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Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 0eec8d2..8bbb316 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -2366,6 +2366,19 @@ for the function even if it appears that the function is not referenced. This is useful, for example, when the function is referenced only in inline assembly. +@item version_id +@cindex @code{version_id} attribute on IA64 HP-UX +This attribute, attached to a global variable or function, renames a +symbol to contain a version string, thus allowing for function level +versioning. HP-UX system header files may use version level functioning +for some system calls. + +@smallexample +extern int foo () __attribute__((version_id ("20040821"))); +@end smallexample + +Calls to @var{foo} will be mapped to calls to @var{foo@{20040821@}}. + @item visibility ("@var{visibility_type}") @cindex @code{visibility} attribute This attribute affects the linkage of the declaration to which it is attached. |