mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 01:07:36 +00:00
Kernel: Note if the page fault address is a destroyed smart pointer
While I was working on LibWeb, I got a page fault at 0xe0e0e0e4. This indicates a destroyed RefPtr if compiled with SANITIZE_PTRS defined. However, the page fault handler didn't print out this indication. This makes the page fault handler print out a note if the faulting address looks like a recently destroyed RefPtr, OwnPtr, NonnullRefPtr, NonnullOwnPtr, ThreadSafeRefPtr or ThreadSafeNonnullRefPtr. It will only do this if SANITIZE_PTRS is defined, as smart pointers don't get scrubbed without it being defined.
This commit is contained in:
parent
350c5a751d
commit
49259777ef
7 changed files with 45 additions and 12 deletions
|
@ -13,6 +13,8 @@
|
|||
#include <AK/Traits.h>
|
||||
#include <AK/Types.h>
|
||||
|
||||
#define NONNULLOWNPTR_SCRUB_BYTE 0xf1
|
||||
|
||||
namespace AK {
|
||||
|
||||
template<typename T, typename PtrTraits>
|
||||
|
@ -51,7 +53,7 @@ public:
|
|||
{
|
||||
clear();
|
||||
#ifdef SANITIZE_PTRS
|
||||
m_ptr = (T*)(explode_byte(0xe3));
|
||||
m_ptr = (T*)(explode_byte(NONNULLOWNPTR_SCRUB_BYTE));
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue