diff --git a/libc-test/src/functional/atexit_dlclose.c b/libc-test/src/functional/atexit_dlclose.c
index 726cdbe42a4c90746d951e5460fedb8ca90b7045..cece33c3001e989627932f75c161282c64de5a62 100644
--- a/libc-test/src/functional/atexit_dlclose.c
+++ b/libc-test/src/functional/atexit_dlclose.c
@@ -24,9 +24,10 @@
 
 typedef void (* ATEXIT_CB)();
 
-#define TEST_DSO "libatexit_dlclose_dso.so"
+#define TEST_DSO "/data/tests/libc-test/src/libatexit_dlclose_dso.so"
 #define ATEXIT_CB_NAME "atexit_cb"
 #define ATEXIT_WATCHPOINT_NAME "g_watchpoint"
+#define LIBATEXIT_DLCLOSE_DSO_ABSOLUTE_PATH "/data/tests/libc-test/src/libatexit_dlclose_dso.so"
 
 int fork_main(char *exe)
 {
@@ -43,7 +44,7 @@ int fork_main(char *exe)
 		return 1;
 	}
 
-	handler = dlopen(buf, RTLD_LAZY|RTLD_LOCAL);
+	handler = dlopen(LIBATEXIT_DLCLOSE_DSO_ABSOLUTE_PATH, RTLD_LAZY|RTLD_LOCAL);
 	if(!handler) {
 		t_error("dlopen %s failed: %s\n", buf, dlerror());
 		return 2;
diff --git a/libc-test/src/functionalext/common/sigchain_util.h b/libc-test/src/functionalext/common/sigchain_util.h
index 5fedc0ff222fccf99f092fd700711611942a0ed8..68dc83435f0b69a6fdf97c08098947bd99169923 100644
--- a/libc-test/src/functionalext/common/sigchain_util.h
+++ b/libc-test/src/functionalext/common/sigchain_util.h
@@ -45,4 +45,19 @@
 #define SIGCHAIN_SIGNAL_56 56
 #define SIGCHAIN_SIGNAL_64 64
 
-extern bool get_sigchain_mask_enable();
\ No newline at end of file
+bool get_sigchain_mask_enable()
+{
+#ifdef OHOS_ENABLE_PARAMETER
+    static CachedHandle sigchain_procmask_handle = NULL;
+    if (sigchain_procmask_handle == NULL) {
+        sigchain_procmask_handle = CachedParameterCreate(param_name, "false");
+    }
+    char *param_value = CachedParameterGet(sigchain_procmask_handle);
+    if (param_value != NULL) {
+        if (strcmp(param_value, "true") == 0) {
+            return true;
+        }
+    }
+#endif
+    return false;
+}
\ No newline at end of file
diff --git a/libc-test/src/functionalext/sigchain/BUILD.gn b/libc-test/src/functionalext/sigchain/BUILD.gn
index bc9ff895cb7d229cb2957c64ab6e83a75398e283..9037ec9fb813aec17b55baa87b1282c84178a970 100644
--- a/libc-test/src/functionalext/sigchain/BUILD.gn
+++ b/libc-test/src/functionalext/sigchain/BUILD.gn
@@ -16,6 +16,7 @@ import("test_src_functionalext_sigchain.gni")
 foreach(s, functionalext_sigchain_list) {
   test_unittest(s) {
     target_dir = "functionalext/sigchain"
+    musl_unit_test_flag = true
   }
 }
 
diff --git a/libc-test/src/functionalext/supplement/stat/mknod.c b/libc-test/src/functionalext/supplement/stat/mknod.c
index 0dff1c6e75b4a385ba90cf1f130718d84ac0aed7..a4895cca36a07d2c72769c5c37d43a146c08d5a5 100755
--- a/libc-test/src/functionalext/supplement/stat/mknod.c
+++ b/libc-test/src/functionalext/supplement/stat/mknod.c
@@ -13,6 +13,7 @@
  * limitations under the License.
  */
 
