From 2d3b00f49f1dec349a9bad0a8c1992782e9338a8 Mon Sep 17 00:00:00 2001 From: Peter S. Mazinger Date: Sat, 23 Apr 2011 20:46:59 +0200 Subject: [PATCH 343/396] pause.c: add back usage of pause syscall No idea why it was removed when NPTL was added, but glibc uses it as well. Signed-off-by: Peter S. Mazinger --- libc/sysdeps/linux/common/pause.c | 19 ++++++++++++++----- 1 files changed, 14 insertions(+), 5 deletions(-) diff --git a/libc/sysdeps/linux/common/pause.c b/libc/sysdeps/linux/common/pause.c index 8a4d821..32fe839 100644 --- a/libc/sysdeps/linux/common/pause.c +++ b/libc/sysdeps/linux/common/pause.c @@ -7,16 +7,24 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ -#define __need_NULL -#include +#include #include -#include #include +#ifdef __NR_pause +/* even if it is not obvious, glibc uses the pause syscall, see syscalls.list */ +# define __NR___pause_nocancel __NR_pause +static _syscall0(int, __NC(pause)) +CANCELLABLE_SYSCALL(int, pause, (void), ()) +#else +# define __need_NULL +# include +# include + int -#ifdef __LINUXTHREADS_OLD__ +# ifdef __LINUXTHREADS_OLD__ weak_function -#endif +# endif pause(void) { sigset_t set; @@ -30,3 +38,4 @@ pause(void) } lt_strong_alias(pause) LIBC_CANCEL_HANDLED (); /* sigsuspend handles our cancellation. */ +#endif -- 1.7.0.4