hi,
adding support to detect kernel module and use its
mcount_loc section data as function filter.
It's working on my setup, but I fear there might be
kernel configuration where it could fail.
I'm mostly worried about the assumption that there's
always relocation section '.rela__mcount_loc' for
'__mcount_loc' section in kernel modules.
And because the relocation changes addresses, we need
to be sure we compare relative or relocated addresses.
I still need to double check scripts/recordmcount.c
to be sure about that.
Any testing feedback would be great.
thanks,
jirka
---
Jiri Olsa (2):
btf_encoder: Factor filter_functions function
btf_encoder: Detect kernel module ftrace addresses
btf_encoder.c | 142 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------
dutil.c | 16 ++++++++++++++++
dutil.h | 2 ++
3 files changed, 137 insertions(+), 23 deletions(-)
