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Tom Lane 058c7b5dd4 Allow use of __sync_lock_test_and_set for spinlocks on any machine. If we have no special-case code in s_lock.h for the current platform, but the compiler has __sync_lock_test_and_set, use that instead of failing. It's unlikely that anybody's __sync_lock_test_and_set would be so awful as to be worse than our semaphore-based fallback, but if it is, they can (continue to) use --disable-spinlocks. This allows removal of the RISC-V special case installed by commit `c32fcac56`, which generated exactly the same code but only on that platform. Usefully, the RISC-V buildfarm animals should now test at least the int variant of this patch. I've manually tested both variants on ARM by dint of removing the ARM-specific stanza. We don't want to drop that, because it already has some special knowledge and is likely to grow more over time. Likewise, this is not meant to preclude installing special cases for other arches if that proves worthwhile. Per discussion of a request to install the same code for loongarch64. Like the previous patch, we might as well back-patch to supported branches. Discussion: https://postgr.es/m/761ac43d44b84d679ba803c2bd947cc0@HSMAILSVR04.hs.handsome.com.cn		2022-11-02 17:37:26 -04:00
config	Suppress warning about stack_base_ptr with late-model GCC.	2022-02-17 22:45:34 -05:00
contrib	pg_stat_statements: fetch stmt location/length before it disappears.	2022-11-01 12:48:01 -04:00
doc	Doc: fix outdated wording about parallel seq scans	2022-10-21 09:30:27 +13:00
src	Allow use of __sync_lock_test_and_set for spinlocks on any machine.	2022-11-02 17:37:26 -04:00
.dir-locals.el	Make Emacs perl-mode indent more like perltidy.	2019-01-13 11:32:31 -08:00
.editorconfig	Add .editorconfig	2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs	Backpatch addition of .git-blame-ignore-revs	2022-08-05 19:36:24 +02:00
.gitattributes	gitattributes: Add new entry to silence whitespace error	2021-06-05 07:57:31 +02:00
.gitignore	Support for optimizing and emitting code in LLVM JIT provider.	2018-03-22 11:05:22 -07:00
aclocal.m4	Probe $PROVE not $PERL while checking for modules needed by TAP tests.	2021-11-22 12:54:52 -05:00
configure	Track LLVM 15 changes.	2022-10-19 22:32:14 +13:00
configure.ac	Track LLVM 15 changes.	2022-10-19 22:32:14 +13:00
COPYRIGHT	Update copyright for 2022	2022-01-07 19:04:56 -05:00
GNUmakefile.in	add missing tag from commit `b8c4261e5e`	2021-07-01 15:47:47 -04:00
HISTORY	Canonicalize some URLs	2020-02-10 20:47:50 +01:00
Makefile	Don't unset MAKEFLAGS in non-GNU Makefile.	2019-06-25 09:36:21 +12:00
README	Canonicalize some URLs	2020-02-10 20:47:50 +01:00
README.git	Canonicalize some URLs	2020-02-10 20:47:50 +01:00

README

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/.