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Date:      Thu, 11 Sep 2014 19:28:59 -0400
From:      Adam Weinberger <adamw@adamw.org>
To:        Bryan Drewery <bdrewery@FreeBSD.org>
Cc:        svn-ports-head@freebsd.org, svn-ports-all@freebsd.org, Gerald Pfeifer <gerald@pfeifer.com>, ports-committers@freebsd.org
Subject:   Re: svn commit: r367883 - in head: Mk lang/gcc
Message-ID:  <0496640B-F902-401E-B02E-E85506A2FFF5@adamw.org>
In-Reply-To: <54122471.70109@FreeBSD.org>
References:  <201409101909.s8AJ9wpY028698@svn.freebsd.org> <5410AEB5.9050205@FreeBSD.org> <alpine.LSU.2.11.1409102231390.2867@tuna.site> <54122471.70109@FreeBSD.org>

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On 11 Sep, 2014, at 18:38, Bryan Drewery <bdrewery@FreeBSD.org> wrote:

> On 9/10/2014 4:32 PM, Gerald Pfeifer wrote:
>> On Wed, 10 Sep 2014, Bryan Drewery wrote:
>>> Thanks for writing up a summary of changes. Very useful. I learned=20=

>>> about AddressSanitizer being supported.
>>=20
>> You are very welcome!  (I haven't tested AddressSanitizer myself,=20
>> but think I recall a positive report by a user.  If it does not=20
>> work properly we might look into lang/gcc49 or lang/gcc5.)
>=20
> Actually it fails to link. Both clang and gcc complain about missing
> libasan symbols.
>=20
> I find no providers of libasan in any of the gcc, llvm or clang =
packages.
>=20
> It appears it is a submodule of both gcc and clang. So it likely just
> need to be hooked up in the build for gcc.
>=20
> Simple test case:
>=20
> # echo 'int main() {return 0;}'|g++5 -Wall -fsanitize=3Daddress -o
> /dev/null -x c -
> /usr/local/bin/ld: cannot find -lasan
> collect2: error: ld returned 1 exit status

=46rom lang/gcc/work/gcc-4.8.3/libsanitizer/configure.tgt:
case "${target}" in
  x86_64-*-linux* | i?86-*-linux*)
        if test x$ac_cv_sizeof_void_p =3D x8; then
                TSAN_SUPPORTED=3Dyes
        fi
        ;;
  powerpc*le-*-linux*)
        UNSUPPORTED=3D1
        ;;
  powerpc*-*-linux*)
        ;;
  sparc*-*-linux*)
        ;;
  x86_64-*-darwin[1]* | i?86-*-darwin[1]*)
        TSAN_SUPPORTED=3Dno
        ;;
  *)
        UNSUPPORTED=3D1
        ;;
esac

In configure output:
checking for libsanitizer support=85 no

# Adam


--=20
Adam Weinberger
adamw@adamw.org
http://www.adamw.org


>=20
>=20
>>=20
>>=20
>> On a related note, when trying to commit the PORTREVISION bump=20
>> related to this commit, I ended up with:
>>=20
>>  svn: E165001: Commit failed (details follow):
>>  svn: E165001: Commit blocked by pre-commit hook (exit code 1) with =
output:
>>  Do not commit ports with NOPORTDOCS or NOPORTEXAMPLES.
>>  The port must be converted to proper OPTIONS.  See
>>  =
http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/makefile=
-options.html
>>=20
>> Not super helpful since it did not indicate which of the 1000+ ports=20=

>> actually failed this test. ;-)  I could bypass this using Approved:
>> portmgr (implicit).
>>=20
>> Gerald
>>=20
>=20
>=20
> --=20
> Regards,
> Bryan Drewery




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