Mercurial > hg > graal-compiler
view src/os/aix/vm/loadlib_aix.hpp @ 20634:ab72a2f48aef
8062950: Bug in locking code when UseOptoBiasInlining is disabled: assert(dmw->is_neutral()) failed: invariant
Reviewed-by: dholmes, kvn
author | mdoerr |
---|---|
date | Wed, 05 Nov 2014 16:28:11 +0100 |
parents | 666e6ce3976c |
children |
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/* * 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