Re: [PATCH, Modula-2 (C/C++/D/F/Go/Jit)] (Register spec fn) (v2)

[Matthias Klose <doko at ubuntu dot com>]

On 08.07.19 23:19, Matthias Klose wrote:
> On 14.06.19 15:09, Gaius Mulley wrote:
>>
>> Hello,
>>
>> here is version two of the patches which introduce Modula-2 into the
>> GCC trunk.  The patches include:
>>
>>   (*)  a patch to allow all front ends to register a lang spec function.
>>        (included are patches for all front ends to provide an empty
>>         callback function).
>>   (*)  patch diffs to allow the Modula-2 front end driver to be
>>        built using GCC Makefile and friends.
>>
>> The compressed tarball includes:
>>
>>   (*)  gcc/m2  (compiler driver and lang-spec stuff for Modula-2).
>>        Including the need for registering lang spec functions.
>>   (*)  gcc/testsuite/gm2  (a Modula-2 dejagnu test to ensure that
>>        the gm2 driver is built and can understands --version).
>>
>> These patches have been re-written after taking on board the comments
>> found in this thread:
>>
>>    https://gcc.gnu.org/ml/gcc-patches/2013-11/msg02620.html
>>
>> it is a revised patch set from:
>>
>>    https://gcc.gnu.org/ml/gcc-patches/2019-06/msg00220.html
>>
>> I've run make bootstrap and run the regression tests on trunk and no
>> extra failures occur for all languages touched in the ChangeLog.
>>
>> I'm currently tracking gcc trunk and gcc-9 with gm2 (which works well
>> with amd64/arm64/i386) - these patches are currently simply for the
>> driver to minimise the patch size.  There are also > 1800 tests in a
>> dejagnu testsuite for gm2 which can be included at some future time.
> 
> I had a look at the GCC 9 version of the patches, with a build including a make
> install. Some comments:

Had a test build based on the gcc-9 branch,
https://launchpad.net/~doko/+archive/ubuntu/toolchain/+sourcepub/10331180/+listing-archive-extra

powerpc64le-linux-gnu fails to build (search for "unfinished" in the build log)

during RTL pass: final
../../src/gcc/gm2/gm2-libs-coroutines/SYSTEM.def: In function '_M2_SYSTEM_init':
../../src/gcc/gm2/gm2-libs-coroutines/SYSTEM.def:20: internal compiler error: in
rs6000_output_function_epilogue, at conf
ig/rs6000/rs6000.c:29169
   20 | DEFINITION MODULE SYSTEM ;
      |
0x10b6b7c7 rs6000_output_function_epilogue
        ../../src/gcc/config/rs6000/rs6000.c:29169
0x1043f80f final_end_function()
        ../../src/gcc/final.c:1887
0x10445313 rest_of_handle_final
        ../../src/gcc/final.c:4667
0x10445313 execute
        ../../src/gcc/final.c:4737
Please submit a full bug report,
with preprocessed source if appropriate.

this is using GCC 8 as the bootstrap compiler.

search the build logs for "test_summary" to see the test results.  The binary
packages gcc-9-test-results contain the log/sum files for the tests.

all the link tests fail with:

xgm2: fatal error: cannot execute 'gm2l': execvp: No such file or directory
compilation terminated.
compiler exited with status 1

Matthias