postgres/src/backend/utils
Michael Paquier 6203583b72 Remove support for Visual Studio 2013
No members of the buildfarm are using this version of Visual Studio,
resulting in all the code cleaned up here as being mostly dead, and
VS2017 is the oldest version still supported.

More versions could be cut, but the gain would be minimal, while
removing only VS2013 has the advantage to remove from the core code all
the dependencies on the value defined by _MSC_VER, where compatibility
tweaks have accumulated across the years mostly around locales and
strtof(), so that's a nice isolated cleanup.

Note that this commit additionally allows a revert of 3154e16.  The
versions of Visual Studio now supported range from 2015 to 2022.

Author: Michael Paquier
Reviewed-by: Juan José Santamaría Flecha, Tom Lane, Thomas Munro, Justin
Pryzby
Discussion: https://postgr.es/m/YoH2IMtxcS3ncWn+@paquier.xyz
2022-07-14 11:22:49 +09:00
..
activity pgstat: slru: remove outdated comment 2022-07-06 15:57:29 -07:00
adt Remove support for Visual Studio 2013 2022-07-14 11:22:49 +09:00
cache Change internal RelFileNode references to RelFileNumber or RelFileLocator. 2022-07-06 11:39:09 -04:00
error Provide log_status_format(), useful for an emit_log_hook. 2022-07-11 12:29:33 -07:00
fmgr Add construct_array_builtin, deconstruct_array_builtin 2022-07-01 11:23:15 +02:00
hash Update copyright for 2022 2022-01-07 19:04:57 -05:00
init Revert 019_replslot_limit.pl related debugging aids. 2022-07-05 11:01:10 -07:00
mb Update copyright for 2022 2022-01-07 19:04:57 -05:00
misc Remove HP-UX port. 2022-07-08 14:05:05 +12:00
mmgr Fix relptr's encoding of the base address. 2022-06-27 11:34:26 +12:00
resowner Remove extraneous blank lines before block-closing braces 2022-04-13 19:16:02 +02:00
sort Invent qsort_interruptible(). 2022-07-12 16:30:36 -04:00
time Fix incorrect logic in HaveRegisteredOrActiveSnapshot(). 2022-04-16 16:04:50 -04:00
.gitignore
errcodes.txt Update copyright for 2022 2022-01-07 19:04:57 -05:00
Gen_dummy_probes.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
Gen_dummy_probes.pl.prolog Update copyright for 2022 2022-01-07 19:04:57 -05:00
Gen_dummy_probes.sed Update copyright for 2022 2022-01-07 19:04:57 -05:00
Gen_fmgrtab.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
generate-errcodes.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
Makefile Correct Makefile dependencies for catalog scripts 2022-02-14 09:07:09 +07:00
probes.d Update copyright for 2022 2022-01-07 19:04:57 -05:00
README.Gen_dummy_probes Tweak generation of Gen_dummy_probes.pl 2021-05-11 20:02:02 -04:00

# Generating dummy probes

If Postgres isn't configured with dtrace enabled, we need to generate
dummy probes for the entries in probes.d, that do nothing.

This is accomplished in Unix via the sed script `Gen_dummy_probes.sed`. We
used to use this in MSVC builds using the perl utility `psed`, which mimicked
sed. However, that utility disappeared from Windows perl distributions and so
we converted the sed script to a perl script to be used in MSVC builds.

We still keep the sed script as the authoritative source for generating
these dummy probes because except on Windows perl is not a hard requirement
when building from a tarball.

So, if you need to change the way dummy probes are generated, first change
the sed script, and when it's working generate the perl script. This can
be accomplished by using the perl utility s2p.

s2p is no longer part of the perl core, so it might not be on your system,
but it is available on CPAN and also in many package systems. e.g.
on Fedora it can be installed using `cpan App::s2p` or
`dnf install perl-App-s2p`.

The Makefile contains a recipe for regenerating Gen_dummy_probes.pl, so all
you need to do is once you have s2p installed is `make Gen_dummy_probes.pl`
Note that in a VPATH build this will generate the file in the vpath tree,
not the source tree.