Hello Stephen,
Please file a bug report (or several) in our bug tracker.
Maarten
> Hello Maarten,
> Thank you for pointing me towards looking at the driver's output more
> closely.
> I eventually narrowed things down. In sdcc/device/lib/pic16/configure.ac
> (and evidently in the corresponding configure script) we have
>
> line 60: AC_SUBST(CCAS, [\'$CCAS\'])
>
> This means that the build system determines CCAS to be /mingw64/bin/gpasm
> which is then wrapped in single quotes as '/mingw64/bin/gpasm' *before*
> other calls append an exe file extension. As a result the command is
> "'/mingw64/bin/gpasm'.exe "(double quotes excluded).
>
> In SDCCsystem.c:66 we have:
> switch (*p)
> {
> case '\'':
> <snip>
>
> which is splitting the string into a command at the quotation mark as a
> delimiter, leaving .exe as part of the arguments.
>
> get_path in SDCCsystem.c:201 then adds an extra ".exe" onto our now
> extension-less command, which is then merged in with our arguments, so the
> compiler driver attempts to execute
>
> "/mingw64/bin/gpasm.exe .exe <options>" which obviously fails.
>
> Commenting out the AC_SUBST line in the pic14, pic16, and non-free pic16
> configure files allows compilation to succeed, with one small caveat:
> the driver also calls sdcpp.exe as part of compiling the pic14/16 device
> libraries - sdcpp has just been built and is therefore not in the PATH.
> I have worked around this by temporarily setting the root sdcc source
> directory as SDCC_HOME, but evidently this is sub-optimal.
> Is there a way to tell sdcc it is being run during an SDCC compilation,
> and
> so it should look within its own folder? Should I be building SDCC in two
> stages instead?
> With regards to the commented lines - does wrapping the executable in
> single quotes serve a purpose? Is it worth me sending in a patch for the
> changes?
>
>
> Secondly, in my original post I indicated that STM8 support was building
> OK. Unfortunately this is not the case, but the build process doesn't
> error
> out.
>
> ../../../bin/sdar -rcD ../build/stm8/stm8.lib setjmp.rel _mulint.rel
> __mulsint2slong.rel _divsint.rel _modsint.rel _mullong.rel _divulong.rel
> _modulong.rel _divslong.rel _modslong.rel _fast_long_neg.rel heap.rel
> strcpy.rel strcmp.rel memcpy.rel _atof.rel _schar2fs.rel _sint2fs.rel
> _slong2fs.rel _uchar2fs.rel _uint2fs.rel _ulong2fs.rel _fs2schar.rel
> _fs2sint.rel _fs2slong.rel _fs2uchar.rel _fs2uint.rel _fs2ulong.rel
> _fsadd.rel _fsdiv.rel _fsmul.rel _fssub.rel _fseq.rel _fsgt.rel _fslt.rel
> _fsneq.rel fabsf.rel frexpf.rel ldexpf.rel expf.rel powf.rel sincosf.rel
> sinf.rel cosf.rel logf.rel log10f.rel sqrtf.rel tancotf.rel tanf.rel
> cotf.rel asincosf.rel asinf.rel acosf.rel atanf.rel atan2f.rel
> sincoshf.rel
> sinhf.rel coshf.rel tanhf.rel floorf.rel ceilf.rel modff.rel errno.rel
> isinf.rel isnan.rel _mulschar.rel _divschar.rel _modschar.rel
> _rrulonglong.rel _rrslonglong.rel _rlulonglong.rel _rlslonglong.rel
> _mullonglong.rel _divslonglong.rel _divulonglong.rel _modslonglong.rel
> _modulonglong.rel isalnum.rel isalpha.rel isblank.rel iscntrl.rel
> isdigit.rel isgraph.rel islower.rel isprint.rel ispunct.rel isspace.rel
> isupper.rel isxdigit.rel tolower.rel toupper.rel atoi.rel atol.rel
> atoll.rel abs.rel labs.rel rand.rel _strcat.rel _strchr.rel _strcspn.rel
> _strncat.rel _strncmp.rel strxfrm.rel _strncpy.rel _strpbrk.rel
> _strrchr.rel _strspn.rel _strstr.rel _strtok.rel _memchr.rel _memcmp.rel
> _memset.rel aligned_alloc.rel calloc.rel malloc.rel realloc.rel free.rel
> mblen.rel mbtowc.rel wctomb.rel mbstowcs.rel wcstombs.rel mbrtoc16.rel
