Added catch around first detailed_placement call so that 4_1_error.odb is written

Signed-off-by: Jeff Ng <[email protected]>

Author: jeffng-or

flow/scripts/cts.tcl

@@ -43,7 +43,13 @@ utl::pop_metrics_stage
 set_placement_padding -global \
   -left $::env(CELL_PAD_IN_SITES_DETAIL_PLACEMENT) \
   -right $::env(CELL_PAD_IN_SITES_DETAIL_PLACEMENT)
-detailed_placement
+
+set result [catch { detailed_placement } msg]
+if { $result != 0 } {
+  save_progress 4_1_error
+  puts "Detailed placement failed in CTS: $msg"
+  exit $result
+}
 
 estimate_parasitics -placement