Replace /home/lvuser with /home/systemcore (#8002)

buildSrc/build.gradle

@@ -9,5 +9,5 @@ repositories {
     }
 }
 dependencies {
-    implementation "edu.wpi.first:native-utils:2025.9.1"
+    implementation "edu.wpi.first:native-utils:2025.12.1"
 }

cameraserver/src/main/native/cpp/cameraserver/CameraServer.cpp

@@ -184,9 +184,9 @@ std::vector<std::string> Instance::GetSourceStreamValues(CS_Source source) {
     value = "mjpg:" + value;
   }
 
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
   // Look to see if we have a passthrough server for this source
-  // Only do this on the roboRIO
+  // Only do this on the systemcore
   for (const auto& i : m_sinks) {
     CS_Sink sink = i.second.GetHandle();
     CS_Source sinkSource = cs::GetSinkSource(sink, &status);

datalogtool/src/main/native/cpp/Downloader.cpp

@@ -30,8 +30,9 @@
 
 Downloader::Downloader(glass::Storage& storage)
     : m_serverTeam{storage.GetString("serverTeam")},
-      m_remoteDir{storage.GetString("remoteDir", "/home/lvuser/logs")},
-      m_username{storage.GetString("username", "lvuser")},
+      m_remoteDir{storage.GetString("remoteDir", "/home/systemcore/logs")},
+      m_username{storage.GetString("username", "systemcore")},
+      m_password{"systemcore"},
       m_localDir{storage.GetString("localDir")},
       m_deleteAfter{storage.GetBool("deleteAfter", true)},
       m_thread{[this] { ThreadMain(); }} {}

developerRobot/README.md

@@ -40,7 +40,8 @@ This command deploys the Java project and all required dependencies. It also ins
 
 Those commands won't start the robot executable, so you have to manually ssh in and start it. The following command will do that.
 ```bash
-ssh lvuser@172.22.11.2 frcRunRobot.sh
+ssh systemcore@172.28.0.1 sudo systemctl stop robot
+ssh systemcore@172.22.11.2 sudo ~/robotCommand
 ```
 
 Console log prints will appear in the terminal.

hal/src/main/native/cpp/jni/HAL.cpp

@@ -6,7 +6,7 @@
 
 #include <jni.h>
 
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
 #include <signal.h>
 #endif
 
@@ -95,7 +95,7 @@ JNIEXPORT void JNICALL
 Java_edu_wpi_first_hal_HAL_terminate
   (JNIEnv*, jclass)
 {
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
   ::raise(SIGKILL);
 #endif
 }

hal/src/main/native/include/hal/handles/HandlesInternal.h

@@ -136,7 +136,7 @@ inline int16_t getHandleTypedIndex(HAL_Handle handle, HAL_HandleEnum enumType,
   if (!isHandleType(handle, enumType)) {
     return InvalidHandleIndex;
   }
-#if !defined(__FRC_ROBORIO__)
+#if !defined(__FRC_SYSTEMCORE__)
   if (!isHandleCorrectVersion(handle, version)) {
     return InvalidHandleIndex;
   }

ntcoreffi/src/main/native/cpp/DataLogManager.cpp

@@ -20,11 +20,6 @@
 #include <wpi/fs.h>
 #include <wpi/print.h>
 
-#ifdef __FRC_ROBORIO__
-#include <FRC_NetworkCommunication/FRCComm.h>
-#include <FRC_NetworkCommunication/LoadOut.h>
-#endif
-
 using namespace wpi;
 
