add onnx pack

components/ai/onnx/operator_int/tencentos_libc.c

@@ -0,0 +1,26 @@
+#include "tos_k.h"
+
+#ifdef __CC_ARM
+/* avoid the heap and heap-using library functions supplied by arm */
+#pragma import(__use_no_heap)
+#endif
+
+void *malloc(size_t n)
+{
+    return tos_mmheap_alloc(n);
+}
+
+void *realloc(void *rmem, size_t newsize)
+{
+    return tos_mmheap_realloc(rmem, newsize);
+}
+
+void *calloc(size_t nelem, size_t elsize)
+{
+    return tos_mmheap_calloc(nelem, elsize);
+}
+
+void free(void *rmem)
+{
+    tos_mmheap_free(rmem);
+}