intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

32 files changed, 4560 insertions, 0 deletions

diff --git a/contrib/libs/libaio/.yandex_meta/devtools.copyrights.report b/contrib/libs/libaio/.yandex_meta/devtools.copyrights.report
new file mode 100644
index 0000000000..f0ff38d5c0
--- /dev/null
+++ b/contrib/libs/libaio/.yandex_meta/devtools.copyrights.report
@@ -0,0 +1,96 @@
+# File format ($ symbol means the beginning of a line):
+#
+# $ # this message
+# $ # =======================
+# $     # comments (all commentaries should starts with some number of spaces and # symbol)
+# ${action} {license id} {license text hash}
+# $BELONGS ./ya/make/file/relative/path/1/ya.make ./ya/make/2/ya.make
+# ${all_file_action} filename
+# $ # user commentaries (many lines)
+# $ generated description - files with this license, license text... (some number of lines that starts with some number of spaces, do not modify)
+# ${action} {license spdx} {license text hash}
+# $BELONGS ./ya/make/file/relative/path/3/ya.make
+# ${all_file_action} filename
+# $    #    user commentaries
+# $ generated description
+# $ ...
+#
+# You can modify action, all_file_action and add commentaries
+# Available actions:
+# keep - keep license in contrib and use in credits
+# skip - skip license
+# remove - remove all files with this license
+# rename - save license text/links into licenses texts file, but not store SPDX into LINCENSE macro. You should store correct license id into devtools.license.spdx.txt file
+#
+# {all file action} records will be generated when license text contains filename that exists on filesystem (in contrib directory)
+# We suppose that that files can contain some license info
+# Available all file actions:
+# FILE_IGNORE - ignore file (do nothing)
+# FILE_INCLUDE - include all file data into licenses text file
+# =======================
+
+KEEP     COPYRIGHT_SERVICE_LABEL 35d078d3315bec2a908afcdd4e55f36a
+BELONGS ya.make
+    License text:
+         *  Copyright (C) 2001-2005 Russell King
+    Scancode info:
+        Original SPDX id: COPYRIGHT_SERVICE_LABEL
+        Score           : 100.00
+        Match type      : COPYRIGHT
+    Files with this license:
+        syscall-arm.h [4:4]
+        syscall-arm64.h [4:4]
+
+KEEP     COPYRIGHT_SERVICE_LABEL 4b04c47b9f7e1bd2ebf179349270f4f5
+BELONGS ya.make
+    License text:
+           Copyright 2002 Red Hat, Inc.
+    Scancode info:
+        Original SPDX id: COPYRIGHT_SERVICE_LABEL
+        Score           : 100.00
+        Match type      : COPYRIGHT
+    Files with this license:
+        io_cancel.c [3:3]
+        io_destroy.c [3:3]
+        io_getevents.c [3:3]
+        io_queue_init.c [3:3]
+        io_queue_release.c [3:3]
+        io_queue_run.c [3:3]
+        io_queue_wait.c [3:3]
+        io_setup.c [3:3]
+        io_submit.c [3:3]
+        vsys_def.h [2:2]
+
+KEEP     COPYRIGHT_SERVICE_LABEL 72f083c0521e4e1b7e9043f5ad949ff1
+BELONGS ya.make
+    License text:
+         * Copyright 2000,2001,2002 Red Hat, Inc.
+    Scancode info:
+        Original SPDX id: COPYRIGHT_SERVICE_LABEL
+        Score           : 100.00
+        Match type      : COPYRIGHT
+    Files with this license:
+        libaio.h [3:3]
+
+KEEP     COPYRIGHT_SERVICE_LABEL c0a580767e4df988cbeb3a33fe57d251
+BELONGS ya.make
+    Note: matched license text is too long. Read it in the source files.
+    Scancode info:
+        Original SPDX id: COPYRIGHT_SERVICE_LABEL
+        Score           : 100.00
+        Match type      : COPYRIGHT
+    Files with this license:
+        COPYING [433:438]
+
+KEEP     COPYRIGHT_SERVICE_LABEL cea1b82351539a871d540971f218116e
+BELONGS ya.make
+    License text:
+         Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+             59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+         Everyone is permitted to copy and distribute verbatim copies
+    Scancode info:
+        Original SPDX id: COPYRIGHT_SERVICE_LABEL
+        Score           : 100.00
+        Match type      : COPYRIGHT
+    Files with this license:
+        COPYING [5:7]
diff --git a/contrib/libs/libaio/.yandex_meta/devtools.licenses.report b/contrib/libs/libaio/.yandex_meta/devtools.licenses.report
new file mode 100644
index 0000000000..83dbe11b43
--- /dev/null
+++ b/contrib/libs/libaio/.yandex_meta/devtools.licenses.report
@@ -0,0 +1,100 @@
+# File format ($ symbol means the beginning of a line):
+#
+# $ # this message
+# $ # =======================
+# $     # comments (all commentaries should starts with some number of spaces and # symbol)
+# ${action} {license spdx} {license text hash}
+# $BELONGS ./ya/make/file/relative/path/1/ya.make ./ya/make/2/ya.make
+# ${all_file_action} filename
+# $ # user commentaries (many lines)
+# $ generated description - files with this license, license text... (some number of lines that starts with some number of spaces, do not modify)
+# ${action} {license spdx} {license text hash}
+# $BELONGS ./ya/make/file/relative/path/3/ya.make
+# ${all_file_action} filename
+# $    #    user commentaries
+# $ generated description
+# $ ...
+#
+# You can modify action, all_file_action and add commentaries
+# Available actions:
+# keep - keep license in contrib and use in credits
+# skip - skip license
+# remove - remove all files with this license
+# rename - save license text/links into licenses texts file, but not store SPDX into LINCENSE macro. You should store correct license id into devtools.license.spdx.txt file
+#
+# {all file action} records will be generated when license text contains filename that exists on filesystem (in contrib directory)
+# We suppose that that files can contain some license info
+# Available all file actions:
+# FILE_IGNORE - ignore file (do nothing)
+# FILE_INCLUDE - include all file data into licenses text file
+# =======================
+
+KEEP     LGPL-2.1-only        06c4217e8353c11713418f4140ca72ad
+BELONGS dynamic/ya.make static/ya.make
+FILE_INCLUDE COPYING found in files: COPYING at line 119
+    Note: matched license text is too long. Read it in the source files.
+    Scancode info:
+        Original SPDX id: LGPL-2.1-only
+        Score           : 99.98
+        Match type      : TEXT
+        Links           : http://www.gnu.org/licenses/lgpl-2.1.html, http://www.gnu.org/licenses/lgpl-2.1.txt, https://spdx.org/licenses/LGPL-2.1-only
+    Files with this license:
+        COPYING [2:513]
+    Belongs difference:
+        + dynamic/ya.make static/ya.make
+        - ya.make
+
+KEEP     LGPL-2.0-or-later    343bafa2636ca498af257b49310b97ff
+BELONGS dynamic/ya.make static/ya.make
+    Note: matched license text is too long. Read it in the source files.
