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Remove __ASSUME_SIGNALFD4.

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Current Linux kernel version requirements mean the signalfd4 syscall
can always be assumed to be available.  This patch removes
__ASSUME_SIGNALFD4 and associated conditionals.

Tested for x86_64 and x86 that installed stripped shared libraries are
unchanged by the patch.

	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SIGNALFD4):
	Remove macro.
	* sysdeps/unix/sysv/linux/signalfd.c: Do not include
	<kernel-features.h>.
	(signalfd) [__NR_signalfd4]: Make code unconditional.
	(signalfd) [!__ASSUME_SIGNALFD4]: Remove conditional code.
This commit is contained in:
Joseph Myers
2016-03-21 16:30:05 +00:00
parent 67b23376fb
commit 238d60ac9b
3 changed files with 10 additions and 26 deletions
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1
sysdeps/unix/sysv/linux/kernel-features.h
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@ -83,7 +83,6 @@
2.6.27. */
#define __ASSUME_IN_NONBLOCK 1
#define __ASSUME_PIPE2 1
#define __ASSUME_SIGNALFD4 1
#define __ASSUME_DUP3 1
/* Support for accept4 functionality was added in 2.6.28, but for some