Does gold support deadcode elimination on relocatable files

[Neo Jia]

---------
I would remember that if researchers were not ambitious
probably today we haven't the technology we are using!

On Dec 21, 2008, at 11:51 AM, Ian Lance Taylor <iant@google.com> wrote:

> "Neo Jia" <neojia@gmail.com> writes:
>
>>> After the garbage collection patch for executables is committed, it
>>> would be perfectly reasonable to extend it by providing a mechanism
>>> for specifying an explicit root set.  At that time it would be
>>> reasonable to enable garbage collection for relocatable links when a
>>> root set is specified.  This work would not require any significant
>>> changes to the existing garbage collection work.
>>
>> As most relocatable files are used in SDK, can we just use the SDK
>> header files to build the root set?
>
> In general, yes, probably.  But, of course, my quoted paragraph
> remains true.  I'll also note that gold will never have the ability to
> read header files.
>

So, would it be possible to make gold to take a user defined root set?

Thanks,
Neo

> Ian