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kernel/process: Allocate the process' TLS region during initialization
Prior to execution within a process beginning, the process establishes its own TLS region for uses (as far as I can tell) related to exception handling. Now that TLS creation was decoupled from threads themselves, we can add this behavior to our Process class. This is also good, as it allows us to remove a stub within svcGetInfo, namely querying the address of that region.
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3 changed files with 14 additions and 3 deletions
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@ -187,6 +187,8 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata) {
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void Process::Run(s32 main_thread_priority, u64 stack_size) {
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AllocateMainThreadStack(stack_size);
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tls_region_address = CreateTLSRegion();
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vm_manager.LogLayout();
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ChangeStatus(ProcessStatus::Running);
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@ -218,6 +220,9 @@ void Process::PrepareForTermination() {
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stop_threads(system.Scheduler(2).GetThreadList());
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stop_threads(system.Scheduler(3).GetThreadList());
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FreeTLSRegion(tls_region_address);
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tls_region_address = 0;
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ChangeStatus(ProcessStatus::Exited);
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}
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@ -135,6 +135,11 @@ public:
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return mutex;
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}
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/// Gets the address to the process' dedicated TLS region.
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VAddr GetTLSRegionAddress() const {
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return tls_region_address;
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}
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/// Gets the current status of the process
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ProcessStatus GetStatus() const {
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return status;
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@ -341,6 +346,9 @@ private:
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/// variable related facilities.
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Mutex mutex;
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/// Address indicating the location of the process' dedicated TLS region.
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VAddr tls_region_address = 0;
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/// Random values for svcGetInfo RandomEntropy
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std::array<u64, RANDOM_ENTROPY_SIZE> random_entropy{};
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@ -831,9 +831,7 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha
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return RESULT_SUCCESS;
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case GetInfoType::UserExceptionContextAddr:
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LOG_WARNING(Kernel_SVC,
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"(STUBBED) Attempted to query user exception context address, returned 0");
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*result = 0;
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*result = process->GetTLSRegionAddress();
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return RESULT_SUCCESS;
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case GetInfoType::TotalPhysicalMemoryAvailableWithoutMmHeap:
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