[Bug gas/21661] Ld failed to hide versioned common symbol

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21661

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|ld                          |gas

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
.symver on common symbols shouldn't be allowed:

address@hidden pr21661]$ cat bad.S
        .comm   foo,8,8
        .symver foo,address@hidden
address@hidden pr21661]$ gcc -c bad.S
address@hidden pr21661]$ readelf -s bad.o

Symbol table '.symtab' contains 6 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 0000000000000000     0 SECTION LOCAL  DEFAULT    1 
     2: 0000000000000000     0 SECTION LOCAL  DEFAULT    2 
     3: 0000000000000000     0 SECTION LOCAL  DEFAULT    3 
     4: 0000000000000008     8 OBJECT  GLOBAL DEFAULT  COM foo
     5: 0000000000000008     8 OBJECT  GLOBAL DEFAULT  COM address@hidden
address@hidden pr21661]$ 

foo and address@hidden are 2 different common symbols.

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