Does anyone have problems with editing the drc.tcl...
# openlaneh
Hieu Bui
11/26/2021, 7:28 AMDoes anyone have problems with editing the drc.tcl in Openlane? I am trying to change srcripts/magic/drc.tcl in openlane source tree but I do not see any change in the log file. Furthermore, I added the code to bypass the DRC checks on SRAM cells but it did not take any effect also.
This is the code that I added to drc.tcl:
Copy code
diff --git a/scripts/magic/drc.tcl b/scripts/magic/drc.tcl
index 5019f2c..d253a36 100755
--- a/scripts/magic/drc.tcl
+++ b/scripts/magic/drc.tcl
@@ -11,7 +11,7 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
-
+puts stdout "Hello world\n"
if { [info exist ::env(MAGIC_DRC_USE_GDS)] && $::env(MAGIC_DRC_USE_GDS) } {
gds read $::env(CURRENT_GDS)
} else {
@@ -32,6 +32,8 @@ set cell_name $::env(DESIGN_NAME)
magic::suspendall
puts stdout "\[INFO\]: Loading $cell_name\n"
flush stdout
+puts stdout "\[INFO\]: Hello world\n"
+flush stdout
load $cell_name
select top cell
drc euclidean onv
Vijayan Krishnan
11/26/2021, 7:55 AMis magic drc enabled?
set ::env(MAGIC_DRC_USE_GDS) "1"
h
Hieu Bui
11/26/2021, 8:55 AMYes, it is set by default.
Hieu Bui
11/26/2021, 9:00 AMI found out the problem. It is set in the caravel makefile that map $OPENLANE_ROOT to /openLANE_flow into the docker image while /openlane is the directory in the image. Therefore, the flow will always execute openlane included in the image.
To run openlane with the source code in $OPENLANE_ROOT, we have to change the makefile to map OPENLANE_ROOT into /openlane in the docker image.
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diff --git a/openlane/Makefile b/openlane/Makefile
index d1ac633..bdea26e 100644
--- a/openlane/Makefile
+++ b/openlane/Makefile
@@ -51,7 +51,8 @@ endif
-u $(shell id -u $(USER)):$(shell id -g $(USER)) \
$(OPENLANE_IMAGE_NAME) sh -c $(OPENLANE_INTERACTIVE_COMMAND);\
else\
- docker run -it -v $(OPENLANE_ROOT):/openLANE_flow \
+ docker run -it -v $(OPENLANE_ROOT):/openlane \
-v $(PDK_ROOT):$(PDK_ROOT) \
-v $(PWD)/..:/project \
-v $(CARAVEL_ROOT):$(CARAVEL_ROOT) \m
Matthew Guthaus
11/26/2021, 5:22 PMThere is a bug in the docker setup:
https://github.com/efabless/caravel-lite/pull/3#issue-1052769003
Matthew Guthaus
11/26/2021, 5:23 PMThe mount point for OpenLane is wrong
Matthew Guthaus
11/26/2021, 5:24 PMComment on that and maybe they'll fix it
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