name: buildperlwasm on: workflow_dispatch env: URLPERL: https://www.cpan.org/src/5.0/perl-5.40.0.tar.gz EMSCRIPTEN_VERSION: 3.1.73 jobs: buildperlwasm: runs-on: ubuntu-24.04 steps: - uses: actions/checkout@v4 - name: Setup Emscripten uses: mymindstorm/setup-emsdk@v13 with: version: ${{env.EMSCRIPTEN_VERSION}} - name: Install Perl static native shell: bash run: |  mkdir native && curl -L $URLPERL | tar -xzf - --strip-components=1 --directory=native  cd native && BUILD_ZLIB=0 sh +x ./Configure -sde -Dman1dir=none -Dman3dir=none -Dprefix="$PWD/prefix" -Dusedevel -Uversiononly -Dlibs="-lpthread -ldl -lm -lutil -lc -lz" -Dstatic_ext="mro Devel/Peek File/DosGlob File/Glob Sys/Syslog Sys/Hostname PerlIO/via PerlIO/mmap PerlIO/encoding B attributes Unicode/Normalize Unicode/Collate threads threads/shared IPC/SysV re Digest/MD5 Digest/SHA SDBM_File Math/BigInt/FastCalc Data/Dumper I18N/Langinfo Time/HiRes Time/Piece IO Socket Hash/Util/FieldHash Hash/Util Filter/Util/Call POSIX Encode/Unicode Encode Encode/JP Encode/KR Encode/EBCDIC Encode/CN Encode/Symbol Encode/Byte Encode/TW Compress/Raw/Zlib Compress/Raw/Bzip2 MIME/Base64 Cwd Storable List/Util Fcntl Opcode" && cd -  make -C native  make -C native install   - name: Heredoc run: |  cat <<'EOF' > patch.sh  d_perl_lc_all_uses_name_value_pairs="$undef"  d_perl_lc_all_separator="$undef"  perl_lc_all_separator=  d_perl_lc_all_category_positions_init="$undef";  perl_lc_all_category_positions_init=  EOF  cat <<'EOF' > hintfile_wasm.sh  #2020-11-29T00:24:34.8505712Z warning: undefined symbol: __stack_chk_fail (referenced by top-level compiled C/C++ code)  #2020-11-29T00:24:34.8573524Z warning: undefined symbol: sigsuspend (referenced by top-level compiled C/C++ code)   # ##### WebPerl - http://webperl.zero-g.net #####  #  # Copyright (c) 2018 Hauke Daempfling (haukex@zero-g.net)  # at the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB),  # Berlin, Germany, http://www.igb-berlin.de  #  # This program is free software; you can redistribute it and/or modify  # it under the same terms as Perl 5 itself: either the GNU General Public  # License as published by the Free Software Foundation (either version 1,  # or, at your option, any later version), or the "Artistic License" which  # comes with Perl 5.  #  # This program is distributed in the hope that it will be useful, but  # WITHOUT ANY WARRANTY; without even the implied warranty of  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  # See the licenses for details.  #  # You should have received a copy of the licenses along with this program.  # If not, see http://perldoc.perl.org/index-licence.html    osname="emscripten"  archname="wasm"  osvers="2.0.5"   myhostname='localhost'  mydomain='.local'  cf_email='haukex@zero-g.net'  perladmin='root@localhost'   #TODO: almost all of the known_extensions are still being built. we should probably exclude some of them! (see also nonxs_ext)  # [arybase attributes B Compress/Raw/Bzip2 Compress/Raw/Zlib Cwd Data/Dumper  # Devel/Peek Devel/PPPort Digest/MD5 Digest/SHA Encode Fcntl File/DosGlob  # File/Glob Filter/Util/Call Hash/Util Hash/Util/FieldHash I18N/Langinfo IO  # List/Util Math/BigInt/FastCalc MIME/Base64 mro Opcode PerlIO/encoding  # PerlIO/mmap PerlIO/scalar PerlIO/via POSIX re SDBM_File Socket Storable  # Sys/Hostname Sys/Syslog threads threads/shared Tie/Hash/NamedCapture  # Time/HiRes Time/Piece Unicode/Collate Unicode/Normalize XS/APItest XS/Typemap]  #TODO Later: Reinsert Storable after Socket, its Makefile seems to not work in our environment  static_ext="attributes B Cwd Data/Dumper Devel/Peek Digest/MD5 Digest/SHA Encode Fcntl File/Glob Hash/Util I18N/Langinfo IO List/Util mro Opcode PerlIO/encoding PerlIO/scalar PerlIO/via POSIX re SDBM_File Socket Tie/Hash/NamedCapture Time/HiRes Time/Piece Unicode/Normalize"  dynamic_ext=''  noextensions='IPC/SysV'   cc="emcc"  ld="emcc"   #nm="`which llvm-nm`" # note from Glossary: 'After Configure runs, the value is reset to a plain "nm" and is not useful.'  ar="`which emar`" # note from Glossary: 'After Configure runs, the value is reset to a plain "ar" and is not useful.'  ranlib="`which emranlib`"   # Here's a fun one: apparently, when building perlmini.c, emcc notices that it's a symlink to perl.c, and compiles to perl.o  # (because there is no -o option), so the final perl ends up thinking it's miniperl (shown in "perl -v", @INC doesn't work, etc.).  # Because of this and other issues I've had with symlinks, I'm switching to hard links instead.  # (Another possible fix might be to fix the Makefile steps so that they use the -o option, but this solution works for now.)  #TODO Later: In NODEFS, does Perl's -e test work correctly on symlinks? (./t/TEST was having issues detecting ./t/perl, a symlink to ./perl).  