> Could these odd symbols I'm seeing be the result of link-time > optimization?
We do not do LTO. 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. ben
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