Update files

Core/StackGuard.c

@@ -0,0 +1,58 @@
+#include <types.h>
+#include <debug.h>
+
+#ifndef STACK_CHK_GUARD_VALUE
+#if UINTPTR_MAX == UINT32_MAX
+#define STACK_CHK_GUARD_VALUE 0x25F6CC8D
+#else
+#define STACK_CHK_GUARD_VALUE 0xBADFE2EC255A8572
+#endif
+#endif
+
+__attribute__((weak)) uintptr_t __stack_chk_guard = 0;
+
+__attribute__((weak)) uintptr_t __stack_chk_guard_init(void)
+{
+    return STACK_CHK_GUARD_VALUE;
+}
+
+static void __attribute__((constructor, no_stack_protector)) __construct_stk_chk_guard()
+{
+    if (__stack_chk_guard == 0)
+        __stack_chk_guard = __stack_chk_guard_init();
+}
+
+// https://opensource.apple.com/source/xnu/xnu-1504.7.4/libkern/stack_protector.c.auto.html
+// static void __guard_setup(void) __attribute__((constructor));
+
+// static void __guard_setup(void)
+// {
+// read_random(__stack_chk_guard, sizeof(__stack_chk_guard));
+// }
+
+__attribute__((weak, noreturn, no_stack_protector)) void __stack_chk_fail(void)
+{
+    error("Stack smashing detected!", false);
+    for (;;)
+    {
+#if defined(__amd64__) || defined(__i386__)
+        asmv("hlt");
+#elif defined(__aarch64__)
+        asmv("wfe");
+#endif
+    }
+}
+
+// https://github.com/gcc-mirror/gcc/blob/master/libssp/ssp.c
+__attribute__((weak, noreturn, no_stack_protector)) void __chk_fail(void)
+{
+    error("Buffer overflow detected!", false);
+    for (;;)
+    {
+#if defined(__amd64__) || defined(__i386__)
+        asmv("hlt");
+#elif defined(__aarch64__)
+        asmv("wfe");
+#endif
+    }
+}