From 72dadc6706802794872da7768168f87250bd9f53 Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Sun, 7 May 2023 21:38:38 +0200
Subject: [PATCH] kernel: Define a constant to check for default memory access

---
 kernel/src/arch/x86_64/CPU.cpp    | 3 ++-
 kernel/src/memory/MemoryManager.h | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/src/arch/x86_64/CPU.cpp b/kernel/src/arch/x86_64/CPU.cpp
index 0b02c78e..c1e503b0 100644
--- a/kernel/src/arch/x86_64/CPU.cpp
+++ b/kernel/src/arch/x86_64/CPU.cpp
@@ -276,7 +276,8 @@ namespace CPU
     static void backtrace_impl(u64 base_pointer, void (*callback)(u64, void*), void* arg)
     {
         StackFrame* current_frame = (StackFrame*)base_pointer;
-        while (current_frame && MemoryManager::validate_access(current_frame, sizeof(*current_frame), 0) &&
+        while (current_frame &&
+               MemoryManager::validate_access(current_frame, sizeof(*current_frame), MemoryManager::DEFAULT_ACCESS) &&
                current_frame->instruction)
         {
             callback(current_frame->instruction, arg);
diff --git a/kernel/src/memory/MemoryManager.h b/kernel/src/memory/MemoryManager.h
index 14201d70..15a0a1fc 100644
--- a/kernel/src/memory/MemoryManager.h
+++ b/kernel/src/memory/MemoryManager.h
@@ -6,6 +6,8 @@
 
 namespace MemoryManager
 {
+    constexpr int DEFAULT_ACCESS = 0;
+
     void init();
 
     Result<void> protect_kernel_sections();