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Consolidate non cancellable writev call

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This patch consolidates all the non cancellable writev calls to use
the __writev_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.

	* gmon/gmon.c (write_hist): Replace writev_not_cancel_no_status with
	__writev_nocancel_nostatus.
	(write_call_graph): Likewise.
	(write_bb_counts): Likewise.
	* resolv/herror.c (herror): Likewise.
	* sysdeps/generic/not-cancel.h (writev_not_cancel_no_status): Remove
	macro.
	(__writev_nocancel_nostatus): New macro.
	* sysdeps/unix/sysv/linux/not-cancel.h (writev_not_cancel_no_status):
	Remove macro.
	(__writev_nocancel_nostatus): New function.
This commit is contained in:
Adhemerval Zanella
2017-07-03 15:33:23 -03:00
parent df1deda600
commit 19926de954
5 changed files with 30 additions and 12 deletions
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12
sysdeps/unix/sysv/linux/not-cancel.h
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@@ -62,10 +62,14 @@ __close_nocancel_nostatus (int fd)
__close_nocancel (fd);
}
/* Uncancelable writev. */
#define writev_not_cancel_no_status(fd, iov, n) \
(void) ({ INTERNAL_SYSCALL_DECL (err); \
INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); })
/* Non cancellable writev syscall that does not also set errno in case of
failure. */
static inline void
__writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt)
{
INTERNAL_SYSCALL_DECL (err);
INTERNAL_SYSCALL_CALL (writev, err, fd, iov, iovcnt);
}
/* Uncancelable fcntl. */
#define fcntl_not_cancel(fd, cmd, val) \