-O3 gcc libraries
Closed this issue · 51 comments
Based on @NapalmSauce 's comments in #607, we need new libgcc, libatomic and libstdc++ for G3, 7400, 7450 and G5 built -O3 for 10.4.
(currently we use a single genericized libgcc etc anyway, so this could be an architecture-specific benefit)
(nevermind, just looked at an .app from sourceforge)
Also @kencu of course I'm not messing with the bootstrap flags; I keep it to bootstrap-debug, just for the final build flags. I used gcc-5's stock libraries, including the gmp, mpfr and mpc versions. I haven't encountered any issues with bootstrap and so far, but still, I'm interested to know if something really breaks that I'm overlooking.
Well -- Iain tells me that the optflags for the libgcc and gcc builds are intrinsic to the gcc build system, they are set to optimal settings, and they totally ignore how we set the optflags or build the the bootstrap compiler.
Are you modifying the deep-in-the-guts gcc Makefiles? If so, I can't sell that to MacPorts.
Perhaps you can show me what you are doing, so i understand better?
@iains -- can you weigh in here for a second? We're trying to make sure that gcc builds itself with optimal settings and there is some question whether it does.
Specifically the gcc is gcc48, but as you know, MacPorts uses parts of libgcc from libgcc 5,6, & 7 in the final mix.
(aside -- gcc8 / libgcc8 builds on 10.4 and 10.5 PPC too -- I just haven't rolled that out to macports yet. I haven't tried gcc9 in a while, but Iain may well have done).
No, really, I don't want to hack the build system, all I'm doing is setting custom CFLAGS and CXXFLAGS, which the build ignores during stage1, but uses for stage2 and 3. Even in stage2 and stage3 an -O3 flag seems to be discarded in various directories. The resulting libraries, though, get fatter with -O3, so CFLAGS/CXXFLAGS, at the very least, does something.
Well if that does change the compiler, and I take your word for it for now, that is news to me as I was under the impression that gcc totally ignored all that beyond the bootstrap compiler (unless you go to some lengths kencu/TigerPorts@d26a0bf#diff-969dec99a801dec9918fbde6ddf5d442 to force gcc to do something you want it to). Live and learn, I guess.
I have to stick with macports builds, as I use that infrastructure to fix hundreds of other tickets and issues with ports, so can't veer too far off the farm.
One thing to know, btw, if you're comparing to the macports libgcc build -- the overall libgcc infrastructure on macports comes from (at least) three different versions of libgcc.
The approach is to use the libgcc dylibs from the last version supported on the OS, so the "libgcc" that gcc48 uses on 10.4 Tiger with macports is actually mostly libgcc 7.5.0, with parts of libgcc 6, and parts from libgcc48.
well, yes indeedy, you can -- this is for libc, but presumably the same for other libraries. https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html. Look at that. I learn so much from you guys.
Now I will have to ponder how I can use that information...
I'm working on getting the gcc runtimes. I hoped I could lazily cross-compile everything from 10.5 for 10.4 but it fails to. :-( I'll just properly boot into tiger.
It says default to -O2 -g . GCC (the compiler portion) might default to no -O flag specified, with runtimes libraries defaulting to -O2 -g just like glibc does.. That would make sense from my tests.
I am still trying to understand how compiling a library with a different opt setting could speed up your compilation, though.
The gcc48 compiler, sure -- it does a lot of this and that -- but the library is just a bunch of precompiled routines.
-O3 10.4-native libgcc and friends, one set per subarch. Do you plan to ship them next beta, or something like upload them loose on sourceforge so beta-users can test outside of cycles?
Wow, that's great! Thank you, that saves me a lot of time. I think we can probably ship them in the beta.
You're welcome! They're already relinked the same way as in a tenfourfox bundle, so they're basically drop-in replacements.
I'll integrate them into the internal build system tomorrow and give it a test run.
may I ask which version of gcc7 they were built from?
They're built off gcc-5.5. Cameron has a fairly outdated macports tree from what I can see; the libgcc, libstdc++ and libatomic versions listed with otool -L firefox are lower that what gcc-5 produces.
That means someone building tenfourfox using an FSF gcc from macports (and who doesn't have an outdated tree) won't be able to drop-in these(since requiring libgcc7), but in that sense, even using versions matching macports, as soon as macports bumps their libgcc port there are chances the drop-in will stop working anyway.
This is just something to be solved with policy: the drop-ins are only supported with the same ABI level. Builders would be on their own for that. I'll add something to the build notes. I have intentionally not revved my tree because I'm trying to eliminate toolchain issues as a variable in problems.
FYI all the gcc versions on MacPorts (gcc48, gcc5, 6, 7) use the libstdc++.dylib from gcc7.
There is no compatibility issue doing that. We bump libgcc all the time without breaking things as by-and-large they are backward compatible.
