[I should have listed more about my build context for clang.] On 2017-Jun-15, at 9:20 PM, Mark Millard <markmi at dsl-only.net> wrote:
> [A gcc 4.2.1 based buildworld buildkernel did not have this problem.] > > On 2017-Jun-15, at 5:34 PM, Mark Millard <markmi at dsl-only.net> wrote: > >> Context: amd64 -> powerpc cross build of -r319936 >> (one of my usual clang-based experiments): >> >> --- all_subdir_sys --- >> Building >> /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.chrp/boot1.elf >> --- boot1.elf --- >> boot1.o: In function `fsread_size': >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x14b8): undefined >> reference to `__udivdi3' >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x1508): undefined >> reference to `__udivdi3' >> cc: error: linker command failed with exit code 1 (use -v to see invocation) >> --- all_subdir_lib --- >> Building >> /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/lib/msun/s_remquo.po >> --- all_subdir_sys --- >> *** [boot1.elf] Error code 1 >> >> make[6]: stopped in /usr/src/sys/boot/powerpc/boot1.chrp >> .ERROR_TARGET='boot1.elf' >> .ERROR_META_FILE='/usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.chrp/boot1.elf.meta' >> >> >> # Meta data file >> /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.chrp/boot1.elf.meta >> CMD cc -target powerpc-unknown-freebsd12.0 >> --sysroot=/usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/tmp >> -B/usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/tmp/usr/bin >> -ffreestanding -msoft-float >> -I/usr/src/sys/boot/powerpc/boot1.chrp/../../common >> -I/usr/src/sys/boot/powerpc/boot1.chrp/../../../ -D_STANDALONE -std=gnu99 >> -Qunused-arguments -nostdlib -static -Wl,-N -o boot1.elf boot1.o ashldi3.o >> syncicache.o >> CWD >> /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.chrp >> TARGET boot1.elf >> -- command output -- >> boot1.o: In function `fsread_size': >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x14b8): undefined >> reference to `__udivdi3' >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x1508): undefined >> reference to `__udivdi3' >> cc: error: linker command failed with exit code 1 (use -v to see invocation) >> *** Error code 1 >> >> Note: This was -j16 for the build. >> >> I updated /usr/src and amd64 to -r319991 and then >> retried cross building for powerpc: same result. >> >> >> Note: I'd frozen at -r317820 until this update. Back then >> I could buildworld and buildkernel via clang (although >> I could not boot the clang-based kernel and so had to >> build a gcc 4.2.1 based one and use it). > > I tried a gcc 4.2.1 buildworld buildkernel and it > completed fine. > > The __udivdi3 problem is clang toolchain specific. Clang based build-context details: # more ~/sys_build_scripts.amd64-host/make_powerpcvtsc_nodebug_clang_bootstrap-amd64-host.sh kldload -n filemon && \ script ~/sys_typescripts/typescript_make_powerpcvtsc_nodebug_clang_bootstrap-amd64-host-$(date +%Y-%m-%d:%H:%M:%S) \ env __MAKE_CONF="/root/src.configs/make.conf" SRCCONF="/dev/null" SRC_ENV_CONF="/root/src.configs/src.conf.powerpc-clang-bootstrap.amd64-host" \ WITH_META_MODE=yes \ MAKEOBJDIRPREFIX="/usr/obj/powerpcvtsc_clang" \ make $* # more /root/src.configs/src.conf.powerpc-clang-bootstrap.amd64-host TO_TYPE=powerpc # KERNCONF=GENERICvtsc-NODBG TARGET=${TO_TYPE} .if ${.MAKE.LEVEL} == 0 TARGET_ARCH=${TO_TYPE} .export TARGET_ARCH .endif # WITH_CROSS_COMPILER= WITHOUT_SYSTEM_COMPILER= # WITH_LIBCPLUSPLUS= WITH_BINUTILS_BOOTSTRAP= WITH_ELFTOOLCHAIN_BOOTSTRAP= WITH_CLANG_BOOTSTRAP= WITH_CLANG= WITH_CLANG_IS_CC= WITH_CLANG_FULL= WITH_CLANG_EXTRAS= WITH_LLD= # lldb requires missing atomic 8-byte operations for powerpc (non-64) WITHOUT_LLDB= # WITH_BOOT= WITHOUT_LIB32= # WITHOUT_GCC_BOOTSTRAP= WITHOUT_GCC= WITHOUT_GCC_IS_CC= WITHOUT_GNUCXX= # NO_WERROR= # # Use WERROR to avoid stopping at the likes of: # error: implicit conversion from 'int' to 'int8_t' (aka 'signed char') changes value from 128 to -128 [-Werror,-Wconstant-conversion] WERROR= MALLOC_PRODUCTION= # WITH_REPRODUCIBLE_BUILD= WITH_DEBUG_FILES= So the system binutils tools are in used. Even though I build lld, last I tried lld could not be used so it is not the linker used by the above. === Mark Millard markmi at dsl-only.net _______________________________________________ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"