Hi,
Please take a look if you agree this is a more compact, less
confusing way of asking for the set of standard BTF features + some
extra features such as 'reproducible_build'.
We have this in perf, for things like:
⬢[acme@toolbox pahole]$ perf report -h -F
Usage: perf report [<options>]
-F, --fields <key[,keys...]>
output field(s): overhead period sample overhead overhead_sys
overhead_us overhead_guest_sys overhead_guest_us overhead_children
sample period weight1 weight2 weight3 ins_lat retire_lat
p_stage_cyc pid comm dso symbol parent cpu socket
srcline srcfile local_weight weight transaction trace
symbol_size dso_size cgroup cgroup_id ipc_null time
code_page_size local_ins_lat ins_lat local_p_stage_cyc
p_stage_cyc addr local_retire_lat retire_lat simd
type typeoff symoff dso_from dso_to symbol_from symbol_to
mispredict abort in_tx cycles srcline_from srcline_to
ipc_lbr addr_from addr_to symbol_daddr dso_daddr locked
tlb mem snoop dcacheline symbol_iaddr phys_daddr data_page_size
blocked
⬢[acme@toolbox pahole]$
>From the 'perf report' man page for '-F':
If the keys starts with a prefix '+', then it will append the specified
field(s) to the default field order. For example: perf report -F +period,sample.
- Arnaldo
Arnaldo Carvalho de Melo (2):
pahole: Factor out routine to process "--btf_features=all"
pahole: Allow asking for extra features using the '+' prefix in
--btf_features
man-pages/pahole.1 | 6 ++++++
pahole.c | 23 ++++++++++++++++-------
tests/reproducible_build.sh | 2 +-
3 files changed, 23 insertions(+), 8 deletions(-)
--
2.44.0
