Hi Jonas,
I think I took care of this in 10.4-EOL but the change may not
have made it to 10.5-EOL (but it should have). I see in the current state
that 10.4-EOL's llvm33.patch has the corrected context-related patch. I
don't have powerpc-darwin9 to test on, but someone else had tested it for
me before. I'm going to blindly sync 10.5-EOL to 10.4-EOL's copy right...
now. Please sync 10.5-EOL and try again, and let me know how that works.
Fang
> On 10/9/13 5:59 AM, Jonas Maebe wrote:
>> Hi,
>>
>> I've posted the full output from the build process at
>> http://pastebin.com/G3wzmRXw
>>
>> There appear to be two problems
>> a) the wrong version of the mcontext struct is included or accessed by
>> Address Sanitizer (line 1052 of the pastebin for the initial
>> bootstrap, lines 2922 and 3174 once clang is used after stage 1). This
>> is the definition in /usr/include/ppc/_structs.h
>>
>> # if __DARWIN_UNIX03
>> # define _STRUCT_MCONTEXT struct __darwin_mcontext
>> _STRUCT_MCONTEXT
>> {
>> _ STRUCT_PPC_EXCEPTION_STATE __es;
>> _ STRUCT_PPC_THREAD_STATE __ss;
>> _ STRUCT_PPC_FLOAT_STATE __fs;
>> _ STRUCT_PPC_VECTOR_STATE __vs;
>> };
>> # else /* !__DARWIN_UNIX03 */
>> # define _STRUCT_MCONTEXT struct mcontext
>> _STRUCT_MCONTEXT
>> {
>> _ STRUCT_PPC_EXCEPTION_STATE es;
>> _ STRUCT_PPC_THREAD_STATE ss;
>> _ STRUCT_PPC_FLOAT_STATE fs;
>> _ STRUCT_PPC_VECTOR_STATE vs;
>> };
>> #endif /* __DARWIN_UNIX03 */
>>
>> Address Sanitizer uses "ss", but complains it can't find it, so I
>> guess that __DARWIN_UNIX03 gets defined somewhere.
>>
>> b) once clang has been bootstrapped (which works without a successful
>> build of ASAN), the above errors remain and some extra ones appear
>> about unsupported block syntax (although clang apparently advertises
>> that it does support blocks, since it got past the ifdef), see lines
>> 2926/3178 of the pastebin.
>>
>> I'm currently trying to build llvm 3.2 to see whether that works better.
>>
>> Thanks,
>>
>>
>> Jonas
>>
>> PS: I'm actually only interested in llvm, not in clang, but there does
>> not appear to be an option to skip clang.
>
> The project doesn't support 10.5 any more, so this is between you and David.
>
>
--
David Fang
http://www.csl.cornell.edu/~fang/
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