diff --git a/kal/libc/Kconfig b/kal/libc/Kconfig
index 2b171549..34f3304e 100644
--- a/kal/libc/Kconfig
+++ b/kal/libc/Kconfig
@@ -43,6 +43,7 @@ rsource "newlib/Kconfig"
 
 config LIBC_ICCARM
     bool "iar libc"
+    depends on COMPILER_ICCARM
 rsource "iccarm/Kconfig"
 
 endchoice
diff --git a/kal/libc/iccarm/Kconfig b/kal/libc/iccarm/Kconfig
index 196d88ac..aa2790dc 100644
--- a/kal/libc/iccarm/Kconfig
+++ b/kal/libc/iccarm/Kconfig
@@ -35,4 +35,10 @@ config LIBC_ICCARM_FS
     help
         This enables POSIX style file system related APIs.
 
+config LIBC_ICCARM_MALLOC
+    bool "Enable POSIX malloc/free API support"
+    default y
+    help
+        This enables POSIX malloc/free related APIs.
+
 endif # LIBC_ICCARM
diff --git a/kal/libc/newlib/Kconfig b/kal/libc/newlib/Kconfig
index 3f3e92f7..0c38db35 100644
--- a/kal/libc/newlib/Kconfig
+++ b/kal/libc/newlib/Kconfig
@@ -36,4 +36,10 @@ config LIBC_NEWLIB_FS
     help
         This enables POSIX style file system related APIs.
 
+config LIBC_NEWLIB_MALLOC
+    bool "Enable POSIX malloc/free API support"
+    default y
+    help
+        This enables POSIX malloc/free related APIs.
+
 endif # LIBC_NEWLIB
diff --git a/kal/libc/newlib/porting/src/malloc.c b/kal/libc/newlib/porting/src/malloc.c
index ec8ef278..8e840d15 100644
--- a/kal/libc/newlib/porting/src/malloc.c
+++ b/kal/libc/newlib/porting/src/malloc.c
@@ -34,6 +34,7 @@
 #include "los_memory.h"
 #include <malloc.h>
 
+#ifdef LOSCFG_LIBC_NEWLIB_MALLOC
 void *zalloc(size_t size)
 {
     void *ptr = NULL;
@@ -111,3 +112,4 @@ void *__wrap__calloc_r(struct _reent *reent, size_t nitems, size_t size)
     }
     return ptr;
 }
+#endif