Hi Alexander, > I write ELF support for my target but none of backend functions is not > called (elf_backend_object_p, elf_backend_relocate_section, ...). What > could be the problem? Most likely problem - you are not #include'ing elf32-target.h (or elf64-target.h if yours is a 64-bit target) *after* defining the elf backend functions. Cheers Nick