 /** Shims to keep the code as similar as possible to wpilibc */
@@ -38,17 +33,18 @@ namespace frc {
 void ReportErrorV(int32_t status, const char* fileName, int lineNumber,
                   const char* funcName, fmt::string_view format,
                   fmt::format_args args) {
-#ifdef __FRC_ROBORIO__
-  if (status == 0) {
-    return;
-  }
-  fmt::memory_buffer out;
-  fmt::format_to(fmt::appender{out}, "Warning: ");
-  fmt::vformat_to(fmt::appender{out}, format, args);
-  out.push_back('\0');
-  FRC_NetworkCommunication_sendError(status < 0, status, 0, out.data(),
-                                     "DataLogManager", "");
-#endif
+  // TODO when we get a low level interface
+  // #ifdef __FRC_SYSTEMCORE__
+  //   if (status == 0) {
+  //     return;
+  //   }
+  //   fmt::memory_buffer out;
+  //   fmt::format_to(fmt::appender{out}, "Warning: ");
+  //   fmt::vformat_to(fmt::appender{out}, format, args);
+  //   out.push_back('\0');
+  //   FRC_NetworkCommunication_sendError(status < 0, status, 0, out.data(),
+  //                                      "DataLogManager", "");
+  // #endif
 }
 
 template <typename... Args>
@@ -70,10 +66,12 @@ inline void ReportError(int32_t status, const char* fileName, int lineNumber,
 
 namespace RobotController {
 inline bool IsSystemTimeValid() {
-#ifdef __FRC_ROBORIO__
-  uint8_t timeWasSet = 0;
-  FRC_NetworkCommunication_getTimeWasSet(&timeWasSet);
-  return timeWasSet != 0;
+#ifdef __FRC_SYSTEMCORE__
+  // TODO when we get a proper low level library, and time setting
+  return false;
+  // uint8_t timeWasSet = 0;
+  // FRC_NetworkCommunication_getTimeWasSet(&timeWasSet);
+  // return timeWasSet != 0;
 #else
   return true;
 #endif
@@ -82,8 +80,8 @@ inline bool IsSystemTimeValid() {
 
 namespace filesystem {
 inline std::string GetOperatingDirectory() {
-#ifdef __FRC_ROBORIO__
-  return "/home/lvuser";
+#ifdef __FRC_SYSTEMCORE__
+  return "/home/systemcore";
 #else
   return fs::current_path().string();
 #endif
@@ -91,73 +89,75 @@ inline std::string GetOperatingDirectory() {
 }  // namespace filesystem
 
 namespace DriverStation {
-#ifdef __FRC_ROBORIO__
-using MatchType = MatchType_t;
-constexpr int kNone = kMatchType_none;
-constexpr int kPractice = kMatchType_practice;
-constexpr int kQualification = kMatchType_qualification;
-constexpr int kElimination = kMatchType_elimination;
-char gEventName[128];
-MatchType_t gMatchType;
-uint16_t gMatchNumber;
-uint8_t gReplayNumber;
-uint8_t gGameSpecificMessage[16];
-uint16_t gGameSpecificMessageSize;
-#else
+// #ifdef __FRC_SYSTEMCORE__
+// using MatchType = MatchType_t;
+// constexpr int kNone = kMatchType_none;
+// constexpr int kPractice = kMatchType_practice;
+// constexpr int kQualification = kMatchType_qualification;
+// constexpr int kElimination = kMatchType_elimination;
+// char gEventName[128];
+// MatchType_t gMatchType;
+// uint16_t gMatchNumber;
+// uint8_t gReplayNumber;
+// uint8_t gGameSpecificMessage[16];
+// uint16_t gGameSpecificMessageSize;
+// #else
 enum MatchType { kNone, kPractice, kQualification, kElimination };
-#endif
+// #endif
 
 inline void UpdateMatchInfo() {
-#ifdef __FRC_ROBORIO__
-  gGameSpecificMessageSize = sizeof(gGameSpecificMessage);
-  FRC_NetworkCommunication_getMatchInfo(gEventName, &gMatchType, &gMatchNumber,
-                                        &gReplayNumber, gGameSpecificMessage,
-                                        &gGameSpecificMessageSize);
-#endif
+  // #ifdef __FRC_SYSTEMCORE__
+  //   gGameSpecificMessageSize = sizeof(gGameSpecificMessage);
+  //   FRC_NetworkCommunication_getMatchInfo(gEventName, &gMatchType,
+  //   &gMatchNumber,
+  //                                         &gReplayNumber,
+  //                                         gGameSpecificMessage,
+  //                                         &gGameSpecificMessageSize);
+  // #endif
 }
 
