Import the "gerbert" kernel I worked on earlier this year.

It's a lot crappier than I remembered it. It's gonna need a lot of work.

Kernel/StdLib.cpp

@@ -0,0 +1,55 @@
+#include "types.h"
+#include "Assertions.h"
+#include "kmalloc.h"
+
+void memcpy(void *dest, const void *src, DWORD n)
+{
+    BYTE* bdest = (BYTE*)dest;
+    const BYTE* bsrc = (const BYTE*)src;
+    for (; n; --n)
+        *(bdest++) = *(bsrc++);
+}
+
+void strcpy(char* dest, const char *src)
+{
+    while (*src)
+        *(dest++) = *(src++);
+}
+
+void* memset(void* dest, BYTE c, DWORD n)
+{
+    BYTE *bdest = (BYTE *)dest;
+    for (; n; --n)
+        *(bdest++) = c;
+    return dest;
+}
+
+DWORD strlen(const char* str)
+{
+    DWORD len = 0;
+    while (*(str++))
+        ++len;
+    return len;
+}
+
+int strcmp(const char *s1, const char *s2)
+{
+    for (; *s1 == *s2; ++s1, ++s2) {
+        if (*s1 == 0)
+            return 0;
+    }
+    return *(const BYTE*)s1 < *(const BYTE*)s2 ? -1 : 1;
+}
+
+char* strdup(const char *str)
+{
+    DWORD len = strlen(str);
+    char *s = (char*)kmalloc(len);
+    memcpy(s, str, len);
+    return s;
+}
+
+extern "C" void __cxa_pure_virtual()
+{
+    ASSERT_NOT_REACHED();
+}