However, before I bump libgcc to default to libgcc8 on PPC, Iain mentioned a possibly slipped-through-the-cracks ABI error that I will need to make sure is no big deal.
Yes, they're backward-compatible, but older ones are not drop in, as the dynamic linker complains about versions. If gcc48 links against libraries from gcc7, then libraries from gcc7 become the minimum.
Got it. Yes, I can see that these won't work for anyone using a current MacPorts to build TFF (if there is anyone besides the three of us :> ).
I guess I should have no problem building O3's with gcc7 though, for my own use at least, and then all will be well again and I can use MacPorts current infrastructure.
@iains is that specific to C++17, i.e., if it's not compiling to that standard, it shouldn't be a problem? TenFourFox's compiler options don't use that.
By the way -- @classilla and @iains -- I wanted to make sure that the two of you were properly introduced, if you don't already know each other. Iain is the darwin lead for gcc, and has been making it all happen for some long time now. Cameron is without a doubt the other most knowledgable PowerPC programmer I have stumbled across in the past few years.
You two have things in common!
I can bootstrap all open branches natively on Darwin8, with two constraints : A) the current sources need ld64-58.2.1 at least B) patches mentioned here: https://gcc.gnu.org/pipermail/gcc-testresults/2020-May/560310.html
BTW, I have a more complete patch a for _SC_NPROCESSORS_ONLN if you like.
So, it drops in fine. I don't notice much improvement in V8, but that largely tests the JIT. DOM seems a bit sprightlier and nothing regresses so let's ship this for the beta. I've plugged it into the autobuilder.
That's pretty much it, no magic, but helps. Small win for already cpu-optimized builds. You did the testing on the G5 quad?
Yup.
Marking as fixed since this is shipping. Feel free to talk about the other issues still here if you want, though.
@kencu Do you still recall what was the trick to make gcc8 build on 10.5 PPC?
FWIW: I don't recall needing any 'trick' to build gcc-8-5 on powerpc-apple-darwin9: here is the configure line I used to check the 8.5 release:
/src-local/gcc-8/configure --prefix=/opt/iains/powerpc-apple-darwin9/gcc-8-5 --build=powerpc-apple-darwin9 --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=all
nothing special and no patches.
NOTE: that there would be some recommended back ports of fixes since then - but those are not build fixes.
@iains Thank you for replying. For me any gcc higher than 7 fails with some Bus errors. Initially I have been trying to get gcc11 to 10.6 PPC, but then tried to build the same on 10.5.8 PPC, and that too fails.
:info:build echo GCC_CFLAGS = '-g -O2 -pipe -Os -DIN_GCC -fPIC -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include ' >> tmp-libgcc.mvars
:info:build echo INHIBIT_LIBC_CFLAGS = '' >> tmp-libgcc.mvars
:info:build echo TARGET_SYSTEM_ROOT = '' >> tmp-libgcc.mvars
:info:build if test no = yes; then \
:info:build NO_PIE_CFLAGS="-fno-PIE"; \
:info:build else \
:info:build NO_PIE_CFLAGS=; \
:info:build fi; \
:info:build echo NO_PIE_CFLAGS = "$NO_PIE_CFLAGS" >> tmp-libgcc.mvars
:info:build mv tmp-libgcc.mvars libgcc.mvars
:info:build if /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/ -print-sysroot-headers-suffix > /dev/null 2>&1; then \
:info:build set -e; for ml in `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/ -print-multi-lib`; do \
:info:build multi_dir=`echo ${ml} | sed -e 's/;.*$//'`; \
:info:build flags=`echo ${ml} | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
:info:build sfx=`/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/ ${flags} -print-sysroot-headers-suffix`; \
:info:build if [ "${multi_dir}" = "." ]; \
:info:build then multi_dir=""; \
:info:build else \
:info:build multi_dir=/${multi_dir}; \
:info:build fi; \
:info:build echo "${sfx};${multi_dir}"; \
:info:build done; \
:info:build else \
:info:build echo ";"; \
:info:build fi > tmp-fixinc_list
:info:build /bin/sh /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../move-if-change tmp-fixinc_list fixinc_list
:info:build echo timestamp > s-fixinc_list
:info:build rm -rf libbackend.a