 inline MatchType GetMatchType() {
-#ifdef __FRC_ROBORIO__
-  return gMatchType;
-#else
+  // #ifdef __FRC_SYSTEMCORE__
+  //   return gMatchType;
+  // #else
   return kNone;
-#endif
+  // #endif
 }
 
 inline std::string_view GetEventName() {
-#ifdef __FRC_ROBORIO__
-  return gEventName;
-#else
+  // #ifdef __FRC_SYSTEMCORE__
+  //   return gEventName;
+  // #else
   return "";
-#endif
+  // #endif
 }
 
 inline uint16_t GetMatchNumber() {
-#ifdef __FRC_ROBORIO__
-  return gMatchNumber;
-#else
+  // #ifdef __FRC_SYSTEMCORE__
+  //   return gMatchNumber;
+  // #else
   return 0;
-#endif
+  // #endif
 }
 
 inline bool IsDSAttached() {
-#ifdef __FRC_ROBORIO__
-  struct ControlWord_t cw;
-  FRC_NetworkCommunication_getControlWord(&cw);
-  return cw.dsAttached;
-#else
+  // #ifdef __FRC_SYSTEMCORE__
+  //   struct ControlWord_t cw;
+  //   FRC_NetworkCommunication_getControlWord(&cw);
+  //   return cw.dsAttached;
+  // #else
   return true;
-#endif
+  // #endif
 }
 
 inline bool IsFMSAttached() {
-#ifdef __FRC_ROBORIO__
-  struct ControlWord_t cw;
-  FRC_NetworkCommunication_getControlWord(&cw);
-  return cw.fmsAttached;
-#else
+  // #ifdef __FRC_SYSTEMCORE__
+  //   struct ControlWord_t cw;
+  //   FRC_NetworkCommunication_getControlWord(&cw);
+  //   return cw.fmsAttached;
+  // #else
   return false;
-#endif
+  // #endif
 }
 
 WPI_EventHandle gNewDataEvent;
@@ -170,19 +170,19 @@ inline void RemoveRefreshedDataEventHandle(WPI_EventHandle event) {}
 
 }  // namespace DriverStation
 
-#ifdef __FRC_ROBORIO__
-static constexpr int kRoboRIO = 0;
-namespace RobotBase {
-inline int GetRuntimeType() {
-  nLoadOut::tTargetClass targetClass = nLoadOut::getTargetClass();
-  if (targetClass == nLoadOut::kTargetClass_RoboRIO2) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-}  // namespace RobotBase
-#endif
+// #ifdef __FRC_SYSTEMCORE__
+// static constexpr int kRoboRIO = 0;
+// namespace RobotBase {
+// inline int GetRuntimeType() {
+//   nLoadOut::tTargetClass targetClass = nLoadOut::getTargetClass();
+//   if (targetClass == nLoadOut::kTargetClass_RoboRIO2) {
+//     return 1;
+//   } else {
+//     return 0;
+//   }
+// }
+// }  // namespace RobotBase
+// #endif
 
 struct Thread final : public wpi::SafeThread {
   Thread(std::string_view dir, std::string_view filename, double period);
@@ -222,7 +222,7 @@ static std::string MakeLogDir(std::string_view dir) {
   if (!dir.empty()) {
     return std::string{dir};
   }
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
   // prefer a mounted USB drive if one is accessible
   std::error_code ec;
   auto s = fs::status("/u", ec);
@@ -231,13 +231,8 @@ static std::string MakeLogDir(std::string_view dir) {
     fs::create_directory("/u/logs", ec);
     return "/u/logs";
   }
-  if (RobotBase::GetRuntimeType() == kRoboRIO) {
-    FRC_ReportError(warn::Warning,
-                    "DataLogManager: Logging to RoboRIO 1 internal storage is "
-                    "not recommended! Plug in a FAT32 formatted flash drive!");
-  }
-  fs::create_directory("/home/lvuser/logs", ec);
-  return "/home/lvuser/logs";
+  fs::create_directory("/home/systemcore/logs", ec);
+  return "/home/systemcore/logs";
 #else
   std::string logDir = filesystem::GetOperatingDirectory() + "/logs";
   std::error_code ec;
@@ -460,7 +455,7 @@ void Thread::StopNTLog() {
 void Thread::StartConsoleLog() {
   if (!m_consoleLoggerEnabled) {
     m_consoleLoggerEnabled = true;
-    m_consoleLogger = {"/home/lvuser/FRC_UserProgram.log", m_log, "output"};
+    m_consoleLogger = {"/home/systemcore/FRC_UserProgram.log", m_log, "output"};
   }
 }
 