+    Scancode info:
+        Original SPDX id: LGPL-2.0-or-later
+        Score           : 100.00
+        Match type      : NOTICE
+        Links           : http://www.gnu.org/licenses/old-licenses/lgpl-2.0-standalone.html, http://www.gnu.org/licenses/old-licenses/lgpl-2.0.html, https://spdx.org/licenses/LGPL-2.0-or-later
+    Files with this license:
+        io_cancel.c [5:17]
+        io_destroy.c [5:17]
+        io_getevents.c [5:17]
+        io_queue_init.c [5:17]
+        io_queue_release.c [5:17]
+        io_queue_run.c [5:17]
+        io_queue_wait.c [5:17]
+        io_setup.c [5:17]
+        io_submit.c [5:17]
+        vsys_def.h [4:16]
+    Belongs difference:
+        + dynamic/ya.make static/ya.make
+        - ya.make
+
+KEEP     GPL-2.0-only         98ff2f7e77a4aad137064c2661d1bd44
+BELONGS dynamic/ya.make static/ya.make
+    License text:
+         * This program is free software; you can redistribute it and/or modify
+         * it under the terms of the GNU General Public License version 2 as
+         * published by the Free Software Foundation.
+    Scancode info:
+        Original SPDX id: GPL-2.0-only
+        Score           : 100.00
+        Match type      : NOTICE
+        Links           : http://www.gnu.org/licenses/gpl-2.0.html, http://www.gnu.org/licenses/gpl-2.0.txt, https://spdx.org/licenses/GPL-2.0-only
+    Files with this license:
+        syscall-arm.h [6:8]
+        syscall-arm64.h [6:8]
+    Belongs difference:
+        + dynamic/ya.make static/ya.make
+        - ya.make
+
+KEEP     LGPL-2.0-or-later    efd0b88f1751e46cb88598dd37b75a41
+BELONGS dynamic/ya.make static/ya.make
+    Note: matched license text is too long. Read it in the source files.
+    Scancode info:
+        Original SPDX id: LGPL-2.0-or-later
+        Score           : 100.00
+        Match type      : NOTICE
+        Links           : http://www.gnu.org/licenses/old-licenses/lgpl-2.0-standalone.html, http://www.gnu.org/licenses/old-licenses/lgpl-2.0.html, https://spdx.org/licenses/LGPL-2.0-or-later
+    Files with this license:
+        libaio.h [9:21]
+    Belongs difference:
+        + dynamic/ya.make static/ya.make
+        - ya.make
diff --git a/contrib/libs/libaio/COPYING b/contrib/libs/libaio/COPYING
new file mode 100644
index 0000000000..c4792dd27a
--- /dev/null
+++ b/contrib/libs/libaio/COPYING
@@ -0,0 +1,515 @@
+
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
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+  The licenses for most software are designed to take away your
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diff --git a/contrib/libs/libaio/dynamic/.yandex_meta/licenses.list.txt b/contrib/libs/libaio/dynamic/.yandex_meta/licenses.list.txt
new file mode 100644
index 0000000000..b3f64c1dbc
--- /dev/null
+++ b/contrib/libs/libaio/dynamic/.yandex_meta/licenses.list.txt
@@ -0,0 +1,1069 @@
+====================File: COPYING====================
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+notice is found.
+
+
+    <one line to give the library's name and a brief idea of what it
+does.>
+    Copyright (C) <year>  <name of author>
+
+    This 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 of the License, or (at your option) any later version.
+
+    This 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 this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+You should also get your employer (if you work as a programmer) or
+your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James
+Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/contrib/libs/libaio/dynamic/libaio.exports b/contrib/libs/libaio/dynamic/libaio.exports
new file mode 100644
index 0000000000..c38b5ae9c7
--- /dev/null
+++ b/contrib/libs/libaio/dynamic/libaio.exports
@@ -0,0 +1,9 @@
+C io_queue_init
+C io_queue_release
+C io_queue_run
+C io_setup
+C io_destroy
+C io_submit
+C io_cancel
+C io_getevents
+
diff --git a/contrib/libs/libaio/dynamic/ya.make b/contrib/libs/libaio/dynamic/ya.make
new file mode 100644
index 0000000000..fd2096f7aa
--- /dev/null
+++ b/contrib/libs/libaio/dynamic/ya.make
@@ -0,0 +1,31 @@
+DYNAMIC_LIBRARY(aio)
+
+OWNER(
+    g:contrib
+    g:cpp-contrib
+)
+
+IF (ARCH_ARMV7 OR ARCH_ARM64)
+    LICENSE(
+        GPL-2.0-only AND
+        LGPL-2.0-or-later AND
+        LGPL-2.1-only
+    )
+ELSE()
+    LICENSE(
+        LGPL-2.0-or-later AND
+        LGPL-2.1-only
+    )
+ENDIF()
+
+LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
+
+EXPORTS_SCRIPT(libaio.exports)
+
+NO_RUNTIME()
+
+PROVIDES(libaio)
+
+DYNAMIC_LIBRARY_FROM(contrib/libs/libaio/static)
+
+END()
diff --git a/contrib/libs/libaio/io_cancel.c b/contrib/libs/libaio/io_cancel.c
new file mode 100644
index 0000000000..298751a6ec
--- /dev/null
+++ b/contrib/libs/libaio/io_cancel.c
@@ -0,0 +1,22 @@
+/* io_cancel.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include "libaio.h"
+#include "syscall.h"
+
+io_syscall3(int, io_cancel, io_cancel, io_context_t, ctx, struct iocb *, iocb, struct io_event *, event)
diff --git a/contrib/libs/libaio/io_destroy.c b/contrib/libs/libaio/io_destroy.c
new file mode 100644
index 0000000000..ba28dd2ec9
--- /dev/null
+++ b/contrib/libs/libaio/io_destroy.c
@@ -0,0 +1,23 @@
+/* io_destroy
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <errno.h>
+#include "libaio.h"
+#include "syscall.h"
+
+io_syscall1(int, io_destroy, io_destroy, io_context_t, ctx)
diff --git a/contrib/libs/libaio/io_getevents.c b/contrib/libs/libaio/io_getevents.c
new file mode 100644
index 0000000000..b606e43283
--- /dev/null
+++ b/contrib/libs/libaio/io_getevents.c
@@ -0,0 +1,56 @@
+/* io_getevents.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include "libaio.h"
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include "syscall.h"
+
+io_syscall5(int, __io_getevents_0_4, io_getevents, io_context_t, ctx, long, min_nr, long, nr, struct io_event *, events, struct timespec *, timeout)
+
+#define AIO_RING_MAGIC                  0xa10a10a1
+
+/* Ben will hate me for this */
+struct aio_ring {
+	unsigned        id;     /* kernel internal index number */
+	unsigned        nr;     /* number of io_events */
+	unsigned        head;
+	unsigned        tail;
+
+	unsigned        magic;
+	unsigned        compat_features;
+	unsigned        incompat_features;
+	unsigned        header_length;  /* size of aio_ring */
+};
+
+
