make: silently suppress warnings in read_liberty.tcl

This fixes  and `make gui_open` and also `make floorplan`

Reduce log spam: don't log command that suppresses warning

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/platforms/asap7/liberty_suppressions.tcl

@@ -1,4 +1,4 @@
 # To remove [WARNING STA-1212] from the logs for ASAP7.
 # /OpenROAD-flow-scripts/flow/platforms/asap7/lib/asap7sc7p5t_SIMPLE_RVT_TT_nldm_211120.lib.gz line 13178, timing group from output port.
 # Added following suppress_message
-log_cmd suppress_message STA 1212
+suppress_message STA 1212

flow/scripts/load.tcl

@@ -3,12 +3,6 @@ source $::env(SCRIPTS_DIR)/util.tcl
 source $::env(SCRIPTS_DIR)/report_metrics.tcl
 
 proc load_design { design_file sdc_file } {
-  # Source platform-related Tcl command (initially for suppressing Liberty
-  # warnings
-  if { [env_var_exists_and_non_empty PLATFORM_TCL] } {
-    log_cmd source $::env(PLATFORM_TCL)
-  }
-
   # Read liberty files
   source $::env(SCRIPTS_DIR)/read_liberty.tcl
 

flow/scripts/read_liberty.tcl

@@ -1,3 +1,9 @@
+# Source platform-related Tcl command (initially for suppressing Liberty
+# warnings
+if { [env_var_exists_and_non_empty PLATFORM_TCL] } {
+  source $::env(PLATFORM_TCL)
+}
+
 #Read Liberty
 if { [env_var_exists_and_non_empty CORNERS] } {
   # corners