At the end of every successful user proj example build I get open-source-silicon.dev #caravel

At the end of every successful user_proj_example b...

Jean

10/29/2021, 10:54 PM

At the end of every successful user_proj_example build, I get this odd error message. The build is fine, but...

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[INFO]: Saving Runtime Environment
invalid command name "Errno"
    while executing
"Errno 2"
    ("uplevel" body line 7)
    invoked from within
"uplevel #0 ${cmd}"
    (procedure "set_log" line 3)
    invoked from within
"set_log ::env($index) $escaped_env_var $::env(GLB_CFG_FILE) 1"
    (procedure "save_state" line 9)
    invoked from within
"save_state"
    (procedure "run_non_interactive_mode" line 68)
    invoked from within
"run_non_interactive_mode {*}$argv"
    invoked from within
"if { [info exists flags_map(-interactive)] || [info exists flags_map(-it)] } {
        puts_info "Running interactively"
        if { [info exists arg_values(-file)..."
    (file "/openlane/flow.tcl" line 356)
make: *** [Makefile:43: user_project_wrapper] Error 1

Any ideas?

Mitch Bailey

10/30/2021, 12:02 AM

Hi @User, Looks like

Errno 2

is a

no such file

error in python. Looks like you're in the final

Saving Runtime Environment

routine where

<design>/runs/<tag>/config.tcl

is created. Looks like this

config.tcl

is in somewhat alphabetical order, so if you have a clean run of another design, you could compare and see about where the problem occurs.

Jean

10/30/2021, 2:32 AM

A fresh caravel install does the same. Yes the problem always occurs!

Mitch Bailey

10/30/2021, 5:25 AM

@User Can you post your repo?

Mitch Bailey

10/30/2021, 5:33 AM

Or maybe just your

<design>/config.tcl

and

<design>/runs/<tag>/config.tcl

Jean

10/30/2021, 7:58 AM

https://github.com/miscellaneousbits/caravel-sha3-miner-mpw3.git

Mitch Bailey

10/30/2021, 12:23 PM

@User It appears to work with an older version on openlane

2021.09.30_02.12.16

with

CARAVEL_LITE

What version are you using? For reference, these are the commands I used in

caravel-sha3-miner-mpw3

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make install
make user_project_wrapper

I also tried with

CARAVEL_LITE=0

and that worked too.

Jean

10/30/2021, 3:04 PM

openlane 2021.09.09_03.00.48-8-gebd50be. Installed by default with mpw3a

Mitch Bailey

10/30/2021, 4:12 PM

@User I got a clean result with the current(?) version

ff6eec246a18d007bf450e94f289a460425a2883

Jean

10/30/2021, 4:12 PM

Running that now

Jean

10/30/2021, 4:47 PM

Same thing. With updated openlane (checkout mp3a). make test

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[INFO]: Saving Runtime Environment
invalid command name "Errno"
    while executing
"Errno 2"
    ("uplevel" body line 7)
    invoked from within
"uplevel #0 ${cmd}"
    (procedure "set_log" line 3)
    invoked from within
"set_log ::env($index) $escaped_env_var $::env(GLB_CFG_FILE) 1"
    (procedure "save_state" line 9)
    invoked from within
"save_state"
    (procedure "run_non_interactive_mode" line 68)
    invoked from within
"run_non_interactive_mode {*}$argv"
    invoked from within
"if { [info exists flags_map(-interactive)] || [info exists flags_map(-it)] } {
        puts_info "Running interactively"
        if { [info exists arg_values(-file)..."
    (file "./flow.tcl" line 356)
make: *** [Makefile:214: test] Error 1

Jean

10/30/2021, 4:50 PM

I've been ignoring this and can continue to do so, but this seems odd.

Mitch Bailey

10/30/2021, 5:13 PM

@User Sorry I haven't been much help. I'm confused about how to checkout mp3a. Do you

git checkout tags/mp3a -b mp3a

Jean

10/30/2021, 6:21 PM

cd openlane git checkout mpw-3a

Mitch Bailey

10/31/2021, 6:06 PM

@User Ok, I found it on the efabless repo instead of the OpenRoad repo. However, I still ran to completion with no errors. Does this command give the same results for you?

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$ cat designs/spm/runs/openlane_test/PDK_SOURCES 
-ne openlane 
e8f4a88f668b366f126bba40861153bf478a33c1
-ne skywater-pdk 
c094b6e83a4f9298e47f696ec5a7fd53535ec5eb
-ne open_pdks 
14db32aa8ba330e88632ff3ad2ff52f4f4dae1ad

Jean

11/01/2021, 2:32 PM

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-ne skywater-pdk 
c094b6e83a4f9298e47f696ec5a7fd53535ec5eb
-ne open_pdks 
6c05bc48dc88784f9d98b89d6791cdfd91526676

Mitch Bailey

11/01/2021, 3:42 PM

@User so the

skywater-pdk

matches but the

open_pdks

does not.

6c05bc48dc88784f9d98b89d6791cdfd91526676

is from Sep. 17

14db32aa8ba330e88632ff3ad2ff52f4f4dae1ad

is from Oct. 26 I'll try with the older commit and see if I get the same error message as you.

Mitch Bailey

11/01/2021, 6:05 PM

With the older

open_pdk

, I get the following error on the test

spm

design.

Mitch Bailey

11/01/2021, 6:06 PM

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[INFO ODB-0134] Finished DEF file: /openlane/designs/spm/runs/openlane_test/results/floorplan/spm.floorplan.def
[INFO PDN-0016] Power Delivery Network Generator: Generating PDN
  config: /openlane/scripts/openroad/or_pdn_cfg.tcl
Error: or_pdn_cfg.tcl, 23 can't read "::env(STD_CELL_POWER_PINS)": no such variable
child process exited abnormally

Mitch Bailey

11/01/2021, 10:31 PM

@User I was wondering if you are setting

OPEN_PDKS_COMMIT

before doing

make pdk

? The default should pull the latest, I think. Does

echo $OPEN_PDKS_COMMIT

show anything?

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