Cross built head -r309179 TARGET_ARCH=powerpc64 with clang 3.9.0/powerpc64-binutils based buildworld operates; but fails "self-hosted buildworld" for undefined references

Mon Nov 28 11:02:27 UTC 2016

[The powerpc64 self-hosted buildworld failure is for undefined
references to llvm::sys::CompareAndSwap and
llvm::sys::MemoryFence. See later below.]

I cross built TARGET_ARCH=powerpc64 head -r309179 via . . .
(has workaround matching -r309201 and my PowerMac G5 booting hack)

buildworld via clang 3.9.0 and it using powerpc64-binutils
buildkernel via powerpc-xtoolchain-gcc (and so powerpc64-binutils)

and installed and booted the combination:

> # uname -apKU
> FreeBSD FBSDG5L 12.0-CURRENT FreeBSD 12.0-CURRENT #1 r309179M: Mon Nov 28 01:23:26 PST 2016     markmi at FreeBSDx64:/usr/obj/powerpc64vtsc_xtoolchain_kernel/powerpc.powerpc64/usr/src/sys/GENERIC64vtsc-NODBG  powerpc powerpc64 1200017 1200017

> # clang --version
> FreeBSD clang version 3.9.0 (tags/RELEASE_390/final 280324) (based on LLVM 3.9.0)
> Target: powerpc64-unknown-freebsd12.0
> Thread model: posix
> InstalledDir: /usr/bin

I then attempted a self-hosted buildworld but it failed with:

> Building /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/usr.bin/clang/clang-tblgen/clang-tblgen.full
> --- clang-tblgen.full ---
> /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/lib/clang/libllvmminimal/libllvmminimal.a(ManagedStatic.o): In function `getManagedStaticMutex()':
> /usr/src/contrib/llvm/lib/Support/ManagedStatic.cpp:(.text+0x1c4): undefined reference to `llvm::sys::CompareAndSwap(unsigned int volatile*, unsigned int, unsigned int)'
> /usr/src/contrib/llvm/lib/Support/ManagedStatic.cpp:(.text+0x1d8): undefined reference to `llvm::sys::MemoryFence()'
> /usr/src/contrib/llvm/lib/Support/ManagedStatic.cpp:(.text+0x220): undefined reference to `llvm::sys::MemoryFence()'
> clang++: error: linker command failed with exit code 1 (use -v to see invocation)
> *** [clang-tblgen.full] Error code 1
> 
> make[3]: stopped in /usr/src/usr.bin/clang/clang-tblgen
> .ERROR_TARGET='clang-tblgen.full'
> .ERROR_META_FILE='/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/usr.bin/clang/clang-tblgen/clang-tblgen.full.meta'
> .MAKE.LEVEL='3'
> MAKEFILE=''
> .MAKE.MODE='meta missing-filemon=yes missing-meta=yes silent=yes verbose'
> .CURDIR='/usr/src/usr.bin/clang/clang-tblgen'
> .MAKE='make'
> .OBJDIR='/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/usr.bin/clang/clang-tblgen'
> .TARGETS='all'
> DESTDIR=''
> LD_LIBRARY_PATH=''
> MACHINE='powerpc'
> MACHINE_ARCH='powerpc64'
> MAKEOBJDIRPREFIX='/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp'
> MAKESYSPATH='/usr/src/share/mk'
> MAKE_VERSION='20160818'
> PATH='/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/legacy/usr/sbin:/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/legacy/usr/bin:/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/legacy/bin:/sbin:/bin:/usr/sbin:/usr/bin'
> SRCTOP='/usr/src'
> OBJTOP='/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src'
> .MAKE.MAKEFILES='/usr/src/share/mk/sys.mk /usr/src/share/mk/local.sys.env.mk /usr/src/share/mk/src.sys.env.mk /root/src.configs/src.conf.powerpc64-clang_altbinutils-bootstrap.powerpc64-host /usr/src/share/mk/bsd.mkopt.mk /usr/src/share/mk/bsd.suffixes.mk /root/src.configs/make.conf /usr/src/share/mk/local.sys.mk /usr/src/share/mk/src.sys.mk /dev/null /usr/src/usr.bin/clang/clang-tblgen/Makefile /usr/src/usr.bin/clang/llvm.prog.mk /usr/src/lib/clang/llvm.pre.mk /usr/src/lib/clang/llvm.build.mk /usr/src/tools/build/mk/bsd.prog.mk /usr/src/share/mk/bsd.prog.mk /usr/src/share/mk/bsd.init.mk /usr/src/share/mk/bsd.opts.mk /usr/src/share/mk/bsd.cpu.mk /usr/src/share/mk/local.init.mk /usr/src/share/mk/src.init.mk /usr/src/usr.bin/clang/clang-tblgen/../Makefile.inc /usr/src/usr.bin/clang/clang-tblgen/../../Makefile.inc /usr/src/share/mk/bsd.own.mk /usr/src/share/mk/bsd.compiler.mk /usr/src/share/mk/bsd.compiler.mk /usr/src/share/mk/bsd.libnames.mk /usr/src/share/mk/src.libnames.mk /usr/src/share/mk/src.opts.mk /usr/src/share/mk/bsd.nls.mk /usr/src/share/mk/bsd.confs.mk /usr/src/share/mk/bsd.files.mk /usr/src/share/mk/bsd.incs.mk /usr/src/share/mk/bsd.links.mk /usr/src/share/mk/bsd.dep.mk /usr/src/share/mk/bsd.clang-analyze.mk /usr/src/share/mk/bsd.obj.mk /usr/src/share/mk/bsd.subdir.mk /usr/src/share/mk/bsd.sys.mk /usr/src/tools/build/mk/Makefile.boot'
> .PATH='. /usr/src/usr.bin/clang/clang-tblgen /usr/src/contrib/llvm/tools/clang/utils/TableGen'
> 1 error

