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linux: Consolidate Linux open_by_handle_at syscall

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This patch consolidates the open_by_handle_at Linux syscall generation on
sysdeps/unix/sysv/linux/open_by_handle_at.c.  It basically removes it from
architectures auto-generation list.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu,
sparc64-linux-gnu, and sparcv9-linux-gnu.

	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add
	open_by_handle_at.
	(CFLAGS-open_by_handle_at.c): New flag.
	* sysdeps/unix/sysv/linux/open_by_handle_at.c: New file.
	* sysdeps/unix/sysv/linux/syscalls.list (open_by_handle_at): New
	file.
	* misc/Makefile (CFLAGS-open_by_handle_at.c): New rule.
This commit is contained in:
Adhemerval Zanella 2015-11-02 11:42:09 -02:00
parent afbbc18f9e
commit a5a34d2eaf
5 changed files with 48 additions and 2 deletions
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8
ChangeLog
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@ -1,5 +1,13 @@
2017-05-18 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add
open_by_handle_at.
(CFLAGS-open_by_handle_at.c): New flag.
* sysdeps/unix/sysv/linux/open_by_handle_at.c: New file.
* sysdeps/unix/sysv/linux/syscalls.list (open_by_handle_at): New
file.
* misc/Makefile (CFLAGS-open_by_handle_at.c): New rule.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add splice.
(CFLAGS-splice.c): New flag.
* sysdeps/unix/sysv/linux/splice.c: New file.

1
misc/Makefile
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@ -113,6 +113,7 @@ CFLAGS-fdatasync.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-fsync.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-vmsplice.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-splice.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-open_by_handle_at.c = -fexceptions -fasynchronous-unwind-tables
# Called during static library initialization, so turn stack-protection
# off for non-shared builds.

3
sysdeps/unix/sysv/linux/Makefile
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@ -17,7 +17,8 @@ include $(firstword $(wildcard $(sysdirs:=/sysctl.mk)))
sysdep_routines += clone umount umount2 readahead \
setfsuid setfsgid epoll_pwait signalfd \
eventfd eventfd_read eventfd_write prlimit \
personality epoll_wait tee vmsplice splice
personality epoll_wait tee vmsplice splice \
open_by_handle_at
CFLAGS-gethostid.c = -fexceptions
CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables

37
sysdeps/unix/sysv/linux/open_by_handle_at.c Normal file
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@ -0,0 +1,37 @@
/* Obtain handle for an open file via a handle. Linux implementation.
Copyright (C) 2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sysdep-cancel.h>
int
open_by_handle_at (int mount_fd, struct file_handle *handle, int flags)
{
#ifdef __NR_open_by_handle_at
return SYSCALL_CANCEL (open_by_handle_at, mount_fd, handle, flags);
#else
__set_errno (ENOSYS);
return -1;
#endif
}
#ifndef __NR_open_by_handle_at
stub_warning (open_by_handle_at)
#endif

1
sysdeps/unix/sysv/linux/syscalls.list
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@ -106,7 +106,6 @@ timerfd_gettime EXTRA timerfd_gettime i:ip timerfd_gettime
fanotify_init EXTRA fanotify_init i:ii fanotify_init
name_to_handle_at EXTRA name_to_handle_at i:isppi name_to_handle_at
open_by_handle_at EXTRA open_by_handle_at Ci:ipi open_by_handle_at
setns EXTRA setns i:ii setns