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[Bug ld/11175] ld marks destructor hidden global


From: amodra at gmail dot com
Subject: [Bug ld/11175] ld marks destructor hidden global
Date: 15 Jan 2010 09:37:09 -0000

------- Additional Comments From amodra at gmail dot com  2010-01-15 09:37 
-------
The sysv gabi says: 
"When the link editor combines several relocatable object files, it does not
allow multiple definitions of STB_GLOBAL symbols with the same name. On the
other hand, if a defined global symbol exists, the appearance of a weak symbol
with the same name will not cause an error. The link editor honors the global
definition and ignores the weak ones. Similarly, if a common symbol exists (that
is, a symbol whose st_shndx field holds SHN_COMMON), the appearance of a weak
symbol with the same name will not cause an error. The link editor honors the
common definition and ignores the weak ones."

I interpret "ignores" to mean that whether the weak symbol is present or not,
the end result should be the same.  So I think HJ's 9670 patch to merge
visibilty from the weak symbol to the strong one is totally bogus.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at sources dot   |amodra at gmail dot com
                   |redhat dot com              |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|0000-00-00 00:00:00         |2010-01-15 09:37:08
               date|                            |


http://sourceware.org/bugzilla/show_bug.cgi?id=11175

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