[src/trunk]: src/sys/compat add uvm swap compat code.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/519e9f68bd7c
branches:  trunk
changeset: 321408:519e9f68bd7c
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Mar 15 03:13:51 2018 +0000

description:
add uvm swap compat code.

diffstat:

 sys/compat/common/Makefile.sysio |   6 +-
 sys/compat/common/compat_mod.c   |  17 +++++++-
 sys/compat/common/uvm_13.c       |  84 +++++++++++++++++++++++++++++++++++++++
 sys/compat/common/uvm_50.c       |  85 ++++++++++++++++++++++++++++++++++++++++
 sys/compat/sys/uvm.h             |  69 ++++++++++++++++++++++++++++++++
 5 files changed, 256 insertions(+), 5 deletions(-)

diffs (truncated from 339 to 300 lines):

diff -r 9a3c9109ce94 -r 519e9f68bd7c sys/compat/common/Makefile.sysio
--- a/sys/compat/common/Makefile.sysio  Thu Mar 15 02:25:31 2018 +0000
+++ b/sys/compat/common/Makefile.sysio  Thu Mar 15 03:13:51 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.sysio,v 1.7 2016/11/05 23:30:22 pgoyette Exp $
+#      $NetBSD: Makefile.sysio,v 1.8 2018/03/15 03:13:51 christos Exp $
 
 # Sources for syscall and ioctl compatibility across the versions.
 
@@ -13,7 +13,7 @@
 SRCS+= kern_xxx_12.c vfs_syscalls_12.c vm_12.c
 
 # Compatibility code for NetBSD 1.3
-SRCS+= kern_sig_13.c
+SRCS+= kern_sig_13.c uvm_13.c
 
 # Compatibility code for NetBSD 1.6
 SRCS+= kern_sig_16.c
@@ -32,7 +32,7 @@
 
 # Compatibility code for NetBSD 5.0
 SRCS+= kern_50.c kern_time_50.c kern_select_50.c rndpseudo_50.c rtsock_50.c \
-       vfs_syscalls_50.c  uipc_syscalls_50.c
+       vfs_syscalls_50.c  uipc_syscalls_50.c uvm_50.c
 
 # Compatibility code for NetBSD 6.0
 SRCS+= kern_sa_60.c tty_60.c kern_time_60.c
diff -r 9a3c9109ce94 -r 519e9f68bd7c sys/compat/common/compat_mod.c
--- a/sys/compat/common/compat_mod.c    Thu Mar 15 02:25:31 2018 +0000
+++ b/sys/compat/common/compat_mod.c    Thu Mar 15 03:13:51 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: compat_mod.c,v 1.24 2016/11/05 23:30:22 pgoyette Exp $ */
+/*     $NetBSD: compat_mod.c,v 1.25 2018/03/15 03:13:51 christos Exp $ */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: compat_mod.c,v 1.24 2016/11/05 23:30:22 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: compat_mod.c,v 1.25 2018/03/15 03:13:51 christos Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_compat_netbsd.h"
@@ -60,6 +60,7 @@
 #include <compat/common/compat_util.h>
 #include <compat/common/compat_mod.h>
 #include <compat/common/if_43.h>
+#include <compat/sys/uvm.h>
 
 #if defined(COMPAT_09) || defined(COMPAT_43) || defined(COMPAT_50)
 static struct sysctllog *compat_clog = NULL;
@@ -238,6 +239,9 @@
                ttcompatvec = ttcompat;
                if_43_init();
 #endif
+#ifdef COMPAT_13
+               uvm_13_init();
+#endif
 #ifdef COMPAT_16
 #if defined(COMPAT_SIGCONTEXT)
                KASSERT(emul_netbsd.e_sigobject == NULL);
@@ -251,9 +255,15 @@
 #endif
 #endif
                compat_sysctl_init();
+#ifdef COMPAT_50
+               uvm_50_init();
+#endif
                return 0;
 
        case MODULE_CMD_FINI:
+#ifdef COMPAT_13
+               uvm_13_fini();
+#endif
 #ifdef COMPAT_16
                /*
                 * Ensure sendsig_sigcontext() is not being used.
@@ -308,6 +318,9 @@
 #endif
 #endif /* COMPAT_16 */
                compat_sysctl_fini();
+#ifdef COMPAT_50
+               uvm_50_fini();
+#endif
                return 0;
 
