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[Bug ld/12760] LTO doesn't work with .gnu.warning section

From: hjl.tools at gmail dot com
Subject: [Bug ld/12760] LTO doesn't work with .gnu.warning section
Date: Mon, 16 May 2011 01:42:08 +0000


--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2011-05-16 01:41:35 
UTC ---
(In reply to comment #5)
> The patch I've committed isn't a full fix, since it results in a warning being
> emitted when the real object file defines the warning symbol.  This is too
> early.  The symbol may not even be referenced in the real object file.

I am using:

diff --git a/ld/ldmain.c b/ld/ldmain.c
index 8647e36..84ac2ae 100644 (file)
--- a/ld/ldmain.c
+++ b/ld/ldmain.c
@@ -1187,7 +1187,7 @@ warning_callback (struct bfd_link_info *info
     einfo ("%P: %s%s\n", _("warning: "), warning);
   else if (symbol == NULL)
     einfo ("%B: %s%s\n", abfd, _("warning: "), warning);
-  else
+  else if ((abfd->flags & BFD_PLUGIN) == 0)
       struct warning_callback_info cinfo;

It doesn't make any senses to issue warning against plugin dummy.

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