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Consolidate non cancellable fcntl call

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This patch consolidates all the non cancellable fcntl calls to use
the __fcntl_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.

Since its prototype is already defined at internal fcntl.h header, it
is removed from not-cancel.h one.

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

	* login/utmp_file.c (timeout_handler): Replace fcntl_not_cancel with
	__fcntl_nocancel.
	* sysdeps/generic/not-cancel.h (fcntl_not_cancel): Remove macro.
	* sysdeps/unix/sysv/linux/not-cancel.h (fcntl_not_cancel): Likewise.
This commit is contained in:
Adhemerval Zanella 2017-07-03 15:37:16 -03:00
parent 19926de954
commit 7369800c04
4 changed files with 7 additions and 8 deletions
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5
ChangeLog
View File

@ -1,5 +1,10 @@
2017-08-21 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* login/utmp_file.c (timeout_handler): Replace fcntl_not_cancel with
__fcntl_nocancel.
* sysdeps/generic/not-cancel.h (fcntl_not_cancel): Remove macro.
* sysdeps/unix/sysv/linux/not-cancel.h (fcntl_not_cancel): Likewise.
* gmon/gmon.c (write_hist): Replace writev_not_cancel_no_status with
__writev_nocancel_nostatus.
(write_call_graph): Likewise.

4
login/utmp_file.c
View File

@ -81,7 +81,7 @@ static void timeout_handler (int signum) {};
memset (&fl, '\0', sizeof (struct flock)); \
fl.l_type = (type); \
fl.l_whence = SEEK_SET; \
if (fcntl_not_cancel ((fd), F_SETLKW, &fl) < 0)
if (__fcntl_nocancel ((fd), F_SETLKW, &fl) < 0)
#define LOCKING_FAILED() \
goto unalarm_return
@ -89,7 +89,7 @@ static void timeout_handler (int signum) {};
#define UNLOCK_FILE(fd) \
/* Unlock the file. */ \
fl.l_type = F_UNLCK; \
fcntl_not_cancel ((fd), F_SETLKW, &fl); \
__fcntl_nocancel ((fd), F_SETLKW, &fl); \
\
unalarm_return: \
/* Reset the signal handler and alarm. We must reset the alarm \

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

@ -36,8 +36,6 @@
__write (fd, buf, n)
#define __writev_nocancel_nostatus(fd, iov, n) \
(void) __writev (fd, iov, n)
#define fcntl_not_cancel(fd, cmd, val) \
__fcntl (fd, cmd, val)
# define waitpid_not_cancel(pid, stat_loc, options) \
__waitpid (pid, stat_loc, options)
#define pause_not_cancel() \

4
sysdeps/unix/sysv/linux/not-cancel.h
View File

@ -71,10 +71,6 @@ __writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt)
INTERNAL_SYSCALL_CALL (writev, err, fd, iov, iovcnt);
}
/* Uncancelable fcntl. */
#define fcntl_not_cancel(fd, cmd, val) \
__fcntl_nocancel (fd, cmd, val)
/* Uncancelable waitpid. */
#define __waitpid_nocancel(pid, stat_loc, options) \
INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)