Messages in this thread | | | Date | Fri, 18 Jul 2008 15:07:54 +0200 | From | Andi Kleen <> | Subject | Re: [RFC] systemtap: begin the process of using proper kernel APIs (part1: use kprobe symbol_name/offset instead of address) |
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> For example, we're about to do unwinding/stack-traces of userspace > programs. To what extent do you think the kernel unwinder (should one > reappear in git) would welcome patches that provide zero benefit to > the kernel, but only enable a peculiar (nonintrusive) sort of > unwinding we would need for complex userspace stacks?
In theory if the tables are right you don't need any special for the kernel dwarf2 unwinder. If the tables are not right fix them.
I believe oprofile did this already in some cases (generating user back traces from the kernel)
-Andi
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