diff --git a/lldb/include/lldb/Target/Platform.h b/lldb/include/lldb/Target/Platform.h
--- a/lldb/include/lldb/Target/Platform.h
+++ b/lldb/include/lldb/Target/Platform.h
@@ -619,10 +619,12 @@
     return 1;
   }
 
-  virtual const lldb::UnixSignalsSP &GetRemoteUnixSignals();
+  virtual lldb::UnixSignalsSP GetRemoteUnixSignals();
 
   lldb::UnixSignalsSP GetUnixSignals();
 
+  virtual lldb::UnixSignalsSP CreateUnixSignals() = 0;
+
   /// Locate a queue name given a thread's qaddr
   ///
   /// On a system using libdispatch ("Grand Central Dispatch") style queues, a
diff --git a/lldb/include/lldb/Target/UnixSignals.h b/lldb/include/lldb/Target/UnixSignals.h
--- a/lldb/include/lldb/Target/UnixSignals.h
+++ b/lldb/include/lldb/Target/UnixSignals.h
@@ -22,7 +22,6 @@
 
 class UnixSignals {
 public:
-  static lldb::UnixSignalsSP Create(const ArchSpec &arch);
   static lldb::UnixSignalsSP CreateForHost();
 
   // Constructors and Destructors
diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/CMakeLists.txt b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/CMakeLists.txt
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/CMakeLists.txt
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/CMakeLists.txt
@@ -19,6 +19,7 @@
     lldbUtility
     lldbPluginExpressionParserClang
     lldbPluginCPPRuntime
+    lldbPluginProcessUtility
     lldbPluginTypeSystemClang
   CLANG_LIBS
     clangAST
diff --git a/lldb/source/Plugins/Platform/FreeBSD/CMakeLists.txt b/lldb/source/Plugins/Platform/FreeBSD/CMakeLists.txt
--- a/lldb/source/Plugins/Platform/FreeBSD/CMakeLists.txt
+++ b/lldb/source/Plugins/Platform/FreeBSD/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_lldb_library(lldbPluginPlatformFreeBSD PLUGIN
+  FreeBSDSignals.cpp
   PlatformFreeBSD.cpp
 
    LINK_LIBS
diff --git a/lldb/source/Plugins/Process/Utility/FreeBSDSignals.h b/lldb/source/Plugins/Platform/FreeBSD/FreeBSDSignals.h
rename from lldb/source/Plugins/Process/Utility/FreeBSDSignals.h
rename to lldb/source/Plugins/Platform/FreeBSD/FreeBSDSignals.h
diff --git a/lldb/source/Plugins/Process/Utility/FreeBSDSignals.cpp b/lldb/source/Plugins/Platform/FreeBSD/FreeBSDSignals.cpp
rename from lldb/source/Plugins/Process/Utility/FreeBSDSignals.cpp
rename to lldb/source/Plugins/Platform/FreeBSD/FreeBSDSignals.cpp
diff --git a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h
--- a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h
+++ b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.h
@@ -59,6 +59,8 @@
 
   std::vector<ArchSpec> m_supported_architectures;
 
+  lldb::UnixSignalsSP CreateUnixSignals() override;
+
 private:
   std::mutex m_mutex;
   std::shared_ptr<TypeSystemClang> m_type_system;
diff --git a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp
--- a/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp
+++ b/lldb/source/Plugins/Platform/FreeBSD/PlatformFreeBSD.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "PlatformFreeBSD.h"
+#include "FreeBSDSignals.h"
 #include "lldb/Host/Config.h"
 
