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Re: Fwd: R.F.C. Should we abandon User-land probes?
jamesd wrote:
> [...]
> because systemtap doesn't understand struct/union etc. how would it
> know what are the members of the struct
>
> struct linked_list {
> struct *linked_list prev, next;
There is a germ of truth to something you don't say (a), but said truth
germ is absent in what you do say (b).
(a) Operators for programmatic traversal of link/tree structures have
not yet been defined. If you don't know what this means, you won't
miss it.
(b) Probes for the user-level programs would rely on the debug info
for those programs, in exactly the same way we use kernel debug info
for kernel-level probes. So user-level structs and such should be
exactly as navigable as kernel-level ones.
- FChE