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Re: [PATCH] PR 64256


On February 7, 2015 7:50:38 AM CET, Jeff Law <law@redhat.com> wrote:
>On 02/06/15 19:32, David Edelsohn wrote:
>> After a lot of investigation, I believe that I have learned why stabs
>> debugging on AIX disabled use of continuations.  GDB, IBM DBX and IBM
>> XLDB are able to work with stab string continuations produced by GCC.
>>
>> I am enabling it using definitions that match the behavior of IBM XL
>> compilers to avoid any unexpected behavior and hopefully be able to
>> reproduce any future errors with native tools to expedite fixes.
>> XCOFF32 uses an unsigned short for the stabstring length for a
>maximum
>> length of 64K, but XLC limits the size to 16K.  XLC also uses '?' as
>a
>> continuation character instead of '\\'.  GDB accepts '?' as an
>> alternate continuation character.
>>
>> Bootstrapped on powerpc-ibm-aix7.1.0.0.
>>
>> Committed.
>>
>> Thanks, David
>>
>>          PR debug/2714
>>          PR bootstrap/64256
>>          * xcoffout.h (DBX_CONTIN_LENGTH): Define as 16384.
>>          (DBX_CONTIN_CHAR): Define.
>Well, I thought I was going to have the oldest BZ fixed for this 
>release, but you beat me by a mile.
>
>Glad to see this resolved.

Indeed.  Please also consider back porting this to release branches.

Thanks,
Richard.

>jeff



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