+int io_getevents(io_context_t ctx, long min_nr, long nr, struct io_event * events, struct timespec * timeout)
+{
+	struct aio_ring *ring;
+	ring = (struct aio_ring*)ctx;
+	if (ring==NULL || ring->magic != AIO_RING_MAGIC)
+		goto do_syscall;
+	if (timeout!=NULL && timeout->tv_sec == 0 && timeout->tv_nsec == 0) {
+		if (ring->head == ring->tail)
+			return 0;
+	}
+
+do_syscall:
+	return __io_getevents_0_4(ctx, min_nr, nr, events, timeout);
+}
diff --git a/contrib/libs/libaio/io_queue_init.c b/contrib/libs/libaio/io_queue_init.c
new file mode 100644
index 0000000000..62e8dc0335
--- /dev/null
+++ b/contrib/libs/libaio/io_queue_init.c
@@ -0,0 +1,33 @@
+/* io_queue_init.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include "libaio.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#include "syscall.h"
+
+int io_queue_init(int maxevents, io_context_t *ctxp)
+{
+	if (maxevents > 0) {
+		*ctxp = NULL;
+		return io_setup(maxevents, ctxp);
+	}
+	return -EINVAL;
+}
diff --git a/contrib/libs/libaio/io_queue_release.c b/contrib/libs/libaio/io_queue_release.c
new file mode 100644
index 0000000000..522d7651e4
--- /dev/null
+++ b/contrib/libs/libaio/io_queue_release.c
@@ -0,0 +1,27 @@
+/* io_queue_release.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include "libaio.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+int io_queue_release(io_context_t ctx)
+{
+	return io_destroy(ctx);
+}
diff --git a/contrib/libs/libaio/io_queue_run.c b/contrib/libs/libaio/io_queue_run.c
new file mode 100644
index 0000000000..3780ca093a
--- /dev/null
+++ b/contrib/libs/libaio/io_queue_run.c
@@ -0,0 +1,39 @@
+/* io_submit
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include "libaio.h"
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+
+int io_queue_run(io_context_t ctx)
+{
+	static struct timespec timeout = { 0, 0 };
+	struct io_event event;
+	int ret;
+
+	/* FIXME: batch requests? */
+	while (1 == (ret = io_getevents(ctx, 0, 1, &event, &timeout))) {
+		io_callback_t cb = (io_callback_t)event.data;
+		struct iocb *iocb = event.obj;
+
+		cb(ctx, iocb, event.res, event.res2);
+	}
+
+	return ret;
+}
diff --git a/contrib/libs/libaio/io_queue_wait.c b/contrib/libs/libaio/io_queue_wait.c
new file mode 100644
index 0000000000..e706901953
--- /dev/null
+++ b/contrib/libs/libaio/io_queue_wait.c
@@ -0,0 +1,30 @@
+/* io_submit
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#define NO_SYSCALL_ERRNO
+#include <sys/types.h>
+#include "libaio.h"
+#include <errno.h>
+#include "syscall.h"
+
+struct timespec;
+
+int io_queue_wait(io_context_t ctx, struct timespec *timeout)
+{
+	return io_getevents(ctx, 0, 0, NULL, timeout);
+}
diff --git a/contrib/libs/libaio/io_setup.c b/contrib/libs/libaio/io_setup.c
new file mode 100644
index 0000000000..a3a44bb4d5
--- /dev/null
+++ b/contrib/libs/libaio/io_setup.c
@@ -0,0 +1,23 @@
+/* io_setup
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <errno.h>
+#include "libaio.h"
+#include "syscall.h"
+
+io_syscall2(int, io_setup, io_setup, int, maxevents, io_context_t *, ctxp)
diff --git a/contrib/libs/libaio/io_submit.c b/contrib/libs/libaio/io_submit.c
new file mode 100644
index 0000000000..3cc9590703
--- /dev/null
+++ b/contrib/libs/libaio/io_submit.c
@@ -0,0 +1,23 @@
+/* io_submit
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <errno.h>
+#include "libaio.h"
+#include "syscall.h"
+
+io_syscall3(int, io_submit, io_submit, io_context_t, ctx, long, nr, struct iocb **, iocbs)
diff --git a/contrib/libs/libaio/libaio.h b/contrib/libs/libaio/libaio.h
new file mode 100644
index 0000000000..4a4e0f5cba
--- /dev/null
+++ b/contrib/libs/libaio/libaio.h
@@ -0,0 +1,271 @@
+/* /usr/include/libaio.h
+ *
+ * Copyright 2000,2001,2002 Red Hat, Inc.
+ *
+ * Written by Benjamin LaHaise <bcrl@redhat.com>
+ *
+ * libaio Linux async I/O interface
+ *
+ * This 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 of the License, or (at your option) any later version.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#ifndef __LIBAIO_H
+#define __LIBAIO_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/types.h>
+#include <string.h>
+
+struct timespec;
+struct sockaddr;
+struct iovec;
+
+typedef struct io_context *io_context_t;
+
+typedef enum io_iocb_cmd {
+	IO_CMD_PREAD = 0,
+	IO_CMD_PWRITE = 1,
+
+	IO_CMD_FSYNC = 2,
+	IO_CMD_FDSYNC = 3,
+
+	IO_CMD_POLL = 5, /* Never implemented in mainline, see io_prep_poll */
+	IO_CMD_NOOP = 6,
+	IO_CMD_PREADV = 7,
+	IO_CMD_PWRITEV = 8,
+} io_iocb_cmd_t;
+
+/* little endian, 32 bits */
+#if defined(__i386__) || (defined(__arm__) && !defined(__ARMEB__)) || \
+    defined(__sh__) || defined(__bfin__) || defined(__MIPSEL__) || \
+    defined(__cris__) || \
+    (defined(__GNUC__) && defined(__BYTE_ORDER__) && \
+         __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ && __SIZEOF_LONG__ == 4)
+#define PADDED(x, y)	x; unsigned y
+#define PADDEDptr(x, y)	x; unsigned y
+#define PADDEDul(x, y)	unsigned long x; unsigned y
+
+/* little endian, 64 bits */
+#elif defined(__ia64__) || defined(__x86_64__) || defined(__alpha__) || \
+      (defined(__aarch64__) && defined(__AARCH64EL__)) || \
+      (defined(__GNUC__) && defined(__BYTE_ORDER__) && \
+          __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ && __SIZEOF_LONG__ == 8)
+#define PADDED(x, y)	x, y
+#define PADDEDptr(x, y)	x
+#define PADDEDul(x, y)	unsigned long x
+
+/* big endian, 64 bits */
+#elif defined(__powerpc64__) || defined(__s390x__) || \
+      (defined(__sparc__) && defined(__arch64__)) || \
+      (defined(__aarch64__) && defined(__AARCH64EB__)) || \
+      (defined(__GNUC__) && defined(__BYTE_ORDER__) && \
+           __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ && __SIZEOF_LONG__ == 8)
+#define PADDED(x, y)	unsigned y; x
+#define PADDEDptr(x,y)	x
+#define PADDEDul(x, y)	unsigned long x
+
+/* big endian, 32 bits */
+#elif defined(__PPC__) || defined(__s390__) || \
+      (defined(__arm__) && defined(__ARMEB__)) || \
+      defined(__sparc__) || defined(__MIPSEB__) || defined(__m68k__) || \
+      defined(__hppa__) || defined(__frv__) || defined(__avr32__) || \
+      (defined(__GNUC__) && defined(__BYTE_ORDER__) && \
+           __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ && __SIZEOF_LONG__ == 4)
+#define PADDED(x, y)	unsigned y; x
+#define PADDEDptr(x, y)	unsigned y; x
+#define PADDEDul(x, y)	unsigned y; unsigned long x
+
+#else
+#error	endian?
