February 18, 2015 Re: iOS progress | ||||
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Posted in reply to Jacob Carlborg | Jacob Carlborg <doob@me.com> writes: > On 2015-02-17 19:10, Dan Olson wrote: > >> iOS has a stub tlv_initializer() so nothing gets done automatically. I had to change threadLocalVariables.c to include working tlv_initializer for __arm__. > > You can't implement that stub because it's in dyld? Or is it possible to override? My thought would be that libdyld.dylib is statically linked to its __arm__ stubbed tlv_initializer so my modified version can't override. See http://www.opensource.apple.com/source/dyld/dyld-353.2.1/src/dyldAPIsInLibSystem.cpp and http://www.opensource.apple.com/source/dyld/dyld-353.2.1/src/threadLocalVariables.c |
February 21, 2015 Re: iOS progress | ||||
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Posted in reply to Dan Olson | Hi Dan!
On Wednesday, 4 February 2015 at 16:37:05 UTC, Dan Olson wrote:
> Just a quick note. I started again on LDC for iOS a month ago (new years resolution!). I bogged down in floating point and optimizer problems. I think I understand the major issues and have gotten all of phobos unittests to pass with optimizer disabled except for some math unittests that are written for 80-bit floats and some that are off by LSB.
>
> This weekend I'll cleanup the math fixes and put up a new repo on https://github.com/smolt that helps glue it all together.
> --
> Dan
I looked at your sources. I think you should turn the softfp changes and the iOS-ABI into pull requests for ldc.
Regards,
Kai
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February 22, 2015 Re: iOS progress | ||||
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Posted in reply to Kai Nacke | "Kai Nacke" <kai@redstar.de> writes:
> I looked at your sources. I think you should turn the softfp changes and the iOS-ABI into pull requests for ldc.
>
> Regards,
> Kai
The softfp change ok, the iOS abi, not yet. There is at least a C calling convention problem to fix first. A small struct (e.g. struct A {int x;}) should be returned in r0 instead of as an sret.
I still owe you the longdouble changes I needed to get it to compile in my env. I am not using it in my ios branch right now, but I plan to swap to it now that I have a unittest pass/fail baseline.
--
Dan
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February 24, 2015 Re: iOS progress | ||||
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Posted in reply to Dan Olson | On Wednesday, 18 February 2015 at 07:10:18 UTC, Dan Olson wrote: > "Joakim" <dlang@joakim.fea.st> writes: >> I couldn't get most of the phobos unit tests to run on a linux/ARM >> hard-float board, Cubieboard2. I'm guessing the issue is hard-float >> compatibility: I need to try softfp out and make sure. Almost all the >> druntime tests passed on the armhf system though. > > What kinds of errors are you getting? Are they all float related? If > the linux C libs are using -float-abi=hard, then softfp probably won't > help. It's mostly segfaults, several modules segfault when their tests are run. I'm guessing this is because of some ABI issue. I believe most Android/ARM systems are softfp, so testing on linux/ARM-hardfp is probably worthless anyway. I need to try softfp on a softfp system and see what happens. > If you do decide to look at softfp, I have this commit to get the D > versions correct: > > https://github.com/smolt/ldc/commit/5a19080 > > Without that change, -float-abi=softfp sets version ARM_Soft instead of > ARM_SoftFP so std.math ends up incorrectly taking non-FPU paths. OK, will look at that when I get the tests not to segfault. :) |
February 26, 2015 Re: iOS progress | ||||
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Posted in reply to Dan Olson | "Dan Olson" <zans4cans@yahoo.com> writes: > > https://github.com/smolt/ldc-iphone-dev > > This pulls all the pieces together as submodules. I still need to cleanup and add my sample Xcode apps and add some docs, but this should be enough to build LDC iPhoneOS cross compiler and Phobos. Someone with OS X should see if my build works for them. I added two Xcode projects to https://github.com/smolt/ldc-iphone-dev. - helloD to simple demos of D on iOS device - unittester to run druntime/phobos unittests I also add more words to the repo README that I hope better explains things. -- Dan |
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