JJ <alchemistmba@xxxxxxxxx> writes: >> _aeabi_unwind_cpp_pr1 is normally defined in libgcc. If the undefined >> reference is coming from libc, then you need to use -lgcc -lc -lgcc >> (and, yes, sometimes you need -lgcc -lc -lgcc -lc -lgcc, which you can >> also write as -Wl,--start-group,-lgcc,-lc,--end-group). > > It still complains about _aeabi_unwind_cpp_pr1. If I use only -lgcc, > the linker complains about both "_aeabi_unwind_cpp_pr1" > "__cxa_end_cleanup" as well as "memset". I added the -lc option to get > rid of the "memset" undefined reference error. Does your libgcc define _aeabi_unwind_cpp_pr1? If not, then you will need to figure out why it doesn't. It should normally be defined in an arm-eabi libgcc. >> __cxa_end_cleanup is normally defined lib libsupc++. Since you are >> linking C++ code with -nodefaultlibs, you probably need an explicit >> -lsupc++. > > When I add this option, it complains about many more standard symbols: > strlen, free, malloc, __aeabi_unwind_cpp_pr0, __cxa_pure_virtual etc. You may need to write your own __cxa_end_cleanup. Ian
