See my reply: http://d.puremagic.com/issues/show_bug.cgi?id=4854
Sean Kelly wrote:
The library code isn't different between OS versions so my guess is that this
is somehow related to object file generation within the compiler.
backend/machobj.c didn't change between May 10th and Jun 11th however, so I'm
not sure what to suggest. If it helps, here are the druntime and DMD timelines
for DMD 2.047:
http://dsource.org/projects/druntime/timeline?from=6%2F11%2F10&daysback=32&wiki=on&changeset=on&milestone=on&ticket=on&update=Update
http://dsource.org/projects/dmd/timeline?from=6%2F11%2F10&daysback=32&wiki=on&changeset=on&milestone=on&ticket=on&update=Update
I don't see anything in the druntime changelog that should affect TLS. The DMD
changelog will take longer to go through though.
On Nov 8, 2010, at 12:33 PM, Jacob Carlborg wrote:
I can reproduce the error using 2.050 on Mac OS X 10.5.8.
On 8 nov 2010, at 20:02, Sean Kelly wrote:
I can't reproduce using 2.050 and OSX 10.6. Is anyone still on 10.5 that can
try this with 2.050?
On Nov 8, 2010, at 3:46 AM, Don Clugston wrote:
Bug 4854. "Regression(2.047, Mac only) writefln Segmentation fault if
no globals" Confirmed by 3 people.
Thread local storage isn't getting set up correctly. Perhaps this
happens when TLS is used in a library, but not in user code.
This behaviour was introduced in 2.047, though it may have been a
latent bug which was only triggered in that release.
This may be a druntime bug, though it is more likely to be a compiler bug.
Although this is OSX-specific, this bug could still be a PR disaster.
Perhaps an OSX user can track down which svn commit triggered the regression.
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--
/Jacob Carlborg
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