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kernel/process: Ensure that given stack size is always page-aligned

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The kernel always makes sure that the given stack size is aligned to
page boundaries.
This commit is contained in:
Lioncash 2019-03-28 18:24:56 -04:00
parent 16dc3a1dd5
commit 2aca7b9e1e
1 changed files with 4 additions and 0 deletions
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4
src/core/hle/kernel/process.cpp
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@ -5,6 +5,7 @@
#include <algorithm> #include <algorithm>
#include <memory> #include <memory>
#include <random> #include <random>
#include "common/alignment.h"
#include "common/assert.h" #include "common/assert.h"
#include "common/logging/log.h" #include "common/logging/log.h"
#include "core/core.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) { 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 // 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 // TODO(bunnei): This is heap area that should be allocated by the kernel and not mapped as part
// of the user address space. // of the user address space.