On Sun, 19 May 2019 at 16:00, Timo Sintonen via D.gnu <d.gnu@puremagic.com> wrote: > > On Sunday, 19 May 2019 at 10:49:51 UTC, Mike Franklin wrote: > > On Sunday, 19 May 2019 at 06:54:14 UTC, Timo Sintonen wrote: > >> I am updating my toolset and libraries to GCC/GDC 9.1 release. > >> First impression is that druntime needs more work than with > >> previous versions. Many places to change and even compiler > >> crashes when compiling some files. > >> > >> Before I look further I want to ask if there has been any > >> testing with this target (cross compiler linux->arm-eabi). Is > >> it expected to work, not to work or not tested at all. > > > > Several months ago, I used this script > > (https://github.com/JinShil/native-gdc/blob/master/native-gdc.sh) to build > > a native GDC compiler. I then used that compiler by way of this script > > (https://github.com/JinShil/arm-none-eabi-gdc/blob/master/arm-none-eabi-gdc.sh) > > to build an arm-none-eabi cross-compiler from head. > > > > I then used that cross-compiler to build this ARM Cortex-M > > project (https://github.com/JinShil/stm32f42_discovery_demo). > > Everything worked fine. > > > > I don't know if that helps, but that's my experience for > > whatever it's worth. > > > > Mike > > As we know there is always three possible sources of failure: > - the compiler sources may have a bug > - my local tools (gcc binutils etc) may build a buggy compiler > - my use of the built compiler is wrong (compiler flags etc) > > This is what I currently use to build the compiler. C compilers > built with this are used in production. > > cat >file <<EOF > MULTILIB_OPTIONS += > mcpu=cortex-m0/mcpu=cortex-m0plus/mcpu=cortex-m3/mcpu=cortex-m4/mcpu=cortex-m7 > mfloat-abi=hard mfpu=fpv4-sp-d16 mfpu=fpv5-sp-d16 > MULTILIB_DIRNAMES += cortex-m0 cortex-m0plus cortex-m3 cortex-m4 > cortex-m7 hardfp fpv4 fpv5 > MULTILIB_REQUIRED += mcpu=cortex-m0 > MULTILIB_REQUIRED += mcpu=cortex-m0plus > MULTILIB_REQUIRED += mcpu=cortex-m3 > MULTILIB_REQUIRED += > mcpu=cortex-m4/mfloat-abi=hard/mfpu=fpv4-sp-d16 > MULTILIB_REQUIRED += > mcpu=cortex-m7/mfloat-abi=hard/mfpu=fpv5-sp-d16 > MULTILIB_EXTRA_OPTS += mthumb > > EOF > cp file gcc/gcc/config/arm/t-arm-elf > > rm -rf build-gcc > mkdir build-gcc > cd build-gcc > > ../gcc/configure --disable-bootstrap --disable-nls > --disable-werror \ > --target=arm-eabi --enable-languages=c,d \ > --without-isl --without-cloog \ > --enable-multilib --disable-libphobos \ > --disable-libstdcxx --disable-libssp --disable-libquadmath \ > --without-headers --with-newlib --with-system-zlib >
You could also use the new binaries I uploaded to compiler explorer for cross-checking whether the ICE is independently reproducible. https://explore.dgnu.org/z/WKKMCg I don't really expect any part of druntime to build on bare metal. Too much depends on libc being available. -- Iain
