Re: OCaml + binutils 2.35 on i386
On Wed, Aug 05, 2020 at 09:54:14AM +0200, Florian Weimer wrote:
* Richard W. M. Jones:
> On Tue, Aug 04, 2020 at 01:48:45PM -0600, Jerry James wrote:
>> When ocamlopt is used with binutils 2.35 to link an executable, we now
>> get warnings that look like this:
>>
>> /usr/bin/ld: tests/test_topsort.o: warning: relocation in read-only
>> section `.text'
>> /usr/bin/ld: warning: creating DT_TEXTREL in a PIE
>
> 32 bit is an architectural problem for OCaml. Specifically because of
> how the GC block headers are implemented it limits arrays / strings to
> a maximum of 4M entries / 4M bytes, which was probably fine back in
> the day but is unreasonably small today. [1]
I don't see how this is related to text relocations.
The problem seems to be lack of PIE support in ocamlopt on i386, as
correctly identified by the warning.
I mean any time spent fixing OCaml on 32 bit is time wasted.
If it happens on x86-64 then that's a problem we need to look at.
Rich.
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