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Re: [PATCH 0/3] explicit_bzero v5
On Nov 16 2016, Zack Weinberg <zackw@panix.com> wrote:
> On 11/16/2016 09:58 AM, Andreas Schwab wrote:
>> On Nov 16 2016, Zack Weinberg <zackw@panix.com> wrote:
>>
>>> This doesn't fully resolve the question in my head, though. The case
>>> we're discussing is an impl-namespace symbol __explicit_bzero, which is
>>> functionally identical to a public symbol explicit_bzero, and not
>>> expected ever to change its behavior. It exists, as far as I
>>> understand, _solely_ so that uses of this symbol in libcrypt.so will
>>> resolve to the definition in libc.so even if other objects in the link
>>> interpose on the public symbol.
>>
>> It's a public symbol, so it gets a public version. It does not matter
>> whether the reference is created explicitly or implicitly.
>
> It is not obvious to me that it is a public symbol.
It is used outside of glibc.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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