Kernel: Fix kmalloc memory corruption

Rather than hardcoding where the kmalloc pool should be, place
it at the end of the kernel image instead. This avoids corrupting
global variables or other parts of the kernel as it grows.

Fixes #3257

1 files changed, 3 insertions, 0 deletions

diff --git a/Kernel/Heap/kmalloc.h b/Kernel/Heap/kmalloc.h
index cf28535227..75f0fab642 100644
--- a/Kernel/Heap/kmalloc.h
+++ b/Kernel/Heap/kmalloc.h
@@ -61,3 +61,6 @@ inline void* operator new[](size_t, void* p) { return p; }
 #endif
     return kmalloc_impl(size);
 }
+
+extern u8* const kmalloc_start;
+extern u8* const kmalloc_end;