[src/trunk]: src/lib/libc/dlfcn libc: Fix missing membar_consumer in dl_itera...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/26a833bf34bf
branches:  trunk
changeset: 377265:26a833bf34bf
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Tue Jul 04 19:24:25 2023 +0000

description:
libc: Fix missing membar_consumer in dl_iterate_phdr.

Pairs with the existing membar_producer.

XXX pullup-8
XXX pullup-9
XXX pullup-10

diffstat:

 lib/libc/dlfcn/dlfcn_elf.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 9338439eb4da -r 26a833bf34bf lib/libc/dlfcn/dlfcn_elf.c
--- a/lib/libc/dlfcn/dlfcn_elf.c        Tue Jul 04 18:40:14 2023 +0000
+++ b/lib/libc/dlfcn/dlfcn_elf.c        Tue Jul 04 19:24:25 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dlfcn_elf.c,v 1.16 2018/07/13 19:49:47 joerg Exp $     */
+/*     $NetBSD: dlfcn_elf.c,v 1.17 2023/07/04 19:24:25 riastradh Exp $ */
 
 /*
  * Copyright (c) 2000 Takuya SHIOZAKI
@@ -27,7 +27,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: dlfcn_elf.c,v 1.16 2018/07/13 19:49:47 joerg Exp $");
+__RCSID("$NetBSD: dlfcn_elf.c,v 1.17 2023/07/04 19:24:25 riastradh Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include "namespace.h"
@@ -207,6 +207,7 @@ dl_iterate_phdr(int (*callback)(struct d
                membar_producer();
                setup_done = true;
        }
+       membar_consumer();
 
        memset(&phdr_info, 0, sizeof(phdr_info));
        phdr_info.dlpi_addr = dlpi_addr;