diff --git a/components/libc/compilers/armlibc/libc.h b/components/libc/compilers/armlibc/libc.h
index aef0324018cdb8563512a0351399653f1e5c7829..e57897f0a8ba1498b871a38a00a1101763017af2 100644
--- a/components/libc/compilers/armlibc/libc.h
+++ b/components/libc/compilers/armlibc/libc.h
@@ -31,6 +31,7 @@
 int libc_system_init(void);
 
 int libc_stdio_set_console(const char* device_name, int mode);
+int libc_stdio_get_console(void);
 int libc_stdio_read (void *buffer, size_t size);
 int libc_stdio_write(const void *buffer, size_t size);
 
diff --git a/components/libc/compilers/armlibc/stdio.c b/components/libc/compilers/armlibc/stdio.c
index cba51beb186e6b2d58c525e16b1db7fa005b3bb2..d1ac9765686d67508d099455489be2d9d6035d72 100644
--- a/components/libc/compilers/armlibc/stdio.c
+++ b/components/libc/compilers/armlibc/stdio.c
@@ -58,6 +58,11 @@ int libc_stdio_set_console(const char* device_name, int mode)
     return std_fd;
 }
 
+int libc_stdio_get_console(void)
+{
+    return std_fd;
+}
+
 int libc_stdio_read(void *buffer, size_t size)
 {
     return read(std_fd, buffer, size);
diff --git a/components/libc/compilers/dlib/libc.h b/components/libc/compilers/dlib/libc.h
index db571d2ee157e0e5bc38ab0ba0bdf250087864c9..d0a081d538a184f4f886f2e2629499013f269b60 100644
--- a/components/libc/compilers/dlib/libc.h
+++ b/components/libc/compilers/dlib/libc.h
@@ -32,6 +32,7 @@
 int libc_system_init(void);
 
 int libc_stdio_set_console(const char* device_name, int mode);
+int libc_stdio_get_console(void);
 int libc_stdio_read (void *buffer, size_t size);
 int libc_stdio_write(const void *buffer, size_t size);
 
diff --git a/components/libc/compilers/dlib/stdio.c b/components/libc/compilers/dlib/stdio.c
index 24e421f2b30f78d93e176a3b5e28800f3cd9f6be..12c1081d8bc8ee4b06e54fca630cddb36c66c198 100644
--- a/components/libc/compilers/dlib/stdio.c
+++ b/components/libc/compilers/dlib/stdio.c
@@ -58,6 +58,10 @@ int libc_stdio_set_console(const char* device_name, int mode)
     return std_fd;
 }
 
+int libc_stdio_get_console(void) {
+    return std_fd;
+}
+
 int libc_stdio_read(void *buffer, size_t size)
 {
     return read(std_fd, buffer, size);
diff --git a/components/libc/compilers/newlib/libc.h b/components/libc/compilers/newlib/libc.h
index 7cab52a11f858c711c0522102286203e0ae15332..d077de96560cca9be6217aa8e0d6934eef9887bc 100644
--- a/components/libc/compilers/newlib/libc.h
+++ b/components/libc/compilers/newlib/libc.h
@@ -38,6 +38,7 @@
 
 int libc_system_init(void);
 int libc_stdio_set_console(const char* device_name, int mode);
+int libc_stdio_get_console(void);
 
 /* some time related function */
 int libc_set_time(const struct timespec *time);
diff --git a/components/libc/compilers/newlib/stdio.c b/components/libc/compilers/newlib/stdio.c
index 276e68050c273483facf4f1393ed0fd652cd2d23..f28383818d771dd386fbedf8febe7be4c37a6348 100644
--- a/components/libc/compilers/newlib/stdio.c
+++ b/components/libc/compilers/newlib/stdio.c
@@ -83,3 +83,10 @@ int libc_stdio_set_console(const char* device_name, int mode)
 
     return fileno(std_console);
 }
+
+int libc_stdio_get_console(void) {
+    if (std_console)
+        return fileno(std_console);
+    else
+        return -1;
+}