From 2aca7b9e1e6255cf740afec5dd390d0e6726c1e3 Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Thu, 28 Mar 2019 18:24:56 -0400
Subject: [PATCH] kernel/process: Ensure that given stack size is always
 page-aligned

The kernel always makes sure that the given stack size is aligned to
page boundaries.
---
 src/core/hle/kernel/process.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 0d782e4ba..73b4ff961 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -5,6 +5,7 @@
 #include <algorithm>
 #include <memory>
 #include <random>
+#include "common/alignment.h"
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/core.h"
@@ -108,6 +109,9 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata) {
 }
 
 void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
+    // The kernel always ensures that the given stack size is page aligned.
+    stack_size = Common::AlignUp(stack_size, Memory::PAGE_SIZE);
+
     // Allocate and map the main thread stack
     // TODO(bunnei): This is heap area that should be allocated by the kernel and not mapped as part
     // of the user address space.