On Tue, Jul 13 2021, Matthieu Herrb <matth...@openbsd.org> wrote:
> Hi,
>
> This patch adds riscv64 support to postgresql and postgresql-previous.
> copied from FreeBSD ports.
>
> ok ?

Your patch *looks* fine from a quick glance, it's the same patch that
has been proposed upstream earlier.  But at least Tom Lane (long time
postgres developer) wasn't keen on reusing gcc-style intrinsics.

  First report in 2016:
  https://www.postgresql.org/message-id/flat/20161119230312.ga8...@redhat.com
  Same thread, patch similar to yours:
  https://www.postgresql.org/message-id/20161120150905.GO11243%40redhat.com

  More recent thread, upstream doesn't seem to reach a conclusion:
  
https://www.postgresql.org/message-id/20191019102234.s7utdy44npjqr7in%40alap3.anarazel.de
  https://www.postgresql.org/message-id/16913.1571545387%40sss.pgh.pa.us
  
https://www.postgresql.org/message-id/CA%2BhUKGKnXHpROE%2Bm-Qw006V77Yo9NfTKAW2B-xn7XmDiRwmUZQ%40mail.gmail.com

Your patch is not sufficient since I already committed a workaround for
the lack of spinlock implementation earlier today.  You'd want the
additional diff below (untested).  I have no strong opinion regarding
the approach we should take.


Index: databases/postgresql-previous/Makefile
===================================================================
RCS file: /d/cvs/ports/databases/postgresql-previous/Makefile,v
retrieving revision 1.16
diff -u -p -r1.16 Makefile
--- databases/postgresql-previous/Makefile      12 Jul 2021 07:44:06 -0000      
1.16
+++ databases/postgresql-previous/Makefile      12 Jul 2021 23:40:14 -0000
@@ -3,6 +3,7 @@
 COMMENT=       PostgreSQL RDBMS (previous version, for pg_upgrade)
 
 VERSION=       12.7
+REVIVION=      0
 DISTNAME=      postgresql-${VERSION}
 PKGNAME=       postgresql-previous-${VERSION}
 
@@ -62,7 +63,7 @@ CONFIGURE_ARGS=       --with-openssl=/usr \
 # a system to get this working, disable them for now. There is
 # (apparently) a serious performance hit doing this.
 
-.if ${MACHINE_ARCH} == "alpha" || ${MACHINE_ARCH} == "hppa" || ${MACHINE_ARCH} 
== "riscv64"
+.if ${MACHINE_ARCH} == "alpha" || ${MACHINE_ARCH} == "hppa"
 CONFIGURE_ARGS+=--disable-spinlocks
 .endif
 
Index: databases/postgresql/Makefile
===================================================================
RCS file: /d/cvs/ports/databases/postgresql/Makefile,v
retrieving revision 1.274
diff -u -p -r1.274 Makefile
--- databases/postgresql/Makefile       11 Jul 2021 23:05:06 -0000      1.274
+++ databases/postgresql/Makefile       12 Jul 2021 23:40:26 -0000
@@ -9,7 +9,7 @@ COMMENT-pg_upgrade=Support for upgrading
 
 VERSION=       13.3
 PREV_MAJOR=    12
-REVISION=      0
+REVISION=      1
 DISTNAME=      postgresql-${VERSION}
 PKGNAME-main=  postgresql-client-${VERSION}
 PKGNAME-server=        postgresql-server-${VERSION}
@@ -77,7 +77,7 @@ CONFIGURE_ARGS=       --disable-rpath \
 # a system to get this working, disable them for now. There is
 # (apparently) a serious performance hit doing this.
 
-.if ${MACHINE_ARCH} == "alpha" || ${MACHINE_ARCH} == "hppa" || ${MACHINE_ARCH} 
== "riscv64"
+.if ${MACHINE_ARCH} == "alpha" || ${MACHINE_ARCH} == "hppa"
 CONFIGURE_ARGS+= --disable-spinlocks
 .endif
 


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