I assume libjvm.so has access to dlopen and dlsym? Can the AIX implementation of dladdr live in libjli.so and libjvm.so load it from there?
Chris > On Sep 16, 2016, at 10:34 AM, Volker Simonis <[email protected]> wrote: > > Hi Christoph, > > I think your change is fine as a quick-fix to fix the build. But > you're completely right that this should be reworked in the long term. > I hate to see that we now have the third version of these routines in > the OpenJDK. Unfortunately a clean solution is not trivial. > > libjli is not linked against libjvm because libjli is actually used to > load libjvm. So we can not put the dladdr routines for AIX there. But > I think we should at least consolidate the two versions which will be > in the class library after your change. Initially I intentionally put > porting_aix.{c,h} into jdk/aix/porting with the intent to make it > available to ALL jdk native libraries. > > Unfortunately, with the source code reorganization due to the modular > changes, the common, top-level aix repository had to go away and the > code was moved to src/java.desktop/aix/native/libawt/porting_aix.c. > With the reorganized, modularized source code layout and build system > it is not possible to share code between modules. We somehow have to > fix this although I currently don't know how. IF somebody has an idea, > please let me know :) > > Regarding your change: > > - can you please move > > +#if defined(_AIX) > +#include "java_md_aix.h" > +#endif > + > > from java_md_common.c to the end of > java.base/unix/native/libjli/java_md.h. It will then be automatically > included into java_md_common.c trough java.h which includes java_md.h > > Also, this version of dladdr is inherently not thread safe. I don't > think that's a problem here, but it would be nice if you could quickly > check if that's indeed true. > > Besides that, looks good. > > Thanks for fixing, > Volker > > > > > On Fri, Sep 16, 2016 at 11:58 AM, Langer, Christoph > <[email protected]> wrote: >> Hi, >> >> the fix for https://bugs.openjdk.java.net/browse/JDK-8165524 breaks the AIX >> build as function dladdr is not available on AIX. >> >> There already exist ports of that API in hotspot and awt. With the proposed >> change I duplicate the awt port to libjli. This is maybe only a quick fix - >> eventually we should think about consolidating and using the hotspot port in >> all places by exporting it from libjvm.so for AIX. >> >> Bug: https://bugs.openjdk.java.net/browse/JDK-8166189 >> Webrev: http://cr.openjdk.java.net/~clanger/webrevs/8166189.0/ >> >> Thanks >> Christoph >> >> >>> -----Original Message----- >>> From: core-libs-dev [mailto:[email protected]] On >>> Behalf >>> Of Kumar Srinivasan >>> Sent: Montag, 12. September 2016 22:57 >>> To: core-libs-dev <[email protected]>; Mandy Chung >>> <[email protected]>; Chris Bensen <[email protected]> >>> Subject: RFR: 8165524: Better detect JRE that Linux JLI will be using >>> >>> Hello, >>> >>> I am sponsoring this changeset for Chris Bensen of the java packager >>> team, please review fix for the launcher to better locate java.home. >>> >>> http://cr.openjdk.java.net/~ksrini/8165524/ >>> >>> Thanks >>> Kumar >>
