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Re: -fsanitize=thread support on ppc64
> On Jan 23, 2017, at 8:47 AM, Jakub Jelinek <jakub@redhat.com> wrote:
>
> On Mon, Jan 23, 2017 at 08:45:16AM -0600, Bill Schmidt wrote:
>>> 2017-01-23 Jakub Jelinek <jakub@redhat.com>
>>>
>>> * configure.tgt: Enable tsan and lsan on powerpc64{,le}-*-linux*.
>>>
>>> --- libsanitizer/configure.tgt.jj 2016-11-09 15:22:50.000000000 +0100
>>> +++ libsanitizer/configure.tgt 2017-01-23 15:25:21.059399613 +0100
>>> @@ -1,5 +1,5 @@
>>> # -*- shell-script -*-
>>> -# Copyright (C) 2012 Free Software Foundation, Inc.
>>> +# Copyright (C) 2012-2017 Free Software Foundation, Inc.
>>>
>>> # This program is free software; you can redistribute it and/or modify
>>> # it under the terms of the GNU General Public License as published by
>>> @@ -31,6 +31,11 @@ case "${target}" in
>>> fi
>>> ;;
>>> powerpc*-*-linux*)
>>
>> I think you want a separate entry for powerpc64*-*-linux* -- IIRC, the
>> existing code will definitely not work for 32-bit due to TLS differences.
>> Thus be sure we don't enable TSAN for powerpc-*-linux.
>
> That is handled by the
>
>>> + if test x$ac_cv_sizeof_void_p = x8; then
>
> test (similarly how for both i?86-*-linux* and x86_64-*-linux* it is enabled
> only for LP64 multilib and not others). We want to enable it only for the
> 64-bit multilib, not 32-bit.
Ah, quite right. Sorry for the sloppy reading.
Bill
>
>>> + TSAN_SUPPORTED=yes
>>> + LSAN_SUPPORTED=yes
>>> + TSAN_TARGET_DEPENDENT_OBJECTS=tsan_rtl_ppc64.lo
>>> + fi
>>> ;;
>>> sparc*-*-linux*)
>>> ;;
>
> Jakub
>