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Threads: Check the process' resource limit for the max allowed priority when creating a thread and remove the priority clamping code.

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This commit is contained in:
Subv 2017-01-11 13:20:14 -05:00
parent f2f2572fed
commit 1ddff14511
2 changed files with 9 additions and 13 deletions
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10
src/core/hle/kernel/thread.cpp
View file

@ -353,14 +353,8 @@ static void ResetThreadContext(ARM_Interface::ThreadContext& context, u32 stack_
ResultVal<SharedPtr<Thread>> 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<s32>(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);

12
src/core/hle/svc.cpp
View file

@ -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<ResourceLimit>& 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: