Support kernel semaphore.

Ubiquitous/XiZi_AIoT/services/app/Makefile

@@ -33,9 +33,9 @@ INC_DIR = 	-I$(KERNEL_ROOT)/services/shell/letter-shell \
 			-I$(KERNEL_ROOT)/services/app 
 
 ifeq ($(BOARD), imx6q-sabrelite)
-all: init test_fault simple_client simple_server shell fs_server semaphore_server test_ipc_null test_thread test_irq_hdlr test_irq_block test_irq_send eth_driver epit_server readme.txt | bin
+all: init test_fault simple_client simple_server shell fs_server semaphore_server test_semaphore test_ipc_null test_thread test_irq_hdlr test_irq_block test_irq_send eth_driver epit_server readme.txt | bin
 else 
-all: init test_fault simple_client simple_server shell fs_server readme.txt | bin
+all: init test_fault simple_client simple_server shell fs_server test_ipc_null test_thread test_semaphore readme.txt | bin
 endif
 	../tools/mkfs/mkfs ./fs.img $^
 	@mv $(filter-out readme.txt, $^) bin
@@ -59,6 +59,10 @@ epit_server: timer.o epit.o ccm_pll.o usyscall.o arch_usyscall.o libserial.o pri
 	@${objdump} -S $@ > $@.asm
 endif
 
+test_semaphore: test_semaphore.o libserial.o printf.o usyscall.o arch_usyscall.o
+	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
+	@${objdump} -S $@ > $@.asm
+
 test_ipc_null: test_ipc_null.o libserial.o printf.o usyscall.o arch_usyscall.o libipc.o session.o
 	@${ld} ${user_ldflags} -e main -o $@ $^ ${board_specs}
 	@${objdump} -S $@ > $@.asm

Ubiquitous/XiZi_AIoT/services/app/test_fault.c

@@ -18,7 +18,6 @@
 #include "libserial.h"
 #include "usyscall.h"
 
-#define BLOCK_SIZE 256
 int main(int argc, char* argv[])
 {
     printf("Test memry error %s.\n", 0x50000000);

Ubiquitous/XiZi_AIoT/services/app/test_semaphore.c

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2020 AIIT XUOS Lab
+ * XiUOS is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *        http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+#include <stdint.h>
+
+#include "libserial.h"
+#include "usyscall.h"
+
+enum {
+    NR_THREADS = 16,
+    LOOP_TIMES = 0x1000000,
+};
+
+static int sem_id = -1;
+static uint32_t sum = 0;
+static int nr_thds = NR_THREADS;
+
+int do_calculation(int argc, char** argv)
+{
+    for (uint32_t i = 0; i < LOOP_TIMES; i++) {
+        sum++;
+    }
+
+    printf("test semaphore thd signal.\n");
+    semaphore_signal(sem_id);
+
+    char* params[] = { "do_cal", NULL };
+    if (nr_thds != 0) {
+        int tid = thread(do_calculation, "test_sem_thd", params);
+        nr_thds--;
+    }
+
+    exit(0);
+    return 0;
+}
+
+int main(int argc, char** argv)
+{
+    printf("Test Semaphore.\n");
+    sem_id = semaphore_new(0);
+    if (sem_id < 0) {
+        printf("new a kernel sem failed.\n");
+        exit(1);
+    }
+
+    sum = 0;
+
+    nr_thds = NR_THREADS;
+    char* params[] = { "do_cal", NULL };
+    if (nr_thds != 0) {
+        int tid = thread(do_calculation, "test_sem_thd", params);
+        nr_thds--;
+    }
+
+    for (int i = 0; i < NR_THREADS; i++) {
+        semaphore_wait(sem_id);
+    }
+
+    printf("test thread sum after %d signal: 0x%x\n", NR_THREADS, sum);
+
+    exit(0);
+    return 0;
+}