[PATCH][BZ #15465] Avoid crashing with LD_DEBUG=symbols when program name is unavailable

[Andreas Jaeger]

On 05/14/2013 12:31 PM, Siddhesh Poyarekar wrote:
> Hi,
>
> The program name may be unavailable if the user application tampers
> with argc and argv[].  Some parts of the dynamic linker check this
> while others don't, so this patch consolidates the check and fallback
> into a single macro and updates all users.  I have also added a simple
> test to verify the fix and have also verified that this does not
> result in any regressions in the testsuite.
>
> I have made mechanical changes to architectures other than x86 (even
> in ports), that I haven't tested.  Could the maintainers test and give
> feedback?

Wow, the checking was really inconsistent throughout the code. I 
reviewed the changes and they look fine to me,

Andreas
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