static void target_setup_frame(int usig, struct target_sigaction *ka, target_siginfo_t *info, target_sigset_t *set, CPUARMState *env) { struct target_rt_sigframe *frame; abi_ulong frame_addr, return_addr; frame_addr = get_sigframe(ka, env); if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { goto give_sigsegv; } __put_user(0, &frame->uc.tuc_flags); __put_user(0, &frame->uc.tuc_link); __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp); __put_user(sas_ss_flags(env->xregs[31]), &frame->uc.tuc_stack.ss_flags); __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size); target_setup_sigframe(frame, env, set); if (ka->sa_flags & TARGET_SA_RESTORER) { return_addr = ka->sa_restorer; } else { /* mov x8,#__NR_rt_sigreturn; svc #0 */ __put_user(0xd2801168, &frame->tramp[0]); __put_user(0xd4000001, &frame->tramp[1]); return_addr = frame_addr + offsetof(struct target_rt_sigframe, tramp); } env->xregs[0] = usig; env->xregs[31] = frame_addr; env->xregs[29] = env->xregs[31] + offsetof(struct target_rt_sigframe, fp); env->pc = ka->_sa_handler; env->xregs[30] = return_addr; if (info) { if (copy_siginfo_to_user(&frame->info, info)) { goto give_sigsegv; } env->xregs[1] = frame_addr + offsetof(struct target_rt_sigframe, info); env->xregs[2] = frame_addr + offsetof(struct target_rt_sigframe, uc); } unlock_user_struct(frame, frame_addr, 1); return; give_sigsegv: unlock_user_struct(frame, frame_addr, 1); force_sig(TARGET_SIGSEGV); }