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Consolidate non cancellable openat call

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This patch consolidates all the non cancellable openat{64} calls to use
the __openat{64}_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.

	* sysdeps/generic/not-cancel.h (openat_not_cancel): Remove macro.
	(openat_not_cancel_3): Likewise.
	(openat64_not_cancel_3): Likewise).
	(openat_not_cancel_3): Likewise).
	* sysdeps/unix/sysv/linux/not-cancel.h (openat_not_cancel): Remove
	macro.
	(openat_not_cancel_3): Likewise.
	(openat64_not_cancel): Likewise.
	(openat64_not_cancel_3): Likewise.
	* sysdeps/unix/sysv/linux/openat.c (__openat_nocancel): New function.
	* sysdeps/unix/sysv/linux/openat64.c (__openat64_nocancel): Likewise.
	* io/ftw.c (open_dir_stream): Replace openat{64}_not_cancel{_3} with
	__open{64}_nocancel.
	* sysdeps/mach/hurd/opendir.c (__opendirat): Likewise.
	* sysdeps/posix/getcwd.c (__getcwd): Likewise.
	* sysdeps/posix/opendir.c (__opendirat): Likewise.
This commit is contained in:
Adhemerval Zanella
2017-07-03 15:00:26 -03:00
parent 65a086db91
commit 0bb2fabcb3
9 changed files with 87 additions and 30 deletions
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18
sysdeps/unix/sysv/linux/not-cancel.h
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@ -34,6 +34,14 @@ libc_hidden_proto (__open_nocancel)
__typeof (open64) __open64_nocancel;
libc_hidden_proto (__open64_nocancel)
/* Non cancellable openat syscall. */
__typeof (openat) __openat_nocancel;
libc_hidden_proto (__openat_nocancel)
/* Non cacellable openat syscall (LFS version). */
__typeof (openat64) __openat64_nocancel;
libc_hidden_proto (__openat64_nocancel)
/* Non cancellable read syscall. */
__typeof (__read) __read_nocancel;
libc_hidden_proto (__read_nocancel)
@ -42,16 +50,6 @@ libc_hidden_proto (__read_nocancel)
__typeof (__write) __write_nocancel;
libc_hidden_proto (__write_nocancel)
/* Uncancelable openat. */
#define openat_not_cancel(fd, fname, oflag, mode) \
INLINE_SYSCALL (openat, 4, fd, fname, oflag, mode)
#define openat_not_cancel_3(fd, fname, oflag) \
INLINE_SYSCALL (openat, 3, fd, fname, oflag)
#define openat64_not_cancel(fd, fname, oflag, mode) \
INLINE_SYSCALL (openat, 4, fd, fname, oflag | O_LARGEFILE, mode)
#define openat64_not_cancel_3(fd, fname, oflag) \
INLINE_SYSCALL (openat, 3, fd, fname, oflag | O_LARGEFILE)
/* Uncancelable close. */
#define __close_nocancel(fd) \
INLINE_SYSCALL (close, 1, fd)