From d39920b62e3e0371c5698aae2c316671130b0956 Mon Sep 17 00:00:00 2001
From: Aqua-sama <aqua@iserlohn-fortress.net>
Date: Tue, 16 Mar 2021 12:34:18 +0200
Subject: Switch lto to full

---
 libk/stdlib/memory.cc | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 libk/stdlib/memory.cc

(limited to 'libk/stdlib')

diff --git a/libk/stdlib/memory.cc b/libk/stdlib/memory.cc
new file mode 100644
index 0000000..c197519
--- /dev/null
+++ b/libk/stdlib/memory.cc
@@ -0,0 +1,47 @@
+#include <stdlib.h>
+
+void operator delete(void*) {
+  printk("Calling delete\n");
+  abort();
+}
+
+extern "C" void __cxa_pure_virtual() {
+  printk("__cxa_pure_virtual\n");
+  abort();
+}
+
+extern "C" void* memcpy(void* dstptr, const void* srcptr, const size_t n) {
+  auto* dst = static_cast<uint8_t*>(dstptr);
+  const auto* src = static_cast<const uint8_t*>(srcptr);
+  for (size_t i = 0; i < n; ++i) dst[i] = src[i];
+  return dstptr;
+}
+
+extern "C" void* memset(void* bufptr, const int value, const size_t n) {
+  auto* buf = static_cast<uint8_t*>(bufptr);
+  for (size_t i = 0; i < n; ++i) buf[i] = static_cast<uint8_t>(value);
+  return bufptr;
+}
+
+extern "C" void* memmove(void* dstptr, const void* srcptr, const size_t n) {
+  auto* dst = static_cast<uint8_t*>(dstptr);
+  const auto* src = static_cast<const uint8_t*>(srcptr);
+  if (dst < src) {
+    for (size_t i = 0; i < n; ++i) dst[i] = src[i];
+  } else {
+    for (size_t i = n; i != 0; i--) dst[i - 1] = src[i - 1];
+  }
+  return dstptr;
+}
+
+extern "C" int memcmp(const void* aptr, const void* bptr, const size_t n) {
+  const auto* a = static_cast<const uint8_t*>(aptr);
+  const auto* b = static_cast<const uint8_t*>(bptr);
+  for (size_t i = 0; i < n; ++i) {
+    if (a[i] < b[i])
+      return -1;
+    else if (b[i] < a[i])
+      return 1;
+  }
+  return 0;
+}
-- 
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