/* * 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 initially based on hotspot / src / os / aix / vm / { loadlib , porting } _ aix . { hpp , cpp } /* * Aix ' own version of dladdr ( ) . * This function tries to mimic 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 sense on AIX */ const char *dli_sname; /* symbol name; "" if not known */ void *dli_saddr; /* address of *entry* of function; not function descriptor; */ #ifdef __cplusplusextern "C" #endif int dladdr(void *addr, Dl_info *info);
Messung V0.5 in Prozent C=67 H=95 G=81
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