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This is the modern incarnation of DTrace. It is now BPF-based and requires
no out-of-tree code or modules.
i.e. it Just Works with sys-kernel/gentoo-kernel[-hardened,debug] (*).
Please see https://wiki.gentoo.org/wiki/DTrace and report any issues.
There is still some pending work to be done for integration in Gentoo:
* Figuring out collision with dev-debug/systemtap
* Wiring up DTrace/systemtap probe support in more packages
* Deciding on consistent naming/global USE for that support
But the tooling works as-is. Enjoy!
(*) -hardened is needed for now because of CONFIG_GCC_PLUGIN_RANDSTRUCT,
see https://gcc.gnu.org/PR84052. Investigation is ongoing on fixing this.
Signed-off-by: Sam James <sam@gentoo.org>
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