+#endif
+
+struct io_iocb_poll {
+	PADDED(int events, __pad1);
+};	/* result code is the set of result flags or -'ve errno */
+
+struct io_iocb_sockaddr {
+	struct sockaddr *addr;
+	int		len;
+};	/* result code is the length of the sockaddr, or -'ve errno */
+
+struct io_iocb_common {
+	PADDEDptr(void	*buf, __pad1);
+	PADDEDul(nbytes, __pad2);
+	long long	offset;
+	long long	__pad3;
+	unsigned	flags;
+	unsigned	resfd;
+};	/* result code is the amount read or -'ve errno */
+
+struct io_iocb_vector {
+	const struct iovec	*vec;
+	int			nr;
+	long long		offset;
+};	/* result code is the amount read or -'ve errno */
+
+struct iocb {
+	PADDEDptr(void *data, __pad1);	/* Return in the io completion event */
+	PADDED(unsigned key, __pad2);	/* For use in identifying io requests */
+
+	short		aio_lio_opcode;	
+	short		aio_reqprio;
+	int		aio_fildes;
+
+	union {
+		struct io_iocb_common		c;
+		struct io_iocb_vector		v;
+		struct io_iocb_poll		poll;
+		struct io_iocb_sockaddr	saddr;
+	} u;
+};
+
+struct io_event {
+	PADDEDptr(void *data, __pad1);
+	PADDEDptr(struct iocb *obj,  __pad2);
+	PADDEDul(res,  __pad3);
+	PADDEDul(res2, __pad4);
+};
+
+#undef PADDED
+#undef PADDEDptr
+#undef PADDEDul
+
+typedef void (*io_callback_t)(io_context_t ctx, struct iocb *iocb, long res, long res2);
+
+/* library wrappers */
+extern int io_queue_init(int maxevents, io_context_t *ctxp);
+/*extern int io_queue_grow(io_context_t ctx, int new_maxevents);*/
+extern int io_queue_release(io_context_t ctx);
+/*extern int io_queue_wait(io_context_t ctx, struct timespec *timeout);*/
+extern int io_queue_run(io_context_t ctx);
+
+/* Actual syscalls */
+extern int io_setup(int maxevents, io_context_t *ctxp);
+extern int io_destroy(io_context_t ctx);
+extern int io_submit(io_context_t ctx, long nr, struct iocb *ios[]);
+extern int io_cancel(io_context_t ctx, struct iocb *iocb, struct io_event *evt);
+extern int io_getevents(io_context_t ctx_id, long min_nr, long nr, struct io_event *events, struct timespec *timeout);
+
+
+static inline void io_set_callback(struct iocb *iocb, io_callback_t cb)
+{
+	iocb->data = (void *)cb;
+}
+
+static inline void io_prep_pread(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PREAD;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = buf;
+	iocb->u.c.nbytes = count;
+	iocb->u.c.offset = offset;
+}
+
+static inline void io_prep_pwrite(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PWRITE;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = buf;
+	iocb->u.c.nbytes = count;
+	iocb->u.c.offset = offset;
+}
+
+static inline void io_prep_preadv(struct iocb *iocb, int fd, const struct iovec *iov, int iovcnt, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PREADV;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = (void *)iov;
+	iocb->u.c.nbytes = iovcnt;
+	iocb->u.c.offset = offset;
+}
+
+static inline void io_prep_pwritev(struct iocb *iocb, int fd, const struct iovec *iov, int iovcnt, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PWRITEV;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = (void *)iov;
+	iocb->u.c.nbytes = iovcnt;
+	iocb->u.c.offset = offset;
+}
+
+/* Jeff Moyer says this was implemented in Red Hat AS2.1 and RHEL3.
+ * AFAICT, it was never in mainline, and should not be used. --RR */
+static inline void io_prep_poll(struct iocb *iocb, int fd, int events)
+{
+        memset(iocb, 0, sizeof(*iocb));
+        iocb->aio_fildes = fd;
+        iocb->aio_lio_opcode = IO_CMD_POLL;
+        iocb->aio_reqprio = 0;
+        iocb->u.poll.events = events;
+}
+
+static inline int io_poll(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd, int events)
+{
+        io_prep_poll(iocb, fd, events);
+        io_set_callback(iocb, cb);
+        return io_submit(ctx, 1, &iocb);
+}
+
+static inline void io_prep_fsync(struct iocb *iocb, int fd)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_FSYNC;
+	iocb->aio_reqprio = 0;
+}
+
+static inline int io_fsync(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd)
+{
+	io_prep_fsync(iocb, fd);
+	io_set_callback(iocb, cb);
+	return io_submit(ctx, 1, &iocb);
+}
+
+static inline void io_prep_fdsync(struct iocb *iocb, int fd)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_FDSYNC;
+	iocb->aio_reqprio = 0;
+}
+
+static inline int io_fdsync(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd)
+{
+	io_prep_fdsync(iocb, fd);
+	io_set_callback(iocb, cb);
+	return io_submit(ctx, 1, &iocb);
+}
+
+static inline void io_set_eventfd(struct iocb *iocb, int eventfd)
+{
+	iocb->u.c.flags |= (1 << 0) /* IOCB_FLAG_RESFD */;
+	iocb->u.c.resfd = eventfd;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LIBAIO_H */
diff --git a/contrib/libs/libaio/raw_syscall.c b/contrib/libs/libaio/raw_syscall.c
new file mode 100644
index 0000000000..c3fe4b8deb
--- /dev/null
+++ b/contrib/libs/libaio/raw_syscall.c
@@ -0,0 +1,19 @@
+#include "syscall.h"
+
+#if defined(__ia64__)
+/* based on code from glibc by Jes Sorensen */
+__asm__(".text\n"
+	".globl	__ia64_aio_raw_syscall\n"
+	".proc	__ia64_aio_raw_syscall\n"
+	"__ia64_aio_raw_syscall:\n"
+	"alloc r2=ar.pfs,1,0,8,0\n"
+	"mov r15=r32\n"
+	"break 0x100000\n"
+	";;"
+	"br.ret.sptk.few b0\n"
+	".size __ia64_aio_raw_syscall, . - __ia64_aio_raw_syscall\n"
+	".endp __ia64_aio_raw_syscall"
+);
+#endif
+
+;
diff --git a/contrib/libs/libaio/static/.yandex_meta/licenses.list.txt b/contrib/libs/libaio/static/.yandex_meta/licenses.list.txt
new file mode 100644
index 0000000000..b3f64c1dbc
--- /dev/null
+++ b/contrib/libs/libaio/static/.yandex_meta/licenses.list.txt
@@ -0,0 +1,1069 @@
+====================File: COPYING====================
+
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
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+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
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+
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+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+You should also get your employer (if you work as a programmer) or
+your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James
+Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
+
+
+
+
+====================GPL-2.0-only====================
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+
+
+====================LGPL-2.0-or-later====================
+   This library is free software; you can redistribute it and/or
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+
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+
+
+====================LGPL-2.0-or-later====================
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+
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+
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+
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+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James
+Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/contrib/libs/libaio/static/ya.make b/contrib/libs/libaio/static/ya.make
new file mode 100644
index 0000000000..c4a7e200bb
--- /dev/null
+++ b/contrib/libs/libaio/static/ya.make
@@ -0,0 +1,50 @@
+# sources downloaded from: https://git.fedorahosted.org/cgit/libaio.git
+LIBRARY()
+
+IF (ARCH_ARMV7 OR ARCH_ARM64)
+    LICENSE(
+        GPL-2.0-only AND
+        LGPL-2.0-or-later AND
+        LGPL-2.1-only
+    )
+ELSE()
+    LICENSE(
+        LGPL-2.0-or-later AND
+        LGPL-2.1-only
+    )
+ENDIF()
+
+LICENSE_TEXTS(.yandex_meta/licenses.list.txt)
+
+OWNER(
+    vskipin
+    g:contrib
+    g:cpp-contrib
+)
+
+NO_UTIL()
+
+NO_RUNTIME()
+
+PROVIDES(libaio)
+
+SRCDIR(contrib/libs/libaio)
+
+ADDINCL(
+    contrib/libs/libaio
+)
+
+SRCS(
+    io_cancel.c
+    io_destroy.c
+    io_getevents.c
+    io_queue_init.c
+    io_queue_release.c
+    io_queue_run.c
+    io_queue_wait.c
+    io_setup.c
+    io_submit.c
+    raw_syscall.c
+)
+
+END()
diff --git a/contrib/libs/libaio/syscall-alpha.h b/contrib/libs/libaio/syscall-alpha.h
new file mode 100644
index 0000000000..467b74f07e
--- /dev/null
+++ b/contrib/libs/libaio/syscall-alpha.h
@@ -0,0 +1,209 @@
+#define __NR_io_setup		398
+#define __NR_io_destroy		399
+#define __NR_io_getevents	400
+#define __NR_io_submit		401
+#define __NR_io_cancel		402
+
+#define inline_syscall_r0_asm
+#define inline_syscall_r0_out_constraint        "=v"
