From: Alan Modra <amodra@gmail.com>
Date: Wed, 28 Aug 2019 14:50:46 +0000 (+0930)
Subject: Segfault in ld building SPEC CPU2017 527.cam4_r with -flto
X-Git-Tag: binutils-2_33~94
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a78fca7b57c5444ac23110c6d0f80abd966f0e90;p=external%2Fbinutils.git

Segfault in ld building SPEC CPU2017 527.cam4_r with -flto

Caused by the PR24406 fix.  unwrap_hash_lookup shouldn't be called
with link_info.wrap_hash NULL.

	PR ld/24406
	* plugin.c (get_symbols): Test link_info.wrap_hash before calling
	unwrap_hash_lookup.
---

diff --git a/ld/ChangeLog b/ld/ChangeLog
index ed646ac..b654eb9 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,9 @@
+2019-08-29  Alan Modra  <amodra@gmail.com>
+
+	PR ld/24406
+	* plugin.c (get_symbols): Test link_info.wrap_hash before calling
+	unwrap_hash_lookup.
+
 2019-08-22  Tamar Christina  <tamar.christina@arm.com>
 
 	PR ld/24601
diff --git a/ld/plugin.c b/ld/plugin.c
index 0344da2..47e5cea 100644
--- a/ld/plugin.c
+++ b/ld/plugin.c
@@ -749,7 +749,7 @@ get_symbols (const void *handle, int nsyms, struct ld_plugin_symbol *syms,
       if (syms[n].def != LDPK_UNDEF && syms[n].def != LDPK_WEAKUNDEF)
 	{
 	  blhe = h;
-	  if (blhe)
+	  if (blhe && link_info.wrap_hash != NULL)
 	    {
 	      /* Check if a symbol is a wrapper symbol.  */
 	      struct bfd_link_hash_entry *unwrap