fix(build): don't write to source directory during build

[gnosek]

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?

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

/area API-version

/area build

/area CI

/area driver-kmod

/area driver-bpf

/area driver-modern-bpf

/area libscap-engine-bpf

/area libscap-engine-gvisor

/area libscap-engine-kmod

/area libscap-engine-modern-bpf

/area libscap-engine-nodriver

/area libscap-engine-noop

/area libscap-engine-source-plugin

/area libscap-engine-savefile

/area libscap-engine-udig

/area libscap

/area libpman

/area libsinsp

/area tests

/area proposals

Does this PR require a change in the driver versions?

/version driver-API-version-major

/version driver-API-version-minor

/version driver-API-version-patch

/version driver-SCHEMA-version-major

/version driver-SCHEMA-version-minor

/version driver-SCHEMA-version-patch

What this PR does / why we need it:

This patch makes it possible to build the libs from a read-only directory (like in a container).

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gnosek

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• driver/OWNERS [gnosek]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[Andreagit97]

The fix is completely reasonable! The bpf probe compilation seems broken because we still search this file into the source dir

[FedeDP]

@gnosek can you fix this?

[FedeDP]

/milestone 0.12.0

[FedeDP]

Could be moved to 0.11.0 if Grzeg's response is quick :D

[leogr]

Could we revamp this? 🤔

[FedeDP]

TODO for me: double check that this does not break driverkit builds.

[incertum]

Hi @gnosek and @FedeDP just kindly checking in on the status of this PR. When do you all think we should work on it? Thank you!

[FedeDP]

Well, for #1452 i wrote a patch for driverkit to let it build through CMake: falcosecurity/driverkit#302
Once that is merged, we have no more blockers (driverkit side) for this one.

[FedeDP]

Same goes for #1188 !

[incertum]

Thanks for providing an update @FedeDP 🙏

[poiana]

Issues go stale after 90d of inactivity.

Mark the issue as fresh with /remove-lifecycle stale.

Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Provide feedback via https://github.com/falcosecurity/community.

/lifecycle stale

[leogr]

/remove-lifecycle stale

Hey @gnosek any update on this? 🤔