> On Sep 17, 2019, at 3:56 AM, Benoit Ganne (bganne) via Lists.Fd.Io > <bganne=cisco....@lists.fd.io> wrote: > >>> AFAIK the default for x86_64 is to omit frame pointer >>> for optimized builds so you probably do not have it in most cases in VPP >>> builds (but I did not check). >>> So when perf tries to interpret random data as frame pointer, this is >>> what you get :) >>> The most reliable (but slowest) should be dwarf. lbr should be the way >>> to go on Intel Haswell and later. >> FWIW, this is being run on the Macchiatobin platform (i.e., aarch64 >> cortex-A72). :) > > My bad. Not sure what is going-on but it looks like gcc also omit fp by > default on aarch64: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84521 > Did you had a chance to try dwarf instead of fp?
It doesn't appear to be an option in my perf binary, unfortunately. Thanks, Chris. > > Ben > -=-=-=-=-=-=-=-=-=-=-=- > Links: You receive all messages sent to this group. > > View/Reply Online (#13997): https://lists.fd.io/g/vpp-dev/message/13997 > Mute This Topic: https://lists.fd.io/mt/34128898/1826170 > Group Owner: vpp-dev+ow...@lists.fd.io > Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [cho...@chopps.org] > -=-=-=-=-=-=-=-=-=-=-=-
signature.asc
Description: Message signed with OpenPGP
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#14005): https://lists.fd.io/g/vpp-dev/message/14005 Mute This Topic: https://lists.fd.io/mt/34128898/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
