A (slightly) ordered set of tasks for crosstool-NG. Written in a cryptic language; contact me if you want to help with any of these :) -- Alexey Neyman (@stilor) [ ] FreeBSD [ ] Use 'cc' rather than 'gcc' on the host [ ] Detect in configure what the default value is [ ] Allow passing via CC=... to ct-ng [ ] Same for ar/ld/ranlib/whatever we're using [ ] Same for other utilities (patch, python, ...) [ ] Allow using BSD patch [ ] Set up 3 testing VMs: plain (using clang), using default 'gcc', using 'gcc6' [ ] GDB7.1 build fails on macOS [ ] need 'cpp' in the list of symlinked tools [ ] still fails at link due to multiple definitions of BC/UP/PC [ ] mingw.sh: create a hook for "pre-checks" for all libcs [ ] move CT_DoMultilibList to this new hook? [ ] go over all config options and evaluate their applicability to cross/canadian/cross-native (i.e. WANTS_STATIC_LINK does not have to test build's support for static link) [ ] Remove per-arch patching (this makes .build/src non-sharable between builds!) [ ] Update "Internals" chapter in the docs to match current state [ ] Integrate openrisc support [ ] Re-enable shared libraries - can it be done without wrapper scripts, e.g. via rpath? [ ] 'ct-ng' source to disregard FORBID_DOWNLOADS and to avoid clobbering .build and build.log [ ] Restore blackfin/fdpic support? [ ] Install bash completion script - are there any default locations for it? [ ] Do we need "HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver" block in 100-gcc.sh? We do create a dummy libc.so [ ] Follow up on -static -Wl,--dynamic-list=... weirdness [ ] xldd.in [ ] Deduce root from the location of the script itself by default + option for multiroot selection (e.g. for SH) [ ] Handle CT_LD_LIBRARY_PATH in lieu of LD_LIBRARY_PATH [ ] Handle AT_SECURE [ ] Handle DT_RPATH/DT_RUNPATH separately (they have different priority vs LD_LIBRARY_PATH) [ ] Handle default ld_library_path after ld.so.conf cache [ ] Add optional removal of .build/src as part of build-all [ ] Add removal of non-precious toolchains (i.e. those that are not needed for canadian) [ ] Or remove all *when* they are no longer needed? [ ] GMP select the right CC when not cross-compiling (https://github.com/crosstool-ng/crosstool-ng/pull/627) [ ] Default to arch=i686 on x86 [ ] Run ct-ng oldconfig at the start, or detect if a different version of ct-ng has been used? [ ] Move fetching config.guess/config.sub to scripts/functions to use common wget/curl wrappers [ ] Allow auto-update as part of the build [ ] Do they have versions? Is it possible to request a specific version? [ ] Separate 'make check' for companion libs and companion tools? [ ] gettext - test internationalization [ ] seems the DB is hardcoded into .build//... location - is it possible to make it relocatable? [ ] add passthrough to configure, for host/target [ ] Read/spellcheck configs & scripts [ ] 'ct-ng olddefconfig' [ ] Install a "trap" C++ compiler as ${CT_TARGET}-g++ during pass-1/pass-2 to trap attempts to compile target code with g++ (currently glibc detects host g++ and warns that it uses g++ w/o target triplet) [ ] Somehow it needs to be functional during the configure step - export env var while running in CT_DoExecLog with CFG level, and forward it to host compiler? [ ] elf2flt not compatible with multiple linkers enabled in binutils (ld.bfd + ld.gold) - fix upstream? [ ] Companion libs [ ] Group options into submenus [ ] Allow building [companion] target libs (and tools, like gdbserver or native gdb or strace) for all multilibs [ ] Install companion libs into a multi-os-directory for the default multilib [ ] Perhaps remove the distinction between multi_os_dir/multi_os_dir_gcc and use gcc-reported dir always, and rely on "demultilib" to combine them if possible [ ] Check for python-devel to enable cross-gdb python bindings [ ] Common location for sources provided by ctng - duma.in, gdbinit.in, uclibc{,-ng}-config.in ... [ ] CTNG_LD_IS=bfd has no effect on subsequent build steps, as each step runs in its own environment [ ] Enable other languages in some sample(s): [ ] Ada (?) - requires gnatbind/gnatmake on the host [X] Seems to build [ ] Try to run [ ] Obj-C/C++ [X] Seems to build [ ] Try to run - seems to crash, need to investigate [ ] Go [ ] Fix the build [ ] Try to run [ ] #516 Building with GO support fails [ ] #521 gccgo - i586-unknown-linux-gnu - fails on missing version.go [ ] Smoke-test test suite - whatever is supported by a particular toolchain [ ] Compile baremetal, shared, static, static-libgcc, static-libstdc, C++, Fortran, Ada, Obj-C, Obj-C++, multilibs [ ] Disallow libc selections that cannot handle the arch (e.g. aarch64-*-uclibc, aarch64-*-musl, ...) [ ] Support removal of .build//build after each step (to save space while compiling in a VM; and to test restartability - since this directory is lost after restart) [ ] Configure enhancements [ ] What is --host= in ct-ng's configure used for? should it set the default canadian cross? [ ] CFLAGS/LDFLAGS from configure should probably be added into default build flags [ ] Move tool checks from configure to runtime (i.e. if xz was installed after crosstool-ng, it should be usable) [ ] Check for companion libs and allow using host's libraries for native/cross (need to check if the host has them) - but allow them to be selected for build [ ] Merge aggregator scripts like cc.sh, debug.sh etc [ ] #534 Merge gcc backends in 100-gcc.sh [ ] Currently some options (e.g. plugins) are not supported in core backend, hence aren't available on baremetal configurations [ ] Support clang [ ] Generate per-package version Kconfig fragments, and include them [ ] Add a script to poll for new releases [ ] Install a single lib/ directory with all the stuff needed - scripts, makefile fragments, etc [ ] Separate maintainer's scripts from the scripts used by crosstool-ng itself [ ] Commit testing.py to the new maintainer's dir [ ] Add an ability to do a single run of testing.py? or just use build-all, when the branch for separate canadian install is done [ ] Extensibility to allow custom kernel headers and/or libc [ ] Support elfkickers [ ] Make cross-native toolchain non-experimental [ ] Rework dependency order to suit xnative toolchain too [ ] Make native/cross-native toolchain non-experimental [ ] Pick up libc from host for native [ ] Optimize steps to not require simple-cross for cross-native [ ] Make supplemental commands like show-config leave .config and .build alone [ ] Test populate script [ ] 3rd party extensions to GCC [ ] GHDL seems to be active and supports GCC6 [ ] COBOL? Cannot find which GCC version they need [http://cobolforgcc.sourceforge.net/] [ ] At the very least they have an awesome guide to GCC internals: http://cobolforgcc.sourceforge.net/cobol_14.html; might just as well reference it in our docs [ ] Modula-2 supports GCC 4.7 as the latest [ ] Resurrect GCC4.7? [ ] readelf: DWARF parser does not handle DW_CFA_remember_state/DW_CFA_restore_state [ ] Support uClibc++?