[Tarantool-patches] [PATCH v3 0/4] fiber: introduce creation backtrace

[eelchinov at tarantool.org]

From: Egor Elchinov <elchinov.es at gmail.com>

This patchset adds the subtable `backtrace_parent()`
to `fiber.info()` holding backtraces of fiber
creation and introduces `fiber.parent_bt_enable()`
and `fiber.parent_bt_disable()` procedures managing
the runtime ability to collect parent backtraces for
newly created fibers.

Changes in v2:
 - first 3 patches merged together
 - unnecessary changes in `ENABLE_BACKTRACE` usages reverted

Changes in v3:
 - strncpy() and snprintf() usages fixed
 - error check for dladdr() under macos added

https://github.com/tarantool/tarantool/issues/4002
https://github.com/tarantool/tarantool/tree/Egor2001/gh-4002-fiber-creation-backtrace

Egor Elchinov (4):
  fiber: add PoC for fiber creation backtrace
  fiber: add option and PoC for Lua parent backtrace
  fiber: refactor lua backtrace routines
  fiber: refactor C backtrace and add changelog

 .../gh-4002-fiber-creation-backtrace.md       |   8 +
 src/lib/core/backtrace.cc                     | 250 +++++++++++++++---
 src/lib/core/backtrace.h                      |  10 +-
 src/lib/core/crash.c                          |   2 +-
 src/lib/core/fiber.c                          |  35 +++
 src/lib/core/fiber.h                          |  34 +++
 src/lua/fiber.c                               | 232 +++++++++++++---
 src/lua/fiber.h                               |  19 ++
 .../gh-4002-fiber-creation-backtrace.result   |  78 ++++++
 .../gh-4002-fiber-creation-backtrace.test.lua |  34 +++
 10 files changed, 631 insertions(+), 71 deletions(-)
 create mode 100644 changelogs/unreleased/gh-4002-fiber-creation-backtrace.md
 create mode 100644 test/app/gh-4002-fiber-creation-backtrace.result
 create mode 100644 test/app/gh-4002-fiber-creation-backtrace.test.lua

-- 
2.31.1