Existing simpletrace backend allows to trace at max 6 args and does not support strings. This newer tracelog format gets rid of fixed size records and therefore allows to trace variable number of args including strings.
Sample trace: v9fs_version 0.000 tag=0xffff id=0x64 msize=0x2000 version=9P2000.L v9fs_version_return 6.705 tag=0xffff id=0x64 msize=0x2000 version=9P2000.L v9fs_attach 174.467 tag=0x1 id=0x68 fid=0x0 afid=0xffffffffffffffff uname=nobody aname= v9fs_attach_return 4720.454 tag=0x1 id=0x68 type=0xffffffffffffff80 version=0x4f2a4dd0 path=0x220ea6 v2: - moved elimination of st_print_trace to 1/3 patch - use sizeof(TraceRecord) for #define ST_REC_HDR_LEN v1: - Simpletrace v2 for the new (pythonized) tracetool Harsh Prateek Bora (3): monitor: remove unused do_info_trace Simpletrace v2: Add support for multiple args, strings. Update simpletrace.py to support new v2 log format monitor.c | 16 --- scripts/simpletrace.py | 138 +++++++++++++------ scripts/tracetool/backend/simple.py | 84 +++++++++--- trace/simple.c | 247 ++++++++++++++++++++--------------- trace/simple.h | 39 +++++- 5 files changed, 335 insertions(+), 189 deletions(-)