        default:
diff -r 9a3c9109ce94 -r 519e9f68bd7c sys/compat/common/uvm_13.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/compat/common/uvm_13.c        Thu Mar 15 03:13:51 2018 +0000
@@ -0,0 +1,84 @@
+/*     $NetBSD: uvm_13.c,v 1.1 2018/03/15 03:13:51 christos Exp $      */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: uvm_13.c,v 1.1 2018/03/15 03:13:51 christos Exp $");
+
+#if defined(_KERNEL) || defined(_MODULE)
+#if defined(_KERNEL_OPT)
+#include "opt_vmswap.h"
+#else
+#define VMSWAP /* XXX */
+#endif
+#endif
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+#include <sys/syscallargs.h>
+#include <sys/swap.h>
+#include <uvm/uvm.h>
+#include <uvm/uvm_swap.h>
+
+#include <compat/sys/uvm.h>
+
+static void
+swapent13_cvt(void *p, const struct swapent *se)
+{
+       struct swapent13 *sep13 = p;
+
+       sep13->se13_dev = se->se_dev;
+       sep13->se13_flags = se->se_flags;
+       sep13->se13_nblks = se->se_nblks;
+       sep13->se13_inuse = se->se_inuse;
+       sep13->se13_priority = se->se_priority;
+}
+
+
+static int
+compat_uvm_swap_stats13(const struct sys_swapctl_args *uap, register_t *retval)
+{
+     return uvm_swap_stats(SCARG(uap, arg), SCARG(uap, misc),
+        swapent13_cvt, sizeof(struct swapent13), retval);
+
+}
+
+void
+uvm_13_init(void)
+{
+       uvm_swap_stats13 = compat_uvm_swap_stats13;
+}
+
+void
+uvm_13_fini(void)
+{
+       uvm_swap_stats13 = (void *)enosys;
+}
diff -r 9a3c9109ce94 -r 519e9f68bd7c sys/compat/common/uvm_50.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/compat/common/uvm_50.c        Thu Mar 15 03:13:51 2018 +0000
@@ -0,0 +1,85 @@
+/*     $NetBSD: uvm_50.c,v 1.1 2018/03/15 03:13:51 christos Exp $      */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: uvm_50.c,v 1.1 2018/03/15 03:13:51 christos Exp $");
+
+#if defined(_KERNEL) || defined(_MODULE)
+#if defined(_KERNEL_OPT)
+#include "opt_vmswap.h"
+#else
+#define VMSWAP /* XXX */
+#endif
+#endif
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+#include <sys/syscallargs.h>
+#include <sys/swap.h>
+#include <uvm/uvm.h>
+
+#include <compat/sys/uvm.h>
+
+static void
+swapent50_cvt(void *p, const struct swapent *se)
+{
+       struct swapent50 *sep50 = p;
+
+       sep50->se50_dev = se->se_dev;
+       sep50->se50_flags = se->se_flags;
+       sep50->se50_nblks = se->se_nblks;
+       sep50->se50_inuse = se->se_inuse;
+       sep50->se50_priority = se->se_priority;
+       KASSERT(sizeof(se->se_path) <= sizeof(sep50->se50_path));
+       strcpy(sep50->se50_path, se->se_path);
+}
+
+
+static int
+compat_uvm_swap_stats50(const struct sys_swapctl_args *uap, register_t *retval)
+{
+     return uvm_swap_stats(SCARG(uap, arg), SCARG(uap, misc),
+        swapent50_cvt, sizeof(struct swapent50), retval);
+
+}
+
+void
+uvm_50_init(void)
+{
+       uvm_swap_stats50 = compat_uvm_swap_stats50;
+}
+
+void
+uvm_50_fini(void)
+{
+       uvm_swap_stats50 = (void *)enosys;
+}
diff -r 9a3c9109ce94 -r 519e9f68bd7c sys/compat/sys/uvm.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/compat/sys/uvm.h      Thu Mar 15 03:13:51 2018 +0000
@@ -0,0 +1,69 @@
+/*     $NetBSD: uvm.h,v 1.1 2018/03/15 03:13:51 christos Exp $ */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */