LibC: Use uintptr_t for __stack_chk_guard

We used size_t, which is a type that is guarenteed to be large
enough to hold an array index, but uintptr_t is designed to be used
to hold pointer values, which is the case of stack guards.

2 files changed, 5 insertions, 5 deletions

diff --git a/Kernel/Arch/aarch64/init.cpp b/Kernel/Arch/aarch64/init.cpp
index 4abc2826ad..de8743b511 100644
--- a/Kernel/Arch/aarch64/init.cpp
+++ b/Kernel/Arch/aarch64/init.cpp
@@ -65,8 +65,8 @@ extern ctor_func_t start_ctors[];
 extern ctor_func_t end_ctors[];
 
 // FIXME: Share this with the Intel Prekernel.
-extern size_t __stack_chk_guard;
-size_t __stack_chk_guard;
+extern uintptr_t __stack_chk_guard;
+uintptr_t __stack_chk_guard;
 
 READONLY_AFTER_INIT bool g_in_early_boot;
 
diff --git a/Kernel/Arch/x86/init.cpp b/Kernel/Arch/x86/init.cpp
index 070d5da303..054955995a 100644
--- a/Kernel/Arch/x86/init.cpp
+++ b/Kernel/Arch/x86/init.cpp
@@ -68,8 +68,8 @@ extern ctor_func_t end_heap_ctors[];
 extern ctor_func_t start_ctors[];
 extern ctor_func_t end_ctors[];
 
-extern size_t __stack_chk_guard;
-READONLY_AFTER_INIT size_t __stack_chk_guard __attribute__((used));
+extern uintptr_t __stack_chk_guard;
+READONLY_AFTER_INIT uintptr_t __stack_chk_guard __attribute__((used));
 
 extern "C" u8 start_of_safemem_text[];
 extern "C" u8 end_of_safemem_text[];
@@ -234,7 +234,7 @@ extern "C" [[noreturn]] UNMAP_AFTER_INIT void init(BootInfo const& boot_info)
     // Initialize TimeManagement before using randomness!
     TimeManagement::initialize(0);
 
-    __stack_chk_guard = get_fast_random<size_t>();
+    __stack_chk_guard = get_fast_random<uintptr_t>();
 
     ProcFSComponentRegistry::initialize();
     JailManagement::the();