[libc][newlib] 对syscall中malloc相关桩函数做出编译调整

1 files changed, 52 insertions, 1 deletions

diff --git a/components/libc/compilers/newlib/minilib.c b/components/libc/compilers/newlib/minilib.c
index 2d07eabe5a..92877bd6c3 100644
--- a/components/libc/compilers/newlib/minilib.c
+++ b/components/libc/compilers/newlib/minilib.c
@@ -11,8 +11,59 @@
 #include <reent.h>
 #include <rtthread.h>
 
-void * _sbrk_r(struct _reent *ptr, ptrdiff_t incr)
+#ifdef RT_USING_HEAP /* Memory routine */
+void *
+_malloc_r (struct _reent *ptr, size_t size)
+{
+    void* result;
+
+    result = (void*)rt_malloc (size);
+    if (result == RT_NULL)
+    {
+        ptr->_errno = ENOMEM;
+    }
+
+    return result;
+}
+
+void *
+_realloc_r (struct _reent *ptr, void *old, size_t newlen)
+{
+    void* result;
+
+    result = (void*)rt_realloc (old, newlen);
+    if (result == RT_NULL)
+    {
+        ptr->_errno = ENOMEM;
+    }
+
+    return result;
+}
+
+void *_calloc_r (struct _reent *ptr, size_t size, size_t len)
+{
+    void* result;
+
+    result = (void*)rt_calloc (size, len);
+    if (result == RT_NULL)
+    {
+        ptr->_errno = ENOMEM;
+    }
+
+    return result;
+}
+
+void
+_free_r (struct _reent *ptr, void *addr)
+{
+    rt_free (addr);
+}
+
+#else
+void *
+_sbrk_r(struct _reent *ptr, ptrdiff_t incr)
 {
     /* no use this routine to get memory */
     return RT_NULL;
 }
+#endif /*RT_USING_HEAP*/