|
/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
// Loadlib_aix.cpp contains support code for analysing the memory
// layout of loaded binaries in ones own process space.
//
// It is needed, among other things, to provide dladdr(3), which is
// missing on AIX.
#ifndef OS_AIX_LOADLIB_AIX_HPP
#define OS_AIX_LOADLIB_AIX_HPP
#include "misc_aix.hpp"
#include "runtime/os.hpp"
#include <stddef.h>
class outputStream;
// Struct holds information about a single loaded library module.
// Note that on AIX, a single library can be spread over multiple
// uintptr_t ranges on a module base, eg.
// libC.a(shr3_64.o) or libC.a(shrcore_64.o).
// Note: all pointers to strings (path, member) point to strings which are immortal.
struct loaded_module_t {
// Points to the full path of the lodaed module, e.g.
// "/usr/lib/libC.a".
const char* path;
// Host library name without path
const char* shortname;
// Points to the object file (AIX specific stuff)
// e.g "shrcore_64.o".
const char* member;
// Text area from, to
const void* text;
size_t text_len;
// Data area from, to
const void* data;
size_t data_len;
// True if this module is part of the vm.
bool is_in_vm;
// Next item in the list, or NULL if no such item exits
loaded_module_t* next;
};
// This class is a singleton holding a map of all loaded binaries
// in the AIX process space.
class LoadedLibraries
// : AllStatic (including allocation.hpp just for AllStatic is overkill.)
{
public:
// Rebuild the internal module table. If an error occurs, internal module
// table remains untouched.
static bool reload();
// Check whether the given address points into the text segment of a
// loaded module. Return true if this is the case.
// Optionally, information about the module is returned (info)
static bool find_for_text_address (
const void* p,
loaded_module_t* info // Optional, leave NULL if not needed.
);
// Check whether the given address points into the data segment of a
// loaded module. Return true if this is the case.
// Optionally, information about the module is returned (info)
static bool find_for_data_address (
const void* p,
loaded_module_t* info // Optional, leave NULL if not needed.
);
// Output debug info
static void print(outputStream* os);
// Apply the callback to each loaded_module_t in the list
// Return false if module table is empty and cannot be loaded.
static bool for_each(os::LoadedModulesCallbackFunc cb, void* param);
};
#endif // OS_AIX_LOADLIB_AIX_HPP
¤ Dauer der Verarbeitung: 0.31 Sekunden
(vorverarbeitet)
¤
|
Haftungshinweis
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung ist noch experimentell.
|
