Dynamically loading custom passes with gollvm?

[Balamurugan Marimuthu]

Hi there,

I see I can invoke the following and see the steps 'go build' is doing.

% go build -work -x mypackage.go 1> transcript.txt 2>&1

I struggle to understand how can I load my custom pass created as a shared library?

I was looking for something like this which is done with Clang:

clang -Xclang -load -Xclang build/skeleton/libSkeletonPass.* something.c

Is my understanding correct? Any help/pointers will be really helpful. 

Thanks! 

[Ian Lance Taylor]

Perhaps you are looking for something like

go build -gccgoflags="-Xclang -load -Xclang
build/skeleton/libSkeletonPass.*"

Ian

[Balamurugan Marimuthu]

Yes, something like that! I basically want to run my custom pass as I compile using 'go build'

 But looks like llvm-goc doesn't support the -Xclang option

$ go build -gccgoflags="-Xclang -load -Xclang ../passes/FunctionInsertPass.so" cache_main.go
# command-line-arguments
/gollvm/install/bin/llvm-goc: error: unrecognized command line option '-Xclang'
/gollvm/install/bin/llvm-goc: error: unrecognized command line option '-Xclang'

Is there a way to load my custom pass as part of 'go build'?

Thanks!

[Than McIntosh]

Hello,

At the moment gollvm doesn't support anything like the "-Xclang -load -Xclang ...". 

It would not be too hard to add this though. Want to send a patch?

Thanks, Than

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[Than McIntosh]

>>>>It would not be too hard to add this though. Want to send a patch?

>>>>

>>Ohh! Yes please, that'll be very helpful for our experiments.

>>Thank you so much.

I think you misunderstood my comment. I was asking if you would like to send a patch yourself.

Thanks, Than

On Mon, Apr 11, 2022 at 10:02 PM Balamurugan M <bala...@gmail.com> wrote:

Hi!

Ohh! Yes please, that'll be very helpful for our experiments.

Thank you so much.

Regards