lns="/bin/ln"   prefix="/opt/perl"  inc_version_list="none"   man1dir="none"  man3dir="none"   loclibpth=''  glibpth=''   usemymalloc="n"  uselargefiles="n"  usenm='undef'   usemallocwrap="define"  d_procselfexe='undef'  d_dlopen='undef'  d_setlocale='undef'  dlsrc='none'  d_getgrgid_r='define'  d_getgrnam_r='define'  d_libname_unique="define"  d_getnameinfo='define'   d_setrgid='undef'  d_setruid='undef'  d_setproctitle='undef'  d_malloc_size='undef'  d_malloc_good_size='undef'  d_fdclose='undef'   #d_prctl='define' # hm, it's present in the libc source, but Configure shows Emscripten error output? -> for now, assume it's not available   # It *looks* like shm*, sem* and a few others exist in Emscripten's libc,  # but I'm not sure why Configure isn't detecting them. But at the moment I'm not going  # to worry about them, and just not build IPC-SysV.  d_clearenv='undef'  d_cuserid='undef'  d_eaccess='undef'  d_getspnam='undef'  d_msgctl='undef'  d_msgget='undef'  d_msgrcv='undef'  d_msgsnd='undef'  d_semget='undef'  d_semop='undef'  d_shmat='undef'  d_shmctl='undef'  d_shmdt='undef'  d_shmget='undef'  d_syscall='undef'    # Emscripten does not have signals support (documentation isn't 100% clear on this? but see "$EMSCRIPTEN/system/include/libc/setjmp.h")  # but if you do: grep -r 'Calling stub instead of' "$EMSCRIPTEN"  # you'll see the unsupported stuff (as of 1.37.35):  # signal() sigaction() sigprocmask() __libc_current_sigrtmin __libc_current_sigrtmax kill() killpg() siginterrupt() raise() pause()  # plus: "Calling longjmp() instead of siglongjmp()"  d_sigaction='undef'  d_sigprocmask='undef'  d_killpg='undef'  d_pause='undef'  d_sigsetjmp='undef' # this also disables Perl's use of siglongjmp() (see config.h)  # the others either aren't used by Perl (like siginterrupt) or can't be Configure'd (like kill)  #TODO Later: currently I've disabled Perl's use of signal() by patching the source - maybe there's a better way?   # Emscripten doesn't actually have these either (see "$EMSCRIPTEN/src/library.js")  d_wait4='undef'  d_waitpid='undef'  d_fork='define' # BUT, perl needs this one to at least build  d_vfork='undef'  d_pseudofork='undef'   i_pthread='undef'  d_pthread_atfork='undef'  d_pthread_attr_setscope='undef'  d_pthread_yield='undef'   # We're avoiding all the 64-bit stuff for now.  # Commented out stuff is correctly detected.  #TODO: JavaScript uses 64-bit IEEE double FP numbers - will Perl use those?  #TODO: Now that we've switched to WebAssembly, can we use 64 bits everywhere?  # see https://groups.google.com/forum/#!topic/emscripten-discuss/nWmO3gi8_Jg  #use64bitall='undef'  #use64bitint='undef'  #usemorebits='undef'  #usequadmath='undef'  #TODO Later: Why does Configure seem to ignore the following? (and do we care?)  d_quad='undef'   #TODO Later: The test for "selectminbits" seems to fail,  # the error appears to be coming from this line (because apparently stream.stream_ops is undefined):  # https://github.com/kripken/emscripten/blob/ddfc3e32f65/src/library_syscall.js#L750  # For now, just use this number from a build with an earlier version where this didn't fail:  selectminbits='32'  alignbytes='4'    optimize="-O2"    ldflags="$ldflags -lm -O2 -s NO_EXIT_RUNTIME=1 -s ALLOW_MEMORY_GROWTH=1 -Wno-almost-asm"  ldflags="$ldflags -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s WASM=1"   # the following is needed for the "musl" libc provided by emscripten to provide all functions  ccflags="$ccflags -D_GNU_SOURCE -D_POSIX_C_SOURCE"  # from Makefile.emcc / Makefile.micro  ccflags="$ccflags -DSTANDARD_C -DPERL_USE_SAFE_PUTENV -DNO_MATHOMS"  # disable this warning, I don't think we need it - TODO: how to append this after -Wall?  ccflags="$ccflags -Wno-null-pointer-arithmetic"    # Configure apparently changes "-s ASSERTIONS=2 -s STACK_OVERFLOW_CHECK=2" to "-s -s" when converting ccflags to cppflags  # this is the current hack/workaround: copy cppflags from config.sh and fix it (TODO Later: better way would be to patch Configure)  cppflags='-lm -s ERROR_ON_UNDEFINED_SYMBOLS=0 -D_GNU_SOURCE -D_POSIX_C_SOURCE -DSTANDARD_C -DPERL_USE_SAFE_PUTENV -DNO_MATHOMS -Wno-null-pointer-arithmetic -fno-strict-aliasing -pipe -fstack-protector-strong -I/usr/local/include'   libs='-lm'  EOF   - name: Install Perl static wasm shell: bash run: |  mkdir wasm && curl -L $URLPERL | tar -xzf - --strip-components=1 --directory=wasm  cp hintfile_wasm.sh wasm/hints/emscripten.sh  # https://github.com/Perl/perl5/issues/22728  sed -i -e "17836r patch.sh" ./wasm/Configure  cd wasm  emconfigure bash ./Configure -sde -Dhintfile=emscripten -Dsysroot=$(dirname $(which emcc))/system -Dhostperl=$PWD/../native/miniperl -Dhostgenerate=$PWD/../native/generate_uudmap -Dprefix=$PWD/prefix  sed -i 's/$(generated_pods)//' Makefile  emmake make perl  emmake make install