perf scripts python: export-to-postgresql.py: Fix struct.pack() int argument

Python 3.8 is requiring that arguments being packed as integers are also integers. Add int() accordingly. Before: $ perf record -e intel_pt//u uname $ perf script --itrace=bep -s ~/libexec/perf-core/scripts/python/export-to-postgresql.py perf_data_db branches calls 2020-06-25 16:09:10.547256 Creating database... 2020-06-25 16:09:10.733185 Writing to intermediate files... Traceback (most recent call last): File "/home/ahunter/libexec/perf-core/scripts/python/export-to-postgresql.py", line 1106, in synth_data cbr(id, raw_buf) File "/home/ahunter/libexec/perf-core/scripts/python/export-to-postgresql.py", line 1058, in cbr value = struct.pack("!hiqiiiiii", 4, 8, id, 4, cbr, 4, MHz, 4, percent) struct.error: required argument is not an integer Fatal Python error: problem in Python trace event handler Python runtime state: initialized Current thread 0x00007f35d3695780 (most recent call first): <no Python frame> Aborted (core dumped) After: $ dropdb perf_data_db $ rm -rf perf_data_db-perf-data $ perf script --itrace=bep -s ~/libexec/perf-core/scripts/python/export-to-postgresql.py perf_data_db branches calls 2020-06-25 16:09:40.990267 Creating database... 2020-06-25 16:09:41.207009 Writing to intermediate files... 2020-06-25 16:09:41.270915 Copying to database... 2020-06-25 16:09:41.382030 Removing intermediate files... 2020-06-25 16:09:41.384630 Adding primary keys 2020-06-25 16:09:41.541894 Adding foreign keys 2020-06-25 16:09:41.677044 Dropping unused tables 2020-06-25 16:09:41.703761 Done

AHAdrian Hunter committed 6 years ago