How to trace the functions called by my script？

General Usage
1

Suppose I have a julia script, in which many functions are called. There might be even be nested calling. Namely, the main function calls function A, which calls function B, which in turn calls function C.

How can get a summary of these call relationships?

2

profiling is the easiest way here. I would recommend ProfileView.jl which will give you nice flamegraphs

3

Out of curiosity, is there any function or macro that when called in a certain place returns the call stack as a vector or similar?

4

Might not be exactly what you are after, but my package TraceFuns.jl allows you to see which functions get called from a specific top-level call.

2 Likes
5

That’s really nice.

6

You might be looking for stacktrace():

julia> stacktrace()
14-element Vector{Base.StackTraces.StackFrame}:
 top-level scope at REPL[10]:1
 eval at boot.jl:383 [inlined]
 eval_user_input(ast::Any, backend::REPL.REPLBackend, mod::Module) at REPL.jl:150
 repl_backend_loop(backend::REPL.REPLBackend, get_module::Function) at REPL.jl:246
 start_repl_backend(backend::REPL.REPLBackend, consumer::Any; get_module::Function) at REPL.jl:231
 kwcall(::NamedTuple, ::typeof(REPL.start_repl_backend), backend::REPL.REPLBackend, consumer::Any) at REPL.jl:228
 run_repl(repl::REPL.AbstractREPL, consumer::Any; backend_on_current_task::Bool, backend::Any) at REPL.jl:389
 run_repl(repl::REPL.AbstractREPL, consumer::Any) at REPL.jl:375
 (::Base.var"#1013#1015"{Bool, Bool, Bool})(REPL::Module) at client.jl:432
 #invokelatest#2 at essentials.jl:887 [inlined]
 invokelatest at essentials.jl:884 [inlined]
 run_main_repl(interactive::Bool, quiet::Bool, banner::Bool, history_file::Bool, color_set::Bool) at client.jl:416
 exec_options(opts::Base.JLOptions) at client.jl:333
 _start() at client.jl:552