ntcoreffi/src/main/native/include/DataLogManager.h

@@ -21,7 +21,7 @@ namespace wpi {
  * automatically cleans up old files when disk space is low and renames the file
  * based either on current date/time or (if available) competition match number.
  * The data file will be saved to a USB flash drive in a folder named "logs" if
- * one is attached, or to /home/lvuser/logs otherwise.
+ * one is attached, or to /home/systemcore/logs otherwise.
  *
  * Log files are initially named "FRC_TBD_{random}.wpilog" until the DS
  * connects. After the DS connects, the log file is renamed to

wpilibc/src/main/native/cpp/DataLogManager.cpp

@@ -71,7 +71,7 @@ static std::string MakeLogDir(std::string_view dir) {
   if (!dir.empty()) {
     return std::string{dir};
   }
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
   // prefer a mounted USB drive if one is accessible
   std::error_code ec;
   auto s = fs::status("/u", ec);
@@ -81,14 +81,9 @@ static std::string MakeLogDir(std::string_view dir) {
     return "/u/logs";
     HAL_ReportUsage("DataLogManager", "USB");
   }
-  if (RobotBase::GetRuntimeType() == kRoboRIO) {
-    FRC_ReportWarning(
-        "DataLogManager: Logging to RoboRIO 1 internal storage is "
-        "not recommended! Plug in a FAT32 formatted flash drive!");
-  }
-  fs::create_directory("/home/lvuser/logs", ec);
+  fs::create_directory("/home/systemcore/logs", ec);
   HAL_ReportUsage("DataLogManager", "Onboard");
-  return "/home/lvuser/logs";
+  return "/home/systemcore/logs";
 #else
   std::string logDir = filesystem::GetOperatingDirectory() + "/logs";
   std::error_code ec;
@@ -312,7 +307,8 @@ void Thread::StopNTLog() {
 void Thread::StartConsoleLog() {
   if (!m_consoleLoggerEnabled && RobotBase::IsReal()) {
     m_consoleLoggerEnabled = true;
-    m_consoleLogger = {"/home/lvuser/FRC_UserProgram.log", m_log, "console"};
+    m_consoleLogger = {"/home/systemcore/FRC_UserProgram.log", m_log,
+                       "console"};
   }
 }
 

wpilibc/src/main/native/cpp/Filesystem.cpp

@@ -16,7 +16,7 @@ std::string frc::filesystem::GetLaunchDirectory() {
 
 std::string frc::filesystem::GetOperatingDirectory() {
   if constexpr (!RobotBase::IsSimulation()) {
-    return "/home/lvuser";
+    return "/home/systemcore";
   } else {
     return frc::filesystem::GetLaunchDirectory();
   }
@@ -24,7 +24,7 @@ std::string frc::filesystem::GetOperatingDirectory() {
 
 std::string frc::filesystem::GetDeployDirectory() {
   if constexpr (!RobotBase::IsSimulation()) {
-    return "/home/lvuser/deploy";
+    return "/home/systemcore/deploy";
   } else {
     return (fs::current_path() / "src" / "main" / "deploy").string();
   }

wpilibc/src/main/native/cpp/MotorSafety.cpp

@@ -69,7 +69,7 @@ static MotorSafetyManager& GetManager() {
   return manager;
 }
 
