Map pages in read-only ELF sections as non-writable.

This is so cool! :^) Now you'll crash if you try to write into your
.text or .rodata segments.

1 files changed, 3 insertions, 1 deletions

diff --git a/Kernel/MemoryManager.h b/Kernel/MemoryManager.h
index 3c3df0d58d..0ebe056666 100644
--- a/Kernel/MemoryManager.h
+++ b/Kernel/MemoryManager.h
@@ -38,7 +38,7 @@ private:
 };
 
 struct Region : public Retainable<Region> {
-    Region(LinearAddress, size_t, RetainPtr<Zone>&&, String&&);
+    Region(LinearAddress, size_t, RetainPtr<Zone>&&, String&&, bool r, bool w);
     ~Region();
 
     RetainPtr<Region> clone();
@@ -46,6 +46,8 @@ struct Region : public Retainable<Region> {
     size_t size { 0 };
     RetainPtr<Zone> zone;
     String name;
+    bool is_readable { true };
+    bool is_writable { true };
 };
 
 #define MM MemoryManager::the()