[kvm-unit-tests PATCH v3 2/7] s390x: basic self test

[David Hildenbrand <david@redhat.com>]

Test if the general infrastructure is working. The test will fail until
we have proper sclp console output.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 s390x/Makefile      |  2 ++
 s390x/selftest.c    | 41 +++++++++++++++++++++++++++++++++++++++++
 s390x/unittests.cfg |  5 +++++
 3 files changed, 48 insertions(+)
 create mode 100644 s390x/selftest.c

diff --git a/s390x/Makefile b/s390x/Makefile
index 575956b..d468029 100644
--- a/s390x/Makefile
+++ b/s390x/Makefile
@@ -1,3 +1,5 @@
+tests = $(TEST_DIR)/selftest.elf
+
 all: directories test_cases
 
 test_cases: $(tests)
diff --git a/s390x/selftest.c b/s390x/selftest.c
new file mode 100644
index 0000000..4558e47
--- /dev/null
+++ b/s390x/selftest.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2017 Red Hat Inc
+ *
+ * Authors:
+ *  Thomas Huth <thuth@redhat.com>
+ *  David Hildenbrand <david@redhat.com>
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License version 2.
+ */
+#include <libcflat.h>
+#include <util.h>
+
+static void test_fp(void)
+{
+	double a = 3.0;
+	double b = 2.0;
+	double c;
+
+	asm volatile(
+		"	ddb %1, %2\n"
+		"	std %1, %0\n"
+		: "=m" (c) : "f" (a), "m" (b));
+
+	report("3.0/2.0 == 1.5", c == 1.5);
+}
+
+int main(int argc, char**argv)
+{
+	report_prefix_push("selftest");
+
+	report("true", true);
+	report("argc == 3", argc == 3);
+	report("argv[0] == PROGNAME", !strcmp(argv[0], "s390x/selftest.elf"));
+	report("argv[1] == test", !strcmp(argv[1], "test"));
+	report("argv[2] == 123", !strcmp(argv[2], "123"));
+
+	test_fp();
+
+	return report_summary();
+}
diff --git a/s390x/unittests.cfg b/s390x/unittests.cfg
index b1e0b1e..92e01ab 100644
--- a/s390x/unittests.cfg
+++ b/s390x/unittests.cfg
@@ -17,3 +17,8 @@
 #			 # to check separated by a space but each check
 #			 # parameter needs to be of the form <path>=<value>
 ##############################################################################
+
+[selftest-setup]
+file = selftest.elf
+groups = selftest
+extra_params = -append 'test 123'
-- 
2.9.3