Bug 13063

Summary:	Add build-time testing support via qemu-user?
Product:	[Build System, Metadata & Runtime] OE-Core	Reporter:	Ross Burton <ross.burton>
Component:	core	Assignee:	Ross Burton <ross.burton>
Status:	RESOLVED WONTFIX	QA Contact:
Severity:	enhancement
Priority:	Medium+	CC:	anuj.mittal, juro.bystricky, meta.mr.watcher, meta.watcher, randy.macleod
Version:	2.7
Target Milestone:	2.8
Hardware:	x86
OS:	Multiple
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	Yes (doc changes required)

Description Ross Burton 2018-12-05 17:22:11 UTC

Python's profile-guided-optimisation has shown that it's possible to run non-trivial code at build time.

Should we extend this so that recipes can run the target test suite inside a qemu-user? Is this even feasible?  One big caveat is that fork/exec doesn't work correctly unless binfmt_misc is setup.

Comment 1 Ross Burton 2018-12-12 12:04:25 UTC

*** Bug 12724 has been marked as a duplicate of this bug. ***

Comment 2 Ross Burton 2019-04-02 13:01:55 UTC

qemu-user can't fork/exec, the assumption is that binfmt-misc is configured.  We can't assume that so that's a serious blocker for test cases which tend to fork/exec heavily.