Hi - On Mon, Jul 28, 2014 at 09:10:04AM -0400, Theodore Ts'o wrote: > [...] > I thought Markus told us that -fno-var-tracking-assignments makes > absolutely no difference for non-debug kernels?
It does affect CONFIG_DEBUG_INFO kernels, and that config option is set for all Red Hat kernels (-debug or plain). > [...] Is there some equivalent signalling system that gcc could use > [...] I'm not aware of anything trivial like a gcc --report-fixed-PRs kind of thing. But, kbuild could conceivably have a run-time test involving test-running gcc with in that compare-debug mode with a suitable test case. We use the latter technique in systemtap for auto-configuring to kernel versions/features; we got the $(CHECK_BUILD) trick from vmware module makefiles. It could be recast as a variant of $(cc-option ...). - FChE -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
