Add build system scaffolding and libc headers

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/libc/stdlib/reallocarray.c b/lib/libc/stdlib/reallocarray.c
new file mode 100644
index 00000000..4dd1a6c8
--- /dev/null
+++ b/lib/libc/stdlib/reallocarray.c
@@ -0,0 +1,14 @@
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/errno.h>
+#include <malloc.h>
+
+void *reallocarray(void *ptr, size_t nmemb, size_t size)
+{
+	size_t total = nmemb * size;
+	if (nmemb != 0 && total / nmemb != size) {
+		errno = ENOMEM;
+		return NULL;
+	}
+	return realloc(ptr, total);
+}