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
 namespace frc::impl {
 void ResetMotorSafety() {
   auto& manager = GetManager();

wpilibc/src/main/native/cpp/Preferences.cpp

@@ -41,7 +41,7 @@ static Instance& GetInstance() {
   return instance;
 }
 
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
 namespace frc::impl {
 void ResetPreferencesInstance() {
   GetInstance() = Instance();

wpilibc/src/main/native/cpp/smartdashboard/SmartDashboard.cpp

@@ -41,7 +41,7 @@ static Instance& GetInstance() {
   return *GetInstanceHolder();
 }
 
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
 namespace frc::impl {
 void ResetSmartDashboardInstance() {
   std::make_unique<Instance>().swap(GetInstanceHolder());

wpilibc/src/main/native/cppcs/RobotBase.cpp

@@ -4,7 +4,7 @@
 
 #include "frc/RobotBase.h"
 
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
 #include <dlfcn.h>
 #endif
 
@@ -34,6 +34,8 @@ static_assert(frc::RuntimeType::kRoboRIO2 ==
               static_cast<frc::RuntimeType>(HAL_Runtime_RoboRIO2));
 static_assert(frc::RuntimeType::kSimulation ==
               static_cast<frc::RuntimeType>(HAL_Runtime_Simulation));
+static_assert(frc::RuntimeType::kSystemCore ==
+              static_cast<frc::RuntimeType>(HAL_Runtime_SystemCore));
 
 using SetCameraServerSharedFP = void (*)(frc::CameraServerShared*);
 
@@ -104,7 +106,7 @@ class WPILibMathShared : public wpi::math::MathShared {
 }  // namespace
 
 static void SetupCameraServerShared() {
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
 #ifdef DYNAMIC_CAMERA_SERVER
 #ifdef DYNAMIC_CAMERA_SERVER_DEBUG
   auto cameraServerLib = dlopen("libcameraserverd.so", RTLD_NOW);
@@ -189,7 +191,7 @@ RobotBase::RobotBase() {
   // subscribe to "" to force persistent values to propagate to local
   nt::SubscribeMultiple(inst.GetHandle(), {{std::string_view{}}});
   if constexpr (!IsSimulation()) {
-    inst.StartServer("/home/lvuser/networktables.json");
+    inst.StartServer("/home/systemcore/networktables.json");
   } else {
     inst.StartServer();
   }

wpilibc/src/main/native/include/frc/DataLogManager.h

@@ -18,7 +18,7 @@ namespace frc {
  * automatically cleans up old files when disk space is low and renames the file
  * based either on current date/time or (if available) competition match number.
  * The data file will be saved to a USB flash drive in a folder named "logs" if
- * one is attached, or to /home/lvuser/logs otherwise.
+ * one is attached, or to /home/systemcore/logs otherwise.
  *
  * Log files are initially named "FRC_TBD_{random}.wpilog" until the DS
  * connects. After the DS connects, the log file is renamed to

wpilibc/src/main/native/include/frc/Filesystem.h

@@ -19,7 +19,7 @@ std::string GetLaunchDirectory();
 
 /**
  * Obtains the operating directory of the program. On the roboRIO, this
- * is /home/lvuser. In simulation, it is where the simulation was launched
+ * is /home/systemcore. In simulation, it is where the simulation was launched
  * from (`pwd`).
  *
  * @return The result of the operating directory lookup.
@@ -29,8 +29,8 @@ std::string GetOperatingDirectory();
 /**
  * Obtains the deploy directory of the program, which is the remote location
  * src/main/deploy is deployed to by default. On the roboRIO, this is
- * /home/lvuser/deploy. In simulation, it is where the simulation was launched
- * from, in the subdirectory "src/main/deploy" (`pwd`/src/main/deploy).
+ * /home/systemcore/deploy. In simulation, it is where the simulation was
+ * launched from, in the subdirectory "src/main/deploy" (`pwd`/src/main/deploy).
  *
  * @return The result of the operating directory lookup
  */

wpilibc/src/main/native/include/frc/RobotBase.h

@@ -24,7 +24,7 @@ namespace frc {
 int RunHALInitialization();
 
 namespace impl {
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
 void ResetMotorSafety();
 #endif
 
