Re: [PATCH] For broken exception handling in GDB on AIX platform

[Nitish Kumar Mishra <mishra dot nitish dot 88 at gmail dot com>]

Hi,
I have opened a defect for the same here:
https://sourceware.org/bugzilla/show_bug.cgi?id=21187

Thanks and Regards,
Nitish K Mishra

On Wed, Mar 1, 2017 at 1:25 PM, Nitish Kumar Mishra
<mishra.nitish.88@gmail.com> wrote:
> Hi,
> The patch is for the broken exception handling in GDB on AIX platform.
> When linked statically with libstdc++ and libgcc on AIX platform, GDB
> is facing broken exception handling issues.
> Following is the error output when GDB is linked statically with
> mentioned libraries: (GDB-7.12.1, built with GCC-6.2, 64 bit mode, AIX
> platform):
>
> # ./gdb
> GNU gdb (GDB) 7.12.1
> Copyright (C) 2017 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "powerpc64-ibm-aix7.2.0.0".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
> <http://www.gnu.org/software/gdb/documentation/>.
> For help, type "help".
> Type "apropos word" to search for commands related to "word".
> (gdb) kill
> terminate called after throwing an instance of 'gdb_exception_RETURN_MASK_ERROR'
> IOT/Abort trap (core dumped)
>
>
> The issue has been discussed here:
> https://sourceware.org/ml/gdb/2017-02/msg00047.html
>
> I have manually built and tested GDB-7.12.1 with this patch on AIX-7.2
> and Ubuntu-16.04 with GCC-6.2 and GCC-4.8.5. On both operating system
> GDB is working fine with the patch. I generated configure file using
> autoconf-2.64.
>
> The attached patch is for configure.ac file in binutils-gdb, in which
> one more option "--disable-staticlib" is implemented to link libstdc++
> and libgcc dynamically.
> I believe this issue is specific to AIX platform.
>
> Please find the attachment for patch file, and ChangeLog file.
>
> Thanks and Regards,
> Nitish K Mishra