RFR: 8228482: fix xlc16/xlclang comparison of distinct pointer types and string literal conversion warnings

[Doerr, Martin]

Hi Matthias,

I wouldn’t say „looks good”, but I think it’s the right thing to do ��
The type casts look correct to fit to the AIX headers.

libodm_aix:
Good. Maybe we should open a new issue for freeing what’s returned by odm_set_path and we could also remove the AIX 5 support.

NetworkInterface.c:
Strange, but ok. Should be reviewed by somebody else in addition.

Other files:
No comments.

Best regards,
Martin


From: ppc-aix-port-dev <ppc-aix-port-dev-bounces at openjdk.java.net> On Behalf Of Baesken, Matthias
Sent: Dienstag, 23. Juli 2019 17:15
To: 'hotspot-dev at openjdk.java.net' <hotspot-dev at openjdk.java.net>; core-libs-dev at openjdk.java.net; net-dev at openjdk.java.net
Cc: 'ppc-aix-port-dev at openjdk.java.net' <ppc-aix-port-dev at openjdk.java.net>
Subject: RFR: 8228482: fix xlc16/xlclang comparison of distinct pointer types and string literal conversion warnings

Hello please review this patch .

It fixes a couple of  xlc16/xlclang warnings  , especially  comparison of distinct pointer types and string literal conversion warnings  .

When building with xlc16/xlclang, we still have a couple of warnings that have to be fixed :
warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
for example :
/nightly/jdk/src/hotspot/os/aix/libodm_aix.cpp:81:18: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
  odmWrapper odm("product", "/usr/lib/objrepos"); // could also use "lpp"
                 ^
/nightly/jdk/src/hotspot/os/aix/libodm_aix.cpp:81:29: warning: ISO C++11 does not allow conversion from string literal to 'char *' [-Wwritable-strings]
  odmWrapper odm("product", "/usr/lib/objrepos"); // could also use "lpp"
                            ^

warning: comparison of distinct pointer types, for example :

/nightly/jdk/src/java.desktop/aix/native/libawt/porting_aix.c:50:14: warning: comparison of distinct pointer types ('void *' and 'char *') [-Wcompare-distinct-pointer-types]
        addr < (((char*)p->ldinfo_textorg) + p->ldinfo_textsize)) {
        ~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



Bug/webrev :


https://bugs.openjdk.java.net/browse/JDK-8228482

http://cr.openjdk.java.net/~mbaesken/webrevs/8228482.1/


Thanks, Matthias