Cross compiler toolchain for linux, mac and windows

[motters]

Create linux, mac and windows cross compilers

See below for example:
https://link.springer.com/content/pdf/10.1007%2F978-1-4302-6838-3.pdf
https://www.intel.com/content/dam/www/public/us/en/documents/guides/galileo-quark-x1000-bsp-guide.pdf

[motters]

Linux and mac toolchains can now be exported.

Modified version of meta-mingw has created, where mingw binaries where update from v3 to v5 to ensure Qt could compile correctly.

However after looking at meta-darwin the following errors occur

ERROR: No recipes available for:
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-core/zlib/zlib_1.2.8.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/binutils/binutils-cross-canadian_2.24.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/gcc/gcc-cross-canadian_4.9.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/gcc/gcc-crosssdk-initial_4.9.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/gcc/gcc-crosssdk_4.9.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/gcc/gcc-runtime_4.9.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/gcc/libgcc_4.9.bbappend
  /home/electronics/Documents/meta-qutipi/vendor/meta-darwin/recipes-devtools/qemu/qemu_2.1.0.bbappend

After renaming the recipes to ensure they extend the correct meta layers the following errors occur

ERROR: ExpansionError during parsing /home/electronics/Documents/meta-qutipi/vendor/poky-rocko/meta/recipes-devtools/gcc/gcc-crosssdk_7.3.bb                                | ETA:  0:00:03
Traceback (most recent call last):
bb.data_smart.ExpansionError: Failure expanding variable EXTRA_OECONF_darwin[:=], expression was ${@oe_filter_out('--with-gnu-ld', '${@oe_filter_out('--with-linker-hash-style=sysv', '    --enable-clocale=generic     --with-gnu-ld     --enable-shared     --enable-languages=c,c++,objc     --enable-threads=posix     --disable-multilib          --enable-c99     --enable-long-long     --enable-symvers=gnu     --enable-libstdcxx-pch     --program-prefix=i386-pokysdk-darwin-     --without-local-prefix         --disable-lto     --enable-libssp     --enable-libitm     --disable-bootstrap     --disable-libmudflap     --with-system-zlib     --with-linker-hash-style=sysv     --enable-linker-build-id     --with-ppl=no     --with-cloog=no     --enable-checking=release     --enable-cheaders=c_global     --without-isl               --with-gxx-include-dir=/not/exist/opt/qutipi/2.4.2/sysroots/i386-pokysdk-darwin/usr/include/c++/7.3.0     --with-sysroot=/not/exist     --with-build-sysroot=/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot                --without-long-double-128       --enable-poison-system-directories     --with-mpfr=/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr     --with-system-zlib  --disable-static ${PACKAGECONFIG_CONFARGS} --disable-nls --enable-initfini-array', d)} --disable-static ${PACKAGECONFIG_CONFARGS} ${@gettext_oeconf(d)} --enable-initfini-array', d)} which triggered exception SyntaxError: invalid syntax (EXTRA_OECONF_darwin[:=], line 1)

[motters]

The above issue with meta-darwin was fixed by changing

EXTRA_OECONF_darwin = "${@oe_filter_out('--with-gnu-ld', '${EXTRA_OECONF}', d)}"
EXTRA_OECONF_darwin := "${@oe_filter_out('--enable-libssp', '${EXTRA_OECONF}', d)}"
EXTRA_OECONF_darwin := "${@oe_filter_out('--with-gxx-include-dir=${STAGING_DIR_TARGET}${target_includedir}/c\+\+', '${EXTRA_OECONF}', d)}"

to

EXTRA_OECONF_remove_darwin = "--with-gnu-ld"
EXTRA_OECONF_remove_darwin = "--enable-libssp"
EXTRA_OECONF_remove_darwin = '--with-gxx-include-dir=${STAGING_DIR_TARGET}${target_includedir}/c\+\+'

However this moves us onto the next error

ERROR: Nothing PROVIDES 'virtual/nativesdk-libc' (but /home/electronics/Documents/meta-qutipi/vendor/poky-rocko/meta/recipes-core/packagegroups/nativesdk-packagegroup-sdk-host.bb DEPENDS on or otherwise requires it)
nativesdk-glibc PROVIDES virtual/nativesdk-libc but was skipped: PREFERRED_PROVIDER_virtual/nativesdk-libc set to nativesdk-osx-runtime, not nativesdk-glibc
nativesdk-osx-runtime PROVIDES virtual/nativesdk-libc but was skipped: PREFERRED_PROVIDER_virtual/nativesdk-i386-pokysdk-darwin-libc-initial set to nativesdk-glibc-initial, not nativesdk-osx-runtime
NOTE: Runtime target 'nativesdk-packagegroup-sdk-host' is unbuildable, removing...
Missing or unbuildable dependency chain was: ['nativesdk-packagegroup-sdk-host', 'virtual/nativesdk-libc']
ERROR: Required build target 'meta-toolchain' has no buildable providers.
Missing or unbuildable dependency chain was: ['meta-toolchain', 'nativesdk-packagegroup-sdk-host', 'virtual/nativesdk-libc']