+#include <errno.h>
 #include <sys/stat.h>
 #include "functionalext.h"
 #include "filepath_util.h"
@@ -26,8 +27,7 @@
  */
 void mknod_0100(void)
 {
-    char pathname[PATH_MAX] = {0};
-    FILE_ABSOLUTE_PATH("mknod", pathname);
+    char pathname[PATH_MAX] = "/dev/zero";
     int ret = mknod(pathname, TEST_MODE, 0);
     EXPECT_EQ("mknod_0100", ret, ERREXPECT);
 }
diff --git a/libc-test/src/functionalext/supplement/time/timer_create.c b/libc-test/src/functionalext/supplement/time/timer_create.c
index 1aca66bf0eaf330a45eee9c03d3cc21de958dd38..d859a7cf0c750f9a775c0e863d26eaf1628b9154 100644
--- a/libc-test/src/functionalext/supplement/time/timer_create.c
+++ b/libc-test/src/functionalext/supplement/time/timer_create.c
@@ -19,7 +19,7 @@
 #include <unistd.h>
 
 #include "test.h"
-
+#define SIGNUM 40
 static int count = 0;
 
 void handler(int sig)
@@ -40,10 +40,10 @@ void timer_create_0100(void)
     timer_t timerid;
 
     sev.sigev_notify = SIGEV_SIGNAL;
-    sev.sigev_signo = SIGRTMIN;
+    sev.sigev_signo = SIGNUM;
     sev.sigev_value.sival_ptr = &timerid;
 
-    signal(SIGRTMIN, handler);
+    signal(SIGNUM, handler);
 
     int result = timer_create(CLOCK_REALTIME, &sev, &timerid);
     if (result != 0) {
diff --git a/libc-test/src/functionalext/supplement/time/timer_getoverrun.c b/libc-test/src/functionalext/supplement/time/timer_getoverrun.c
index c2e79cfca834e250282152f76a340667764543e0..722948a74fc6c9e20af4e92e8e7c66c181f5a425 100644
--- a/libc-test/src/functionalext/supplement/time/timer_getoverrun.c
+++ b/libc-test/src/functionalext/supplement/time/timer_getoverrun.c
@@ -20,7 +20,7 @@
 #include <unistd.h>
 
 #include "test.h"
-
+#define SIGNUM 40
 static int count = 0;
 static timer_t timerid;
 
@@ -45,10 +45,10 @@ void timer_getoverrun_0100(void)
     struct sigevent sev;
 
     sev.sigev_notify = SIGEV_SIGNAL;
-    sev.sigev_signo = SIGRTMIN;
+    sev.sigev_signo = SIGNUM;
     sev.sigev_value.sival_ptr = &timerid;
 
-    signal(SIGRTMIN, handler);
+    signal(SIGNUM, handler);
 
     int result = timer_create(CLOCK_REALTIME, &sev, &timerid);
     if (result != 0) {
diff --git a/libc-test/src/functionalext/supplement/time/timer_settime.c b/libc-test/src/functionalext/supplement/time/timer_settime.c
index e79caece52e134f4553f861379745058ba8e5b1e..95a516de6b83d39e7d2345fcebb0d8e4dfca1362 100644
--- a/libc-test/src/functionalext/supplement/time/timer_settime.c
+++ b/libc-test/src/functionalext/supplement/time/timer_settime.c
@@ -20,7 +20,7 @@
 #include <unistd.h>
 
 #include "test.h"
-
+#define SIGNUM 40
 static int count = 0;
 
 extern int __timer_settime64(timer_t, int, const struct itimerspec *__restrict, struct itimerspec *__restrict);
@@ -48,10 +48,10 @@ void timer_settime_0100(void)
     timer_t timerid;
 
     sev.sigev_notify = SIGEV_SIGNAL;
-    sev.sigev_signo = SIGRTMIN;
+    sev.sigev_signo = SIGNUM;
     sev.sigev_value.sival_ptr = &timerid;
 
