in correct profiling symbol for stripped binary

[wbpcode]

Hello, community,

I encountered an interesting problem when I use the coroot to profile the Envoy sidecar (data plane of Istio service mesh). When a stripped binary is used (most symbols are stripped but some dynamic symbols that required by other dynamic lib/modules are kept), we found the Envoy show lots of envoyGoFilterLogLevel. I check it again and again and finally ensure this method is never be called in the node.

Then, we tried to compiled the envoyGoFilterLogLevel out, we found the luaopen_jit occurs.

I guess this is an error that when the coroot cannot get the correct symbol from the binary, some unrelated symbol will be used to fill the stack.

[wbpcode]

I am not very familiar to the coroot node agent, is there any configure could help improve it? I think even there is no expected symbols, we should show unknown or something rather then unrelated symbols.

Thanks in advance. (And this project is great and helpful, thanks for your great job)

[def]

Thanks @wbpcode, we’ll take a close look at this. It’s definitely unexpected behavior.