[Bug target/19520] protected function pointer doesn't work right

[hjl at lucon dot org]

------- Additional Comments From hjl at lucon dot org  2005-01-20 19:28 -------
Depending on the psABI, because of copy relocation on data symbols and
function pointer on function symbols, a protected symbol has to be
treated very carefully. We have to check 2 things:

1. If the psABI uses copy relocation, protected data symbol is the same
as normal symbol.
2. If the psABI doesn't support the "official function address", that is
the psABI guarantee there is one and one only function address, only
branch to functions can be treated as local.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19520