> c16rtomb.rel mbrtoc32.rel c32rtomb.rel wcscmp.rel wcslen.rel btowc.rel
> wctob.rel mbsinit.rel mbrlen.rel mbrtowc.rel wcrtomb.rel printf_large.rel
> puts.rel gets.rel assert.rel time.rel _itoa.rel _ltoa.rel _startup.rel
> _strlen.rel _memmove.rel sprintf.rel vprintf.rel
> make[5]: *** [Makefile:66: ../build/stm8/stm8.lib] Segmentation fault
> make[5]: *** Deleting file '../build/stm8/stm8.lib'
> make[5]: Leaving directory '/c/source/sdcc/sdcc/device/lib/stm8'
> make[4]: [Makefile:408: port-specific-objects] Error 2 (ignored)
>
> <compilation continues>
>
> Through a process of elimination I was able to determine that the segfault
> is caused by any of the .rel files from _atof.rel onwards. For example:
>
> $ ../../../bin/sdar -rcD ../build/stm8/stm8.lib vprintf.rel
> Segmentation fault
>
> This looks similar to "#1903 compile of library file cause seg violation"
> (that one also mentions _atof.rel). Would you like me to raise a ticket
> for
> it, start another email thread (given the issues are both mingw related,
> but target different architectures) or shall we continue the discussion
> here alongside the other MINGW compilation issue?
>
> Thanks,
>
> Stephen
>
>
>
>
>
> On Mon, May 15, 2017 at 1:44 AM, Maarten Brock <sourceforge.br...@dse.nl>
> wrote:
>
>> > Hello everybody,
>> > Running into a strange issue trying to compile SDCC with the msys2
>> > environment.
>> > I've successfully downloaded gputils from source and compiled:
>> >
>> > $ gcc -v
>> >
>> > <snip>
>> > gcc version 6.3.0 (Rev2, Built by MSYS2 project)
>> > $ gpasm -v
>> >
>> > gpasm-1.5.0
>> > #1285
>> > (Apr 28 2017)
>> >
>> > I configured SDCC using the following command line
>> >
>> > ./configure --disable-mcs51-port --disable-z80-port
>> --disable-z180-port
>> > --disable-r2k-port --disable-r3ka-port --disable-gbz80-port
>> > --disable-tlcs90-port --disable-ds390-port --disable-ds400-port
>> > --disable-hc08-port --disable-s08-port --disable-ucsim
>> > (essentially, enable stm8 and PIC but nothing else)
>> > STM8 and pic14 seem to build without errors, but it looks like
>> something
>> > in
>> > the pic16 lib is invoking gpasm incorrectly, as all of the 18f* file
>> > command lines result in the usage information for gpasm being printed
>> and
>> > the build consequently fails with missing object files.
>> > The error lines all have the following format:
>> >
>> > source='fake_sspbuf.c' object='libdev18f1220_a-fake_sspbuf.o'
>> libtool=no \
>> > DEPDIR=.deps depmode=none /bin/sh ../depcomp \
>> > '/c/source/sdcc/device/non-free/lib/pic16//../../../../bin/sdcc'
>> > -DHAVE_CONFIG_H -I. -I.. -I. -I../../../../include/pic16
>> > -I../../../../non-free/include/pic16 -p18f1220 --std-c99
>> > --asm="'/mingw64/bin/gpasm'" --no-warn-non-free --fomit-frame-pointer
>> > --obanksel=9 --denable-peeps --optimize-cmp --optimize-df
>> --i-code-in-asm
>> > -DUSE_FLOATS=0 -mpic16 -p18f452 -c -o libdev18f1220_a-fake_sspbuf.o
>> `test
>> > -f 'fake_sspbuf.c' || echo './'`fake_sspbuf.c
>> >
>> > Usage: gpasm [options] file
>> > Options: [defaults in brackets after descriptions]
>> > -a FMT, --hex-format FMT Select hex file format. [inhx32]
>> > -c, --object Output relocatable object.
>> > <gpasm usage info follows>
>> >
>> >
>> > Build fails much later with error:
>> > error: "libdev18f1220_a-pic18f1220.o" is not a valid object file
>> >
>> > Does anybody have any suggestions for how I can diagnose this?
>> > Thanks,
>> > Stephen
>>
>> Hello Stephen,
>>
>> Can you modify the makefile to make SDCC more verbose using --verbose ?
>> It
>> will print the way gpasm is called.
>>
>> Maarten
>>
>>
>>
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