--- /dev/null
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "tests.h"
+#include <asm/unistd.h>
+
+#ifdef __NR_ustat
+
+# include <stdio.h>
+# include <sys/stat.h>
+# include <sys/sysmacros.h>
+# include <unistd.h>
+# ifdef HAVE_USTAT_H
+# include <ustat.h>
+# endif
+
+int
+main(void)
+{
+ const kernel_ulong_t magic = (kernel_ulong_t) 0xfacefeedffffffff;
+ unsigned long long buf[4];
+ unsigned int dev;
+ long rc;
+
+# ifdef HAVE_USTAT_H
+ struct ustat *const ust = tail_alloc(sizeof(*ust));
+ struct stat st;
+ if (stat(".", &st))
+ perror_msg_and_fail("stat");
+
+ dev = (unsigned int) st.st_dev;
+ rc = syscall(__NR_ustat, dev, ust);
+ if (rc)
+ printf("ustat(makedev(%u, %u), %p) = %s\n",
+ major(dev), minor(dev), ust, sprintrc(rc));
+ else
+ printf("ustat(makedev(%u, %u)"
+ ", {f_tfree=%llu, f_tinode=%llu}) = 0\n",
+ major(dev), minor(dev),
+ zero_extend_signed_to_ull(ust->f_tfree),
+ zero_extend_signed_to_ull(ust->f_tinode));
+# endif /* HAVE_USTAT_H */
+
+ dev = (unsigned int) magic;
+ rc = syscall(__NR_ustat, magic, 0);
+ printf("ustat(makedev(%u, %u), NULL) = %s\n",
+ major(dev), minor(dev), sprintrc(rc));
+
+ rc = syscall(__NR_ustat, magic, buf);
+ printf("ustat(makedev(%u, %u), %p) = %s\n",
+ major(dev), minor(dev), buf, sprintrc(rc));
+
+ puts("+++ exited with 0 +++");
+ return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_ustat")
+
+#endif
--- /dev/null
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "defs.h"
+#ifdef HAVE_USTAT_H
+# include DEF_MPERS_TYPE(struct_ustat)
+# include <ustat.h>
+typedef struct ustat struct_ustat;
+#endif /* HAVE_USTAT_H */
+
+#include MPERS_DEFS
+
+SYS_FUNC(ustat)
+{
+ if (entering(tcp))
+ print_dev_t((unsigned int) tcp->u_arg[0]);
+ else {
+ tprints(", ");
+#ifdef HAVE_USTAT_H
+ struct_ustat ust;
+
+ if (!umove_or_printaddr(tcp, tcp->u_arg[1], &ust))
+ tprintf("{f_tfree=%llu, f_tinode=%llu}",
+ zero_extend_signed_to_ull(ust.f_tfree),
+ zero_extend_signed_to_ull(ust.f_tinode));
+#else /* !HAVE_USTAT_H */
+ printaddr(tcp->u_arg[1]);
+#endif /* HAVE_USTAT_H */
+ }
+
+ return 0;
+}
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