How to attach multi hooks to an event?

[cigarl]

I want to attach three or more hooks in one event,but i don't know how to load prog in user space by golang.

1. Do I need to call loadBpfObjects and link.xxx once for each hook in main.go? So what's the difference between that and splitting it into multiple events?
2. How to share the MAP in multi hooks? Is the same MAP used by multi hooks?
3. Can i attach multi hooks of different types? Such as attach to kprobe and tracepoint in one event.

I found some examples of kernel space, but no examples of user space.
Any help would be appreciated!

By the way, how do I know what the parameters are for each type of hook function? Such as uretprobe

[ti-mo]

I can only answer your question partly, since you're omitting some key info and I'm not sure what you mean by 'event':

1. You only need to call loadBpfObjects once, you can attach one instance of a bpf program to as many hooks as you'd like (e.g. attach one kprobe-type program to n amount of kernel symbols)
2. As a rule of thumb, within a Collection, all Maps are shared. If you call loadBpfObjects again, that will yield a new Collection, which generally means it gets a new set of Maps. The exception is maps pinned to bpffs, that allows multiple ELF loads to share a single instance of a Map.
3. That again depends, attaching a kprobe-type program to a tracepoint won't work as they require different program types.