+
+#define inline_syscall_clobbers                    \
+   "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", \
+   "$22", "$23", "$24", "$25", "$27", "$28", "memory"
+
+#define inline_syscall0(name, args...)                          \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2"                              \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19)                                       \
+	   : "0"(_sc_0)                                         \
+	   : inline_syscall_clobbers,                           \
+             "$16", "$17", "$18", "$20", "$21");                \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall1(name,arg1)                              \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3"                           \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16)                         \
+	   : "0"(_sc_0), "2"(_sc_16)                            \
+	   : inline_syscall_clobbers,                           \
+             "$17", "$18", "$20", "$21");                       \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall2(name,arg1,arg2)                         \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4"                        \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17)           \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17)               \
+	   : inline_syscall_clobbers,                           \
+             "$18", "$20", "$21");                              \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall3(name,arg1,arg2,arg3)                    \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5"                     \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18)                                       \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17),              \
+             "4"(_sc_18)                                        \
+	   : inline_syscall_clobbers, "$20", "$21");            \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall4(name,arg1,arg2,arg3,arg4)               \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        _sc_19 = (long) (arg4);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5 %6"                  \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18)                                       \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17),              \
+             "4"(_sc_18), "1"(_sc_19)                           \
+	   : inline_syscall_clobbers, "$20", "$21");            \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5)          \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+        register long _sc_20 __asm__("$20");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        _sc_19 = (long) (arg4);                                 \
+        _sc_20 = (long) (arg5);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7"               \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18), "=r"(_sc_20)                         \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17),              \
+             "4"(_sc_18), "1"(_sc_19), "5"(_sc_20)              \
+	   : inline_syscall_clobbers, "$21");                   \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6)     \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+        register long _sc_20 __asm__("$20");                    \
+        register long _sc_21 __asm__("$21");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        _sc_19 = (long) (arg4);                                 \
+        _sc_20 = (long) (arg5);                                 \
+        _sc_21 = (long) (arg6);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7 %8"            \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18), "=r"(_sc_20), "=r"(_sc_21)           \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), "4"(_sc_18), \
+             "1"(_sc_19), "5"(_sc_20), "6"(_sc_21)              \
+	   : inline_syscall_clobbers);                          \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define INLINE_SYSCALL1(name, nr, args...)      \
+({                                              \
+        long _sc_ret, _sc_err;                  \
+        inline_syscall##nr(__NR_##name, args);  \
+        if (_sc_err != 0)                       \
+        {                                       \
+            _sc_ret = -(_sc_ret);               \
+        }                                       \
+        _sc_ret;                                \
+})
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1)							\
+{                                                                       \
+   return (type)INLINE_SYSCALL1(sname, 1, arg1);                        \
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2)					\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 2, arg1, arg2);                  \
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3)				\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 3, arg1, arg2, arg3);            \
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 4, arg1, arg2, arg3, arg4);      \
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+	  type5,arg5)							\
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 5, arg1, arg2, arg3, arg4, arg5);\
+}
diff --git a/contrib/libs/libaio/syscall-arm.h b/contrib/libs/libaio/syscall-arm.h
new file mode 100644
index 0000000000..4a9b665969
--- /dev/null
+++ b/contrib/libs/libaio/syscall-arm.h
@@ -0,0 +1,116 @@
+/*
+ *  linux/include/asm-arm/unistd.h
+ *
+ *  Copyright (C) 2001-2005 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Please forward _all_ changes to this file to rmk@arm.linux.org.uk,
+ * no matter what the change is.  Thanks!
+ */
+
+#define __NR_OABI_SYSCALL_BASE	0x900000
+
+#if defined(__thumb__) || defined(__ARM_EABI__)
+#define __NR_SYSCALL_BASE	0
+#else
+#define __NR_SYSCALL_BASE	__NR_OABI_SYSCALL_BASE
+#endif
+
+#define __NR_io_setup			(__NR_SYSCALL_BASE+243)
+#define __NR_io_destroy			(__NR_SYSCALL_BASE+244)
+#define __NR_io_getevents		(__NR_SYSCALL_BASE+245)
+#define __NR_io_submit			(__NR_SYSCALL_BASE+246)
+#define __NR_io_cancel			(__NR_SYSCALL_BASE+247)
+
+#define __sys2(x) #x
+#define __sys1(x) __sys2(x)
+
+#if defined(__thumb__) || defined(__ARM_EABI__)
+#define __SYS_REG(name) register long __sysreg __asm__("r7") = __NR_##name;
+#define __SYS_REG_LIST(regs...) "r" (__sysreg) , ##regs
+#define __syscall(name) "swi\t0"
+#else
+#define __SYS_REG(name)
+#define __SYS_REG_LIST(regs...) regs
+#define __syscall(name) "swi\t" __sys1(__NR_##name) ""
+#endif
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1) {						\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0) )					\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2) {					\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1) )			\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3) {				\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __r2 __asm__("r2") = (long)arg3;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2) )		\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {		\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __r2 __asm__("r2") = (long)arg3;			\
+  register long __r3 __asm__("r3") = (long)arg4;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), "r" (__r3) ) \
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5)	\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) {\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __r2 __asm__("r2") = (long)arg3;			\
+  register long __r3 __asm__("r3") = (long)arg4;			\
+  register long __r4 __asm__("r4") = (long)arg5;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2),		\
+			  "r" (__r3), "r" (__r4) )			\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
diff --git a/contrib/libs/libaio/syscall-arm64.h b/contrib/libs/libaio/syscall-arm64.h
new file mode 100644
index 0000000000..031c571824
--- /dev/null
+++ b/contrib/libs/libaio/syscall-arm64.h
@@ -0,0 +1,101 @@
+/*
+ *  linux/include/asm-arm/unistd.h
+ *
+ *  Copyright (C) 2001-2005 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Please forward _all_ changes to this file to rmk@arm.linux.org.uk,
+ * no matter what the change is.  Thanks!
