process_write_fpregs
error = process_write_fpregs(lt, fpregs, sizeof fpregs);
w = (ptrace_regwfunc_t)process_write_fpregs;
int process_write_fpregs(struct lwp *, const struct fpreg *, size_t);
#define process_write_fpregs32 process_write_fpregs
#define process_write_fpregs64 process_write_fpregs