105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/*
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* Copyright (c) 2012, 2013 SAP SE. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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// Loadlib_aix.cpp contains support code for analysing the memory
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// layout of loaded binaries in ones own process space.
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//
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// It is needed, among other things, to provide dladdr(3), which is
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// missing on AIX.
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#ifndef OS_AIX_VM_LOADLIB_AIX_HPP
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#define OS_AIX_VM_LOADLIB_AIX_HPP
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#include <stddef.h>
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class outputStream;
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// Struct holds information about a single loaded library module.
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// Note that on AIX, a single library can be spread over multiple
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// uintptr_t ranges on a module base, eg.
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// libC.a(shr3_64.o) or libC.a(shrcore_64.o).
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// Note: all pointers to strings (path, member) point to strings which are immortal.
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struct loaded_module_t {
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// Points to the full path of the lodaed module, e.g.
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// "/usr/lib/libC.a".
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const char* path;
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// Host library name without path
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const char* shortname;
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// Points to the object file (AIX specific stuff)
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// e.g "shrcore_64.o".
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const char* member;
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// Text area from, to
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const void* text;
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size_t text_len;
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// Data area from, to
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const void* data;
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size_t data_len;
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// True if this module is part of the vm.
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bool is_in_vm;
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};
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// This class is a singleton holding a map of all loaded binaries
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// in the AIX process space.
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class LoadedLibraries
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// : AllStatic (including allocation.hpp just for AllStatic is overkill.)
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{
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public:
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// Rebuild the internal module table. If an error occurs, internal module
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// table remains untouched.
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static bool reload();
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// Check whether the given address points into the text segment of a
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// loaded module. Return true if this is the case.
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// Optionally, information about the module is returned (info)
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static bool find_for_text_address (
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const void* p,
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loaded_module_t* info // Optional, leave NULL if not needed.
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);
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// Check whether the given address points into the data segment of a
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// loaded module. Return true if this is the case.
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// Optionally, information about the module is returned (info)
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static bool find_for_data_address (
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const void* p,
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loaded_module_t* info // Optional, leave NULL if not needed.
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);
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// Output debug info
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static void print(outputStream* os);
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};
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#endif // OS_AIX_VM_LOADLIB_AIX_HPP
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