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posix: Consolidate Linux sigsuspend implementation

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This patch consolidates the sigsuspend Linux syscall generation on
sysdeps/unix/sysv/linux/sigsuspend.c.  It basically removes the alpha
assembly version which call the old sigsusped interface using only
the first doubleword from sigset. Current minimum supported kernel
on alpha (3.2) enforces rt_sigsuspend on the architecture
(__ARCH_WANT_SYS_RT_SIGSUSPEND option on kernel), so it is possible
to use the default implementation.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu,
sparc64-linux-gnu, and sparcv9-linux-gnu.

	* sysdeps/unix/sysv/linux/alpha/sigsuspend.S: Remove file.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Simplify include list.
	* nptl/Makefile (CFLAGS-sigsuspend.c): New rule.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Makefile
	(CFLAGS-sigsuspend.c): Remove rule.
This commit is contained in:
Adhemerval Zanella
2016-11-24 10:12:37 -02:00
parent 2de15b61e9
commit b3b00aa8b0
5 changed files with 7 additions and 40 deletions
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4
sysdeps/unix/sysv/linux/sigsuspend.c
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@ -15,12 +15,8 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <signal.h>
#include <unistd.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */