llvm dev - May 2016 - Undefined symbols in llvm-objdump linkage on x86_64-apple-darwin15

On Tue, May 24, 2016 at 12:08 PM, Reid Kleckner <rnk at google.com>
wrote:
> Kevin Enderby added those symbol uses in r270491. It has a cmake
> feature test, and all the uses of those symbols appear bracketed in
> HAVE_LIBXAR, so I don't know what went wrong for you.
The trigger for this build failure is the usage of
-DLLVM_BUILD_EXTERNAL_COMPILER_RT:BOOL=ON. If I drop that cmake
option, the linkage failure for llvm-objdump disappears.
>
> On Tue, May 24, 2016 at 8:07 AM, Jack Howarth via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> Is anyone else seeing a bootstrap failure on x86_64-apple-darwin15 in
>> current trunk?
>>
>> [ 95%] Linking CXX executable ../../bin/llvm-objdump
>> Undefined symbols for architecture x86_64:
>>   "_xar_serialize", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_file_first", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_iter_new", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_prop_first", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_extract_tobuffersz", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_open", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_prop_get", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_close", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_prop_next", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_iter_free", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>>   "_xar_file_next", referenced from:
>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char const*,
>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>> MachODump.cpp.o
>> ld: symbol(s) not found for architecture x86_64
>> clang: error: linker command failed with exit code 1 (use -v to see
invocation)
>> tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/build.make:173: recipe
>> for target 'bin/llvm-objdump' failed
>> make[2]: *** [bin/llvm-objdump] Error 1
>> make[2]: Target
'tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/build'
>> not remade because of errors.
>> CMakeFiles/Makefile2:21861: recipe for target
>> 'tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/all' failed
>> make[1]: *** [tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/all] Error
2
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

On Tue, May 24, 2016 at 1:22 PM, Jack Howarth
<howarth.mailing.lists at gmail.com> wrote:
> On Tue, May 24, 2016 at 12:08 PM, Reid Kleckner <rnk at google.com>
wrote:
>> Kevin Enderby added those symbol uses in r270491. It has a cmake
>> feature test, and all the uses of those symbols appear bracketed in
>> HAVE_LIBXAR, so I don't know what went wrong for you.
>
> The trigger for this build failure is the usage of
> -DLLVM_BUILD_EXTERNAL_COMPILER_RT:BOOL=ON. If I drop that cmake
> option, the linkage failure for llvm-objdump disappears.
Wrong cmake option. I meant to say that -DLLVM_LINK_LLVM_DYLIB:BOOL=ON
is the trigger of the build failure. Sorry for the noise there.
>
>>
>> On Tue, May 24, 2016 at 8:07 AM, Jack Howarth via llvm-dev
>> <llvm-dev at lists.llvm.org> wrote:
>>> Is anyone else seeing a bootstrap failure on x86_64-apple-darwin15
in
>>> current trunk?
>>>
>>> [ 95%] Linking CXX executable ../../bin/llvm-objdump
>>> Undefined symbols for architecture x86_64:
>>>   "_xar_serialize", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_file_first", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_iter_new", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_prop_first", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_extract_tobuffersz", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_open", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_prop_get", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_close", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_prop_next", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_iter_free", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>>   "_xar_file_next", referenced from:
>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>> std::__1::char_traits<char>, std::__1::allocator<char>
>) in
>>> MachODump.cpp.o
>>> ld: symbol(s) not found for architecture x86_64
>>> clang: error: linker command failed with exit code 1 (use -v to see
invocation)
>>> tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/build.make:173:
recipe
>>> for target 'bin/llvm-objdump' failed
>>> make[2]: *** [bin/llvm-objdump] Error 1
>>> make[2]: Target
'tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/build'
>>> not remade because of errors.
>>> CMakeFiles/Makefile2:21861: recipe for target
>>> 'tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/all' failed
>>> make[1]: *** [tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/all]
Error 2
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> llvm-dev at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

On Tue, May 24, 2016 at 1:24 PM, Jack Howarth
<howarth.mailing.lists at gmail.com> wrote:
> On Tue, May 24, 2016 at 1:22 PM, Jack Howarth
> <howarth.mailing.lists at gmail.com> wrote:
>> On Tue, May 24, 2016 at 12:08 PM, Reid Kleckner <rnk at
google.com> wrote:
>>> Kevin Enderby added those symbol uses in r270491. It has a cmake
>>> feature test, and all the uses of those symbols appear bracketed in
>>> HAVE_LIBXAR, so I don't know what went wrong for you.
>>
>> The trigger for this build failure is the usage of
>> -DLLVM_BUILD_EXTERNAL_COMPILER_RT:BOOL=ON. If I drop that cmake
>> option, the linkage failure for llvm-objdump disappears.
>
> Wrong cmake option. I meant to say that -DLLVM_LINK_LLVM_DYLIB:BOOL=ON
> is the trigger of the build failure. Sorry for the noise there.
Filed as https://llvm.org/bugs/show_bug.cgi?id=27855
>
>>
>>>
>>> On Tue, May 24, 2016 at 8:07 AM, Jack Howarth via llvm-dev
>>> <llvm-dev at lists.llvm.org> wrote:
>>>> Is anyone else seeing a bootstrap failure on
x86_64-apple-darwin15 in
>>>> current trunk?
>>>>
>>>> [ 95%] Linking CXX executable ../../bin/llvm-objdump
>>>> Undefined symbols for architecture x86_64:
>>>>   "_xar_serialize", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_file_first", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_iter_new", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_prop_first", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_extract_tobuffersz", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_open", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_prop_get", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_close", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_prop_next", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_iter_free", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>>   "_xar_file_next", referenced from:
>>>>       DumpBitcodeSection(llvm::object::MachOObjectFile*, char
const*,
>>>> unsigned int, bool, bool, bool, std::__1::basic_string<char,
>>>> std::__1::char_traits<char>,
std::__1::allocator<char> >) in
>>>> MachODump.cpp.o
>>>> ld: symbol(s) not found for architecture x86_64
>>>> clang: error: linker command failed with exit code 1 (use -v to
see invocation)
>>>> tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/build.make:173:
recipe
>>>> for target 'bin/llvm-objdump' failed
>>>> make[2]: *** [bin/llvm-objdump] Error 1
>>>> make[2]: Target
'tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/build'
>>>> not remade because of errors.
>>>> CMakeFiles/Makefile2:21861: recipe for target
>>>> 'tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/all'
failed
>>>> make[1]: ***
[tools/llvm-objdump/CMakeFiles/llvm-objdump.dir/all] Error 2
>>>> _______________________________________________
>>>> LLVM Developers mailing list
>>>> llvm-dev at lists.llvm.org
>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev