Messages in this thread | | | From | Arnaldo Carvalho de Melo <> | Date | Fri, 30 Aug 2019 16:48:45 -0300 | Subject | Re: [PATCH 0/4] objtool,perf: Use shared x86 insn decoder |
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Em Fri, Aug 30, 2019 at 02:31:09PM -0500, Josh Poimboeuf escreveu: > On Fri, Aug 30, 2019 at 04:00:58PM -0300, Arnaldo Carvalho de Melo wrote: > > I.e. we need to make sure that it always gets the x86 stuff, not > > something that is tied to the host arch, with the patch below we get it > > to work, please take a look. > > > > Probably this should go to the master copy, i.e. to the kernel sources, > > no? > > > > That or we'll have to ask the check-headers.sh and objtool sync-check > > (hey, this should be unified, each project could provide just the list > > of things it uses, but I digress) to ignore those lines... > > > > I.e. we want to decode intel_PT traces on other arches, ditto for > > CoreSight (not affected here, but similar concept). > > > > will kick the full container build process now. > > Interesting, I didn't realize other arches would be using it. The patch
Yeah, decoding CoreSight (aarch64) hardware traces on x86_64 should be as possible as decoding Intel PT hardware traces on aarch64 :-)
> looks good to me. > > Ideally there wouldn't be any differences between the headers, but if > that's unavoidable then I guess we can just use the same 'diff -I' trick
I'll go with this now, but...
> we were using before in the check script(s).
Masami? What do you think of applying the patch to the main kernel sources so that building a decoder for x86 on any other arch becomes possible?
- Arnaldo
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