mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// protected_1.cc -- a test case for gold
|
|
|
|
// Copyright (C) 2008-2017 Free Software Foundation, Inc.
|
|
// Written by Ian Lance Taylor <iant@google.com>.
|
|
|
|
// This file is part of gold.
|
|
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
// MA 02110-1301, USA.
|
|
|
|
// The function f1 is protected, which means that other callers in the
|
|
// same shared library will call this version.
|
|
|
|
int
|
|
f1() __attribute__ ((__visibility__ ("protected")));
|
|
|
|
int
|
|
f1()
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
// The function f2 is used to test that the executable can see the
|
|
// same function address for a protected function in the executable
|
|
// and in the shared library. We can't use the visibility attribute
|
|
// here, becaues that may cause gcc to generate a PC relative reloc;
|
|
// we need it to get the value from the GOT. I'm not sure this is
|
|
// really useful, given that it doesn't work with the visibility
|
|
// attribute. This test exists here mainly because the glibc
|
|
// testsuite has the same test, and we want to make sure that gold
|
|
// passes the glibc testsuite.
|
|
|
|
extern "C" int f2();
|
|
asm(".protected f2");
|
|
|
|
extern "C" int
|
|
f2()
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
int
|
|
(*get_f2_addr())()
|
|
{
|
|
return f2;
|
|
}
|