[cfe-dev] clang ToT doesn't build on macOS 10.10 anymore...?

[Friedman, Eli via cfe-dev]

What target triple are you compiling for?  Targets which define 
"__ARM_EABI__" should also define "__ELF__", as far as I know.

-Eli

On 3/12/2018 6:50 AM, Sean McBride wrote:
> Akira,
>
> Yes, it seems so.  If I try to build r321543 I don't get the DISPATCH_NOESCAPE error, but do still get the adddf3.c error.
>
> Sean
>
>
> On Sat, 10 Mar 2018 15:46:54 -0800, Akira Hatanaka said:
>
>> Wasn't the NOESCAPE error fixed in r321543?
>>
>> https://reviews.llvm.org/D41601
>>
>> On Sat, Mar 10, 2018 at 1:35 PM, Sean McBride <sean at rogue-research.com>
>> wrote:
>>
>>> CC'ing ahatanak and efriedma
>>>
>>> So I bisected where building on macOS 10.10 broke, and found at least 2
>>> commits that introduced errors:
>>>
>>> -------------------------------
>>> r313929 | ahatanak | 2017-09-21 18:16:50 -0400 (Thu, 21 Sep 2017)
>>>
>>> /llvm/llvm/projects/compiler-rt/lib/tsan/rtl/tsan_libdispatch_mac.cc:229:1:
>>> error: unknown type name 'DISPATCH_NOESCAPE'
>>> DISPATCH_INTERCEPT_SYNC_B(dispatch_sync, false)
>>> ^
>>> -------------------------------
>>>
>>> -------------------------------
>>> r314851 | efriedma | 2017-10-03 17:25:07 -0400 (Tue, 03 Oct 2017)
>>>
>>> /llvm/llvm/projects/compiler-rt/lib/builtins/adddf3.c:28:53: error: alias
>>> unsupported on this file format
>>> AEABI_RTABI double __aeabi_dadd(double a, double b)
>>> COMPILER_RT_ALIAS(__adddf3);
>>>                                                      ^
>>> -------------------------------
>>>
>>>
>>> On Wed, 7 Feb 2018 12:23:16 +0100, Hans Wennborg said:
>>>
>>>> I just ran into the same thing :-/
>>>>
>>>> On Fri, Jan 26, 2018 at 11:22 PM, Sean McBride via cfe-dev
>>>> <cfe-dev at lists.llvm.org> wrote:
>>>>> Hi all,
>>>>>
>>>>> I just tried updating my clang build on a few machines, and it built
>>>> fine on 10.11, but on a macOS 10.10 with AppleClang 7.0.2.7000181 I get
>>> this:
>>>>> /Users/builder/llvm/llvm/projects/compiler-rt/lib/builtins/adddf3.c:
>>>> 28:53: error: alias unsupported on this file format
>>>>> AEABI_RTABI double __aeabi_dadd(double a, double b)
>>>> COMPILER_RT_ALIAS(__adddf3);
>>>>>                                                      ^
>>>>> /Users/builder/llvm/llvm/projects/compiler-rt/lib/builtins/int_lib.h:
>>>> 29:36: note: expanded from macro 'COMPILER_RT_ALIAS'
>>>>> #define COMPILER_RT_ALIAS(aliasee) _Pragma("GCC error(\"alias
>>>> unsupported on this file format\")")
>>>>>                                     ^
>>>>> <scratch space>:89:6: note: expanded from here
>>>>>   GCC error("alias unsupported on this file format")
>>>>>       ^
>>>>>
>>>>> Should this build?  Is 10.10 supported?
>

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