:info:build ar rc libbackend.a gimple-match.o generic-match.o insn-attrtab.o insn-automata.o insn-dfatab.o insn-emit.o insn-extract.o insn-latencytab.o insn-modes.o insn-opinit.o insn-output.o insn-peep.o insn-preds.o insn-recog.o insn-enums.o ggc-page.o alias.o alloc-pool.o auto-inc-dec.o auto-profile.o bb-reorder.o bitmap.o bt-load.o builtins.o caller-save.o calls.o ccmp.o cfg.o cfganal.o cfgbuild.o cfgcleanup.o cfgexpand.o cfghooks.o cfgloop.o cfgloopanal.o cfgloopmanip.o cfgrtl.o symtab.o cgraph.o cgraphbuild.o cgraphunit.o cgraphclones.o combine.o combine-stack-adj.o compare-elim.o context.o convert.o coverage.o cppbuiltin.o cppdefault.o cprop.o cse.o cselib.o data-streamer.o data-streamer-in.o data-streamer-out.o dbxout.o dbgcnt.o dce.o ddg.o debug.o df-core.o df-problems.o df-scan.o dfp.o dojump.o dominance.o domwalk.o double-int.o dse.o dumpfile.o dwarf2asm.o dwarf2cfi.o dwarf2out.o early-remat.o emit-rtl.o et-forest.o except.o explow.o expmed.o expr.o fibonacci_heap.o file-prefix-map.o final.o fixed-value.o fold-const.o fold-const-call.o function.o function-tests.o fwprop.o gcc-rich-location.o gcse.o gcse-common.o ggc-common.o ggc-tests.o gimple.o gimple-builder.o gimple-expr.o gimple-iterator.o gimple-fold.o gimple-laddress.o gimple-loop-interchange.o gimple-loop-jam.o gimple-low.o gimple-pretty-print.o gimple-ssa-backprop.o gimple-ssa-evrp.o gimple-ssa-evrp-analyze.o gimple-ssa-isolate-paths.o gimple-ssa-nonnull-compare.o gimple-ssa-split-paths.o gimple-ssa-store-merging.o gimple-ssa-strength-reduction.o gimple-ssa-sprintf.o gimple-ssa-warn-alloca.o gimple-ssa-warn-restrict.o gimple-streamer-in.o gimple-streamer-out.o gimple-walk.o gimplify.o gimplify-me.o godump.o graph.o graphds.o graphite.o graphite-isl-ast-to-gimple.o graphite-dependences.o graphite-optimize-isl.o graphite-poly.o graphite-scop-detection.o graphite-sese-to-poly.o gtype-desc.o haifa-sched.o hash-map-tests.o hash-set-tests.o hsa-common.o hsa-gen.o hsa-regalloc.o hsa-brig.o hsa-dump.o hw-doloop.o hwint.o ifcvt.o ree.o inchash.o incpath.o init-regs.o internal-fn.o ipa-chkp.o ipa-cp.o ipa-devirt.o ipa-fnsummary.o ipa-polymorphic-call.o ipa-split.o ipa-inline.o ipa-comdats.o ipa-visibility.o ipa-inline-analysis.o ipa-inline-transform.o ipa-predicate.o ipa-profile.o ipa-prop.o ipa-param-manipulation.o ipa-pure-const.o ipa-icf.o ipa-icf-gimple.o ipa-reference.o ipa-hsa.o ipa-ref.o ipa-utils.o ipa.o ira.o ira-build.o ira-costs.o ira-conflicts.o ira-color.o ira-emit.o ira-lives.o jump.o langhooks.o lcm.o lists.o loop-doloop.o loop-init.o loop-invariant.o loop-iv.o loop-unroll.o lower-subreg.o lra.o lra-assigns.o lra-coalesce.o lra-constraints.o lra-eliminations.o lra-lives.o lra-remat.o lra-spills.o lto-cgraph.o lto-streamer.o lto-streamer-in.o lto-streamer-out.o lto-section-in.o lto-section-out.o lto-opts.o lto-compress.o mcf.o mode-switching.o modulo-sched.o multiple_target.o omp-offload.o omp-expand.o omp-general.o omp-grid.o omp-low.o omp-simd-clone.o optabs.o optabs-libfuncs.o optabs-query.o optabs-tree.o options-save.o opts-global.o passes.o plugin.o postreload-gcse.o postreload.o predict.o print-rtl.o print-rtl-function.o print-tree.o profile.o profile-count.o read-md.o read-rtl.o read-rtl-function.o real.o realmpfr.o recog.o reg-stack.o regcprop.o reginfo.o regrename.o regstat.o reload.o reload1.o reorg.o resource.o rtl-chkp.o rtl-error.o rtl-tests.o rtl.o rtlhash.o rtlanal.o rtlhooks.o rtx-vector-builder.o run-rtl-passes.o sched-deps.o sched-ebb.o sched-rgn.o sel-sched-ir.o sel-sched-dump.o sel-sched.o selftest-rtl.o selftest-run-tests.o sese.o shrink-wrap.o simplify-rtx.o sparseset.o spellcheck.o spellcheck-tree.o sreal.o stack-ptr-mod.o statistics.o stmt.o stor-layout.o store-motion.o streamer-hooks.o stringpool.o substring-locations.o target-globals.o targhooks.o timevar.o toplev.o tracer.o trans-mem.o tree-affine.o asan.o tsan.o ubsan.o sanopt.o sancov.o tree-call-cdce.o tree-cfg.o tree-cfgcleanup.o tree-chrec.o tree-complex.o tree-data-ref.o tree-dfa.o tree-diagnostic.o tree-dump.o tree-eh.o tree-emutls.o tree-if-conv.o tree-inline.o tree-into-ssa.o tree-iterator.o tree-loop-distribution.o tree-nested.o tree-nrv.o tree-object-size.o tree-outof-ssa.o tree-parloops.o tree-phinodes.o tree-chkp.o tree-chkp-opt.o tree-predcom.o tree-pretty-print.o tree-profile.o tree-scalar-evolution.o tree-sra.o