[Bug c/14489] New: alternate keywords for visibility attribute

[Bug c/14489] New: alternate keywords for visibility attribute

[markus+gcc at gyger dot org]

The Sun ONE Studio 8 and Sun Studio 9 compilers on Solaris support the linker
scoping specifiers __global, __hidden and __symbolic which roughly correspond to
gcc's default, hidden and protected visibility attributes. Is there a chance to
have these keywords supported on gcc?  E.g.

__global   void linker_scope_global()   {}
__hidden   void linker_scope_hidden()   {}
__symbolic void linker_scope_symbolic() {}
           void linker_scope_default()  {}

in addition to

__attribute__ ((visibility ("default")))   void linker_scope_global()   {}
__attribute__ ((visibility ("internal")))  void linker_scope_internal() {}
__attribute__ ((visibility ("hidden")))    void linker_scope_hidden()   {}
__attribute__ ((visibility ("protected"))) void linker_scope_symbolic() {}
                                           void linker_scope_default()  {}

The command line option -xldscope={global|hidden|symbolic} allows to set the
default scope. See also:

http://docs.sun.com/source/817-0924/sun.specific.html#83476
http://developers.sun.com/tools/cc/documentation/s1s8cc_documentation/READMEs/c.html#feature13

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           Summary: alternate keywords for visibility attribute
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: markus+gcc at gyger dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: sparc-sun-solaris2.9
  GCC host triplet: sparc-sun-solaris2.9
GCC target triplet: sparc-sun-solaris2.9


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14489

[Bug c/14489] alternate keywords for visibility attribute

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-08 20:42 -------
You can use the preprocessor aka '-D__hidden=__attribute__ ((visibility ("hidden")))' as setting what the 
defualt is, I think there is another bug for that.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14489

[Bug c/14489] alternate keywords for visibility attribute

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-07 02:52 -------
Confirmed, but as I said you can use the preprocessor, just like what cgwin/mgwin does 
for their keywords.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-04-07 02:52:03
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14489

[Bug c/14489] alternate keywords for visibility attribute

[markus+gcc at gyger dot org]

------- Additional Comments From markus+gcc at gyger dot org  2005-05-25 14:15 -------
> http://docs.sun.com/source/817-0924/sun.specific.html#83476
>
http://developers.sun.com/tools/cc/documentation/s1s8cc_documentation/READMEs/c.html#feature13

Updated link for SS10, and a usage article:
http://docs.sun.com/source/819-0494/sun.specific.html#83476
http://developers.sun.com/tools/cc/articles/symbol_scope.html

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14489