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Re: Any rescue other than recompiling the kernel when the kernel function is inlined?
- From: Shiyao Ma <i at introo dot me>
- To: Arkady <arkady dot miasnikov at gmail dot com>
- Cc: systemtap at sourceware dot org
- Date: Thu, 6 Apr 2017 00:23:21 +0800
- Subject: Re: Any rescue other than recompiling the kernel when the kernel function is inlined?
- Authentication-results: sourceware.org; auth=none
- References: <CAJQX3Dwc9RTpw37b-RYTjWYV_9J7g6hQg1hwaV=+vwQQOHhGzw@mail.gmail.com> <CANA-60ptB+wjU4=bSt5cJi7FHMHN5j0Kv3eDF_waFzRsyfsswQ@mail.gmail.com>
Thanks.
> The problem is that due to a
> compilation flag there is no debug information for the specific inline
> function in the specific kernel build (if my understanding is
> correct).
Yes. fche says it's related to `f-var-tracking-assignments'.
Since it's only related to dwarf, I'd guess it's feasible to recompile
a kernel and use staprun on the product machine.
Best.