 #include <cstdio>
@@ -282,3 +283,7 @@
   ast->CompleteTagDeclarationDefinition(siginfo_type);
   return siginfo_type;
 }
+
+lldb::UnixSignalsSP PlatformFreeBSD::CreateUnixSignals() {
+  return std::make_shared<FreeBSDSignals>();
+}
diff --git a/lldb/source/Plugins/Platform/Linux/CMakeLists.txt b/lldb/source/Plugins/Platform/Linux/CMakeLists.txt
--- a/lldb/source/Plugins/Platform/Linux/CMakeLists.txt
+++ b/lldb/source/Plugins/Platform/Linux/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_lldb_library(lldbPluginPlatformLinux PLUGIN
+  LinuxSignals.cpp
   PlatformLinux.cpp
 
    LINK_LIBS
diff --git a/lldb/source/Plugins/Process/Utility/LinuxSignals.h b/lldb/source/Plugins/Platform/Linux/LinuxSignals.h
rename from lldb/source/Plugins/Process/Utility/LinuxSignals.h
rename to lldb/source/Plugins/Platform/Linux/LinuxSignals.h
diff --git a/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp b/lldb/source/Plugins/Platform/Linux/LinuxSignals.cpp
rename from lldb/source/Plugins/Process/Utility/LinuxSignals.cpp
rename to lldb/source/Plugins/Platform/Linux/LinuxSignals.cpp
diff --git a/lldb/source/Plugins/Platform/Linux/PlatformLinux.h b/lldb/source/Plugins/Platform/Linux/PlatformLinux.h
--- a/lldb/source/Plugins/Platform/Linux/PlatformLinux.h
+++ b/lldb/source/Plugins/Platform/Linux/PlatformLinux.h
@@ -64,6 +64,8 @@
 
   std::vector<ArchSpec> m_supported_architectures;
 
+  lldb::UnixSignalsSP CreateUnixSignals() override;
+
 private:
   std::mutex m_mutex;
   std::shared_ptr<TypeSystemClang> m_type_system;
diff --git a/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp b/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
--- a/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
+++ b/lldb/source/Plugins/Platform/Linux/PlatformLinux.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "PlatformLinux.h"
+#include "LinuxSignals.h"
 #include "lldb/Host/Config.h"
 
 #include <cstdio>
@@ -480,3 +481,7 @@
   ast->CompleteTagDeclarationDefinition(siginfo_type);
   return siginfo_type;
 }
+
+lldb::UnixSignalsSP PlatformLinux::CreateUnixSignals() {
+  return std::make_shared<LinuxSignals>();
+}
diff --git a/lldb/source/Plugins/Platform/NetBSD/CMakeLists.txt b/lldb/source/Plugins/Platform/NetBSD/CMakeLists.txt
--- a/lldb/source/Plugins/Platform/NetBSD/CMakeLists.txt
+++ b/lldb/source/Plugins/Platform/NetBSD/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_lldb_library(lldbPluginPlatformNetBSD PLUGIN
+  NetBSDSignals.cpp
   PlatformNetBSD.cpp
 
    LINK_LIBS
diff --git a/lldb/source/Plugins/Process/Utility/NetBSDSignals.h b/lldb/source/Plugins/Platform/NetBSD/NetBSDSignals.h
rename from lldb/source/Plugins/Process/Utility/NetBSDSignals.h
rename to lldb/source/Plugins/Platform/NetBSD/NetBSDSignals.h
diff --git a/lldb/source/Plugins/Process/Utility/NetBSDSignals.cpp b/lldb/source/Plugins/Platform/NetBSD/NetBSDSignals.cpp
rename from lldb/source/Plugins/Process/Utility/NetBSDSignals.cpp
rename to lldb/source/Plugins/Platform/NetBSD/NetBSDSignals.cpp
diff --git a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h
--- a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h
+++ b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.h
@@ -61,6 +61,8 @@
 
   std::vector<ArchSpec> m_supported_architectures;
 
+  lldb::UnixSignalsSP CreateUnixSignals() override;
+
 private:
   std::mutex m_mutex;
   std::shared_ptr<TypeSystemClang> m_type_system;
diff --git a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp
--- a/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp
+++ b/lldb/source/Plugins/Platform/NetBSD/PlatformNetBSD.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "PlatformNetBSD.h"
+#include "NetBSDSignals.h"
 #include "lldb/Host/Config.h"
 
