[binutils-gdb] Don't handle every plugin symbol as defined.

[Rafael à ¤¥vila de Espà ¤¥à ¤ndola]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a06ed37d755d3bb76c69980f13d22927c8967844

commit a06ed37d755d3bb76c69980f13d22927c8967844
Author: Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
Date:   Thu Mar 3 14:42:21 2016 -0500

    Don't handle every plugin symbol as defined.
    
    Gold was fetching --start-lib/--end-lib members if that member defined
    or used a currently undefined symbol.

Diff:
---
 gold/ChangeLog | 5 +++++
 gold/plugin.cc | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 2d8193a..ca90470 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-03  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
+
+	* plugin.cc (do_should_include_member): Ignore LDPK_UNDEF and
+	LDPK_WEAKUNDEF symbols.
+
 2015-03-03  Evgenii Stepanov  <eugenis@google.com>
 
 	* plugin.h (Pluginobj::get_symbol_resolution_info): Add version
diff --git a/gold/plugin.cc b/gold/plugin.cc
index bb7d6b2..026748f 100644
--- a/gold/plugin.cc
+++ b/gold/plugin.cc
@@ -1179,6 +1179,8 @@ Sized_pluginobj<size, big_endian>::do_should_include_member(
   for (int i = 0; i < this->nsyms_; ++i)
     {
       const struct ld_plugin_symbol& sym = this->syms_[i];
+      if (sym.def == LDPK_UNDEF || sym.def == LDPK_WEAKUNDEF)
+        continue;
       const char* name = sym.name;
       Symbol* symbol;
       Archive::Should_include t = Archive::should_include_member(symtab,