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Consolidate non cancellable nanosleep call

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This patch consolidates all the non cancellable nanosleep calls to use
the __nanosleep_nocancel identifier.  For non cancellable targets it will
be just a macro to call the default respective symbol while on Linux
will be a internal one.

Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu.

	* nptl/pthread_mutex_timedlock.c (__pthread_mutex_timedlock): Replace
	nanosleep_not_cancel with __nanosleep_nocancel.
	* sysdeps/generic/not-cancel.h (nanosleep_not_cancel): Remove macro.
	(__nanosleep_nocancel): New macro.
	* sysdeps/unix/sysv/linux/nanosleep.c (__nanosleep_nocancel): New
	function.
	* sysdeps/unix/sysv/linux/not-cancel.h (nanosleep_not_cancel): Remove
	macro.
	(__nanosleep_nocancel): New prototype.
This commit is contained in:
Adhemerval Zanella 2017-07-03 15:54:02 -03:00
parent 08d6eb46ca
commit 6f33fd046b
5 changed files with 24 additions and 4 deletions
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10
ChangeLog
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@ -1,5 +1,15 @@
2017-08-22 Adhemerval Zanella <adhemerval.zanella@linaro.org> 2017-08-22 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl/pthread_mutex_timedlock.c (__pthread_mutex_timedlock): Replace
nanosleep_not_cancel with __nanosleep_nocancel.
* sysdeps/generic/not-cancel.h (nanosleep_not_cancel): Remove macro.
(__nanosleep_nocancel): New macro.
* sysdeps/unix/sysv/linux/nanosleep.c (__nanosleep_nocancel): New
function.
* sysdeps/unix/sysv/linux/not-cancel.h (nanosleep_not_cancel): Remove
macro.
(__nanosleep_nocancel): New prototype.
* nptl/pthread_mutex_lock.c (__pthread_mutex_lock_full): Replace * nptl/pthread_mutex_lock.c (__pthread_mutex_lock_full): Replace
pause_not_cancel with __pause_nocancel. pause_not_cancel with __pause_nocancel.
* sysdeps/generic/not-cancel.h (pause_not_cancel): Remove macro. * sysdeps/generic/not-cancel.h (pause_not_cancel): Remove macro.

2
nptl/pthread_mutex_timedlock.c
View File

@ -432,7 +432,7 @@ __pthread_mutex_timedlock (pthread_mutex_t *mutex,
--reltime.tv_sec; --reltime.tv_sec;
} }
if (reltime.tv_sec >= 0) if (reltime.tv_sec >= 0)
while (nanosleep_not_cancel (&reltime, &reltime) != 0) while (__nanosleep_nocancel (&reltime, &reltime) != 0)
continue; continue;
return ETIMEDOUT; return ETIMEDOUT;

2
sysdeps/generic/not-cancel.h
View File

@ -40,7 +40,7 @@
__waitpid (pid, stat_loc, options) __waitpid (pid, stat_loc, options)
#define __pause_nocancel() \ #define __pause_nocancel() \
__pause () __pause ()
#define nanosleep_not_cancel(requested_time, remaining) \ #define __nanosleep_nocancel(requested_time, remaining) \
__nanosleep (requested_time, remaining) __nanosleep (requested_time, remaining)
#define sigsuspend_not_cancel(set) \ #define sigsuspend_not_cancel(set) \
__sigsuspend (set) __sigsuspend (set)

9
sysdeps/unix/sysv/linux/nanosleep.c
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@ -18,6 +18,7 @@
#include <time.h> #include <time.h>
#include <sysdep-cancel.h> #include <sysdep-cancel.h>
#include <not-cancel.h>
/* Pause execution for a number of nanoseconds. */ /* Pause execution for a number of nanoseconds. */
int int
@ -28,3 +29,11 @@ __nanosleep (const struct timespec *requested_time,
} }
hidden_def (__nanosleep) hidden_def (__nanosleep)
weak_alias (__nanosleep, nanosleep) weak_alias (__nanosleep, nanosleep)
int
__nanosleep_nocancel (const struct timespec *requested_time,
struct timespec *remaining)
{
return INLINE_SYSCALL_CALL (nanosleep, requested_time, remaining);
}
hidden_def (__nanosleep_nocancel)

5
sysdeps/unix/sysv/linux/not-cancel.h
View File

@ -26,6 +26,7 @@
#include <unistd.h> #include <unistd.h>
#include <sys/syscall.h> #include <sys/syscall.h>
#include <sys/wait.h> #include <sys/wait.h>
#include <time.h>
/* Non cancellable open syscall. */ /* Non cancellable open syscall. */
__typeof (open) __open_nocancel; __typeof (open) __open_nocancel;
@ -81,8 +82,8 @@ __typeof (pause) __pause_nocancel;
libc_hidden_proto (__pause_nocancel) libc_hidden_proto (__pause_nocancel)
/* Uncancelable nanosleep. */ /* Uncancelable nanosleep. */
#define nanosleep_not_cancel(requested_time, remaining) \ __typeof (__nanosleep) __nanosleep_nocancel;
INLINE_SYSCALL (nanosleep, 2, requested_time, remaining) hidden_proto (__nanosleep_nocancel)
/* Uncancelable sigsuspend. */ /* Uncancelable sigsuspend. */
#define sigsuspend_not_cancel(set) \ #define sigsuspend_not_cancel(set) \