update(sdk): Export plugin_extract_fields on Windows.

[geraldcombs]

Make sure we set the dllexport attribute on plugin_extract_fields when we're building for Windows.

Signed-off-by: Gerald Combs gerald@wireshark.org

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

Any specific area of the project related to this PR?

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/area build

/area plugin-sdk

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What this PR does / why we need it:

It ensures that plugin_extract_fields is callable on Windows.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[poiana]

Welcome @geraldcombs! It looks like this is your first PR to falcosecurity/plugin-sdk-go 🎉

[poiana]

Hi @geraldcombs. Thanks for your PR.

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[leogr]

/ok-to-test

[poiana]

LGTM label has been added.

Git tree hash: 050bc94542d5a123048c2930bd8b2c90ba2e9990

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: geraldcombs, leogr

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[geraldcombs]

I'm assuming we don't need __declspec(dllexport) for other symbols because CGO already takes care of that.

That appears to be the case. This was the only export missing when comparing the output of dumpbin /exports on Windows with nm on macOS.