Client generation crashes LV on Linux

[CygaLV]

Linux Ubuntu 24
LV Community Edition 2025Q1
Toolkit version : 1.3.0.1

When running the generator to create a client, SerializeProto

proto.zip

file makes LV crashing.
The LV log shows :

#Date: Tue, Apr 29, 2025 04:27:39 PM
#Desc: LabVIEW caught fatal signal
25.1.1f1 - Received SIGSEGV
Reason: address not mapped to object
Attempt to reference address: (nil)
#RCS: unspecified
#OSName: Linux
#OSVers: 6.12.10-76061203-generic
#OSBuild: 396298
#AppName: labview
#Version: 25.1.1f1
#AppKind: FDS
#AppModDate:
0x000075A0DE0D3638 - + 0
0x000075A0DE087AC0 - SerializeReflectionInfo + 50
0x000075A0DE5BCCF8 - + 0

VI call stack:
gRPC Template Creation Utility-release.lvlib:Serialize Proto.vi
gRPC Template Creation Utility-release.lvlib:Proto Parser.vi
gRPC Template Creation Utility-release.lvlib:Main.vi

Proto file used is attached.

I tried to replace the empty string constant with a preinitialized string, but same result.

AB#3111346

[jasonmreding]

If you have a Windows machine available, it would be useful to know if this works there or not. If not, double check the import paths you specified are appropriate such that your import statements for dependent proto files can be found at those root directory locations. For example, with import "opentelemetry/proto/common/v1/common.proto", the parser will need to be able to find a proto file with that relative path from one of the import paths specified. If you didn't specify any import paths, then that is definitely the problem unless your protos all happen to be relative to the directory of the proto file for which you are generating code. This applies recursively, so if the protos you import have their own imports, you need to have local copies of all of the proto files referenced recursively relative to the search paths specified.

If it does work, then there is obviously a Linux specific bug of some sort (maybe a forward slash vs. backslash issue in the path string). I don't believe there are currently any automated tests for the generator on Linux so it likely doesn't get as much testing as Windows. In either case, we should do a better job of handling errors and providing more useful feedback.

[CygaLV]

I've tested on Windows exactly like I do on Linux.
On Win, no crash but I get the error 5015 pointing on missing imports. Which matches your explanation.

On Linux though it still crashes everything.

Here is the error message on Win:
Error 5015 occurred at gRPC Template Creation Utility-release.lvlib:Error 5015.vi

Possible reason(s):

Proto file import - messages ref error
opentelemetry/proto/common/v1/common.proto: -1 - File not found.
opentelemetry/proto/resource/v1/resource.proto: -1 - File not found.
logs.proto: 18 - Import "opentelemetry/proto/common/v1/common.proto" was not found or had errors.
logs.proto: 19 - Import "opentelemetry/proto/resource/v1/resource.proto" was not found or had errors.
logs.proto: 52 - "opentelemetry.proto.resource.v1.Resource" is not defined.
logs.proto: 71 - "opentelemetry.proto.common.v1.InstrumentationScope" is not defined.
logs.proto: 171 - "opentelemetry.proto.common.v1.AnyValue" is not defined.
logs.proto: 176 - "opentelemetry.proto.common.v1.KeyValue" is not defined.

And here the highlighted exec on Win :

We can see that the different functions issue an error that is then 'merged' and interpreted.
On Linux it crashes everything. Instead we should get the same error as on Windows.