 #include <cstdio>
@@ -348,3 +349,7 @@
   ast->CompleteTagDeclarationDefinition(siginfo_type);
   return siginfo_type;
 }
+
+lldb::UnixSignalsSP PlatformNetBSD::CreateUnixSignals() {
+  return std::make_shared<NetBSDSignals>();
+}
diff --git a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.h b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.h
--- a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.h
+++ b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.h
@@ -35,7 +35,7 @@
   GetFile(const lldb_private::FileSpec &source,
           const lldb_private::FileSpec &destination) override;
 
-  const lldb::UnixSignalsSP &GetRemoteUnixSignals() override;
+  lldb::UnixSignalsSP GetRemoteUnixSignals() override;
 
   lldb::ProcessSP Attach(lldb_private::ProcessAttachInfo &attach_info,
                          lldb_private::Debugger &debugger,
@@ -69,6 +69,8 @@
 
   lldb_private::ConstString GetFullNameForDylib(lldb_private::ConstString basename) override;
 
+  lldb::UnixSignalsSP CreateUnixSignals() override;
+
 protected:
   std::unique_ptr<lldb_private::OptionGroupPlatformRSync>
       m_option_group_platform_rsync;
diff --git a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
--- a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
+++ b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
@@ -27,6 +27,7 @@
 #include "lldb/Target/ExecutionContext.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/Thread.h"
+#include "lldb/Target/UnixSignals.h"
 #include "lldb/Utility/DataBufferHeap.h"
 #include "lldb/Utility/FileSpec.h"
 #include "lldb/Utility/LLDBLog.h"
@@ -294,9 +295,13 @@
     return "";
 }
 
-const lldb::UnixSignalsSP &PlatformPOSIX::GetRemoteUnixSignals() {
-  if (IsRemote() && m_remote_platform_sp)
-    return m_remote_platform_sp->GetRemoteUnixSignals();
+lldb::UnixSignalsSP PlatformPOSIX::GetRemoteUnixSignals() {
+  if (IsRemote() && m_remote_platform_sp) {
+    if (auto unix_signals_sp = m_remote_platform_sp->GetRemoteUnixSignals())
+      return unix_signals_sp;
+  }
+  if (auto unix_signals_sp = CreateUnixSignals())
+    return unix_signals_sp;
   return Platform::GetRemoteUnixSignals();
 }
 
@@ -989,3 +994,7 @@
   stream.Printf("lib%s.so", basename.GetCString());
   return ConstString(stream.GetString());
 }
+
+lldb::UnixSignalsSP PlatformPOSIX::CreateUnixSignals() {
+  return std::make_shared<UnixSignals>();
+}
diff --git a/lldb/source/Plugins/Platform/QemuUser/PlatformQemuUser.h b/lldb/source/Plugins/Platform/QemuUser/PlatformQemuUser.h
--- a/lldb/source/Plugins/Platform/QemuUser/PlatformQemuUser.h
+++ b/lldb/source/Plugins/Platform/QemuUser/PlatformQemuUser.h
@@ -69,6 +69,12 @@
         arch, addr, length, prot, flags, fd, offset);
   }
 
+  lldb::UnixSignalsSP CreateUnixSignals() override {
+    // PlatformQemuUser shouldn't create its own UnixSignals. It should defer to
+    // other platforms.
+    return lldb::UnixSignalsSP();
+  }
+
 private:
   static lldb::PlatformSP CreateInstance(bool force, const ArchSpec *arch);
   static void DebuggerInitialize(Debugger &debugger);
diff --git a/lldb/source/Plugins/Platform/Windows/PlatformWindows.h b/lldb/source/Plugins/Platform/Windows/PlatformWindows.h
--- a/lldb/source/Plugins/Platform/Windows/PlatformWindows.h
+++ b/lldb/source/Plugins/Platform/Windows/PlatformWindows.h
@@ -82,6 +82,10 @@
 
   std::vector<ArchSpec> m_supported_architectures;
 
