| /* |
| * Copyright (c) 2012, 2018 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| * |
| */ |
| |
| /* |
| * Header file to contain porting-relevant code which does not have a |
| * home anywhere else. |
| * This is intially based on hotspot/src/os/aix/vm/{loadlib,porting}_aix.{hpp,cpp} |
| */ |
| |
| /* |
| * 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; /* doesn't make sence on AIX */ |
| const char *dli_sname; /* symbol name; "" if not known */ |
| void *dli_saddr; /* address of *entry* of function; not function descriptor; */ |
| } Dl_info; |
| |
| #ifdef __cplusplus |
| extern "C" |
| #endif |
| int dladdr(void *addr, Dl_info *info); |