Demo package & commands for native-code caching

CacheNative.jl

module CacheNative

using Random

const somearray = [1,2,3]
struct SomeType
    str::String
end

# @noinline ensures these are compiled as stand-alone functions
@noinline function greet(io::IO)
    print(io, "Hello World! sin of a random number is ")
    print(io, sin(rand()))
end
@noinline usesconst() = somearray[2]
@noinline usestype(dest) = push!(dest, SomeType(randstring()))
@noinline uncompiled(io::IO) = print(io, "Too shy to compile")

# Precompilation
let io = IOBuffer()
    Base.Experimental.@force_compile
    greet(io)
    println(usesconst())
    usestype(SomeType[])
end

end # module

gdb_prep.jl

concrete_deps = copy(Base._concrete_dependencies)
for (key, mod) in Base.loaded_modules
    if !(mod === Main || mod === Core || mod === Base)
        push!(concrete_deps, key => Base.module_build_id(mod))
    end
end

using UUIDs
id = Base.PkgId(UUID("7b64b5d0-837b-40ad-8851-c89c95834730"), "CacheNative")
Base.include_package_for_output(id, "/home/tim/tmp/caching_native/CacheNative/src/CacheNative.jl", ["/home/tim/.julia", "/home/tim/src/julia-master/usr/local/share/julia", "/home/tim/src/julia-master/usr/share/julia"], String[], ["/home/tim/tmp/caching_native/CacheNative/Project.toml", "/home/tim/.julia/environments/v1.8/Project.toml", "/home/tim/src/julia-master/usr/share/julia/stdlib/v1.8"], concrete_deps, nothing)

Project.toml

name = "CacheNative"
uuid = "7b64b5d0-837b-40ad-8851-c89c95834730"
authors = ["Tim Holy <tim.holy@gmail.com>"]
version = "0.1.0"

[deps]
Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"