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svc: Implement svcGetProcessInfo
A fairly basic service function, which only appears to currently support retrieving the process state. This also alters the ProcessStatus enum to contain all of the values that a kernel process seems to be able of reporting with regards to state.
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1584fb6b38
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1c7a7ed79b
3 changed files with 50 additions and 4 deletions
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@ -24,6 +24,7 @@ class ProgramMetadata;
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namespace Kernel {
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namespace Kernel {
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class KernelCore;
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class KernelCore;
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class ResourceLimit;
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struct AddressMapping {
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struct AddressMapping {
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// Address and size must be page-aligned
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// Address and size must be page-aligned
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@ -57,9 +58,23 @@ union ProcessFlags {
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BitField<12, 1, u16> loaded_high; ///< Application loaded high (not at 0x00100000).
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BitField<12, 1, u16> loaded_high; ///< Application loaded high (not at 0x00100000).
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};
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};
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enum class ProcessStatus { Created, Running, Exited };
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/**
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* Indicates the status of a Process instance.
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class ResourceLimit;
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*
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* @note These match the values as used by kernel,
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* so new entries should only be added if RE
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* shows that a new value has been introduced.
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*/
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enum class ProcessStatus {
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Created,
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CreatedWithDebuggerAttached,
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Running,
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WaitingForDebuggerToAttach,
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DebuggerAttached,
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Exiting,
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Exited,
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DebugBreak,
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};
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struct CodeSet final {
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struct CodeSet final {
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struct Segment {
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struct Segment {
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@ -1092,6 +1092,29 @@ static ResultCode ClearEvent(Handle handle) {
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return RESULT_SUCCESS;
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return RESULT_SUCCESS;
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}
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}
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static ResultCode GetProcessInfo(u64* out, Handle process_handle, u32 type) {
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LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, type=0x{:X}", process_handle, type);
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// This function currently only allows retrieving a process' status.
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enum class InfoType {
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Status,
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};
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const auto& kernel = Core::System::GetInstance().Kernel();
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const auto process = kernel.HandleTable().Get<Process>(process_handle);
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if (!process) {
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return ERR_INVALID_HANDLE;
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}
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const auto info_type = static_cast<InfoType>(type);
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if (info_type != InfoType::Status) {
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return ERR_INVALID_ENUM_VALUE;
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}
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*out = static_cast<u64>(process->GetStatus());
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return RESULT_SUCCESS;
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}
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namespace {
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namespace {
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struct FunctionDef {
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struct FunctionDef {
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using Func = void();
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using Func = void();
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@ -1227,7 +1250,7 @@ static const FunctionDef SVC_Table[] = {
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{0x79, nullptr, "CreateProcess"},
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{0x79, nullptr, "CreateProcess"},
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{0x7A, nullptr, "StartProcess"},
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{0x7A, nullptr, "StartProcess"},
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{0x7B, nullptr, "TerminateProcess"},
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{0x7B, nullptr, "TerminateProcess"},
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{0x7C, nullptr, "GetProcessInfo"},
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{0x7C, SvcWrap<GetProcessInfo>, "GetProcessInfo"},
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{0x7D, nullptr, "CreateResourceLimit"},
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{0x7D, nullptr, "CreateResourceLimit"},
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{0x7E, nullptr, "SetResourceLimitLimitValue"},
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{0x7E, nullptr, "SetResourceLimitLimitValue"},
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{0x7F, nullptr, "CallSecureMonitor"},
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{0x7F, nullptr, "CallSecureMonitor"},
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@ -77,6 +77,14 @@ void SvcWrap() {
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FuncReturn(retval);
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FuncReturn(retval);
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}
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}
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template <ResultCode func(u64*, u32, u32)>
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void SvcWrap() {
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u64 param_1 = 0;
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u32 retval = func(¶m_1, static_cast<u32>(Param(1)), static_cast<u32>(Param(2))).raw;
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Core::CurrentArmInterface().SetReg(1, param_1);
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FuncReturn(retval);
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}
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template <ResultCode func(u32, u64)>
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template <ResultCode func(u32, u64)>
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void SvcWrap() {
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void SvcWrap() {
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FuncReturn(func(static_cast<u32>(Param(0)), Param(1)).raw);
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FuncReturn(func(static_cast<u32>(Param(0)), Param(1)).raw);
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