linux-user: support writing floating-point registers to a core dump Write an NT_FPREGSET note for targets that opt in: a target_elf.h that defines HAVE_ELF_CORE_FPREGS and target_elf_fpregset_t, and supplies an elf_core_copy_fpregs() beside the existing elf_core_copy_regs(). Signed-off-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>