Messages in this thread | | | Date | Mon, 21 Mar 2022 09:59:17 +0100 | Subject | Re: [RFC PATCH 3/3] objtool/mcount: Add powerpc specific functions | From | Christophe Leroy <> |
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Le 21/03/2022 à 09:30, Christophe Leroy a écrit : > > > Le 21/03/2022 à 08:56, Christophe Leroy a écrit : >> >> >> Le 21/03/2022 à 03:27, Michael Ellerman a écrit : >>> Christophe Leroy <christophe.leroy@csgroup.eu> writes: >>>> Le 18/03/2022 à 13:26, Peter Zijlstra a écrit : >>>>> On Fri, Mar 18, 2022 at 04:21:40PM +0530, Sathvika Vasireddy wrote: >>>>>> This patch adds powerpc specific functions required for >>>>>> 'objtool mcount' to work, and enables mcount for ppc. >>>>> >>>>> I would love to see more objtool enablement for Power :-) >>>> >>>> I have not received this series and I can't see it on powerpc patchwork >>>> either (https://patchwork.ozlabs.org/project/linuxppc-dev/list/) >>>> >>>> Did you send it to linuxppc-dev list ? If not can you resend it there ? >>> >>> It is there, might have been delayed? >>> >>> http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=291129 >>> >>> There are some CI failures. >>> >> >> On PPC32 I get : >> >> [ 0.000000] ftrace: No functions to be traced? >> >> Without this series I get: >> >> [ 0.000000] ftrace: allocating 22508 entries in 17 pages >> [ 0.000000] ftrace: allocated 17 pages with 2 groups >> >> > > > ppc64_defconfig on QEMU: > > [ 0.000000][ T0] ftrace: No functions to be traced? > > Without your series: > > [ 0.000000][ T0] ftrace: allocating 38750 entries in 15 pages > [ 0.000000][ T0] ftrace: allocated 15 pages with 4 groups > [ 0.000000][ T0] trace event string verifier disabled >
ppc64le_defconfig on QEMU:
[ 0.000000][ T0] ftrace: allocating 37236 entries in 14 pages [ 0.000000][ T0] ftrace: allocated 14 pages with 3 groups
Without your series:
[ 0.000000][ T0] ftrace: allocating 37236 entries in 14 pages [ 0.000000][ T0] ftrace: allocated 14 pages with 3 groups
So it seems it works only on Little Endian. Works neither on PPC32 nor on PPC64 Big Endian
Christophe
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