-    signal(SIGRTMIN, handler);
+    signal(SIGNUM, handler);
 
     int result = timer_create(CLOCK_REALTIME, &sev, &timerid);
     if (result != 0) {
@@ -102,10 +102,10 @@ void timer_settime64_0100(void)
     timer_t timerid;
 
     sev.sigev_notify = SIGEV_SIGNAL;
-    sev.sigev_signo = SIGRTMIN;
+    sev.sigev_signo = SIGNUM;
     sev.sigev_value.sival_ptr = &timerid;
 
-    signal(SIGRTMIN, handler);
+    signal(SIGNUM, handler);
 
     int result = timer_create(CLOCK_REALTIME, &sev, &timerid);
     if (result != 0) {
diff --git a/libc-test/src/functionalext/trace/trace_marker.c b/libc-test/src/functionalext/trace/trace_marker.c
index 7934efd3068e4f5f72dc17b3bd6f9193e1e20dbb..9336c78bdf3e7b63c6be22038b498ef76232ab88 100644
--- a/libc-test/src/functionalext/trace/trace_marker.c
+++ b/libc-test/src/functionalext/trace/trace_marker.c
@@ -1283,6 +1283,7 @@ TEST_FUN G_Fun_Array[] = {
 
 int main(void)
 {
+    trace_marker_reset();
     int num = sizeof(G_Fun_Array) / sizeof(TEST_FUN);
     for (int pos = 0; pos < num; ++pos) {
         G_Fun_Array[pos]();
diff --git a/libc-test/src/regression/raise-race.c b/libc-test/src/regression/raise-race.c
index 6b4c4ef1c7c54b96a5c767fc91d22a7690385415..e0f4d2b6c9da6e0db959b0a5e2bc36a90967e89e 100644
--- a/libc-test/src/regression/raise-race.c
+++ b/libc-test/src/regression/raise-race.c
@@ -8,7 +8,7 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include "test.h"
-
+#define SIGNUM 40
 static volatile int c0;
 static volatile int c1;
 static volatile int child;
@@ -32,7 +32,7 @@ static void *start(void *arg)
 	int i,r,s;
 
 	for (i = 0; i < 1000; i++) {
-		r = raise(SIGRTMIN);
+		r = raise(SIGNUM);
 		if (r)
 			t_error("raise failed: %s\n", strerror(errno));
 	}
@@ -59,16 +59,16 @@ int main(void)
 	void *p;
 	int r, i, s;
 
-	if (signal(SIGRTMIN, handler0) == SIG_ERR)
+	if (signal(SIGNUM, handler0) == SIG_ERR)
 		t_error("registering signal handler failed: %s\n", strerror(errno));
-	if (signal(SIGRTMIN+1, handler1) == SIG_ERR)
+	if (signal(SIGNUM+1, handler1) == SIG_ERR)
 		t_error("registering signal handler failed: %s\n", strerror(errno));
 
 	r = pthread_create(&t, 0, start, 0);
 	if (r)
 		t_error("pthread_create failed: %s\n", strerror(r));
 	for (i = 0; i < 100; i++) {
-		r = pthread_kill(t, SIGRTMIN+1);
+		r = pthread_kill(t, SIGNUM+1);
 		if (r)
 			t_error("phread_kill failed: %s\n", strerror(r));
 	}
diff --git a/libc-test/test_template.gni b/libc-test/test_template.gni
index 2b3b0aec062e4281ec178251b83fe2fe944c2bce..18b8c1aac3418fd84e92787b4ee36e7f20ea60ec 100644
--- a/libc-test/test_template.gni
+++ b/libc-test/test_template.gni
@@ -28,7 +28,9 @@ template("test_unittest") {
 
   target_name = invoker.target_name
   target_dir = invoker.target_dir
-
+  if (defined(invoker.musl_unit_test_flag)) {
+    musl_unit_test_flag = invoker.musl_unit_test_flag
+  }
   target("ohos_executable", "${target_name}") {
     subsystem_name = "musl"
     part_name = "libc-test"