b826163313ba3d4b735db59f1971a9b44f3086 /sysdeps/unix/sysv/linux/kernel-features.h
parent590675c079d743ecf6fee9f561e46c94633a91ef (diff)
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nptl: Assume __ASSUME_FUTEX_CLOCK_REALTIME support
This patch assumes realtime clock support for nptl and thus removes
all the associated code.

For __pthread_mutex_timedlock the fallback usage for the case where
lll_futex_timed_wait_bitset it not set define is also removed. The
generic lowlevellock-futex.h always define it, so for NPTL code the
check always yield true.

Checked on x86_64-linux-gnu and i686-linux-gnu.

	* nptl/nptl-init.c (__have_futex_clock_realtime,
	__have_futex_clock_realtime): Remove definition.
	(__pthread_initialize_minimal_internal): Remove FUTEX_CLOCK_REALTIME
	check test for !__ASSUME_FUTEX_CLOCK_REALTIME.
	* nptl/pthread_mutex_timedlock.c (__pthread_mutex_timedlock): Assume
	__ASSUME_FUTEX_CLOCK_REALTIME support.
	* sysdeps/unix/sysv/linux/i386/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_FUTEX_CLOCK_REALTIME): Remove.
	* sysdeps/nptl/lowlevellock-futex.h (lll_futex_timed_wait_bitset):
	Adjust comment.
Diffstat (limited to 'sysdeps/unix/sysv/linux/kernel-features.h')
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 0db1b987a4..bc5c959f58 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -57,9 +57,6 @@
    2.6.27.  */
 #define __ASSUME_IN_NONBLOCK	1
 
-/* Support for the FUTEX_CLOCK_REALTIME flag was added in 2.6.29.  */
-#define __ASSUME_FUTEX_CLOCK_REALTIME	1
-
 /* Support for preadv and pwritev was added in 2.6.30.  */
 #define __ASSUME_PREADV	1
 #define __ASSUME_PWRITEV	1