Re: darcs w^x trouble

[Matthias Kilian]

Hi,

On Thu, Sep 01, 2016 at 10:27:24AM +0200, Karel Gardas wrote:
> I'm not sure if USE_WXNEEDED is also applicable to Haskell-based
> ports.

Please forget my previous mail ;-)

Actually it is applicable, because at least haskell programs using
Setup.l?hs (i.e. cabal) are linked with the ld-wrapper script.

And for darcs, the W^X violations comes from the ghc runtime, but
via some c bits in devel/hs-mmap, which is only used by darcs, so
I hope darcs is the only haskell program which this problem.

Ciao,
Kili

Re: darcs w^x trouble

[Matthias Kilian]

Hi,

On Thu, Sep 01, 2016 at 10:27:24AM +0200, Karel Gardas wrote:
> I'm not sure if USE_WXNEEDED is also applicable to Haskell-based
> ports.

Looking at /usr/local/lib/ghc/settings, it isn't. My latest changed
to lang/ghc (rev. 1.141 of lang/ghc/Makefile) added USE_WXNEEDED =
Yes and removed the explicit -Wl,-z,wxneeded from
CONF_GCC_LINKER_OPTS_STAGE{1,2}. The latter was probably wrong.

I'll check this tomorrow and revert the removal of the explicit
-Wl,-z,wxneeded if necessary.

Sorry for the inconvenience.

Ciao,
Kili

Re: darcs w^x trouble

[Karel Gardas]

I'm not sure if USE_WXNEEDED is also applicable to Haskell-based
ports. Anyway, this is more generally GHC's issue than darcs one, as
the issue arise from the GHC's runtime library probably. I would
recommend to read "Haskell wxneeded" thread on this mailing list for
more information about the issue.

On Thu, Sep 1, 2016 at 8:36 AM, Francisco de Borja Lopez Rio
 wrote:
> Hi everybody.
>
> Installed a fresh snapshot:
>
> kern.version=OpenBSD 6.0-current (GENERIC) #2210: Mon Aug 22 09:14:34 MDT 2016
>
> Installed darcs from packages:
>
> pkg_add -i darcs
>
> Every time I try to run "darcs record" (to record some changes in a local
> repo):
>
> darcs: internal error: setExecutable: failed to protect 0x0x2242c5000
>
> (GHC version 7.10.3 for x86_64_unknown_openbsd)
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
>
> Abort trap (core dumped)
>
> And in the logs I can see:
>
> darcs(11893): mprotect W^X violation
>
> Some other commands seem to work just fine (darcs init/add/clone/pull...)
>
> This is a testing env, just a single / partition, marked with wxallowed:
>
> /dev/wd0a on / type ffs (local, wxallowed)
>
> Afterwards, I added "USE_WXNEEDED = yes" to /usr/ports/devel/darcs/Makefile
> and I built darcs from ports. Same result.
>
> There is no MAINTAINER set for this port, anybody that can help a bit with
> this?
>
> Regards.
>
> --
>
> "Do nothing which is of no use." - Miyamoto Musashi
> -
> Francisco de Borja Lopez Rio (bo...@codigo23.net)
> Soluciones Informaticas Codigo23 S.L.U.
> http://www.codigo23.net
>

darcs w^x trouble

[Francisco de Borja Lopez Rio]

Hi everybody.

Installed a fresh snapshot:

kern.version=OpenBSD 6.0-current (GENERIC) #2210: Mon Aug 22 09:14:34 MDT 2016

Installed darcs from packages:

pkg_add -i darcs

Every time I try to run "darcs record" (to record some changes in a local
repo):

darcs: internal error: setExecutable: failed to protect 0x0x2242c5000

(GHC version 7.10.3 for x86_64_unknown_openbsd)
Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Abort trap (core dumped)

And in the logs I can see:

darcs(11893): mprotect W^X violation

Some other commands seem to work just fine (darcs init/add/clone/pull...)

This is a testing env, just a single / partition, marked with wxallowed:

/dev/wd0a on / type ffs (local, wxallowed)

Afterwards, I added "USE_WXNEEDED = yes" to /usr/ports/devel/darcs/Makefile
and I built darcs from ports. Same result.

There is no MAINTAINER set for this port, anybody that can help a bit with
this?

Regards.

--

"Do nothing which is of no use." - Miyamoto Musashi
-
Francisco de Borja Lopez Rio (bo...@codigo23.net)
Soluciones Informaticas Codigo23 S.L.U.
http://www.codigo23.net