A simple sysdig chisel to try to attach gdb to a short lived process

attachgdb.lua

-- This is a sysdig chisel
description = "attach gdb to a spawned process"
short_description = "attach gdb to a spawned process"
category = "misc"


-- Chisel argument list
args = {}


-- Initialization callback
function on_init()
    -- Request the fileds that we need
    pid = chisel.request_field("proc.pid")
    return true
end


-- Event parsing callback
function on_event()
    if attached ~= true then
        attached = true
        print("attaching gdb to pid " .. evt.field(pid) .. "...")
        os.execute("gdb -p " .. evt.field(pid))
        sysdig.end_capture()
    end
    return true
end