asmlinkage long sys32_rt_sigreturn(void) { struct pt_regs *regs = current_pt_regs(); struct rt_sigframe_ia32 __user *frame; sigset_t set; frame = (struct rt_sigframe_ia32 __user *)(regs->sp - 4); if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) goto badframe; set_current_blocked(&set); if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; if (compat_restore_altstack(&frame->uc.uc_stack)) goto badframe; return regs->ax; badframe: signal_fault(regs, frame, "32bit rt sigreturn"); return 0; }
asmlinkage long sys32_rt_sigreturn(void) { struct pt_regs *regs = task_pt_regs(current); rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15]; sigset_t set; if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) goto badframe; set_current_blocked(&set); if (restore_sigregs32(regs, &frame->uc.uc_mcontext)) goto badframe; if (restore_sigregs_gprs_high(regs, frame->gprs_high)) goto badframe; if (compat_restore_altstack(&frame->uc.uc_stack)) goto badframe; return regs->gprs[2]; badframe: force_sig(SIGSEGV, current); return 0; }
asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) { struct rt_sigframe32 __user *frame; sigset_t set; int sig; frame = (struct rt_sigframe32 __user *) regs.regs[29]; if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__copy_conv_sigset_from_user(&set, &frame->rs_uc.uc_sigmask)) goto badframe; set_current_blocked(&set); sig = restore_sigcontext32(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) goto badframe; else if (sig) force_sig(sig, current); if (compat_restore_altstack(&frame->rs_uc.uc_stack)) goto badframe; /* * Don't let your children do this ... */ __asm__ __volatile__( "move\t$29, %0\n\t" "j\tsyscall_exit" :/* no outputs */ :"r" (®s)); /* Unreached */ badframe: force_sig(SIGSEGV, current); }