| /* |
| * Copyright 2012, 2013 SAP AG. 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 a dladdr() emulation, because |
| // that one is not provided by AIX |
| |
| #ifndef OS_AIX_VM_LOADLIB_AIX_HPP |
| #define OS_AIX_VM_LOADLIB_AIX_HPP |
| |
| class outputStream; |
| |
| // This class holds information about a single loaded library module. |
| // Note that on AIX, a single library can be spread over multiple |
| // uintptr_t range on a module base, eg. |
| // libC.a(shr3_64.o) or libC.a(shrcore_64.o). |
| class LoadedLibraryModule { |
| |
| friend class LoadedLibraries; |
| |
| char fullpath[512]; // eg /usr/lib/libC.a |
| char shortname[30]; // eg libC.a |
| char membername[30]; // eg shrcore_64.o |
| const unsigned char* text_from; |
| const unsigned char* text_to; |
| const unsigned char* data_from; |
| const unsigned char* data_to; |
| |
| public: |
| |
| const char* get_fullpath() const { |
| return fullpath; |
| } |
| const char* get_shortname() const { |
| return shortname; |
| } |
| const char* get_membername() const { |
| return membername; |
| } |
| |
| // text_from, text_to: returns the range of the text (code) |
| // segment for that module |
| const unsigned char* get_text_from() const { |
| return text_from; |
| } |
| const unsigned char* get_text_to() const { |
| return text_to; |
| } |
| |
| // data_from/data_to: returns the range of the data |
| // segment for that module |
| const unsigned char* get_data_from() const { |
| return data_from; |
| } |
| const unsigned char* get_data_to() const { |
| return data_to; |
| } |
| |
| // returns true if the |
| bool is_in_text(const unsigned char* p) const { |
| return p >= text_from && p < text_to ? true : false; |
| } |
| |
| bool is_in_data(const unsigned char* p) const { |
| return p >= data_from && p < data_to ? true : false; |
| } |
| |
| // output debug info |
| void print(outputStream* os) const; |
| |
| }; // end LoadedLibraryModule |
| |
| // 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.) |
| { |
| |
| private: |
| |
| enum {MAX_MODULES = 100}; |
| static LoadedLibraryModule tab[MAX_MODULES]; |
| static int num_loaded; |
| |
| public: |
| |
| // rebuild the internal table of LoadedLibraryModule objects |
| static void reload(); |
| |
| // checks whether the address p points to any of the loaded code segments. |
| // If it does, returns the LoadedLibraryModule entry. If not, returns NULL. |
| static const LoadedLibraryModule* find_for_text_address(const unsigned char* p); |
| |
| // checks whether the address p points to any of the loaded data segments. |
| // If it does, returns the LoadedLibraryModule entry. If not, returns NULL. |
| static const LoadedLibraryModule* find_for_data_address(const unsigned char* p); |
| |
| // output debug info |
| static void print(outputStream* os); |
| |
| }; // end LoadedLibraries |
| |
| |
| #endif // OS_AIX_VM_LOADLIB_AIX_HPP |