HAProxy - Load balancer
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Willy Tarreau 7b5654f54a BUILD: re-implement an initcall variant without using executable sections
The current initcall implementation relies on dedicated sections (one
section per init stage) to store the initcall descriptors. Then upon
startup, these sections are scanned from beginning to end and all items
found there are called in sequence.

On platforms like AIX or Cygwin it seems difficult to figure the
beginning and end of sections as the linker doesn't seem to provide
the corresponding symbols. In order to replace this, this patch
simply implements an array of single linked (one per init stage)
which are fed using constructors for each register call. These
constructors are declared static, with a name depending on their
line number in the file, in order to avoid name clashes. The final
effect is the same, except that the method is slightly more expensive
in that it explicitly produces code to register these initcalls :

$ size  haproxy.sections haproxy.constructor
   text    data     bss     dec     hex filename
4060312  249176 1457652 5767140  57ffe4 haproxy.sections
4062862  260408 1457652 5780922  5835ba haproxy.constructor

This mechanism is enabled as an alternative to the default one when
build option USE_OBSOLETE_LINKER is set. This option is currently
enabled by default only on AIX and Cygwin, and may be attempted for
any target which fails to build complaining about missing symbols
__start_init_* and/or __stop_init_*.

Once confirmed as a reliable fix, this will likely have to be backported
to 1.9 where AIX and Cygwin do not build anymore.
2019-04-01 07:43:07 +02:00
.github/ISSUE_TEMPLATE DOC: add github issue templates 2019-01-17 22:53:55 +01:00
contrib BUG/MINOR: contrib/prometheus-exporter: Fix applet accordingly to recent changes 2019-03-27 16:08:32 +01:00
doc DOC: peers: Peers protocol documentation update. 2019-03-26 16:47:28 +01:00
ebtree CLEANUP: fix typos in comments in ebtree 2018-11-18 22:23:15 +01:00
examples [RELEASE] Released version 2.0-dev2 2019-03-26 05:40:51 +01:00
include BUILD: re-implement an initcall variant without using executable sections 2019-04-01 07:43:07 +02:00
reg-tests REGTEST: remove unexpected "nbthread" statement from Lua test cases 2019-03-27 14:15:33 +01:00
scripts REGTEST: script: remove platform-specific assigments of OPTIONS 2019-03-27 14:47:55 +01:00
src BUILD: re-implement an initcall variant without using executable sections 2019-04-01 07:43:07 +02:00
tests CLEANUP: fix a misspell in tests/filltab25.c 2018-11-18 22:23:15 +01:00
.gitignore DOC: split the README into README + INSTALL 2018-12-16 22:30:57 +01:00
CHANGELOG [RELEASE] Released version 2.0-dev2 2019-03-26 05:40:51 +01:00
CONTRIBUTING DOC: Fix typos in README and CONTRIBUTING 2018-11-12 08:54:12 +01:00
INSTALL BUILD: Makefile: remove outdated support for dlmalloc 2019-03-27 14:30:15 +01:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS DOC: fix reference to map files in MAINTAINERS 2018-10-17 04:21:04 +02:00
Makefile BUILD: re-implement an initcall variant without using executable sections 2019-04-01 07:43:07 +02:00
README DOC: split the README into README + INSTALL 2018-12-16 22:30:57 +01:00
ROADMAP DOC: update the roadmap about priority queues 2018-08-10 17:12:04 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.0-dev2 2019-03-26 05:40:51 +01:00
VERSION [RELEASE] Released version 2.0-dev2 2019-03-26 05:40:51 +01:00

The HAProxy documentation has been split into a number of different files for
ease of use.

Please refer to the following files depending on what you're looking for :

  - INSTALL for instructions on how to build and install HAProxy
  - LICENSE for the project's license
  - CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)