tree-switch-conversion.o tree-ssa-address.o tree-ssa-alias.o tree-ssa-ccp.o tree-ssa-coalesce.o tree-ssa-copy.o tree-ssa-dce.o tree-ssa-dom.o tree-ssa-dse.o tree-ssa-forwprop.o tree-ssa-ifcombine.o tree-ssa-live.o tree-ssa-loop-ch.o tree-ssa-loop-im.o tree-ssa-loop-ivcanon.o tree-ssa-loop-ivopts.o tree-ssa-loop-manip.o tree-ssa-loop-niter.o tree-ssa-loop-prefetch.o tree-ssa-loop-split.o tree-ssa-loop-unswitch.o tree-ssa-loop.o tree-ssa-math-opts.o tree-ssa-operands.o tree-ssa-phionlycprop.o tree-ssa-phiopt.o tree-ssa-phiprop.o tree-ssa-pre.o tree-ssa-propagate.o tree-ssa-reassoc.o tree-ssa-sccvn.o tree-ssa-scopedtables.o tree-ssa-sink.o tree-ssa-strlen.o tree-ssa-structalias.o tree-ssa-tail-merge.o tree-ssa-ter.o tree-ssa-threadbackward.o tree-ssa-threadedge.o tree-ssa-threadupdate.o tree-ssa-uncprop.o tree-ssa-uninit.o tree-ssa.o tree-ssanames.o tree-stdarg.o tree-streamer.o tree-streamer-in.o tree-streamer-out.o tree-tailcall.o tree-vect-generic.o tree-vect-patterns.o tree-vect-data-refs.o tree-vect-stmts.o tree-vect-loop.o tree-vect-loop-manip.o tree-vect-slp.o tree-vectorizer.o tree-vector-builder.o tree-vrp.o tree.o typed-splay-tree.o unique-ptr-tests.o valtrack.o value-prof.o var-tracking.o varasm.o varpool.o vec-perm-indices.o vmsdbgout.o vr-values.o vtable-verify.o web.o wide-int.o wide-int-print.o xcoffout.o rs6000.o rs6000-string.o rs6000-p8swap.o darwin.o host-darwin.o host-ppc-darwin.o
:info:build ranlib libbackend.a
:info:build if [ -f ../stage_final ] \
:info:build && cmp -s ../stage_current ../stage_final; then \
:info:build cp ../prev-gcc/cc1-checksum.c cc1-checksum.c; \
:info:build else \
:info:build build/genchecksum c/c-lang.o c-family/stub-objc.o attribs.o c/c-errors.o c/c-decl.o c/c-typeck.o c/c-convert.o c/c-aux-info.o c/c-objc-common.o c/c-parser.o c/c-fold.o c/gimple-parser.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o c-family/c-gimplify.o c-family/c-indentation.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o c-family/c-ubsan.o c-family/known-headers.o c-family/c-attribs.o c-family/c-warn.o c-family/c-spellcheck.o darwin-c.o rs6000-c.o libbackend.a main.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a ../libiberty/pic/libiberty.a ../libdecnumber/libdecnumber.a ../libbacktrace/.libs/libbacktrace.a \
:info:build checksum-options > cc1-checksum.c.tmp && \
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../move-if-change cc1-checksum.c.tmp cc1-checksum.c; \
:info:build fi
:info:build if [ -f ../stage_final ] \
:info:build && cmp -s ../stage_current ../stage_final; then \
:info:build cp ../prev-gcc/cc1plus-checksum.c cc1plus-checksum.c; \
:info:build else \
:info:build build/genchecksum cp/cp-lang.o c-family/stub-objc.o cp/call.o cp/class.o cp/constexpr.o cp/constraint.o cp/cp-gimplify.o cp/cp-objcp-common.o cp/cp-ubsan.o cp/cvt.o cp/cxx-pretty-print.o cp/decl.o cp/decl2.o cp/dump.o cp/error.o cp/except.o cp/expr.o cp/friend.o cp/init.o cp/lambda.o cp/lex.o cp/logic.o cp/mangle.o cp/method.o cp/name-lookup.o cp/optimize.o cp/parser.o cp/pt.o cp/ptree.o cp/repo.o cp/rtti.o cp/search.o cp/semantics.o cp/tree.o cp/typeck.o cp/typeck2.o cp/vtable-class-hierarchy.o attribs.o incpath.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o c-family/c-gimplify.o c-family/c-indentation.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o c-family/c-ubsan.o c-family/known-headers.o c-family/c-attribs.o c-family/c-warn.o c-family/c-spellcheck.o darwin-c.o rs6000-c.o libbackend.a main.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a ../libiberty/pic/libiberty.a ../libdecnumber/libdecnumber.a ../libbacktrace/.libs/libbacktrace.a \
:info:build checksum-options > cc1plus-checksum.c.tmp && \
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../move-if-change cc1plus-checksum.c.tmp cc1plus-checksum.c; \
:info:build fi
:info:build /opt/local/bin/g++-mp-7 -arch ppc -std=gnu++98 -no-pie -g -mdynamic-no-pic -DIN_GCC -fPIC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -static-libstdc++ -static-libgcc -L/opt/local/lib -Wl,-headerpad_max_install_names -o lto1 \
:info:build lto/lto-lang.o lto/lto.o lto/lto-object.o attribs.o lto/lto-partition.o lto/lto-symtab.o libbackend.a main.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a -L/opt/local/lib -lisl -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -lmpc -lmpfr -lgmp -lz libcommon.a ../libcpp/libcpp.a -liconv ../libbacktrace/.libs/libbacktrace.a ../libiberty/pic/libiberty.a ../libdecnumber/libdecnumber.a
