diff --git a/ldso/linux/dynlink.c b/ldso/linux/dynlink.c
index a0105b6f7f609d0eb3a79fec4fe85b21ea670a86..1d687c63530d2152f966ee27a9c8f12759251e5e 100644
--- a/ldso/linux/dynlink.c
+++ b/ldso/linux/dynlink.c
@@ -4459,6 +4459,7 @@ static int do_dlclose(struct dso *p, bool check_deps_all)
 hidden int __dlclose(void *p)
 {
 	pthread_mutex_lock(&dlclose_lock);
+	setDlcloseLockStatus(gettid());
 	int rc;
 	pthread_rwlock_wrlock(&lock);
 	if (shutting_down) {
@@ -4482,6 +4483,8 @@ hidden int __dlclose(void *p)
 	rc = do_dlclose(p, 0);
 #endif
 	pthread_rwlock_unlock(&lock);
+	setDlcloseLockLastExitTid(gettid());
+	setDlcloseLockStatus(0);
 	pthread_mutex_unlock(&dlclose_lock);
 	return rc;
 }
@@ -4655,6 +4658,7 @@ no_redir:
 int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
 {
 	pthread_mutex_lock(&dlclose_lock);
+	setDlcloseLockStatus(gettid());
 	struct dso *current;
 	struct dl_phdr_info info;
 	int ret = 0;
@@ -4679,6 +4683,8 @@ int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void
 		current = current->next;
 		pthread_rwlock_unlock(&lock);
 	}
+	setDlcloseLockLastExitTid(gettid());
+	setDlcloseLockStatus(0);
 	pthread_mutex_unlock(&dlclose_lock);
 	return ret;
 }
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 671ac61bde11bd3f7e31f9ed49538581467bc900..585eed4bc2a429628075dcf43077e55ae2d0f587 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -343,4 +343,9 @@ extern hidden unsigned __default_guardsize;
 hidden int __thread_clone(int (*func)(void *), int flags, struct pthread *thread, unsigned char *sp);
 #endif
 
+extern hidden pid_t getDlcloseLockStatus();
+extern hidden pid_t getDlcloseLockLastExitTid();
+extern hidden void setDlcloseLockStatus(pid_t);
+extern hidden void setDlcloseLockLastExitTid(pid_t);
+
 #endif
diff --git a/src/sigchain/linux/sigchain.c b/src/sigchain/linux/sigchain.c
index d9dbef8e81edbc3b1d61ad14c061534731d11719..88158581e1bc8da96149bbf29dff8ee15f3ba9e1 100644
--- a/src/sigchain/linux/sigchain.c
+++ b/src/sigchain/linux/sigchain.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -234,7 +234,9 @@ static void signal_chain_handler(int signo, siginfo_t* siginfo, void* ucontext_r
                 "install_new_tls_tl_lock=%{public}d "
                 "set_syscall_hooks_tl_lock=%{public}d "
                 "set_syscall_hooks_linux_tl_lock=%{public}d "
-                "fork_tl_lock=%{public}d ",
+                "fork_tl_lock=%{public}d "
+                "g_dlcloseLockStatus=%{public}d"
+                "g_dlcloseLockLastExitTid=%{public}d",
                 __func__, idx, signo, (unsigned long long)sig_chains[signo - 1].sca_special_actions[idx].sca_sigaction,
                 noreturn, signo, thread_list_lock_status,
                 get_tl_lock_count(), get_tl_lock_waiters(), get_tl_lock_tid_fail(), get_tl_lock_count_tid(),
@@ -251,7 +253,9 @@ static void signal_chain_handler(int signo, siginfo_t* siginfo, void* ucontext_r
                 call_tl_lock_dump->install_new_tls_tl_lock,
                 call_tl_lock_dump->set_syscall_hooks_tl_lock,
                 call_tl_lock_dump->set_syscall_hooks_linux_tl_lock,
-                call_tl_lock_dump->fork_tl_lock);
+                call_tl_lock_dump->fork_tl_lock,
+                getDlcloseLockStatus(),
+                getDlcloseLockLastExitTid());
             if (sig_chains[signo - 1].sca_special_actions[idx].sca_sigaction(signo,
                                                             siginfo, ucontext_raw)) {
                 set_handling_signal(previous_value);
diff --git a/src/thread/linux/pthread_create.c b/src/thread/linux/pthread_create.c
index 60a9321afe2b5cef0f4ecc17dbebb616eafb8177..25af614a708c8c570bff7433e5cf526eb8698f7d 100644
--- a/src/thread/linux/pthread_create.c
+++ b/src/thread/linux/pthread_create.c
@@ -115,6 +115,7 @@ static int thread_list_lock_after_lock = TID_ERROR_INIT;
 static int thread_list_lock_pre_unlock = TID_ERROR_INIT;
 static int thread_list_lock_pthread_exit = TID_ERROR_INIT;
 static int thread_list_lock_tid_overlimit = TID_ERROR_INIT;
+static pid_t g_dlcloseLockStatus = TID_ERROR_0, g_dlcloseLockLastExitTid = TID_ERROR_0;
 
 struct call_tl_lock tl_lock_caller_count = { 0 };
 
@@ -442,6 +443,26 @@ static int start(void *p)
 	return 0;
 }
 
+pid_t getDlcloseLockStatus()
+{
+	return g_dlcloseLockStatus;
+}
+
+pid_t getDlcloseLockLastExitTid()
+{
+	return g_dlcloseLockLastExitTid;
+}
+
+void setDlcloseLockStatus(pid_t value)
+{
+	g_dlcloseLockStatus = value;
+}
+
+void setDlcloseLockLastExitTid(pid_t value)
+{
+	g_dlcloseLockLastExitTid = value;
+}
+
 #ifdef ENABLE_HWASAN
 __attribute__((no_sanitize("hwaddress")))
 #endif