81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
// tls.h -- Thread-Local Storage utility routines for gold -*- C++ -*-
|
|
|
|
// Copyright (C) 2006-2022 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.
|
|
|
|
#ifndef GOLD_TLS_H
|
|
#define GOLD_TLS_H
|
|
|
|
#include "elfcpp.h"
|
|
#include "reloc.h"
|
|
|
|
namespace gold
|
|
{
|
|
|
|
namespace tls
|
|
{
|
|
|
|
// This is used for relocations that can be converted to a different,
|
|
// more efficient type of relocation.
|
|
|
|
enum Tls_optimization
|
|
{
|
|
TLSOPT_NONE, // Can not convert this relocation to a more efficient one.
|
|
TLSOPT_TO_LD, // Can convert General Dynamic to Local Dynamic.
|
|
TLSOPT_TO_LE, // Can convert GD or LD to Local-Exec.
|
|
TLSOPT_TO_IE, // Can convert GD or LD or LE to Initial-Exec.
|
|
};
|
|
|
|
// Check the range for a TLS relocation. This is inlined for efficiency.
|
|
|
|
template<int size, bool big_endian>
|
|
inline void
|
|
check_range(const Relocate_info<size, big_endian>* relinfo,
|
|
size_t relnum,
|
|
typename elfcpp::Elf_types<size>::Elf_Addr rel_offset,
|
|
section_size_type view_size, int off)
|
|
{
|
|
typename elfcpp::Elf_types<size>::Elf_Addr offset = rel_offset + off;
|
|
// Elf_Addr is unsigned, so this also tests for signed offset < 0.
|
|
if (offset > view_size)
|
|
gold_error_at_location(relinfo, relnum, rel_offset,
|
|
_("TLS relocation out of range"));
|
|
}
|
|
|
|
// Check the validity of a TLS relocation. This is like assert.
|
|
|
|
template<int size, bool big_endian>
|
|
inline void
|
|
check_tls(const Relocate_info<size, big_endian>* relinfo,
|
|
size_t relnum,
|
|
typename elfcpp::Elf_types<size>::Elf_Addr rel_offset,
|
|
bool valid)
|
|
{
|
|
if (!valid)
|
|
gold_error_at_location(relinfo, relnum, rel_offset,
|
|
_("TLS relocation against invalid instruction"));
|
|
}
|
|
|
|
|
|
} // End namespace tls.
|
|
|
|
} // End namespace gold.
|
|
|
|
#endif // !defined(GOLD_TLS_H)
|