+ */
+
+#define __NR_io_setup			0
+#define __NR_io_destroy			1
+#define __NR_io_submit			2
+#define __NR_io_cancel			3
+#define __NR_io_getevents		4
+
+#define __sys2(x) #x
+#define __sys1(x) __sys2(x)
+
+#define __SYS_REG(name) register long __sysreg __asm__("w8") = __NR_##name;
+#define __SYS_REG_LIST(regs...) "r" (__sysreg) , ##regs
+#define __syscall(name) "svc\t#0"
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1) {						\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __res_x0 __asm__("x0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0) )					\
+	: "memory" );							\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2) {					\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __res_x0 __asm__("x0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1) )			\
+	: "memory" );							\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3) {				\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __x2 __asm__("x2") = (long)arg3;			\
+  register long __res_x0 __asm__("x0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1), "r" (__x2) )		\
+	: "memory" );							\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {		\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __x2 __asm__("x2") = (long)arg3;			\
+  register long __x3 __asm__("x3") = (long)arg4;			\
+  register long __res_x0 __asm__("x0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1), "r" (__x2), "r" (__x3) ) \
+	: "memory" );							\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5)	\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) {\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __x2 __asm__("x2") = (long)arg3;			\
+  register long __x3 __asm__("x3") = (long)arg4;			\
+  register long __x4 __asm__("x4") = (long)arg5;			\
+  register long __res_x0 __asm__("x0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1), "r" (__x2),		\
+			  "r" (__x3), "r" (__x4) )			\
+	: "memory" );							\
+  return (type) __res_x0;						\
+}
diff --git a/contrib/libs/libaio/syscall-generic.h b/contrib/libs/libaio/syscall-generic.h
new file mode 100644
index 0000000000..24d7c7c816
--- /dev/null
+++ b/contrib/libs/libaio/syscall-generic.h
@@ -0,0 +1,29 @@
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#define _body_io_syscall(sname, args...) \
+{ \
+	int ret = syscall(__NR_##sname, ## args); \
+	return ret < 0 ? -errno : ret; \
+}
+
+#define io_syscall1(type,fname,sname,type1,arg1) \
+type fname(type1 arg1) \
+_body_io_syscall(sname, (long)arg1)
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2) \
+type fname(type1 arg1,type2 arg2) \
+_body_io_syscall(sname, (long)arg1, (long)arg2)
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3) \
+type fname(type1 arg1,type2 arg2,type3 arg3) \
+_body_io_syscall(sname, (long)arg1, (long)arg2, (long)arg3)
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
+_body_io_syscall(sname, (long)arg1, (long)arg2, (long)arg3, (long)arg4)
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, type5,arg5) \
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
+_body_io_syscall(sname, (long)arg1, (long)arg2, (long)arg3, (long)arg4, (long)arg5)
diff --git a/contrib/libs/libaio/syscall-i386.h b/contrib/libs/libaio/syscall-i386.h
new file mode 100644
index 0000000000..9576975a19
--- /dev/null
+++ b/contrib/libs/libaio/syscall-i386.h
@@ -0,0 +1,72 @@
+#define __NR_io_setup		245
+#define __NR_io_destroy		246
+#define __NR_io_getevents	247
+#define __NR_io_submit		248
+#define __NR_io_cancel		249
+
+#define io_syscall1(type,fname,sname,type1,arg1)	\
+type fname(type1 arg1)					\
+{							\
+long __res;						\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"			\
+		  "int $0x80\n"				\
+		  "xchgl %%edi,%%ebx"			\
+	: "=a" (__res)					\
+	: "0" (__NR_##sname),"D" ((long)(arg1)));	\
+return __res;						\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2)					\
+{									\
+long __res;								\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "xchgl %%edi,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"c" ((long)(arg2)));	\
+return __res;								\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3)				\
+{									\
+long __res;								\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "xchgl %%edi,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"c" ((long)(arg2)),	\
+		  "d" ((long)(arg3)));					\
+return __res;								\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+long __res;								\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "xchgl %%edi,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"c" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"S" ((long)(arg4)));			\
+return __res;								\
+} 
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+	  type5,arg5)							\
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{									\
+long __res;								\
+long tmp;								\
+__asm__ volatile ("movl %%ebx,%7\n"					\
+		  "movl %2,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "movl %7,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"rm" ((long)(arg1)),"c" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
+	  "m" (tmp));							\
+return __res;								\
+}
diff --git a/contrib/libs/libaio/syscall-ia64.h b/contrib/libs/libaio/syscall-ia64.h
new file mode 100644
index 0000000000..52ce9dd7d6
--- /dev/null
+++ b/contrib/libs/libaio/syscall-ia64.h
@@ -0,0 +1,45 @@
+#define __NR_io_setup		1238
+#define __NR_io_destroy		1239
+#define __NR_io_getevents	1240
+#define __NR_io_submit		1241
+#define __NR_io_cancel		1242
+
+#define __ia64_raw_syscall(fname, sname) \
+	__asm__ (".text\n"						\
+		".globl " SYMSTR(fname) "\n"				\
+		".proc " SYMSTR(fname) "\n"				\
+		SYMSTR(fname) ":\n"					\
+		"	mov r15=" SYMSTR( __NR_ ## sname ) "\n"		\
+		"	break 0x100000\n"				\
+		"	;;\n"						\
+		"	cmp.eq p6,p0=-1,r10\n"				\
+		"	;;\n"						\
+		"	(p6) sub r8=0,r8\n"				\
+		"	br.ret.sptk.few b0\n"				\
+		".size " SYMSTR(fname) ", . - " SYMSTR(fname) "\n"	\
+		".endp " SYMSTR(fname) "\n"				\
+	);
+
+#define io_syscall0(type, name)						\
+	extern type name(void);						\
+	__ia64_raw_syscall(name);
+
+#define io_syscall1(type, fname, sname, type1, arg1)			\
+	extern type fname(type1 arg1);					\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall2(type, fname, sname, type1, arg1, type2, arg2)	\
+	extern type fname(type1 arg1, type2 arg2);			\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall3(type, fname, sname, type1, arg1, type2, arg2, type3, arg3)	\
+	extern type fname(type1 arg1, type2 arg2, type3 arg3);		\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall4(type, fname, sname, type1, arg1, type2, arg2, type3, arg3, type4, arg4)	\
+	extern type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4);		\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall5(type, fname, sname, type1, arg1, type2, arg2, type3, arg3, type4, arg4, type5, arg5)	\
+	extern type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5);			\
+	__ia64_raw_syscall(fname, sname);
diff --git a/contrib/libs/libaio/syscall-ppc.h b/contrib/libs/libaio/syscall-ppc.h
new file mode 100644
index 0000000000..ca70dd2092
--- /dev/null
+++ b/contrib/libs/libaio/syscall-ppc.h
@@ -0,0 +1,94 @@
+#define __NR_io_setup		227
+#define __NR_io_destroy		228
+#define __NR_io_getevents	229
+#define __NR_io_submit		230
+#define __NR_io_cancel		231
+
+/* On powerpc a system call basically clobbers the same registers like a
+ * function call, with the exception of LR (which is needed for the
+ * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
+ * an error return status).
