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();
+}