Re: -r321371 amd64 -> powerpc64 cross build: lldb.full link fails with: c++: error: linker command failed with exit code 1, -B/usr/local/powerpc64-freebsd/bin/ in use

[WITH_LLD= WITHOUT_LLDB= did a buildworld buildkernel
just fine for TARGET_ARCH=powerpc64 .]

On 2017-Jul-23, at 2:46 PM, Mark Millard <markmi_at_dsl-only.net> wrote:

> [Shawn Webb's logfile shows an error similar to what I
> report: lldb_private::AppleObjCRuntime::GetFoundationVersion()
> is a problem. But his report shows other errors as well, ones
> that I did not get.]
> 
> On 2017-Jul-23, at 1:04 PM, Mark Millard <markmi at dsl-only.net> wrote:
> 
>> [The lldb problem is a:
>> 
>> lldb_private::AppleObjCRuntime::GetFoundationVersion()
>> 
>> reference via Cocoa.o in liblldb.a . See below.
>> Sorry that sometimes I'm having to go back and
>> later find and report more details because of
>> other things going on here. But this likely
>> will continue for some of my preliminary
>> reports.]
>> 
>> On 2017-Jul-23, at 5:00 AM, Dimitry Andric <dim_at_FreeBSD.org> wrote:
>> 
>>> On 23 Jul 2017, at 11:17, Mark Millard <markmi_at_dsl-only.net> wrote:
>>>> 
>>>> [Linking lldb.full via 2.28 of /usr/local/powerpc64-freebsd/bin/ld
>>>> also fails with "exit code 1" (using WIHTOUT_LLD so it gets that
>>>> far). I'll continue via WITHOUT_LLDB.]
>>> ...
>>>> 
>>>> Here is the lldb.full failure text:
>>>> 
>>>> --- all_subdir_usr.bin ---
>>>> --- all_subdir_usr.bin/clang/lldb ---
>>>> c++: error: linker command failed with exit code 1 (use -v to see invocation)
>>> 
>>> Unfortunately the actual linker errors were above these lines, so you
>>> will have to look them up in the full build log (search for "undefined
>>> symbol"), or post that somewhere off-list.
>>> 
>>> I'm suspecting you get the same type of error Shawn's been getting while
>>> linking lldb.  Apparently in some scenarios more object files are needed
>>> than the minimum set I put in liblldb's Makefile.
>> 
>> --- lldb.full ---
>> /usr/obj/powerpc64vtsc_clang_altbinutils/powerpc.powerpc64/usr/src/lib/clang/liblldb/liblldb.a(Cocoa.o): In function `lldb_private::formatters::NSNumberSummaryProvider(lldb_private::ValueObject&, lldb_private::Stream&, lldb_private::TypeSummaryOptions const&)':
>> /usr/src/contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp:(.text._ZN12lldb_private10formatters23NSNumberSummaryProviderERNS_11ValueObjectERNS_6StreamERKNS_18TypeSummaryOptionsE+0x398): undefined reference to `lldb_private::AppleObjCRuntime::GetFoundationVersion()'
> 
> The first error in Shawn Webb's logfile looks like what I report:
> 
> error: undefined symbol: lldb_private::AppleObjCRuntime::GetFoundationVersion()
> 
> via Cocoa.o in liblldb.a . See below:
> 
> ===> usr.sbin/ancontrol (all)
> /usr/obj/usr/src/tmp/usr/bin/ld: error: undefined symbol: lldb_private::AppleObjCRuntime::GetFoundationVersion()
>>>> referenced by /usr/src/contrib/llvm/tools/lldb/source/Plugins/Language/ObjC/Cocoa.cpp
>>>>              Cocoa.o:(lldb_private::formatters::NSNumberSummaryProvider(lldb_private::ValueObject&, lldb_private::Stream&, lldb_private::TypeSummaryOptions const&)) in archive /usr/obj/usr/src/lib/clang/liblldb/liblldb.a
> 
> After that his log showed:
> 
> /usr/obj/usr/src/tmp/usr/bin/ld: error: undefined symbol: lldb::SBTrace::SBTrace()
>>>> referenced by /usr/src/contrib/llvm/tools/lldb/source/API/SBProcess.cpp
>>>>              SBProcess.o:(lldb::SBProcess::StartTrace(lldb::SBTraceOptions&, lldb::SBError&)) in archive /usr/obj/usr/src/lib/clang/liblldb/liblldb.a
> /usr/obj/usr/src/tmp/usr/bin/ld: error: undefined symbol: lldb::SBTrace::SetSP(std::__1::shared_ptr<lldb_private::Process> const&)
>>>> referenced by /usr/src/contrib/llvm/tools/lldb/source/API/SBProcess.cpp
>>>>              SBProcess.o:(lldb::SBProcess::StartTrace(lldb::SBTraceOptions&, lldb::SBError&)) in archive /usr/obj/usr/src/lib/clang/liblldb/liblldb.a
> /usr/obj/usr/src/tmp/usr/bin/ld: error: undefined symbol: lldb::SBTrace::SetTraceUID(unsigned long)
>>>> referenced by /usr/src/contrib/llvm/tools/lldb/source/API/SBProcess.cpp
>>>>              SBProcess.o:(lldb::SBProcess::StartTrace(lldb::SBTraceOptions&, lldb::SBError&)) in archive /usr/obj/usr/src/lib/clang/liblldb/liblldb.a
> c++: error: linker command failed with exit code 1 (use -v to see invocation)
> --- lldb.full ---
> *** [lldb.full] Error code 1
> 
> make[5]: stopped in /usr/src/usr.bin/clang/lldb
> 1 error
> 
> make[5]: stopped in /usr/src/usr.bin/clang/lldb
> --- all_subdir_usr.bin/clang/lldb ---
> *** [all_subdir_usr.bin/clang/lldb] Error code 2

I've tried an amd64 -> TARGET_ARCH=powerpc64 cross build
(builworld buildkernel) using WITH_LLD= and WITHOUT_LLDB=
and the combination built.

So for powerpc64 I've only had buildworld buildkernel
problems when attempting WITH_LLDB= style builds. (I've
not tested installing or running yet.)

(This is not a test of distrib-dirs distribution
use. That is a separate issue.)


===
Mark Millard
markmi at dsl-only.net