. . .

> # less /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/usr.bin/clang/clang-tblgen/clang-tblgen.full.meta
> # Meta data file /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/usr.bin/clang/clang-tblgen/clang-tblgen.full.meta
> CMD /usr/bin/clang++ -B /usr/local/powerpc64-freebsd/bin/ -O2 -pipe -I/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/lib/clang/libllvm -I/usr/src/lib/clang/include -I/usr/src/contrib/llvm/include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DLLVM_DEFAULT_TARGET_TRIPLE=\"powerpc64-unknown-freebsd12.0\" -DLLVM_HOST_TRIPLE=\"powerpc64-unknown-freebsd12.0\" -DDEFAULT_SYSROOT=\"/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp\" -g -Qunused-arguments -I/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/legacy/usr/include -std=c++11 -fno-exceptions -fno-rtti -stdlib=libc++ -Wno-c++11-extensions  -static -L/usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/legacy/usr/lib -o clang-tblgen.full  ClangASTNodesEmitter.o ClangAttrEmitter.o ClangCommentCommandInfoEmitter.o ClangCommentHTMLNamedCharacterReferenceEmitter.o ClangCommentHTMLTagsEmitter.o ClangDiagnosticsEmitter.o ClangSACheckersEmitter.o NeonEmitter.o TableGen.o /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/lib/clang/libllvmminimal/libllvmminimal.a  -lncursesw  -lpthread -legacy
> CWD /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/usr.bin/clang/clang-tblgen
> TARGET clang-tblgen.full
> -- command output --
> /usr/obj/powerpc64vtsc_clang_altbinutils_world/powerpc.powerpc64/usr/src/tmp/usr/src/lib/clang/libllvmminimal/libllvmminimal.a(ManagedStatic.o): In function `getManagedStaticMutex()':
> /usr/src/contrib/llvm/lib/Support/ManagedStatic.cpp:(.text+0x1c4): undefined reference to `llvm::sys::CompareAndSwap(unsigned int volatile*, unsigned int, unsigned int)'
> /usr/src/contrib/llvm/lib/Support/ManagedStatic.cpp:(.text+0x1d8): undefined reference to `llvm::sys::MemoryFence()'
> /usr/src/contrib/llvm/lib/Support/ManagedStatic.cpp:(.text+0x220): undefined reference to `llvm::sys::MemoryFence()'
> clang++: error: linker command failed with exit code 1 (use -v to see invocation)
> *** Error code 1
. . .

> # svnlite info /usr/src/ | grep "Re[lpv]"
> Relative URL: ^/head
> Repository Root: https://svn0.us-west.freebsd.org/base
> Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
> Revision: 309179
> Last Changed Rev: 309179

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