Import NetBSD system call regression tests. They were written with

ATF (Automated Testing Framework), so we use a small wrapper to map 
it to our bsd.regress.mk framework.  Only half of the 80 NetBSD
tests have been taken, the others need more work to adapt.  Of them 
34 syscall tests pass.
Moritz Buhl ported the tests to OpenBSD.

1 files changed, 269 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_getrusage.c b/src/regress/lib/libc/sys/t_getrusage.c
new file mode 100644
index 0000000000..481d73431b
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_getrusage.c
@@ -0,0 +1,269 @@
+/*      $OpenBSD: t_getrusage.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $       */
+/* $NetBSD: t_getrusage.c,v 1.8 2018/05/09 08:45:03 mrg Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * 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 "macros.h"
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_getrusage.c,v 1.8 2018/05/09 08:45:03 mrg Exp $");
+
+#include <sys/resource.h>
+#include <sys/time.h>
+
+#include "atf-c.h"
+#include <stdio.h>
+#include <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+static void             work(void);
+static void             sighandler(int);
+
+static const size_t     maxiter = 2000;
+
+static void
+sighandler(int signo __unused)
+{
+        /* Nothing. */
+}
+
+static void
+work(void)
+{
+        size_t n = UINT16_MAX * 10;
+
+        while (n > 0) {
+#ifdef __or1k__
+                 asm volatile("l.nop"); /* Do something. */
+#elif defined(__ia64__)
+                 asm volatile("nop 0"); /* Do something. */
+#else
+                 asm volatile("nop");   /* Do something. */
+#endif
+                 n--;
+        }
+}
+
+ATF_TC(getrusage_err);
+ATF_TC_HEAD(getrusage_err, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test error conditions");
+}
+
+ATF_TC_BODY(getrusage_err, tc)
+{
+        struct rusage ru;
+
+        errno = 0;
+
+        ATF_REQUIRE(getrusage(INT_MAX, &ru) != 0);
+        ATF_REQUIRE(errno == EINVAL);
+
+        errno = 0;
+
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, (void *)0) != 0);
+        ATF_REQUIRE(errno == EFAULT);
+}
+
+ATF_TC(getrusage_sig);
+ATF_TC_HEAD(getrusage_sig, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test signal count with getrusage(2)");
+}
+
+ATF_TC_BODY(getrusage_sig, tc)
+{
+        struct rusage ru;
+        const long n = 5;
+        int i;
+
+        /*
+         * Test that signals are recorded.
+         */
+        ATF_REQUIRE(signal(SIGUSR1, sighandler) != SIG_ERR);
+
+        for (i = 0; i < n; i++)
+                ATF_REQUIRE(raise(SIGUSR1) == 0);
+
+        (void)memset(&ru, 0, sizeof(struct rusage));
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0);
+
+        if (n != ru.ru_nsignals)
+                atf_tc_fail("getrusage(2) did not record signals");
+}
+
+ATF_TC(getrusage_maxrss);
+ATF_TC_HEAD(getrusage_maxrss, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test maxrss growing with getrusage(2)");
+}
+
+ATF_TC_BODY(getrusage_maxrss, tc)
+{
+        struct rusage ru;
+        long maxrss;
+        int i, fd;
+
+#define DUMP_FILE       "dump"
+
+        fd = open(DUMP_FILE, O_WRONLY|O_CREAT|O_TRUNC, 0222);
+        ATF_REQUIRE(fd != -1);
+
+        (void)memset(&ru, 0, sizeof(struct rusage));
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0);
+        maxrss = ru.ru_maxrss;
+
+#define CHUNK (1024 * 1024)
+        for (i = 0; i < 40; i++) {
+                void *p = malloc(CHUNK);
+                memset(p, 0, CHUNK);
+                write(fd, p, CHUNK);
+        }
+        close(fd);
+        unlink(DUMP_FILE);
+
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0);
+        ATF_REQUIRE_MSG(maxrss < ru.ru_maxrss,
+            "maxrss: %ld, ru.ru_maxrss: %ld", maxrss, ru.ru_maxrss);
+}
+
+ATF_TC(getrusage_msgsnd);
+ATF_TC_HEAD(getrusage_msgsnd, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test send growing with getrusage(2)");
+}
+
+ATF_TC_BODY(getrusage_msgsnd, tc)
+{
+        struct rusage ru;
+        long msgsnd;
+        int s, i;
+        struct sockaddr_in sin;
+
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0);
+        msgsnd = ru.ru_msgsnd;
+
+        s = socket(AF_INET, SOCK_DGRAM, 0);
+        ATF_REQUIRE(s >= 0);
+        memset(&sin, 0, sizeof(sin));
+        sin.sin_family = AF_INET;
+        sin.sin_len = sizeof(sin);
+        sin.sin_addr.s_addr = ntohl(INADDR_LOOPBACK);
+        sin.sin_port = htons(3333);
+
+        for (i = 0; i < 10; i++)
+                ATF_REQUIRE(sendto(s, &sin, sizeof(sin), 0, (void *)&sin,
+                        (socklen_t)sizeof(sin)) != -1);
+
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0);
+        ATF_REQUIRE(msgsnd + 10 == ru.ru_msgsnd);
+        close(s);
+}
+
+ATF_TC(getrusage_utime_back);
+ATF_TC_HEAD(getrusage_utime_back, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test bogus values from getrusage(2)");
+}
+
+ATF_TC_BODY(getrusage_utime_back, tc)
+{
+        struct rusage ru1, ru2;
+        size_t i;
+
+        /*
+         * Test that two consecutive calls are sane.
+         */
+
+        for (i = 0; i < maxiter; i++) {
+
+                (void)memset(&ru1, 0, sizeof(struct rusage));
+                (void)memset(&ru2, 0, sizeof(struct rusage));
+
+                work();
+
+                ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru1) == 0);
+
+                work();
+
+                ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru2) == 0);
+
+                if (timercmp(&ru2.ru_utime, &ru1.ru_utime, <) != 0)
+                        atf_tc_fail("user time went backwards");
+        }
+}
+
+ATF_TC(getrusage_utime_zero);
+ATF_TC_HEAD(getrusage_utime_zero, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test zero utime from getrusage(2)");
+}
+
+ATF_TC_BODY(getrusage_utime_zero, tc)
+{
+        struct rusage ru;
+        size_t i;
+
+        /*
+         * Test that getrusage(2) does not return
+         * zero user time for the calling process.
+         */
+
+        for (i = 0; i < maxiter; i++) {
+                work();
+        }
+
+        (void)memset(&ru, 0, sizeof(struct rusage));
+
+        ATF_REQUIRE(getrusage(RUSAGE_SELF, &ru) == 0);
+
+        if (ru.ru_utime.tv_sec == 0 && ru.ru_utime.tv_usec == 0)
+                atf_tc_fail("zero user time from getrusage(2)");
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, getrusage_err);
+        ATF_TP_ADD_TC(tp, getrusage_sig);
+        ATF_TP_ADD_TC(tp, getrusage_maxrss);
+        ATF_TP_ADD_TC(tp, getrusage_msgsnd);
+        ATF_TP_ADD_TC(tp, getrusage_utime_back);
+        ATF_TP_ADD_TC(tp, getrusage_utime_zero);
+
+        return atf_no_error();
+}