From 2aca7b9e1e6255cf740afec5dd390d0e6726c1e3 Mon Sep 17 00:00:00 2001 From: Lioncash 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 #include #include +#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.