+  lldb::UnixSignalsSP CreateUnixSignals() override {
+    return lldb::UnixSignalsSP();
+  }
+
 private:
   std::unique_ptr<lldb_private::UtilityFunction>
   MakeLoadImageUtilityFunction(lldb_private::ExecutionContext &context,
diff --git a/lldb/source/Plugins/Platform/gdb-server/CMakeLists.txt b/lldb/source/Plugins/Platform/gdb-server/CMakeLists.txt
--- a/lldb/source/Plugins/Platform/gdb-server/CMakeLists.txt
+++ b/lldb/source/Plugins/Platform/gdb-server/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_lldb_library(lldbPluginPlatformGDB PLUGIN
+  GDBRemoteSignals.cpp
   PlatformRemoteGDBServer.cpp
 
    LINK_LIBS
@@ -6,6 +7,5 @@
     lldbCore
     lldbHost
     lldbTarget
-    lldbPluginProcessUtility
     lldbPluginProcessGDBRemote
   )
diff --git a/lldb/source/Plugins/Process/Utility/GDBRemoteSignals.h b/lldb/source/Plugins/Platform/gdb-server/GDBRemoteSignals.h
rename from lldb/source/Plugins/Process/Utility/GDBRemoteSignals.h
rename to lldb/source/Plugins/Platform/gdb-server/GDBRemoteSignals.h
diff --git a/lldb/source/Plugins/Process/Utility/GDBRemoteSignals.cpp b/lldb/source/Plugins/Platform/gdb-server/GDBRemoteSignals.cpp
rename from lldb/source/Plugins/Process/Utility/GDBRemoteSignals.cpp
rename to lldb/source/Plugins/Platform/gdb-server/GDBRemoteSignals.cpp
diff --git a/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h b/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h
--- a/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h
+++ b/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h
@@ -13,7 +13,6 @@
 #include <optional>
 #include <string>
 
-#include "Plugins/Process/Utility/GDBRemoteSignals.h"
 #include "Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h"
 #include "lldb/Target/Platform.h"
 
@@ -146,7 +145,7 @@
 
   void CalculateTrapHandlerSymbolNames() override;
 
-  const lldb::UnixSignalsSP &GetRemoteUnixSignals() override;
+  lldb::UnixSignalsSP GetRemoteUnixSignals() override;
 
   size_t ConnectToWaitingProcesses(lldb_private::Debugger &debugger,
                                    lldb_private::Status &error) override;
@@ -154,6 +153,11 @@
   virtual size_t
   GetPendingGdbServerList(std::vector<std::string> &connection_urls);
 
+  lldb::UnixSignalsSP CreateUnixSignals() override {
+    // PlatformRemoteGDBServer should defer to other platforms.
+    return lldb::UnixSignalsSP();
+  }
+
 protected:
   std::unique_ptr<process_gdb_remote::GDBRemoteCommunicationClient>
       m_gdb_client_up;
diff --git a/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp b/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
--- a/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
+++ b/lldb/source/Plugins/Platform/gdb-server/PlatformRemoteGDBServer.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "PlatformRemoteGDBServer.h"
+#include "GDBRemoteSignals.h"
 #include "lldb/Host/Config.h"
 
 #include "lldb/Breakpoint/BreakpointLocation.h"
@@ -31,7 +32,6 @@
 #include "lldb/Utility/UriParser.h"
 #include "llvm/Support/FormatAdapters.h"
 
-#include "Plugins/Process/Utility/GDBRemoteSignals.h"
 #include "Plugins/Process/gdb-remote/ProcessGDBRemote.h"
 #include <optional>
 
