On Wed, Oct 13, 2021 at 6:42 AM H.J. Lu <hjl.to...@gmail.com> wrote:
>
> On Wed, Oct 13, 2021 at 6:03 AM Richard Biener
> <richard.guent...@gmail.com> wrote:
> >
> > On Wed, Oct 13, 2021 at 2:56 PM H.J. Lu <hjl.to...@gmail.com> wrote:
> > >
> > > On Wed, Oct 13, 2021 at 5:45 AM Richard Biener
> > > <richard.guent...@gmail.com> wrote:
> > > >
> > > > On Thu, Sep 2, 2021 at 5:50 PM H.J. Lu <hjl.to...@gmail.com> wrote:
> > > > >
> > > > > Change in the v2 patch:
> > > > >
> > > > > 1. Disable static trampolines by default.
> > > > >
> > > > >
> > > > > GCC maintained a copy of libffi snapshot from 2009 and cherry-picked
> > > > > fixes
> > > > > from upstream over the last 10+ years. In the meantime, libffi
> > > > > upstream
> > > > > has been changed significantly with new features, bug fixes and new
> > > > > target
> > > > > support. Here is a set of patches to sync with libffi 3.4.2 release
> > > > > and
> > > > > make it easier to sync with libffi upstream:
> > > > >
> > > > > 1. Document how to sync with upstream.
> > > > > 2. Add scripts to help sync with upstream.
> > > > > 3. Sync with libffi 3.4.2. This patch is quite big. It is availale at
> > > > >
> > > > > https://gitlab.com/x86-gcc/gcc/-/commit/15e80c879c571f79a0e57702848a9df5fba5be2f
> > > > > 4. Integrate libffi build and testsuite with GCC.
> > > >
> > > > How did you test this? It looks like libgo is the only consumer of
> > > > libffi these days.
> > > > In particular go/libgo seems to be supported on almost all targets
> > > > besides
> > > > darwin/windows - did you test cross and canadian configurations?
> > >
> > > I only tested it on Linux/i686 and Linux/x86-64. My understanding is
> > > that
> > > the upstream libffi works on Darwin and Windows.
> > >
> > > > I applaud the attempt to sync to upsteam but I fear you won't get any
> > > > "review"
> > > > of this massive diff.
> > >
> > > I believe that it should just work. Our libffi is very much out of date.
> >
> > Yes, you can hope. And yes, our libffi is out of date.
> >
> > Can you please do the extra step to test one weird architecture, namely
> > powerpc64-aix which is available on the compile-farm?
>
> I will give it a try and report back.
>
> > If that goes well I think it's good to "hope" at this point (and plenty of
> > time to fix fallout until the GCC 12 release).
> >
> > Thus OK after the extra testing dance and waiting until early next
> > week so others can throw in a veto.
I tried to bootstrap GCC master branch on gcc119.fsffrance.org:
* MT/MODEL: 8284-22A *
* Partition: gcc119 *
* System: power8-aix.osuosl.org *
* O/S: AIX V7.2 7200-04-03-2038
I configured GCC with
--with-as=/usr/bin/as --with-ld=/usr/bin/ld
--enable-version-specific-runtime-libs --disable-nls
--enable-decimal-float=dpd --disable-libstdcxx-pch --disable-werror
--enable-__cxa_atexit --with-gmp=/opt/cfarm --with-mpfr=/opt/cfarm
--with-mpc=/opt/cfarm --with-isl=/opt/cfarm --prefix=/opt/freeware
--with-local-prefix=/opt/freeware --enable-languages=c,c++,go
I got
g++ -g -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W
-Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wmissing-format-at
tribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-
overlength-strings -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE -static-libstd
c++ -static-libgcc -Wl,-bbigtoc -Wl,-bmaxdata:0x40000000 -o build/genenums \
build/genenums.o build/read-md.o build/errors.o ../build-powerpc-ibm-aix7.2.
4.0/libiberty/libiberty.a
ld: 0711-317 ERROR: Undefined symbol: lexer_line
ld: 0711-317 ERROR: Undefined symbol: .yylex(char const**)
ld: 0711-317 ERROR: Undefined symbol: .yybegin(char const*)
ld: 0711-317 ERROR: Undefined symbol: lexer_toplevel_done
ld: 0711-317 ERROR: Undefined symbol: .yyend()
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
collect2: error: ld returned 8 exit status
Makefile:3000: recipe for target 'build/gengtype' failed
gmake[5]: *** [build/gengtype] Error 1
David, is there an instruction to bootstrap GCC on AIX?
Thanks.
--
H.J.