[motters]

Above error fixed, moving onto the next issue.

make[1]: Leaving directory '/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/libcpp'
make[1]: Entering directory '/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/fixincludes'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/fixincludes'
make[1]: Entering directory '/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/gcc'
/home/electronics/Documents/meta-qutipi/build/tmp/work-shared/gcc-7.3.0-r0/gcc-7.3.0/missing flex  -ogengtype-lex.c ../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc/gengtype-lex.l && { \
  echo '#include "bconfig.h"' > gengtype-lex.c.tmp; \
  cat gengtype-lex.c >> gengtype-lex.c.tmp; \
  mv gengtype-lex.c.tmp gengtype-lex.c; \
}
/home/electronics/Documents/meta-qutipi/build/tmp/work-shared/gcc-7.3.0-r0/gcc-7.3.0/missing: line 81: flex: command not found
WARNING: 'flex' is missing on your system.
         You should only need it if you modified a '.l' file.
         You may want to install the Fast Lexical Analyzer package:
         <http://flex.sourceforge.net/>
Makefile:2799: recipe for target 'gengtype-lex.c' failed
make[1]: [gengtype-lex.c] Error 127 (ignored)
echo timestamp > gcc.pod
perl ../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc/../contrib/texi2pod.pl ../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc/doc/invoke.texi > gcc.pod
g++  -c   -isystem/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr/include -O2 -pipe -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE   -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings  -Wno-error -DHAVE_CONFIG_H -DGENERATOR_FILE -fno-PIE -I. -Ibuild -I../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc -I../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc/build -I../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc/../include  -I../../../../../../../work-shared/gcc-7.3.0-r0/gcc-7.3.0/gcc/../libcpp/include -isystem/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr/include \
	-o build/gengtype-lex.o gengtype-lex.c
g++: error: gengtype-lex.c: No such file or directory
g++: fatal error: no input files
compilation terminated.
Makefile:2596: recipe for target 'build/gengtype-lex.o' failed
make[1]: *** [build/gengtype-lex.o] Error 1
make[1]: *** Waiting for unfinished jobs....
rm gcc.pod
make[1]: Leaving directory '/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/gcc'
Makefile:4211: recipe for target 'all-gcc' failed
make: *** [all-gcc] Error 2
ERROR: oe_runmake failed
WARNING: /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/temp/run.do_compile.1307:1 exit 1 from 'exit 1'
ERROR: Function failed: do_compile (log file is located at /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/temp/log.do_compile.1307)

[motters]

Above issue fixed, moving onto the next issue

checking whether ln -s works... yes
| checking for i386-pokysdk-darwin-gcc...  /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/./gcc/xgcc -B/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/./gcc/ -B/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr/i386-pokysdk-darwin/bin/ -B/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr/i386-pokysdk-darwin/lib/ -isystem /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr/i386-pokysdk-darwin/include -isystem /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot-native/usr/i386-pokysdk-darwin/sys-include --sysroot=/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/recipe-sysroot
| checking for suffix of object files... configure: error: in `/home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/gcc-7.3.0/build.x86_64-linux.i386-pokysdk-darwin/i386-pokysdk-darwin/libgcc':
| configure: error: cannot compute suffix of object files: cannot compile
| See `config.log' for more details.
| Makefile:11174: recipe for target 'configure-target-libgcc' failed
| make: *** [configure-target-libgcc] Error 1
| ERROR: oe_runmake failed
| WARNING: /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/temp/run.do_compile.11905:1 exit 1 from 'exit 1'
| ERROR: Function failed: do_compile (log file is located at /home/electronics/Documents/meta-qutipi/build/tmp/work/x86_64-linux/gcc-crosssdk-initial-i386-pokysdk-darwin/7.3.0-r0/temp/log.do_compile.11905)

[motters]

Mac compiler wont be exported any time soon.

From what i can gather, generating the init cross compiler Linux -> Darwin is the main problem. odcctools which is no longer maintained only supports gcc 4 and poky supports 6 & 7.

Possible way around is to use clang but is too much work for now.

[motters]

Over the past few days multiple issues have been fixed for the linux and windows sdk. Mainly to do with missing libraries and binaries.