Fix Klocwork#137: Non-void function does not return value

Change getTimeStampClks() implementation from assembly to C.

Signed-off-by: Bogdan Pricop <bogdan.pricop@emutex.com>

Author: Bogdan Pricop

cores/arduino/utils.S

@@ -29,7 +29,20 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 #define FREQ_MHZ	((ARCV2_TIMER0_CLOCK_FREQ)/1000000)
 static const uint64_t	 MS_TO_CLKS = (FREQ_MHZ * 1000);
 
-extern uint64_t getTimeStampClks(void);
+static inline __attribute__((always_inline))
+uint64_t getTimeStampClks(void)
+{
+	uint32_t time_stamp;
+	int key = interrupt_lock();
+	uint64_t ret = timer0_overflows;
+	time_stamp = aux_reg_read(ARC_V2_TMR0_COUNT);
+	if (aux_reg_read(ARC_V2_TMR0_CONTROL) & (0x01 << 3)) {
+		time_stamp = aux_reg_read(ARC_V2_TMR0_COUNT);
+		ret++;
+	}
+	interrupt_unlock(key);
+	return ((ret << 32) | time_stamp);
+}
 
 void delay(uint32_t msec)
 {

cores/arduino/wiring.c

@@ -59,9 +59,6 @@ build.usb_manufacturer="Unknown"
 ## Compile c files
 recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.c.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
 
-## Compile S files
-recipe.S.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.c.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"
-
 ## Compile c++ files
 recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.cpp.extra_flags} {build.extra_flags} {includes} "{source_file}" -o "{object_file}"