+ */
+
+#define __syscall_nr(nr, type, name, args...)				\
+	unsigned long __sc_ret, __sc_err;				\
+	{								\
+		register unsigned long __sc_0  __asm__ ("r0");		\
+		register unsigned long __sc_3  __asm__ ("r3");		\
+		register unsigned long __sc_4  __asm__ ("r4");		\
+		register unsigned long __sc_5  __asm__ ("r5");		\
+		register unsigned long __sc_6  __asm__ ("r6");		\
+		register unsigned long __sc_7  __asm__ ("r7");		\
+		register unsigned long __sc_8  __asm__ ("r8");		\
+									\
+		__sc_loadargs_##nr(name, args);				\
+		__asm__ __volatile__					\
+			("sc           \n\t"				\
+			 "mfcr %0      "				\
+			: "=&r" (__sc_0),				\
+			  "=&r" (__sc_3),  "=&r" (__sc_4),		\
+			  "=&r" (__sc_5),  "=&r" (__sc_6),		\
+			  "=&r" (__sc_7),  "=&r" (__sc_8)		\
+			: __sc_asm_input_##nr				\
+			: "cr0", "ctr", "memory",			\
+			        "r9", "r10","r11", "r12");		\
+		__sc_ret = __sc_3;					\
+		__sc_err = __sc_0;					\
+	}								\
+	if (__sc_err & 0x10000000) return -((int)__sc_ret);		\
+	return (type) __sc_ret
+
+#define __sc_loadargs_0(name, dummy...)					\
+	__sc_0 = __NR_##name
+#define __sc_loadargs_1(name, arg1)					\
+	__sc_loadargs_0(name);						\
+	__sc_3 = (unsigned long) (arg1)
+#define __sc_loadargs_2(name, arg1, arg2)				\
+	__sc_loadargs_1(name, arg1);					\
+	__sc_4 = (unsigned long) (arg2)
+#define __sc_loadargs_3(name, arg1, arg2, arg3)				\
+	__sc_loadargs_2(name, arg1, arg2);				\
+	__sc_5 = (unsigned long) (arg3)
+#define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)			\
+	__sc_loadargs_3(name, arg1, arg2, arg3);			\
+	__sc_6 = (unsigned long) (arg4)
+#define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)		\
+	__sc_loadargs_4(name, arg1, arg2, arg3, arg4);			\
+	__sc_7 = (unsigned long) (arg5)
+
+#define __sc_asm_input_0 "0" (__sc_0)
+#define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
+#define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
+#define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
+#define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
+#define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
+
+#define io_syscall1(type,fname,sname,type1,arg1)				\
+type fname(type1 arg1)							\
+{									\
+	__syscall_nr(1, type, sname, arg1);				\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1, type2 arg2)					\
+{									\
+	__syscall_nr(2, type, sname, arg1, arg2);			\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1, type2 arg2, type3 arg3)				\
+{									\
+	__syscall_nr(3, type, sname, arg1, arg2, arg3);			\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+	__syscall_nr(4, type, sname, arg1, arg2, arg3, arg4);		\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
+{									\
+	__syscall_nr(5, type, sname, arg1, arg2, arg3, arg4, arg5);	\
+}
diff --git a/contrib/libs/libaio/syscall-s390.h b/contrib/libs/libaio/syscall-s390.h
new file mode 100644
index 0000000000..3ec5ee34ee
--- /dev/null
+++ b/contrib/libs/libaio/syscall-s390.h
@@ -0,0 +1,131 @@
+#define __NR_io_setup		243
+#define __NR_io_destroy		244
+#define __NR_io_getevents	245
+#define __NR_io_submit		246
+#define __NR_io_cancel		247
+
+#define io_svc_clobber "1", "cc", "memory"
+
+#define io_syscall1(type,fname,sname,type1,arg1)		\
+type fname(type1 arg1) {					\
+	register type1 __arg1 asm("2") = arg1;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    .svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)	\
+type fname(type1 arg1, type2 arg2) {				\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,	\
+		    type3,arg3)					\
+type fname(type1 arg1, type2 arg2, type3 arg3) {		\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register type3 __arg3 asm("4") = arg3;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2),					\
+		  "d" (__arg3)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,	\
+		    type3,arg3,type4,arg4)			\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {	\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register type3 __arg3 asm("4") = arg3;			\
+	register type4 __arg4 asm("5") = arg4;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2),					\
+		  "d" (__arg3),					\
+		  "d" (__arg4)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,	\
+		    type3,arg3,type4,arg4,type5,arg5)		\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4,	\
+	   type5 arg5) {					\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register type3 __arg3 asm("4") = arg3;			\
+	register type4 __arg4 asm("5") = arg4;			\
+	register type5 __arg5 asm("6") = arg5;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2),					\
+		  "d" (__arg3),					\
+		  "d" (__arg4),					\
+		  "d" (__arg5)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
diff --git a/contrib/libs/libaio/syscall-sparc.h b/contrib/libs/libaio/syscall-sparc.h
new file mode 100644
index 0000000000..dd8033d015
--- /dev/null
+++ b/contrib/libs/libaio/syscall-sparc.h
@@ -0,0 +1,103 @@
+#include <errno.h>
+
+#define __NR_io_setup           268
+#define __NR_io_destroy         269
+#define __NR_io_submit          270
+#define __NR_io_cancel          271
+#define __NR_io_getevents       272
+
+#define io_syscall1(type,fname,sname,type1,arg1) \
+type fname(type1 arg1) \
+{ \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##sname; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+__asm__ __volatile__ ("t 0x10\n\t" \
+                      "bcc 1f\n\t" \
+                      "mov %%o0, %0\n\t" \
+                      "sub %%g0, %%o0, %0\n\t" \
+                      "1:\n\t" \
+                      : "=r" (__res), "=&r" (__o0) \
+                      : "1" (__o0), "r" (__g1) \
+                      : "cc"); \
+return (type) __res; \
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2) \
+type fname(type1 arg1,type2 arg2) \
+{ \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##sname; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+__asm__ __volatile__ ("t 0x10\n\t" \
+                      "bcc 1f\n\t" \
+                      "mov %%o0, %0\n\t" \
+                      "sub %%g0, %%o0, %0\n\t" \
+                      "1:\n\t" \
+                      : "=r" (__res), "=&r" (__o0) \
+                      : "1" (__o0), "r" (__o1), "r" (__g1) \
+                      : "cc"); \
+return (type) __res; \
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3) \
