Re: Building Ada System DLLs

On Saturday, June 3, 2017 2:21 PM, Keith Marshall wrote:
1

>On 03/06/17 16:47, David Gressett wrote:
>>> I note that "make install-strip" does not strip these DLLs; should
>>> it?  (Ditto, for libgcc_s_dw2-1.dll).
>>
>> No, stripping an Ada DLL will cause it to lose its relocatability.

>Why?  I don't understand.  Surely all Windows DLLs are inherently
>relocatable?  Stripping doesn't modify the relocation tables, so why
>would it have any such effect?

It has been several years since I looked at the Gnat user's guide,
so I went back to it to double-check my memory. It is indeed
documented in  the Gnat user's guide that stripping will cause
problems. In section 9.3.5.12 of the Gnat user's guide:

"Note that a relocatable DLL stripped using the strip binutils 
tool will not be relocatable anymore. To build a DLL without
debug information pass -largs -s to gnatdll. This restriction 
does not apply to a DLL built using a Library Project."

I have no idea at present as to whether the part of the  makefile 
that builds the gnat runtime invokes a library project or not;
I would have to dig through the build log to find out, and I have
not done that yet.


- --
Regards,
Keith.

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