:info:build /opt/local/bin/g++-mp-7 -arch ppc -std=gnu++98 -fno-PIE -c -DIN_GCC_FRONTEND -g -mdynamic-no-pic -DIN_GCC -fPIC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libcpp/include -I/opt/local/include -I/opt/local/include -I/opt/local/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libdecnumber -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libdecnumber/dpd -I../libdecnumber -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libbacktrace -I/opt/local/include -I/opt/local/include -o cc1plus-checksum.o -MT cc1plus-checksum.o -MMD -MP -MF ./.deps/cc1plus-checksum.TPo cc1plus-checksum.c
:info:build /opt/local/bin/g++-mp-7 -arch ppc -std=gnu++98 -fno-PIE -c -DIN_GCC_FRONTEND -g -mdynamic-no-pic -DIN_GCC -fPIC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libcpp/include -I/opt/local/include -I/opt/local/include -I/opt/local/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libdecnumber -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libdecnumber/dpd -I../libdecnumber -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/../libbacktrace -I/opt/local/include -I/opt/local/include -o cc1-checksum.o -MT cc1-checksum.o -MMD -MP -MF ./.deps/cc1-checksum.TPo cc1-checksum.c
:info:build cc1plus: warning: '-mdynamic-no-pic' overrides '-fpic', '-fPIC', '-fpie' or '-fPIE'
:info:build cc1plus: warning: '-mdynamic-no-pic' overrides '-fpic', '-fPIC', '-fpie' or '-fPIE'
:info:build /opt/local/bin/g++-mp-7 -arch ppc -std=gnu++98 -no-pie -g -mdynamic-no-pic -DIN_GCC -fPIC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -static-libstdc++ -static-libgcc -L/opt/local/lib -Wl,-headerpad_max_install_names -o cc1 c/c-lang.o c-family/stub-objc.o attribs.o c/c-errors.o c/c-decl.o c/c-typeck.o c/c-convert.o c/c-aux-info.o c/c-objc-common.o c/c-parser.o c/c-fold.o c/gimple-parser.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o c-family/c-gimplify.o c-family/c-indentation.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o c-family/c-ubsan.o c-family/known-headers.o c-family/c-attribs.o c-family/c-warn.o c-family/c-spellcheck.o darwin-c.o rs6000-c.o \
:info:build cc1-checksum.o libbackend.a main.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a -liconv ../libbacktrace/.libs/libbacktrace.a ../libiberty/pic/libiberty.a ../libdecnumber/libdecnumber.a -L/opt/local/lib -lisl -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -lmpc -lmpfr -lgmp -lz
:info:build /opt/local/bin/g++-mp-7 -arch ppc -std=gnu++98 -no-pie -g -mdynamic-no-pic -DIN_GCC -fPIC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -static-libstdc++ -static-libgcc -L/opt/local/lib -Wl,-headerpad_max_install_names -o cc1plus \
:info:build cp/cp-lang.o c-family/stub-objc.o cp/call.o cp/class.o cp/constexpr.o cp/constraint.o cp/cp-gimplify.o cp/cp-objcp-common.o cp/cp-ubsan.o cp/cvt.o cp/cxx-pretty-print.o cp/decl.o cp/decl2.o cp/dump.o cp/error.o cp/except.o cp/expr.o cp/friend.o cp/init.o cp/lambda.o cp/lex.o cp/logic.o cp/mangle.o cp/method.o cp/name-lookup.o cp/optimize.o cp/parser.o cp/pt.o cp/ptree.o cp/repo.o cp/rtti.o cp/search.o cp/semantics.o cp/tree.o cp/typeck.o cp/typeck2.o cp/vtable-class-hierarchy.o attribs.o incpath.o c-family/c-common.o c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o c-family/c-gimplify.o c-family/c-indentation.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o c-family/c-ubsan.o c-family/known-headers.o c-family/c-attribs.o c-family/c-warn.o c-family/c-spellcheck.o darwin-c.o rs6000-c.o cc1plus-checksum.o libbackend.a main.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a -liconv ../libbacktrace/.libs/libbacktrace.a ../libiberty/pic/libiberty.a ../libdecnumber/libdecnumber.a -L/opt/local/lib -lisl -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -lmpc -lmpfr -lgmp -lz
:info:build ld: warning: direct access in libc_name::hash(char const*, unsigned int) to global weak symbol libc_name::hash(char const*, unsigned int) means the weak symbol cannot be overriden at runtime. This was likely caused by different translation units being compiled with different visiblity settings.
