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Re: secureplt breaks ld on Alpha Linux
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From: |
Richard Henderson |
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Subject: |
Re: secureplt breaks ld on Alpha Linux |
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Date: |
Mon, 01 Sep 2014 11:00:00 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 |
On 09/01/2014 08:09 AM, Mikulas Patocka wrote:
> So, what exactly should be done? Can we hack ld so that if filename is
> "libots.so", lazy binding for symbols in this library is turned off
> automatically?
Not hack ld.so.
Modify the libots.so binary such that _OtsZero is STT_NOTYPE. The linker will
not create a plt entry unless the symbol is STT_FUNC.
I see that most of the _Ots symbols are already NOTYPE. I wonder if this is
intentional and _OtsZero just got forgotten, or if it's a happy oversight in
that they forgot to annotate them entirely.
r~