[Minios-devel] [UNIKRAFT PATCH v2 0/8] introduce trace points

[Yuri Volchkov <yuri.volchkov@xxxxxxxxx>]

This series brings the functionality of statically declared trace
points.  A declaration is fully static. Information is stored in 2 elf
sections, which are stripped at the final stage of building. This
sections are used only offline by trace.py script, to parse the trace
buffer.

Once a tracepoint is declared, it can be called from runtime. The
tracepoint automatically saves the timestamp, and all passed data into
a tracebuffer.

Depends on:
"include/essentials.h: introduce compile-time assert"
"build: reorganize linking"

changes since v1:
  - merge with series "make trace scripts installable"
  - nummerous typos
  - better namings in python scripts
  - UK_FOREACH counts how many parameters it got autmatically
  - push "-R .uk_trace_keyvals" flag into the right patch (snicked
    into the patch before)
  - update docs to reflect reworked python scripts
  - provide a bit more information in docs about the internals, and
    how to define your own tracepoints

Yuri Volchkov (8):
  lib/ukdebug: trace.h - introduce UK_FOREACH and UK_NARGS macros
  lib/ukdebug: Register a tracepoint
  lib/ukdebug: save actual data into tracebuffer
  lib/ukdebug: key-value static storage for tracing
  support/scripts: fetch trace data from running Unikraft
  support/scripts: implement trace buffer parsing
  support/scripts: make uk-trace installable
  doc/guides: Add section about tracepoints

 .gitignore                           |   1 +
 Makefile                             |  12 +-
 doc/guides/developers-debugging.rst  | 135 +++++++++++++
 lib/ukdebug/Config.uk                |   9 +
 lib/ukdebug/Makefile.uk              |   4 +
 lib/ukdebug/exportsyms.uk            |   2 +
 lib/ukdebug/extra.ld                 |  26 +++
 lib/ukdebug/include/uk/trace.h       | 286 +++++++++++++++++++++++++++
 lib/ukdebug/trace.c                  |  63 ++++++
 support/scripts/uk-gdb.py            | 127 ++++++++++++
 support/scripts/uk_trace/__init__.py |   0
 support/scripts/uk_trace/parse.py    | 208 +++++++++++++++++++
 support/scripts/uk_trace/setup.py    |  14 ++
 support/scripts/uk_trace/trace.py    | 123 ++++++++++++
 14 files changed, 1009 insertions(+), 1 deletion(-)
 create mode 100644 lib/ukdebug/extra.ld
 create mode 100644 lib/ukdebug/include/uk/trace.h
 create mode 100644 lib/ukdebug/trace.c
 create mode 100644 support/scripts/uk-gdb.py
 create mode 100644 support/scripts/uk_trace/__init__.py
 create mode 100644 support/scripts/uk_trace/parse.py
 create mode 100644 support/scripts/uk_trace/setup.py
 create mode 100755 support/scripts/uk_trace/trace.py

-- 
2.19.2


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