flexdll error: cannot relocate RELOC_REL32

[Brian Inglis]

On 2020-03-01 11:35, Cao Qinxiang wrote:
> Dear Cygwin development team and Cygwin experts,
> 
> I use Cygwin-64 on windows and get a fork problem when I try to manually
> install menhir package.
> 
> ----------------
>      0 [main] ocamlrun 1615 child_info_fork::abort: address space needed by
> 'dllunix.so' (0x400000) is already occupied
> /usr/bin/ocamldep.opt -modules menhir.ml > menhir.ml.depends
>       0 [main] ocamlrun 1616 child_info_fork::abort: address space needed
> by 'dllunix.so' (0x400000) is already occupied
> /cygdrive/g/Cygwin/menhir-20190924/src/_stage1/myocamlbuild: "fork" failed:
> Resource temporarily unavailable
> ----------------
> 
> I follow online suggestion to run "/usr/bin/rebaseall -v" using ash.exe.
> However, I get another program after that:
> 
> 
> ----------------
> Fatal error: cannot load shared library dllunix
> Reason: flexdll error: cannot relocate RELOC_REL32, target is too far:
> 0xfffffffc02088b5f  0x2088b5f
> ----------------
> 
> I searched solutions for this new problem. Most solutions are to manually
> rebase dllunix to a lower number like 0x06440000. However, I cannot
> do that. Here is what I get in Cygwin:
> 
> ----------------
> $ rebase -b 0x06440000 /usr/lib/ocaml/stublibs/dllunix.so
> rebase: Invalid Baseaddress 0x06440000, must be > 0x200000000
> ----------------
> 
> So, what should I do to this problem?
> 
> Also, if I did not use "/usr/bin/rebaseall -v" using ash.exe, but follow
> FAQ's suggestion (run "rebase-trigger fullrebase" in Cygwin), then I cannot
> solve the fork problem and still get
> ----------------
>      0 [main] ocamlrun 1615 child_info_fork::abort: address space needed by
> 'dllunix.so' (0x400000) is already occupied
> /usr/bin/ocamldep.opt -modules menhir.ml > menhir.ml.depends
>       0 [main] ocamlrun 1616 child_info_fork::abort: address space needed
> by 'dllunix.so' (0x400000) is already occupied
> /cygdrive/g/Cygwin/menhir-20190924/src/_stage1/myocamlbuild: "fork" failed:
> Resource temporarily unavailable
> ----------------

Run rebase-trigger full then shut down *ALL* Cygwin processes: check Task
Manager Details tab Image path name column for process paths under Cygwin root
and kill.
If rebase-trigger full fails, create /var/cache/rebase/fullrebase.
Then download and run Cygwin setup and let all the postinstall scripts complete.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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