@@ -124,7 +124,7 @@ int StartRobot() {
     impl::RunRobot<Robot>(m, &robot);
   }
 
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
   frc::impl::ResetMotorSafety();
 #endif
   HAL_Shutdown();
@@ -235,7 +235,7 @@ class RobotBase {
    * @return If the robot is running in the real world.
    */
   static constexpr bool IsReal() {
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
     return true;
 #else
     return false;
@@ -248,7 +248,7 @@ class RobotBase {
    * @return If the robot is running in simulation.
    */
   static constexpr bool IsSimulation() {
-#ifdef __FRC_ROBORIO__
+#ifdef __FRC_SYSTEMCORE__
     return false;
 #else
     return true;

wpilibc/src/main/native/include/frc/RuntimeType.h

@@ -14,6 +14,7 @@ enum RuntimeType {
   /// roboRIO 2.0.
   kRoboRIO2,
   /// Simulation runtime.
-  kSimulation
+  kSimulation,
+  kSystemCore
 };
 }  // namespace frc

wpilibc/src/test/native/cpp/main.cpp

@@ -5,7 +5,7 @@
 #include <gtest/gtest.h>
 #include <hal/HALBase.h>
 
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
 namespace frc::impl {
 void ResetMotorSafety();
 }
@@ -15,7 +15,7 @@ int main(int argc, char** argv) {
   HAL_Initialize(500, 0);
   ::testing::InitGoogleTest(&argc, argv);
   int ret = RUN_ALL_TESTS();
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
   frc::impl::ResetMotorSafety();
 #endif
   return ret;

wpilibj/src/main/java/edu/wpi/first/wpilibj/DataLogManager.java

@@ -29,7 +29,7 @@ import java.util.Random;
  * Centralized data log that provides automatic data log file management. It automatically cleans up
  * old files when disk space is low and renames the file based either on current date/time or (if
  * available) competition match number. The data file will be saved to a USB flash drive in a folder
- * named "logs" if one is attached, or to /home/lvuser/logs otherwise.
+ * named "logs" if one is attached, or to /home/systemcore/logs otherwise.
  *
  * <p>Log files are initially named "FRC_TBD_{random}.wpilog" until the DS connects. After the DS
  * connects, the log file is renamed to "FRC_yyyyMMdd_HHmmss.wpilog" (where the date/time is UTC).
@@ -251,17 +251,11 @@ public final class DataLogManager {
       } catch (IOException ex) {
         // ignored
       }
-      if (RobotBase.getRuntimeType() == RuntimeType.kRoboRIO) {
-        DriverStation.reportWarning(
-            "DataLogManager: Logging to RoboRIO 1 internal storage is not recommended!"
-                + " Plug in a FAT32 formatted flash drive!",
-            false);
-      }
-      if (!new File("/home/lvuser/logs").mkdir()) {
+      if (!new File("/home/systemcore/logs").mkdir()) {
         // ignored
       }
       HAL.reportUsage("DataLogManager", "Onboard");
-      return "/home/lvuser/logs";
+      return "/home/systemcore/logs";
     }
     String logDir = Filesystem.getOperatingDirectory().getAbsolutePath() + "/logs";
     if (!new File(logDir).mkdir()) {
@@ -297,7 +291,7 @@ public final class DataLogManager {
 
   private static void startConsoleLog() {
     if (RobotBase.isReal()) {
-      m_consoleLogger = new FileLogger("/home/lvuser/FRC_UserProgram.log", m_log, "console");
+      m_consoleLogger = new FileLogger("/home/systemcore/FRC_UserProgram.log", m_log, "console");
     }
   }
 

wpilibj/src/main/java/edu/wpi/first/wpilibj/Filesystem.java

@@ -10,8 +10,8 @@ import java.io.File;
  * Class for interacting with the Filesystem, particularly, interacting with FRC-related paths on
  * the system, such as the launch and deploy directories.
  *
- * <p>This class is primarily used for obtaining resources in src/main/deploy, and the RoboRIO path
- * /home/lvuser in a simulation-compatible way.
+ * <p>This class is primarily used for obtaining resources in src/main/deploy, and the systemcore
+ * path /home/systemcore in a simulation-compatible way.
  */
 public final class Filesystem {
   private Filesystem() {}
@@ -33,14 +33,14 @@ public final class Filesystem {
   }
 
