On 12/16/19 10:31 PM, Sebastian Huber wrote: > > Which packages did you install?
The entry point is "llvm-dev". > aptitude search llvm|grep ^i > i A libllvm6.0 - Modular compiler and toolchain technologies, runtime library > i A libllvm7 - Modular compiler and toolchain technologies, runtime library > i A libllvm7:i386 - Modular compiler and toolchain technologies, runtime > library > i A llvm - Low-Level Virtual Machine (LLVM) > i A llvm-7 - Modular compiler and toolchain technologies > i A llvm-7-dev - Modular compiler and toolchain technologies, libraries and > headers > i A llvm-7-runtime - Modular compiler and toolchain technologies, IR > interpreter > i llvm-dev - Low-Level Virtual Machine (LLVM), libraries and headers > i A llvm-runtime - Low-Level Virtual Machine (LLVM), bytecode interpreter > $ llvm-config --version > 7.0.1 > $ llvm-config --cxxflags > -I/usr/lib/llvm-7/include -fno-exceptions -D_GNU_SOURCE > -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS > $ llvm-config --ldflags > -L/usr/lib/llvm-7/lib > $ llvm-config --libs > -lLLVM-7 > It seems you have the header files, but no library was found. Maybe we should > only build the LLVM dependent features if both everything is present. "/usr/lib/llvm-7/lib/libLLVM.so" exists (also "libLLVM-7.so"), so presumably the -L search path isn't correct. > It seems to be a bit more complicated: > > https://lowlevelbits.org/building-an-llvm-based-tool.-lessons-learned/ This is an understatement. I did at one point explore using LLVM. The advice I found at the time was to use the static libraries which I remember as a nightmare of interdependencies. I'm not even slightly surprised to see missing symbols w/ LLVM. llvm-config certainly helps with this. It's a pity I didn't find out about '--start-group' until later. > $ ls -1 /usr/lib/llvm-7/lib/lib*|wc -l > 234 (full disclosure, I also have libclang-dev installed) > Please have a look at: > > https://lists.rtems.org/pipermail/devel/2019-December/056517.html This looks like the right idea, though I'm not sure how to test it. I guess it will be in the next snapshot? _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
