1 files changed, 104 insertions, 0 deletions
diff --git a/kernel/src/utils/cxx/cxx_stuff.cpp b/kernel/src/utils/cxx/cxx_stuff.cpp
new file mode 100644
index 0000000..c12546a
--- /dev/null
+++ b/kernel/src/utils/cxx/cxx_stuff.cpp
@@ -0,0 +1,104 @@
+#include <cstdint>
+
+extern "C" {
+
+void *memcpy(void *__restrict dest, const void *__restrict src, std::size_t n) {
+    std::uint8_t *__restrict pdest = static_cast<std::uint8_t *__restrict>(dest);
+    const std::uint8_t *__restrict psrc = static_cast<const std::uint8_t *__restrict>(src);
+
+    for (std::size_t i = 0; i < n; i++) {
+        pdest[i] = psrc[i];
+    }
+
+    return dest;
+}
+
+void *memset(void *s, int c, std::size_t n) {
+    std::uint8_t *p = static_cast<std::uint8_t *>(s);
+
+    for (std::size_t i = 0; i < n; i++) {
+        p[i] = static_cast<uint8_t>(c);
+    }
+
+    return s;
+}
+
+void *memmove(void *dest, const void *src, std::size_t n) {
+    std::uint8_t *pdest = static_cast<std::uint8_t *>(dest);
+    const std::uint8_t *psrc = static_cast<const std::uint8_t *>(src);
+
+    if (reinterpret_cast<std::uintptr_t>(src) > reinterpret_cast<std::uintptr_t>(dest)) {
+        for (std::size_t i = 0; i < n; i++) {
+            pdest[i] = psrc[i];
+        }
+    } else if (reinterpret_cast<std::uintptr_t>(src) < reinterpret_cast<std::uintptr_t>(dest)) {
+        for (std::size_t i = n; i > 0; i--) {
+            pdest[i-1] = psrc[i-1];
+        }
+    }
+
+    return dest;
+}
+
+int memcmp(const void *s1, const void *s2, std::size_t n) {
+    const std::uint8_t *p1 = static_cast<const std::uint8_t *>(s1);
+    const std::uint8_t *p2 = static_cast<const std::uint8_t *>(s2);
+
+    for (std::size_t i = 0; i < n; i++) {
+        if (p1[i] != p2[i]) {
+            return p1[i] < p2[i] ? -1 : 1;
+        }
+    }
+
+    return 0;
+}
+
+}
+
+#include <generic/arch.hpp>
+
+extern "C" {
+    int __cxa_atexit(void (*)(void *), void *, void *) { return 0; }
+    void __cxa_pure_virtual() { arch::hcf(); }
+    void *__dso_handle;
+}
+
+#include <generic/heap.hpp>
+
+typedef unsigned long size_t;
+
+void *operator new(size_t size)
+{
+    void* p = kheap::malloc(size);
+    memset(p,0,size);
+    return p;
+}
+
+void *operator new[](size_t size)
+{
+    void* p = kheap::malloc(size);
+    memset(p,0,size);
+    return p;
+}
+
+void operator delete(void *p)
+{
+    kheap::free(p);
+}
+
+void operator delete[](void *p)
+{
+    kheap::free(p);
+}
+
+void operator delete(void *p, size_t size)
+{
+    (void)size;
+    kheap::free(p);
+}
+
+void operator delete[](void *p, size_t size)
+{
+    (void)size;
+    kheap::free(p);
+}
+\ No newline at end of file