kernel: move do_padconf and add a test case

padconf is specific to arm, so it's being moved to kernel/arch/earm.

Add a test case to ensure the proper error is returned on non-ARM
systems.

Change-Id: I07ebbe64825d59bc0ef9c818d3d54891dafb4419

kernel/arch/earm/Makefile.inc

@@ -63,7 +63,7 @@ ORIG_UNPAGED_OBJS += ${unpaged_obj}
 
 CLEANFILES+= ${ORIG_UNPAGED_OBJS}
 
-SRCS+=	mpx.S arch_clock.c arch_do_vmctl.c arch_system.c \
+SRCS+=	mpx.S arch_clock.c arch_do_vmctl.c arch_system.c do_padconf.c \
 	omap_serial.c omap_timer.c omap_padconf.c omap_intr.c omap_rtc.c \
 	omap_reset.c exception.c klib.S memory.c \
 	protect.c direct_tty_utils.c arch_reset.c \

kernel/system/Makefile.inc

@@ -40,11 +40,6 @@ SRCS+= 	\
 	do_schedctl.c \
 	do_statectl.c
 
-.if ${MACHINE_ARCH} == "earm"
-SRCS+=	\
-	do_padconf.c
-.endif
-
 .if ${MACHINE_ARCH} == "i386"
 SRCS+=  \
 	do_devio.c \

test/kernel/run

@@ -1,5 +1,5 @@
 #!/bin/sh
 
-tests="sys_vumap"
+tests="sys_padconf sys_vumap"
 
 for i in $tests; do (cd $i && ./run); done

test/kernel/sys_padconf/Makefile

@@ -0,0 +1,16 @@
+# Makefile for the sys_padconf test.
+
+.include <bsd.own.mk>
+
+PROG=	padconftest
+SRCS=	padconftest.c
+
+DPADD+=	${LIBSYS}
+LDADD+=	-lsys
+
+MAN=
+
+BINDIR?= /usr/tests/minix-posix
+
+.include "${NETBSDSRCDIR}/drivers/Makefile.inc"
+.include <minix.service.mk>

test/kernel/sys_padconf/padconftest.c

@@ -0,0 +1,59 @@
+/* Test for sys_padconf() */
+#include <errno.h>
+#include <stdio.h>
+#include <minix/com.h>
+#include <minix/syslib.h>
+#include <minix/padconf.h>
+#include <minix/drivers.h>
+#include <assert.h>
+
+static unsigned int failures = 0;
+
+/*
+ * padconf is only supported on ARM. On other systems sys_padconf() should
+ * return -EBADREQUEST.
+ */
+static void test_badrequest(void)
+{
+#if !defined(__arm__)
+	int r;
+
+	r = sys_padconf(0xffffffff, 0xffffffff, 0xffffffff);
+	if (r != -EBADREQUEST) {
+		printf("Expected r=%d | Got r=%d\n", -EBADREQUEST, r);
+		failures++;
+	}
+#endif
+	return;
+}
+
+static void do_tests(void)
+{
+	test_badrequest();
+}
+
+static int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info))
+{
+	do_tests();
+
+	/* The returned code will determine the outcome of the RS call, and
+	 * thus the entire test. The actual error code does not matter.
+	 */
+	return (failures) ? EINVAL : 0;
+}
+
+static void sef_local_startup(void)
+{
+	sef_setcb_init_fresh(sef_cb_init_fresh);
+
+	sef_startup();
+}
+
+int main(int argc, char **argv)
+{
+	env_setargs(argc, argv);
+
+	sef_local_startup();
+
+	return 0;
+}

test/kernel/sys_padconf/run

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+make >/dev/null
+
+echo -n "Kernel test (sys_padconf): "
+service up `pwd`/padconftest -config system.conf -label padconftest -script /etc/rs.single
+r=$?
+
+if [ $r -ne 0 ]; then
+  echo "failure"
+  exit 1
+fi
+
+echo "ok"

test/kernel/sys_padconf/system.conf

@@ -0,0 +1,4 @@
+service padconftest {
+	system PADCONF;
+};
+