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* [patch] Use LDPR_PREVAILING_DEF for symbols in -u
@ 2011-02-04 21:21 Rafael Avila de Espindola
  2011-02-04 21:38 ` Ian Lance Taylor
  0 siblings, 1 reply; 2+ messages in thread
From: Rafael Avila de Espindola @ 2011-02-04 21:21 UTC (permalink / raw)
  To: binutils; +Cc: iant, dnovillo

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Using the gold plugin I noticed that symbols passed to -u were still 
reported as LDPR_PREVAILING_DEF_IRONLY. I believe the correct behaviour 
would be to return LDPR_PREVAILING_DEF. This is useful for example for 
letting the linker (and therefore the compiler) know of references that 
exist only in inline assembly.

2010-02-04  Rafael Ávila de Espíndola <respindola@mozilla.com>

	* plugin.cc (is_visible_from_outside): Return true for symbols
	in the -u option.

Cheers,
Rafael

[-- Attachment #2: gold-plugin-u.patch --]
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diff --git a/gold/plugin.cc b/gold/plugin.cc
index 9c444c2..214eff3 100644
--- a/gold/plugin.cc
+++ b/gold/plugin.cc
@@ -699,6 +699,8 @@ is_visible_from_outside(Symbol* lsym)
     return true;
   if (parameters->options().relocatable())
     return true;
+  if (parameters->options().is_undefined(lsym->name()))
+    return true;
   if (parameters->options().export_dynamic() || parameters->options().shared())
     return lsym->is_externally_visible();
   return false;

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [patch] Use LDPR_PREVAILING_DEF for symbols in -u
  2011-02-04 21:21 [patch] Use LDPR_PREVAILING_DEF for symbols in -u Rafael Avila de Espindola
@ 2011-02-04 21:38 ` Ian Lance Taylor
  0 siblings, 0 replies; 2+ messages in thread
From: Ian Lance Taylor @ 2011-02-04 21:38 UTC (permalink / raw)
  To: Rafael Avila de Espindola; +Cc: binutils, dnovillo

Rafael Avila de Espindola <respindola@mozilla.com> writes:

> 2010-02-04  Rafael Ávila de Espíndola <respindola@mozilla.com>
>
> 	* plugin.cc (is_visible_from_outside): Return true for symbols
> 	in the -u option.

This is OK.

Thanks.

Ian

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2011-02-04 21:21 [patch] Use LDPR_PREVAILING_DEF for symbols in -u Rafael Avila de Espindola
2011-02-04 21:38 ` Ian Lance Taylor

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