   /**
-   * Obtains the operating directory of the program. On the roboRIO, this is /home/lvuser. In
+   * Obtains the operating directory of the program. On the systemcore, this is /home/systemcore. In
    * simulation, it is where the simulation was launched from (`pwd`).
    *
    * @return The operating directory
    */
   public static File getOperatingDirectory() {
     if (!RobotBase.isSimulation()) {
-      return new File("/home/lvuser");
+      return new File("/home/systemcore");
     } else {
       return getLaunchDirectory();
     }
@@ -48,8 +48,8 @@ public final class Filesystem {
 
   /**
    * Obtains the 'deploy' directory of the program, located at src/main/deploy, which is deployed by
-   * default. On the roboRIO, this is /home/lvuser/deploy. In simulation, it is where the simulation
-   * was launched from, in the subdirectory "src/main/deploy" (`pwd`/src/main/deploy).
+   * default. On the systemcore, this is /home/systemcore/deploy. In simulation, it is where the
+   * simulation was launched from, in the subdirectory "src/main/deploy" (`pwd`/src/main/deploy).
    *
    * @return The 'deploy' directory
    */

wpilibj/src/main/java/edu/wpi/first/wpilibj/RobotBase.java

@@ -99,7 +99,7 @@ public abstract class RobotBase implements AutoCloseable {
     // subscribe to "" to force persistent values to propagate to local
     m_suball = new MultiSubscriber(inst, new String[] {""});
     if (!isSimulation()) {
-      inst.startServer("/home/lvuser/networktables.json");
+      inst.startServer("/home/systemcore/networktables.json");
     } else {
       inst.startServer();
     }
@@ -168,7 +168,7 @@ public abstract class RobotBase implements AutoCloseable {
    */
   public static boolean isReal() {
     RuntimeType runtimeType = getRuntimeType();
-    return runtimeType == RuntimeType.kRoboRIO || runtimeType == RuntimeType.kRoboRIO2;
+    return runtimeType == RuntimeType.kSystemCore;
   }
 
   /**

wpiutil/src/main/native/cpp/jni/WPIUtilJNI.cpp

@@ -128,8 +128,8 @@ JNIEXPORT void JNICALL
 Java_edu_wpi_first_util_WPIUtilJNI_enableMockTime
   (JNIEnv*, jclass)
 {
-#ifdef __FRC_ROBORIO__
-  wpi::print(stderr, "WPIUtil: Mocking time is not available on the Rio\n");
+#ifdef __FRC_SYSTEMCORE__
+  wpi::print(stderr, "WPIUtil: Mocking time is not available on systemcore\n");
 #else
   mockTimeEnabled = true;
   wpi::SetNowImpl([] { return mockNow; });

wpiutil/src/main/native/cpp/sendable/SendableRegistry.cpp

@@ -71,7 +71,7 @@ static SendableRegistryInst& GetInstance() {
   return *GetInstanceHolder();
 }
 
-#ifndef __FRC_ROBORIO__
+#ifndef __FRC_SYSTEMCORE__
 namespace wpi::impl {
 void ResetSendableRegistry() {
   std::make_unique<SendableRegistryInst>().swap(GetInstanceHolder());

wpiutil/src/main/native/include/wpi/priority_mutex.h

@@ -13,6 +13,8 @@
 
 namespace wpi {
 
+// TODO replace this with systemcore once our compiler has the defines
+// for RT
 #if defined(__FRC_ROBORIO__) && !defined(WPI_USE_PRIORITY_MUTEX)
 #define WPI_USE_PRIORITY_MUTEX
 #endif