:info:build ld: warning: direct access in libc_name::hash(char const*, unsigned int) to global weak symbol libc_name::hash(char const*, unsigned int) means the weak symbol cannot be overriden at runtime. This was likely caused by different translation units being compiled with different visiblity settings.
:info:build ld: warning: direct access in libc_name::hash(char const*, unsigned int) to global weak symbol libc_name::hash(char const*, unsigned int) means the weak symbol cannot be overriden at runtime. This was likely caused by different translation units being compiled with different visiblity settings.
:info:build ld: warning: direct access in libc_name::hash(char const*, unsigned int) to global weak symbol libc_name::hash(char const*, unsigned int) means the weak symbol cannot be overriden at runtime. This was likely caused by different translation units being compiled with different visiblity settings.
:info:build ld: warning: direct access in libc_name::hash(char const*, unsigned int) to global weak symbol libc_name::hash(char const*, unsigned int) means the weak symbol cannot be overriden at runtime. This was likely caused by different translation units being compiled with different visiblity settings.
:info:build ld: warning: direct access in libc_name::hash(char const*, unsigned int) to global weak symbol libc_name::hash(char const*, unsigned int) means the weak symbol cannot be overriden at runtime. This was likely caused by different translation units being compiled with different visiblity settings.
:info:build echo | /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build/./gcc/ -E -dM - | \
:info:build sed -n -e 's/^#define \([^_][a-zA-Z0-9_]*\).*/\1/p' \
:info:build -e 's/^#define \(_[^_A-Z][a-zA-Z0-9_]*\).*/\1/p' | \
:info:build sort -u > tmp-macro_list
:info:build cc1: internal compiler error: Bus error
:info:build libbacktrace could not find executable to open
:info:build make[3]: *** [s-macro_list] Error 130
:info:build make[3]: *** Deleting intermediate file `gcc.pod'
:info:build make[2]: *** [all-stage1-gcc] Interrupt
:info:build make[1]: *** [stage1-bubble] Interrupt
:info:build make: *** [bootstrap-lean] Interrupt
:info:build Command failed: cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/build" && /usr/bin/make -j4 -w bootstrap-lean
:info:build Killed by signal: 2
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@kencu Do you still recall what was the trick to make gcc8 build on 10.5 PPC?
If you would like to open a ticket on MacPorts about building gcc8 on 10.5 PPC, we can work through it there.
For a start, what I would do is just build gcc8 alone, without macports in the mix. It is not hard to do, there are four prerequisites needed, and then it will build in a folder without any outside confusion. Do it on an Intel system first, maybe, just to really get a flavour of how this is done.
Once you see how to build it simply, without confusion, then build gcc8 on PowerPC 10.5 Leopard. It builds easily (for me).
And then, once you know it builds, you can try to build it in MacPorts environment. That adds lots of confusion, environment variables, non-standard linker, assembler, and libtool choices, etc.
Then once you get gcc8 building in a MacPorts environment, you can look at actually updating the floor gcc in MacPorts of 10.5 to gcc8. There are issues on MacPorts building gcc8 in 10.5 on the Intel side (assembler issues induced by the changes made to cctools in MacPorts) but they can be worked through (I did, on 10.6+, with Iain's help).
@kencu Do you still recall what was the trick to make gcc8 build on 10.5 PPC?
And then, once you know it builds, you can try to build it in MacPorts environment. That adds lots of confusion, environment variables, non-standard linker, assembler, and libtool choices, etc.
There are definitely versions of cctools 'as' that are broken for powerpc.
- I have a series of patches in my xtools branches that work (but have not been updated recently).
ld64branch islanding was always limited and in some cases broken too (with bugs in the offset value) - I have fixes for that for some versions ofld64(but not sure which you are using). This matters quite a bit when trying to build modern C++ codebases where the executables are getting quite large.
@iains I have ld64 from Macports, and apparently it works since gcc4.9, gcc6 and gcc7 have compiled and are functional. Something breaks down starting with gcc8.
