Thomas Munro 4c8208c2b0 jit: Fix jit_profiling_support when unavailable.
jit_profiling_support=true captures profile data for Linux perf.  On
other platforms, LLVMCreatePerfJITEventListener() returns NULL and the
attempt to register the listener would crash.

Fix by ignoring the setting in that case.  The documentation already
says that it only has an effect if perf support is present, and we
already did the same for older LLVM versions that lacked support.

No field reports, unsurprisingly for an obscure developer-oriented
setting.  Noticed in passing while working on commit 1a28b4b4.

Backpatch-through: 14
Reviewed-by: Matheus Alcantara <matheusssilv97@gmail.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA%2BhUKGJgB6gvrdDohgwLfCwzVQm%3DVMtb9m0vzQn%3DCwWn-kwG9w%40mail.gmail.com
2025-12-31 14:55:06 +13:00
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2020-02-10 20:47:50 +01:00
2020-02-10 20:47:50 +01:00

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.
Description
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Readme 464 MiB
Languages
C 84.9%
PLpgSQL 6.1%
Perl 4.7%
Yacc 1.2%
Meson 0.7%
Other 2.2%