1 files changed, 145 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/mmap16.sh b/tools/test/stress2/misc/mmap16.sh
new file mode 100755
index 000000000000..15a310505edd
--- /dev/null
+++ b/tools/test/stress2/misc/mmap16.sh
@@ -0,0 +1,145 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 EMC Corp.
+# All rights reserved.
+#
+# 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 AUTHOR 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 AUTHOR 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.
+#
+
+# Test scenario by kib@
+
+[ `uname -m` = "i386" ] || exit 0
+
+. ../default.cfg
+
+grep -q MAP_GUARD /usr/include/sys/mman.h 2>/dev/null || exit 0
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > mmap16.c
+mycc -o mmap16 -Wall -Wextra -O2 -g mmap16.c -lpthread || exit 1
+rm -f mmap16.c /tmp/mmap16.core
+
+echo "Expect:
+    mmap16: mprotect: Permission denied"
+/tmp/mmap16 > /dev/null
+s=$?
+
+rm -f /tmp/mmap16 /tmp/mmap16.core
+exit $s
+EOF
+/* $Id: map_hole.c,v 1.6 2014/06/16 05:52:03 kostik Exp kostik $ */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+
+#include <err.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+static void
+sighandler(int signo, siginfo_t *info, void *uap1)
+{
+	static char scratch;
+	ucontext_t *uap;
+
+	uap = uap1;
+	printf("SIG%s(%d) at %p (%%eax %p)\n",
+	    signo < sys_nsig ? sys_signame[signo] : "SOME", signo,
+	    info->si_addr, (void *)(uintptr_t)uap->uc_mcontext.mc_eax);
+	uap->uc_mcontext.mc_eax = (uintptr_t)&scratch;
+}
+
+static void
+access_addr(char *addr)
+{
+	char r;
+
+	r = '1';
+	printf("accessing %p\n", addr);
+	__asm __volatile("movb	%0,(%%eax)" : : "i"(r), "a"(addr) : "memory");
+	printf("done\n");
+}
+
+static int pagesz;
+
+static void
+test_access(char *addr)
+{
+	struct rusage ru;
+	long majflt, minflt;
+
+	if (getrusage(RUSAGE_THREAD, &ru) == -1)
+		err(1, "getrusage");
+	majflt = ru.ru_majflt;
+	minflt = ru.ru_minflt;
+	access_addr(addr);
+	if (mprotect(addr, pagesz, PROT_READ | PROT_WRITE) == -1)
+		warn("mprotect");
+	access_addr(addr);
+	if (getrusage(RUSAGE_THREAD, &ru) == -1)
+		err(1, "getrusage");
+	majflt = ru.ru_majflt - majflt;
+	minflt = ru.ru_minflt - minflt;
+	printf("majflt %ld minflt %ld\n", majflt, minflt);
+}
+
+int
+main(void)
+{
+	struct sigaction sa;
+	char *addr;
+	char cmd[128];
+
+	bzero(&sa, sizeof(sa));
+	sa.sa_sigaction = sighandler;
+	sa.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGSEGV, &sa, NULL) == -1)
+		err(1, "sigaction");
+	pagesz = getpagesize();
+
+	printf("MAP_GUARD\n");
+	addr = mmap(NULL, pagesz, PROT_NONE, MAP_GUARD, -1, 0);
+	if (addr == (char *)MAP_FAILED)
+		err(1, "FAIL: mmap(MAP_GUARD)");
+	test_access(addr);
+
+	printf("PROT_NONE wire\n");
+	addr = mmap(NULL, pagesz, PROT_NONE, MAP_ANON, -1, 0);
+	if (addr == (char *)MAP_FAILED)
+		err(1, "mmap(PROT_NONE)");
+	if (mlock(addr, pagesz) == -1)
+		if (errno != ENOMEM)
+			err(1, "mlock");
+	test_access(addr);
+
+	snprintf(cmd, sizeof(cmd), "procstat -v %d", getpid());
+	system(cmd);
+
+	return (0);
+}