From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Thu, 12 Sep 2019 14:19:47 +0000 (+0200)
Subject: hashmap: don't allow hashmap_type_info table to be optimized away
X-Git-Tag: v246-rc1~193^2~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=43874aa7bb6cf04d8bdc3593b2af05be1e1e97b7;p=thirdparty%2Fsystemd.git

hashmap: don't allow hashmap_type_info table to be optimized away

This makes debugging hashmaps harder, because we can't query the size.  Make
sure that table is always present.
---

diff --git a/src/basic/hashmap.c b/src/basic/hashmap.c
index efbe95bb9e3..bbb75460937 100644
--- a/src/basic/hashmap.c
+++ b/src/basic/hashmap.c
@@ -254,7 +254,7 @@ struct hashmap_type_info {
         unsigned n_direct_buckets;
 };
 
-static const struct hashmap_type_info hashmap_type_info[_HASHMAP_TYPE_MAX] = {
+static _used_ const struct hashmap_type_info hashmap_type_info[_HASHMAP_TYPE_MAX] = {
         [HASHMAP_TYPE_PLAIN] = {
                 .head_size        = sizeof(Hashmap),
                 .entry_size       = sizeof(struct plain_hashmap_entry),