Index: source/Plugins/Process/Linux/ProcessMonitor.cpp
===================================================================
--- source/Plugins/Process/Linux/ProcessMonitor.cpp
+++ source/Plugins/Process/Linux/ProcessMonitor.cpp
@@ -764,6 +764,9 @@
     const ArchSpec& arch = monitor->GetProcess().GetTarget().GetArchitecture();
     switch(arch.GetMachine())
     {
+#if defined(__i386__) || defined(__x86_64__)
+    // note that struct user used below has field named i387 which is x86-specific
+    // therefore case below should be compiled only for PC
     case llvm::Triple::x86:
     {
         // Find the GS register location for our host architecture.
@@ -790,6 +793,7 @@
         *m_addr = tmp[1];
         break;
     }
+#endif
     case llvm::Triple::x86_64:
         // Read the FS register base.
         m_result = (PTRACE(PTRACE_ARCH_PRCTL, m_tid, m_addr, (void *)ARCH_GET_FS, 0) == 0);