Import dietlibc 0.22 + other fixes for AMD64

1 files changed, 14 insertions, 0 deletions

diff --git a/mdk-stage1/dietlibc/lib/memmem.c b/mdk-stage1/dietlibc/lib/memmem.c
new file mode 100644
index 000000000..5c88a29e7
--- /dev/null
+++ b/mdk-stage1/dietlibc/lib/memmem.c
@@ -0,0 +1,14 @@
+#define _GNU_SOURCE 23
+#include <sys/types.h>
+#include <string.h>
+
+void *memmem(const void* haystack, size_t hl, const void* needle, size_t nl) {
+  int i;
+  if (nl>hl) return 0;
+  for (i=hl-nl+1; i; --i) {
+    if (!memcmp(haystack,needle,nl))
+      return (char*)haystack;
+    ++haystack;
+  }
+  return 0;
+}