Mercurial > hg > graal-compiler
view src/os/aix/vm/porting_aix.hpp @ 21458:5e84db779bfe
make sure the arraycopy routines have the right array locations
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Mon, 18 May 2015 14:44:59 -0700 |
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. * */ #include <stddef.h> // Header file to contain porting-relevant code which does not have a // home anywhere else and which can not go into os_<platform>.h because // that header is included inside the os class definition, hence all // its content is part of the os class. // Aix' own version of dladdr(). // This function tries to mimick dladdr(3) on Linux // (see http://linux.die.net/man/3/dladdr) // dladdr(3) is not POSIX but a GNU extension, and is not available on AIX. // // Differences between AIX dladdr and Linux dladdr: // // 1) Dl_info.dli_fbase: can never work, is disabled. // A loaded image on AIX is divided in multiple segments, at least two // (text and data) but potentially also far more. This is because the loader may // load each member into an own segment, as for instance happens with the libC.a // 2) Dl_info.dli_sname: This only works for code symbols (functions); for data, a // zero-length string is returned (""). // 3) Dl_info.dli_saddr: For code, this will return the entry point of the function, // not the function descriptor. typedef struct { const char *dli_fname; // file path of loaded library // void *dli_fbase; const char *dli_sname; // symbol name; "" if not known void *dli_saddr; // address of *entry* of function; not function descriptor; } Dl_info; // Note: we export this to use it inside J2se too #ifdef __cplusplus extern "C" #endif int dladdr(void *addr, Dl_info *info); // The semantics in this file are thus that codeptr_t is a *real code ptr*. // This means that any function taking codeptr_t as arguments will assume // a real codeptr and won't handle function descriptors (eg getFuncName), // whereas functions taking address as args will deal with function // descriptors (eg os::dll_address_to_library_name). typedef unsigned int* codeptr_t; // helper function - given a program counter, tries to locate the traceback table and // returns info from it (like, most importantly, function name, displacement of the // pc inside the function, and the traceback table itself. #ifdef __cplusplus extern "C" #endif int getFuncName( codeptr_t pc, // [in] program counter char* p_name, size_t namelen, // [out] optional: user provided buffer for the function name int* p_displacement, // [out] optional: displacement const struct tbtable** p_tb, // [out] optional: ptr to traceback table to get further information char* p_errmsg, size_t errmsglen // [out] optional: user provided buffer for error messages );