The only time I changed the linker was when I tried building TFF, @kencu suggestion helped me proceed quite far with the build: #498
However it still failed with weird zip errors: #652
I have actually tried to build your xtools, but Cmake complained about the lack of tapi. Then I tried building libtapi via Macports, and it failed on 10.6 PPC and 10.5.8 alike. I opened a ticket for that: https://trac.macports.org/ticket/64187 (re failure on 10.5.8).
@kencu Thank you, I will give it a try. Anyway I want to check that 10.6 PPC is indeed unable to compile for ppc64, and Macports for some reason ignores --enforce-variants +universal (which I have set in config to be ppc ppc64). I remember what you have told me, so my hopes are low here. Once ppc64 fails, I try building the same gcc for ppc32 (outside of Macports). Compilation is running now, and unless is errors soon, I will leave it compile overnight.
@iains I have ld64 from Macports,
what version is that?
and apparently it works since gcc4.9, gcc6 and gcc7 have compiled and are functional. Something breaks down starting with gcc8.
maybe the executable gets larger and the islanding fails?
what is the reported problem?
The only time I changed the linker was when I tried building TFF, @kencu suggestion helped me proceed quite far with the build: #498 However it still failed with weird zip errors: #652
I have actually tried to build your xtools, but Cmake complained about the lack of tapi.
Yes, tapi needs to be built from the llvm/clang project (I have not had any chance to update from 7.1.1 - but that was working sufficiently for the ld64 being built.)
note: Upstream LLVM needs patches to work on powerpc-darwin (those are on my llvm-7.1.1. branch)
Then I tried building libtapi via Macports, and it failed on 10.6 PPC and 10.5.8 alike. I opened a ticket for that: https://trac.macports.org/ticket/64187 (re failure on 10.5.8).
no idea on that - (but it would not be a surprise, depending on the LLVM versions, since older OS support was dropped at various points)
@kencu @iains Okay, Iains branch of gcc10 failed building with this:
ld: symbol(s) not found for architecture ppc
collect2: error: ld returned 1 exit status
make[3]: *** [lto1] Error 1
make[3]: *** Waiting for unfinished jobs....
Undefined symbols for architecture ppc:
"_ZSTD_maxCLevel", referenced from:
lto_normalized_zstd_level() in libbackend.a(lto-compress.o)
"_ZSTD_compressBound", referenced from:
lto_compression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
"_ZSTD_compress", referenced from:
lto_compression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
"_ZSTD_isError", referenced from:
lto_compression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
lto_uncompression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
"_ZSTD_getErrorName", referenced from:
lto_compression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
lto_uncompression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
"_ZSTD_getFrameContentSize", referenced from:
lto_uncompression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
"_ZSTD_decompress", referenced from:
lto_uncompression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o)
ld: symbol(s) not found for architecture ppc
collect2: error: ld returned 1 exit status
make[3]: *** [lto-dump] Error 1
rm gcov.pod fsf-funding.pod lto-dump.pod gpl.pod cpp.pod gfdl.pod gcc.pod gcov-dump.pod gcov-tool.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2
I have seen this error a number of times, it is not related to 64-bit (I have been building for ppc previously, not ppc64). I will reconfigure now for 32-bit just to make sure.
P. S. I used gcc-mp-7 and g++-mp-7 in config (which otherwise perfectly work).
@kencu Thank you, I will give it a try. Anyway I want to check that 10.6 PPC is indeed unable to compile for ppc64,
10.6 was only released on X86, and the powerpc support was via Rosetta - which only supports ppc7400. The system libraries on 10.6 do not contain a ppc64 slice (so you should not expect it to work on any standard 10.6 configuration).
@iains Here is the ld64 output:
36-9:build svacchanda$ port -v installed ld64
The following ports are currently installed:
ld64 @3_3+ld64_127 (active) requested_variants='' platform='darwin 10' archs='ppc' date='2021-10-04T16:17:12+0800'
ld64 @3_3+ld64_97 requested_variants='+ld64_97' platform='darwin 10' archs='ppc' date='2021-12-15T02:40:15+0800'
36-9:build svacchanda$
So the ld64_127 have been used for everything aside of TFF build attempt.
Regarding tapi and xtools: so where should I start? As @kencu suggested, I can try working completely outside of Macports set up. (Which would mean I have gcc4.2 as a system compiler.)
however, compiling 32b code with -macosx-version-min=10.6 should work for recent GCC (I do not recall when, exactly, we fixed the Rosetta support).
@iains Here is the ld64 output:
36-9:build svacchanda$ port -v installed ld64 The following ports are currently installed: ld64 @3_3+ld64_127 (active) requested_variants='' platform='darwin 10' archs='ppc' date='2021-10-04T16:17:12+0800' ld64 @3_3+ld64_97 requested_variants='+ld64_97' platform='darwin 10' archs='ppc' date='2021-12-15T02:40:15+0800' 36-9:build svacchanda$
So the ld64_127 have been used for everything aside of TFF build attempt.
ld64 127 was the last version to support ppc (officially) although ISTR that the release of cctools at the same time was broken for ppc64.