@@ -680,17 +680,13 @@
   m_trap_handlers.push_back(ConstString("_sigtramp"));
 }
 
-const UnixSignalsSP &PlatformRemoteGDBServer::GetRemoteUnixSignals() {
+UnixSignalsSP PlatformRemoteGDBServer::GetRemoteUnixSignals() {
   if (!IsConnected())
-    return Platform::GetRemoteUnixSignals();
+    return UnixSignalsSP();
 
   if (m_remote_signals_sp)
     return m_remote_signals_sp;
 
-  // If packet not implemented or JSON failed to parse, we'll guess the signal
-  // set based on the remote architecture.
-  m_remote_signals_sp = UnixSignals::Create(GetRemoteSystemArchitecture());
-
   StringExtractorGDBRemote response;
   auto result =
       m_gdb_client_up->SendPacketAndWaitForResponse("jSignalsInfo", response);
diff --git a/lldb/source/Plugins/Process/Utility/CMakeLists.txt b/lldb/source/Plugins/Process/Utility/CMakeLists.txt
--- a/lldb/source/Plugins/Process/Utility/CMakeLists.txt
+++ b/lldb/source/Plugins/Process/Utility/CMakeLists.txt
@@ -1,18 +1,14 @@
 add_lldb_library(lldbPluginProcessUtility
   AuxVector.cpp
-  FreeBSDSignals.cpp
-  GDBRemoteSignals.cpp
   HistoryThread.cpp
   HistoryUnwind.cpp
   InferiorCallPOSIX.cpp
   LinuxProcMaps.cpp
-  LinuxSignals.cpp
   MemoryTagManagerAArch64MTE.cpp
   NativeProcessSoftwareSingleStep.cpp
   NativeRegisterContextDBReg_arm64.cpp
   NativeRegisterContextDBReg_x86.cpp
   NativeRegisterContextRegisterInfo.cpp
-  NetBSDSignals.cpp
   RegisterContext_x86.cpp
   RegisterContextDarwin_arm.cpp
   RegisterContextDarwin_arm64.cpp
diff --git a/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp b/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp
--- a/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp
+++ b/lldb/source/Plugins/Process/elf-core/ProcessElfCore.cpp
@@ -18,6 +18,7 @@
 #include "lldb/Target/ABI.h"
 #include "lldb/Target/DynamicLoader.h"
 #include "lldb/Target/MemoryRegionInfo.h"
+#include "lldb/Target/Platform.h"
 #include "lldb/Target/Target.h"
 #include "lldb/Target/UnixSignals.h"
 #include "lldb/Utility/DataBufferHeap.h"
@@ -223,9 +224,10 @@
   ArchSpec target_arch = GetTarget().GetArchitecture();
   ArchSpec core_arch(m_core_module_sp->GetArchitecture());
   target_arch.MergeFrom(core_arch);
-  GetTarget().SetArchitecture(target_arch);
- 
-  SetUnixSignals(UnixSignals::Create(GetArchitecture()));
+  GetTarget().SetArchitecture(target_arch, /* set_platform = */ true);
+
+  if (auto platform_sp = GetTarget().GetPlatform())
+    SetUnixSignals(platform_sp->GetUnixSignals());
 
   // Ensure we found at least one thread that was stopped on a signal.
   bool siginfo_signal_found = false;
diff --git a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
--- a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -74,7 +74,7 @@
 
 #include "GDBRemoteRegisterContext.h"
 #include "GDBRemoteRegisterFallback.h"
-#include "Plugins/Process/Utility/GDBRemoteSignals.h"
+#include "Plugins/Platform/gdb-server/GDBRemoteSignals.h"
 #include "Plugins/Process/Utility/InferiorCallPOSIX.h"
 #include "Plugins/Process/Utility/StopInfoMachException.h"
 #include "ProcessGDBRemote.h"
@@ -967,15 +967,13 @@
     MapSupportedStructuredDataPlugins(*supported_packets);
 
