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dwarf information missing. how to rescue?
- From: Shiyao Ma <i at introo dot me>
- To: systemtap at sourceware dot org
- Date: Sat, 1 Apr 2017 16:47:50 +0800
- Subject: dwarf information missing. how to rescue?
- Authentication-results: sourceware.org; auth=none
Hi,
sudo stap -L 'kernel.function("tcp_cong_control")'
gives this mere output:
kernel.function("tcp_cong_control@./net/ipv4/tcp_input.c:3336")
No params, locals are included.
Should I recompile the kernel? if so, with what flags?
I'd like all this functions be probe-able.
Best.