I have not yet back ported the re-write of branch islanding to that version.
Regarding tapi and xtools: so where should I start? As @kencu suggested, I can try working completely outside of Macports set up. (Which would mean I have gcc4.2 as a system compiler.)
I'd suggest you try to build an earlier version of xtools
https://github.com/iains/darwin-xtools/tree/darwin-xtools-1-1-0
This does not need a tapi build (and 10.5 does not use .tbd libs so that's OK) - however, this does need a C++11 compiler (all later ld64 versions do) but GCC5 is fine.
For the record: up to gcc-10 you should be able to bootstrap with Apple-gcc-4.2.1 (I have checked that works) - but from GCC-11 we also need a C++11 compiler (although, again, GCC-5 should be OK).
JFTR: The branch does work perfectly OK on powerpc-darwin9 :
the 10.3 release was configured and tested like so:
/src-local/gcc-10/configure --prefix=/opt/iains/powerpc-apple-darwin9/gcc-10-3-toolchain --build=powerpc-apple-darwin9 --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=all
https://gcc.gnu.org/pipermail/gcc-testresults/2021-April/681033.html
building with this:
ld: symbol(s) not found for architecture ppc collect2: error: ld returned 1 exit status make[3]: *** [lto1] Error 1 make[3]: *** Waiting for unfinished jobs.... Undefined symbols for architecture ppc: "_ZSTD_maxCLevel", referenced from: lto_normalized_zstd_level() in libbackend.a(lto-compress.o) "_ZSTD_compressBound", referenced from: lto_compression_zstd(lto_compression_stream*) in libbackend.a(lto-compress.o) "_ZSTD_compress", referenced from:
I have seen this error a number of times, it is not related to 64-bit (I have been building for ppc previously, not ppc64). I will reconfigure now for 32-bit just to make sure.
This looks like some kind of configuration error - i.e. it is thinks it can use a compression scheme for LTO that it fails to find later.
What is the configuration line?
BTW .. this "issue" seems to have drifted far from its title
- and is probably not in the right home
- (so perhaps move to mac ports [if you do, please make sure I am cc'd or whatever, because I do not monitor]
- maybe GCC issues for GCC 8 are better here ; https://github.com/iains/gcc-8-branch - since the branch is closed any fixes will be applied to my "vendor" branches).
Having said that, I'm not sure we're seeing a GCC issue here.
JFTR: The branch does work perfectly OK on powerpc-darwin9 :
the 10.3 release was configured and tested like so:/src-local/gcc-10/configure --prefix=/opt/iains/powerpc-apple-darwin9/gcc-10-3-toolchain --build=powerpc-apple-darwin9 --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=all
Thank you very much for detailed reply. Is this configuration with stock linker and assembler of 10.5.8 PPC? Or your rebuilt tools?
I will try building on 10.5.8 PPC exactly with your settings to make sure that works, and once successful, then will work on adapting it for 10.6 PPC.
P. S. I will update on the config and result of the build once back to office.
@barracuda156 -- if you would like to open a ticket on the MacPorts tracker and call it something like "libgcc - update to gcc8 (or newer) on systems less than 10.6" we will work with you on getting gcc built.
For the moment, you are really going around in circles here still.
Forget about 10.6 on PPC for the time being. Not only is is non-standard, but it will not work right with either gcc or cctools or ld64 without some knowledgable surgery, because what these tools expect to find on a 10.6 system (certain symbols in the system library for example) do not exist on 10.6 on PPC, and many things break / segfault / just don't work.
Your best bet to get smoothly started is to use an Intel system, something between 10.6 and 10.13 if you have it, and just learn how to build gcc correctly even one time. Once you have that, you can build a few different versions of gcc.
Once you know how to do that, you can try building gcc5 or something very simple on 10.5 PPC.
And once you can do that, you are ready to think about gcc8, gcc9, etc.
gcc11 is where it starts to get harder, because it won't build with the default toolchain on 10.5 PPC -- so don't even try that for now, until everything else is easy for you.
Forget about libtapi, etc, for the time being. You will spend dozens of hours on that, and you don't need to. When it comes time to build gcc11 on 10.5 PowerPC, you will use MacPorts updated cctools and ld64, but not before then!
by the end of this, you will be a big gcc expert. But right now, getting gcc5 to just build on a reasonably new Intel system would be a nice place to start.
@kencu I have actually built gcc11 on Catalina (outside Macports), used XcodeLegacy to extract PPC components and install them into Xcode 12.4 and then almost built cross-compiler for PCC with gcc11. It built but some tests fail.
I am very glad to hear! I hope you can build on that success!