   // If connected to LLDB ("native-signals+"), use signal defs for
-  // the remote platform.  If connected to GDB, just use the standard set.
-  if (!m_gdb_comm.UsesNativeSignals()) {
+  // the remote platform (assuming it's available).  If connected to GDB, just
+  // use the standard set.
+  auto platform_sp = GetTarget().GetPlatform();
+  if (!platform_sp || !m_gdb_comm.UsesNativeSignals())
     SetUnixSignals(std::make_shared<GDBRemoteSignals>());
-  } else {
-    PlatformSP platform_sp = GetTarget().GetPlatform();
-    if (platform_sp && platform_sp->IsConnected())
-      SetUnixSignals(platform_sp->GetUnixSignals());
-    else
-      SetUnixSignals(UnixSignals::Create(GetTarget().GetArchitecture()));
+  else {
+    SetUnixSignals(platform_sp->GetUnixSignals());
   }
 }
 
diff --git a/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp b/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
--- a/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
+++ b/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
@@ -206,12 +206,14 @@
                                    arch.GetArchitectureName());
     return error;
   }
-  GetTarget().SetArchitecture(arch, true /*set_platform*/);
+  GetTarget().SetArchitecture(arch, /*set_platform = */ true);
 
   m_thread_list = m_minidump_parser->GetThreads();
   m_active_exception = m_minidump_parser->GetExceptionStream();
 
-  SetUnixSignals(UnixSignals::Create(GetArchitecture()));
+  auto platform_sp = GetTarget().GetPlatform();
+  if (platform_sp)
+    SetUnixSignals(platform_sp->GetUnixSignals());
 
   ReadModuleList();
   if (ModuleSP module = GetTarget().GetExecutableModule())
diff --git a/lldb/source/Target/CMakeLists.txt b/lldb/source/Target/CMakeLists.txt
--- a/lldb/source/Target/CMakeLists.txt
+++ b/lldb/source/Target/CMakeLists.txt
@@ -85,7 +85,6 @@
     lldbInterpreter
     lldbSymbol
     lldbUtility
-    lldbPluginProcessUtility
 
   LINK_COMPONENTS
     Support
diff --git a/lldb/source/Target/Platform.cpp b/lldb/source/Target/Platform.cpp
--- a/lldb/source/Target/Platform.cpp
+++ b/lldb/source/Target/Platform.cpp
@@ -1672,7 +1672,7 @@
 
 const char *Platform::GetCacheHostname() { return GetHostname(); }
 
-const UnixSignalsSP &Platform::GetRemoteUnixSignals() {
+UnixSignalsSP Platform::GetRemoteUnixSignals() {
   static const auto s_default_unix_signals_sp = std::make_shared<UnixSignals>();
   return s_default_unix_signals_sp;
 }
diff --git a/lldb/source/Target/UnixSignals.cpp b/lldb/source/Target/UnixSignals.cpp
--- a/lldb/source/Target/UnixSignals.cpp
+++ b/lldb/source/Target/UnixSignals.cpp
@@ -7,10 +7,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "lldb/Target/UnixSignals.h"
-#include "Plugins/Process/Utility/FreeBSDSignals.h"
-#include "Plugins/Process/Utility/LinuxSignals.h"
-#include "Plugins/Process/Utility/NetBSDSignals.h"
 #include "lldb/Host/HostInfo.h"
+#include "lldb/Target/Platform.h"
 #include "lldb/Utility/ArchSpec.h"
 #include <optional>
 
