[Head/5.3] Build failure on powerpc-aix-4.3.2

[Head/5.3] Build failure on powerpc-aix-4.3.2

[Joel Brobecker]

GDB fails to build aix-thread.c on our AiX 4.3.2 machine. I think this
is because aix-thread.c expects lib pthread debug version 2 or 3, while
we have lib pthread debug version 1 only installed on our 4.3.2 machine.

By contrast, we have version 3 installed on our AiX 5.1 machine.

The comment at the begining of aix-thread.c says that it should work on
4.3+ systems... Has anybody been able to build it on a 4.3.2 machine?
Does anybody have something else than version 1 of the pthread debug
library installed on a 4.3+ system? If you have something else than
version 1, you should see something like this in
/usr/include/sys/pthdebug.h:

     /* The pthread debug library version number.  This is used to maintain
      * binary compatibility.  The initial release of the pthread debug
      * library in AIX 4.3.2, represented by PTHDB_VERSION_1, was a
      * technology only release and binary compatibility with it is not
      * guaranteed.  It is kept in this file for historical perspective
      * only.
      */
     #define PTHDB_VERSION_1 0xa1c432
     #define PTHDB_VERSION_2 0xa1c433
     #define PTHDB_VERSION_3 0xa1c434

Thanks,
-- 
Joel

Re: [Head/5.3] Build failure on powerpc-aix-4.3.2

[Andrew Cagney]

> GDB fails to build aix-thread.c on our AiX 4.3.2 machine. I think this
> is because aix-thread.c expects lib pthread debug version 2 or 3, while
> we have lib pthread debug version 1 only installed on our 4.3.2 machine.
> 
> By contrast, we have version 3 installed on our AiX 5.1 machine.
> 
> The comment at the begining of aix-thread.c says that it should work on
> 4.3+ systems... Has anybody been able to build it on a 4.3.2 machine?
> Does anybody have something else than version 1 of the pthread debug
> library installed on a 4.3+ system? If you have something else than
> version 1, you should see something like this in
> /usr/include/sys/pthdebug.h:
> 
>      /* The pthread debug library version number.  This is used to maintain
>       * binary compatibility.  The initial release of the pthread debug
>       * library in AIX 4.3.2, represented by PTHDB_VERSION_1, was a
>       * technology only release and binary compatibility with it is not
>       * guaranteed.  It is kept in this file for historical perspective
>       * only.
>       */
>      #define PTHDB_VERSION_1 0xa1c432
>      #define PTHDB_VERSION_2 0xa1c433
>      #define PTHDB_VERSION_3 0xa1c434

Check the bug database (including closed).  I know that people have 
reported problems.  Eg:

http://sources.redhat.com/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=344

Andrew

Re: [Head/5.3] Build failure on powerpc-aix-4.3.2

[Joel Brobecker]

> Check the bug database (including closed).  I know that people have
> reported problems.  Eg:

Thanks for the tip. I checked the database, and could not find this
problem reported there. I would open a new PR, but wanted to make sure
that the the pthread debug library version 1 is the only version
available on 4.3.2...

Thinking more about it, though, I am realizing that we should probably
add a configure test that deactivates this code if we detect that the
thread debug library is too ancient... Thoughts?

-- 
Joel

Re: [Head/5.3] Build failure on powerpc-aix-4.3.2

[Kevin Buettner]

On Nov 9, 12:00pm, Joel Brobecker wrote:

> Thinking more about it, though, I am realizing that we should probably
> add a configure test that deactivates this code if we detect that the
> thread debug library is too ancient... Thoughts?

Yes, that sounds right to me.

Kevin