+type fname(type1 arg1,type2 arg2,type3 arg3) \
+{ \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##sname; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+__asm__ __volatile__ ("t 0x10\n\t" \
+                      "bcc 1f\n\t" \
+                      "mov %%o0, %0\n\t" \
+                      "sub %%g0, %%o0, %0\n\t" \
+                      "1:\n\t" \
+                      : "=r" (__res), "=&r" (__o0) \
+                      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1) \
+                      : "cc"); \
+return (type) __res; \
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
+{ \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##sname; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+register long __o3 __asm__ ("o3") = (long)(arg4); \
+__asm__ __volatile__ ("t 0x10\n\t" \
+                      "bcc 1f\n\t" \
+                      "mov %%o0, %0\n\t" \
+                      "sub %%g0, %%o0, %0\n\t" \
+                      "1:\n\t" \
+                      : "=r" (__res), "=&r" (__o0) \
+                      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__g1) \
+                      : "cc"); \
+return (type) __res; \
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+          type5,arg5) \
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
+{ \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##sname; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+register long __o3 __asm__ ("o3") = (long)(arg4); \
+register long __o4 __asm__ ("o4") = (long)(arg5); \
+__asm__ __volatile__ ("t 0x10\n\t" \
+                      "bcc 1f\n\t" \
+                      "mov %%o0, %0\n\t" \
+                      "sub %%g0, %%o0, %0\n\t" \
+                      "1:\n\t" \
+                      : "=r" (__res), "=&r" (__o0) \
+                      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__o4), "r" (__g1) \
+                      : "cc"); \
+return (type) __res; \
+}
diff --git a/contrib/libs/libaio/syscall-x86_64.h b/contrib/libs/libaio/syscall-x86_64.h
new file mode 100644
index 0000000000..9361856723
--- /dev/null
+++ b/contrib/libs/libaio/syscall-x86_64.h
@@ -0,0 +1,63 @@
+#define __NR_io_setup		206
+#define __NR_io_destroy		207
+#define __NR_io_getevents	208
+#define __NR_io_submit		209
+#define __NR_io_cancel		210
+
+#define __syscall_clobber "r11","rcx","memory" 
+#define __syscall "syscall"
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1)							\
+{									\
+long __res;								\
+__asm__ volatile (__syscall						\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)) : __syscall_clobber );	\
+return __res;								\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2)					\
+{									\
+long __res;								\
+__asm__ volatile (__syscall						\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)) : __syscall_clobber ); \
+return __res;								\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3)				\
+{									\
+long __res;								\
+__asm__ volatile (__syscall						\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)),	\
+		  "d" ((long)(arg3)) : __syscall_clobber);		\
+return __res;								\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+long __res;								\
+__asm__ volatile ("movq %5,%%r10 ;" __syscall				\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"g" ((long)(arg4)) : __syscall_clobber,"r10" ); \
+return __res;								\
+} 
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+	  type5,arg5)							\
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{									\
+long __res;								\
+__asm__ volatile ("movq %5,%%r10 ; movq %6,%%r8 ; " __syscall		\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"g" ((long)(arg4)),"g" ((long)(arg5)) :	\
+	__syscall_clobber,"r8","r10" );					\
+return __res;								\
+}
diff --git a/contrib/libs/libaio/syscall.h b/contrib/libs/libaio/syscall.h
new file mode 100644
index 0000000000..a2da0307a0
--- /dev/null
+++ b/contrib/libs/libaio/syscall.h
@@ -0,0 +1,34 @@
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#define _SYMSTR(str)	#str
+#define SYMSTR(str)	_SYMSTR(str)
+
+#define SYMVER(compat_sym, orig_sym, ver_sym)	\
+	__asm__(".symver " SYMSTR(compat_sym) "," SYMSTR(orig_sym) "@LIBAIO_" SYMSTR(ver_sym));
+
+#define DEFSYMVER(compat_sym, orig_sym, ver_sym)	\
+	__asm__(".symver " SYMSTR(compat_sym) "," SYMSTR(orig_sym) "@@LIBAIO_" SYMSTR(ver_sym));
+
+#if defined(__i386__)
+#include "syscall-i386.h"
+#elif defined(__x86_64__)
+#include "syscall-x86_64.h"
+#elif defined(__ia64__)
+#include "syscall-ia64.h"
+#elif defined(__PPC__)
+#include "syscall-ppc.h"
+#elif defined(__s390__)
+#include "syscall-s390.h"
+#elif defined(__alpha__)
+#include "syscall-alpha.h"
+#elif defined(__arm__)
+#include "syscall-arm.h"
+#elif defined(__sparc__)
+#include "syscall-sparc.h"
+#elif defined(__aarch64__)
+#include "syscall-arm64.h"
+#else
+#warning "using generic syscall method"
+#include "syscall-generic.h"
+#endif
diff --git a/contrib/libs/libaio/vsys_def.h b/contrib/libs/libaio/vsys_def.h
new file mode 100644
index 0000000000..13d032e330
--- /dev/null
+++ b/contrib/libs/libaio/vsys_def.h
@@ -0,0 +1,24 @@
+/* libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+extern int vsys_io_setup(unsigned nr_reqs, io_context_t *ctxp);
+extern int vsys_io_destroy(io_context_t ctx);
+extern int vsys_io_submit(io_context_t ctx, long nr, struct iocb *iocbs[]);
+extern int vsys_io_cancel(io_context_t ctx, struct iocb *iocb);
+extern int vsys_io_wait(io_context_t ctx, struct iocb *iocb, const struct timespec *when);
+extern int vsys_io_getevents(io_context_t ctx_id, long nr, struct io_event *events, const struct timespec *timeout);
+
diff --git a/contrib/libs/libaio/ya.make b/contrib/libs/libaio/ya.make
new file mode 100644
index 0000000000..3eb09b549b
--- /dev/null
+++ b/contrib/libs/libaio/ya.make
@@ -0,0 +1,34 @@
+LIBRARY()
+
+# git repository: https://pagure.io/libaio.git
+# revision: 5a546a834c36070648158d19dd564762d59f8eb8
+
+LICENSE(Service-Dll-Harness)
+
+WITHOUT_LICENSE_TEXTS()
+
+VERSION(2015-07-01-5a546a834c36070648158d19dd564762d59f8eb8)
+
+OWNER(
+    g:contrib
+    g:cpp-contrib
+)
+
+NO_RUNTIME()
+
+IF (USE_DYNAMIC_AIO)
+    PEERDIR(
+        contrib/libs/libaio/dynamic
+    )
+ELSE()
+    PEERDIR(
+        contrib/libs/libaio/static
+    )
+ENDIF()
+
+END()
+
+RECURSE(
+    dynamic
+    static
+)