@@ -29,24 +27,25 @@
     m_description.assign(description);
 }
 
-lldb::UnixSignalsSP UnixSignals::Create(const ArchSpec &arch) {
-  const auto &triple = arch.GetTriple();
-  switch (triple.getOS()) {
-  case llvm::Triple::Linux:
-    return std::make_shared<LinuxSignals>();
-  case llvm::Triple::FreeBSD:
-  case llvm::Triple::OpenBSD:
-    return std::make_shared<FreeBSDSignals>();
-  case llvm::Triple::NetBSD:
-    return std::make_shared<NetBSDSignals>();
-  default:
-    return std::make_shared<UnixSignals>();
+lldb::UnixSignalsSP UnixSignals::CreateForHost() {
+  static lldb::UnixSignalsSP s_unix_signals_sp;
+  if (s_unix_signals_sp)
+    return s_unix_signals_sp;
+
+  auto host_platform_sp = Platform::GetHostPlatform();
+
+  // If we have no host platform, be resilient and use default UnixSignals.
+  if (!host_platform_sp)
+    s_unix_signals_sp = std::make_shared<UnixSignals>();
+  else {
+    s_unix_signals_sp = host_platform_sp->CreateUnixSignals();
+    // If the Host platform cannot create a UnixSignals object, fall back to the
+    // default UnixSignals. This may happen on platforms without a
+    // UnixSignals implementation (e.g. Windows).
+    if (!s_unix_signals_sp)
+      s_unix_signals_sp = std::make_shared<UnixSignals>();
   }
-}
 
-lldb::UnixSignalsSP UnixSignals::CreateForHost() {
-  static lldb::UnixSignalsSP s_unix_signals_sp =
-      Create(HostInfo::GetArchitecture());
   return s_unix_signals_sp;
 }
 
diff --git a/lldb/unittests/Process/gdb-remote/CMakeLists.txt b/lldb/unittests/Process/gdb-remote/CMakeLists.txt
--- a/lldb/unittests/Process/gdb-remote/CMakeLists.txt
+++ b/lldb/unittests/Process/gdb-remote/CMakeLists.txt
@@ -11,7 +11,7 @@
     lldbCore
     lldbHost
     lldbPluginPlatformMacOSX
-    lldbPluginProcessUtility
+    lldbPluginPlatformLinux
     lldbPluginProcessGDBRemote
 
     LLVMTestingSupport
diff --git a/lldb/unittests/Process/gdb-remote/GDBRemoteClientBaseTest.cpp b/lldb/unittests/Process/gdb-remote/GDBRemoteClientBaseTest.cpp
--- a/lldb/unittests/Process/gdb-remote/GDBRemoteClientBaseTest.cpp
+++ b/lldb/unittests/Process/gdb-remote/GDBRemoteClientBaseTest.cpp
@@ -9,7 +9,7 @@
 
 #include "GDBRemoteTestUtils.h"
 
-#include "Plugins/Process/Utility/LinuxSignals.h"
+#include "Plugins/Platform/Linux/LinuxSignals.h"
 #include "Plugins/Process/gdb-remote/GDBRemoteClientBase.h"
 #include "Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.h"
 #include "lldb/Utility/GDBRemote.h"
diff --git a/lldb/unittests/Target/RemoteAwarePlatformTest.cpp b/lldb/unittests/Target/RemoteAwarePlatformTest.cpp
--- a/lldb/unittests/Target/RemoteAwarePlatformTest.cpp
+++ b/lldb/unittests/Target/RemoteAwarePlatformTest.cpp
@@ -35,6 +35,8 @@
   MOCK_METHOD2(ResolveRemoteExecutable,
                std::pair<Status, ModuleSP>(const ModuleSpec &,
                                            const FileSpecList *));
+  MOCK_METHOD0(CreateUnixSignals, lldb::UnixSignalsSP());
+
   Status ResolveRemoteExecutable(
       const ModuleSpec &module_spec, lldb::ModuleSP &exe_module_sp,
       const FileSpecList *module_search_paths_ptr) /*override*/
@@ -61,6 +63,7 @@
                ProcessSP(ProcessAttachInfo &, Debugger &, Target *, Status &));
   MOCK_METHOD0(CalculateTrapHandlerSymbolNames, void());
   MOCK_METHOD0(GetUserIDResolver, UserIDResolver &());
+  MOCK_METHOD0(CreateUnixSignals, lldb::UnixSignalsSP());
 };
 
 namespace {