From 1ddff1451140ef58058237a3198d363b96dc238e Mon Sep 17 00:00:00 2001 From: Subv Date: Wed, 11 Jan 2017 13:20:14 -0500 Subject: [PATCH] Threads: Check the process' resource limit for the max allowed priority when creating a thread and remove the priority clamping code. --- src/core/hle/kernel/thread.cpp | 10 ++-------- src/core/hle/svc.cpp | 12 +++++++----- 2 files changed, 9 insertions(+), 13 deletions(-) diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 5ba9abf29..3b7555d87 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -353,14 +353,8 @@ static void ResetThreadContext(ARM_Interface::ThreadContext& context, u32 stack_ ResultVal> Thread::Create(std::string name, VAddr entry_point, s32 priority, u32 arg, s32 processor_id, VAddr stack_top) { - if (priority < THREADPRIO_HIGHEST || priority > THREADPRIO_LOWEST) { - s32 new_priority = MathUtil::Clamp(priority, THREADPRIO_HIGHEST, THREADPRIO_LOWEST); - LOG_WARNING(Kernel_SVC, "(name=%s): invalid priority=%d, clamping to %d", name.c_str(), - priority, new_priority); - // TODO(bunnei): Clamping to a valid priority is not necessarily correct behavior... Confirm - // validity of this - priority = new_priority; - } + ASSERT_MSG(priority >= THREADPRIO_HIGHEST && priority <= THREADPRIO_LOWEST, + "Invalid thread priority"); if (!Memory::IsValidVirtualAddress(entry_point)) { LOG_ERROR(Kernel_SVC, "(name=%s): invalid entry %08x", name.c_str(), entry_point); diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp index 8cb6a1c94..96db39ad9 100644 --- a/src/core/hle/svc.cpp +++ b/src/core/hle/svc.cpp @@ -532,16 +532,18 @@ static ResultCode CreateThread(Kernel::Handle* out_handle, s32 priority, u32 ent name = Common::StringFromFormat("unknown-%08x", entry_point); } - // TODO(bunnei): Implement resource limits to return an error code instead of the below assert. - // The error code should be: Description::NotAuthorized, Module::OS, Summary::WrongArgument, - // Level::Permanent - ASSERT_MSG(priority >= THREADPRIO_USERLAND_MAX, "Unexpected thread priority!"); - if (priority > THREADPRIO_LOWEST) { return ResultCode(ErrorDescription::OutOfRange, ErrorModule::OS, ErrorSummary::InvalidArgument, ErrorLevel::Usage); } + using Kernel::ResourceLimit; + Kernel::SharedPtr& resource_limit = Kernel::g_current_process->resource_limit; + if (resource_limit->GetMaxResourceValue(Kernel::ResourceTypes::PRIORITY) > priority) { + return ResultCode(ErrorDescription::NotAuthorized, ErrorModule::OS, + ErrorSummary::WrongArgument, ErrorLevel::Permanent); + } + switch (processor_id) { case THREADPROCESSORID_ALL: case THREADPROCESSORID_DEFAULT: