diff --git a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
--- a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
+++ b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
@@ -683,6 +683,9 @@
 }
 
 Status ProcessFreeBSD::EnableBreakpointSite(BreakpointSite *bp_site) {
+  if (bp_site->HardwareRequired())
+    return Status("Hardware breakpoints are not supported.");
+
   return EnableSoftwareBreakpoint(bp_site);
 }
 
diff --git a/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp b/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
--- a/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
+++ b/lldb/source/Plugins/Process/MacOSX-Kernel/ProcessKDP.cpp
@@ -644,6 +644,9 @@
 }
 
 Status ProcessKDP::EnableBreakpointSite(BreakpointSite *bp_site) {
+  if (bp_site->HardwareRequired())
+    return Status("Hardware breakpoints are not supported.");
+
   if (m_comm.LocalBreakpointsAreSupported()) {
     Status error;
     if (!bp_site->IsEnabled()) {
diff --git a/lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp b/lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp
--- a/lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp
+++ b/lldb/source/Plugins/Process/Windows/Common/ProcessWindows.cpp
@@ -150,6 +150,9 @@
 uint32_t ProcessWindows::GetPluginVersion() { return 1; }
 
 Status ProcessWindows::EnableBreakpointSite(BreakpointSite *bp_site) {
+  if (bp_site->HardwareRequired())
+    return Status("Hardware breakpoints are not supported.");
+
   Log *log = ProcessWindowsLog::GetLogIfAny(WINDOWS_LOG_BREAKPOINTS);
   LLDB_LOG(log, "bp_site = {0:x}, id={1}, addr={2:x}", bp_site,
            bp_site->GetID(), bp_site->GetLoadAddress());