This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: RFA: Skip largefile PCH test on Solaris 10 x86

From: Mark Mitchell <mark at codesourcery dot com>
To: Ian Lance Taylor <iant at google dot com>
Cc: gcc-patches at gcc dot gnu dot org, janis187 at us dot ibm dot com
Date: Tue, 08 May 2007 14:08:23 -0700
Subject: Re: RFA: Skip largefile PCH test on Solaris 10 x86
References: <200705071838.l47Icd2v026399@sparrowhawk.codesourcery.com> <m33b27ztlc.fsf@localhost.localdomain>

Ian Lance Taylor wrote:
> Mark Mitchell <mark@codesourcery.com> writes:
> 
>> As detailed in PR 14940, PCH on Solaris 10 x86 doesn't work very well:
>> there doesn't seem to be any way to get consistent addresses from
>> mmap.  Small PCH tests work, but big ones don't.  In practice, PCH is
>> probably not useful on this platform, but I'm not sure if we have a
>> good way to totally disable it.
> 
> The way to fix this is to add a HOST_HOOKS_GT_PCH_GET_ADDRESS to
> host-solaris.c.  That hook should try to allocate the space in some
> address area that is normally free on Solaris.  See the use of
> TRY_EMPTY_VM_SPACE in host-linux.c.

Ah!  Thanks for the tip.  I've put that in the PR.  I don't know if I'll
get a chance to implement it, but, hopefully, this will help whoever
gets there first.

Thanks!

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713

References:
- RFA: Skip largefile PCH test on Solaris 10 x86
  - From: Mark Mitchell
- Re: RFA: Skip largefile PCH test on Solaris 10 x86
  - From: Ian Lance Taylor

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]