8215731: Move forward class definitions out of globalDefinitions.hpp
Summary: redistribute the forward declarations to the header files that need them.
Reviewed-by: dholmes, lfoltan
/*
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* Copyright (c) 2012, 2013 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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#include "precompiled.hpp"
#if !defined(_WINDOWS) && !defined(__APPLE__)
#include "memory/allocation.inline.hpp"
#include "utilities/elfFuncDescTable.hpp"
ElfFuncDescTable::ElfFuncDescTable(FILE* file, Elf_Shdr shdr, int index) :
_section(file, shdr), _file(file), _index(index) {
assert(file, "null file handle");
// The actual function address (i.e. function entry point) is always the
// first value in the function descriptor (on IA64 and PPC64 they look as follows):
// PPC64: [function entry point, TOC pointer, environment pointer]
// IA64 : [function entry point, GP (global pointer) value]
// Unfortunately 'shdr.sh_entsize' doesn't always seem to contain this size (it's zero on PPC64) so we can't assert
// assert(IA64_ONLY(2) PPC64_ONLY(3) * sizeof(address) == shdr.sh_entsize, "Size mismatch for '.opd' section entries");
_status = _section.status();
}
ElfFuncDescTable::~ElfFuncDescTable() {
}
address ElfFuncDescTable::lookup(Elf_Word index) {
if (NullDecoder::is_error(_status)) {
return NULL;
}
address* func_descs = cached_func_descs();
const Elf_Shdr* shdr = _section.section_header();
if (!(shdr->sh_size > 0 && shdr->sh_addr <= index && index <= shdr->sh_addr + shdr->sh_size)) {
// don't put the whole decoder in error mode if we just tried a wrong index
return NULL;
}
if (func_descs != NULL) {
return func_descs[(index - shdr->sh_addr) / sizeof(address)];
} else {
MarkedFileReader mfd(_file);
address addr;
if (!mfd.has_mark() ||
!mfd.set_position(shdr->sh_offset + index - shdr->sh_addr) ||
!mfd.read((void*)&addr, sizeof(addr))) {
_status = NullDecoder::file_invalid;
return NULL;
}
return addr;
}
}
#endif // !_WINDOWS && !__APPLE__