-static void
-setup_frame32(struct sigaction *sa, struct pt_regs *regs, int signr, sigset_t *oldset, siginfo_t *info)
-{
- struct signal_sframe32 __user *sframep;
- struct sigcontext32 __user *sc;
- unsigned int seta[_COMPAT_NSIG_WORDS];
- int err = 0;
- void __user *sig_address;
- int sig_code;
- unsigned long pc = regs->tpc;
- unsigned long npc = regs->tnpc;
- unsigned int psr;
-
- if (test_thread_flag(TIF_32BIT)) {
- pc &= 0xffffffff;
- npc &= 0xffffffff;
- }
-
- synchronize_user_stack();
- save_and_clear_fpu();
-
- sframep = (struct signal_sframe32 __user *)
- get_sigframe(sa, regs, SF_ALIGNEDSZ);
- if (invalid_frame_pointer(sframep, sizeof(*sframep))){
- /* Don't change signal code and address, so that
- * post mortem debuggers can have a look.
- */
- do_exit(SIGILL);
- }
-
- sc = &sframep->sig_context;
-
- /* We've already made sure frame pointer isn't in kernel space... */
- err = __put_user((sas_ss_flags(regs->u_regs[UREG_FP]) == SS_ONSTACK),
- &sc->sigc_onstack);
-
- switch (_NSIG_WORDS) {
- case 4: seta[7] = (oldset->sig[3] >> 32);
- seta[6] = oldset->sig[3];
- case 3: seta[5] = (oldset->sig[2] >> 32);
- seta[4] = oldset->sig[2];
- case 2: seta[3] = (oldset->sig[1] >> 32);
- seta[2] = oldset->sig[1];
- case 1: seta[1] = (oldset->sig[0] >> 32);
- seta[0] = oldset->sig[0];
- }
- err |= __put_user(seta[0], &sc->sigc_mask);
- err |= __copy_to_user(sframep->extramask, seta + 1,
- (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int));
- err |= __put_user(regs->u_regs[UREG_FP], &sc->sigc_sp);
- err |= __put_user(pc, &sc->sigc_pc);
- err |= __put_user(npc, &sc->sigc_npc);
- psr = tstate_to_psr(regs->tstate);
- if (current_thread_info()->fpsaved[0] & FPRS_FEF)
- psr |= PSR_EF;
- err |= __put_user(psr, &sc->sigc_psr);
- err |= __put_user(regs->u_regs[UREG_G1], &sc->sigc_g1);
- err |= __put_user(regs->u_regs[UREG_I0], &sc->sigc_o0);
- err |= __put_user(get_thread_wsaved(), &sc->sigc_oswins);
-
- err |= copy_in_user((u32 __user *)sframep,
- (u32 __user *)(regs->u_regs[UREG_FP]),
- sizeof(struct reg_window32));
-
- set_thread_wsaved(0); /* So process is allowed to execute. */
- err |= __put_user(signr, &sframep->sig_num);
- sig_address = NULL;
- sig_code = 0;
- if (SI_FROMKERNEL (info) && (info->si_code & __SI_MASK) == __SI_FAULT) {
- sig_address = info->si_addr;
- switch (signr) {
- case SIGSEGV:
- switch (info->si_code) {
- case SEGV_MAPERR: sig_code = SUBSIG_NOMAPPING; break;
- default: sig_code = SUBSIG_PROTECTION; break;
- }
- break;
- case SIGILL:
- switch (info->si_code) {
- case ILL_ILLOPC: sig_code = SUBSIG_ILLINST; break;
- case ILL_PRVOPC: sig_code = SUBSIG_PRIVINST; break;
- case ILL_ILLTRP: sig_code = SUBSIG_BADTRAP(info->si_trapno); break;
- default: sig_code = SUBSIG_STACK; break;
- }
- break;
- case SIGFPE:
- switch (info->si_code) {
- case FPE_INTDIV: sig_code = SUBSIG_IDIVZERO; break;
- case FPE_INTOVF: sig_code = SUBSIG_FPINTOVFL; break;
- case FPE_FLTDIV: sig_code = SUBSIG_FPDIVZERO; break;
- case FPE_FLTOVF: sig_code = SUBSIG_FPOVFLOW; break;
- case FPE_FLTUND: sig_code = SUBSIG_FPUNFLOW; break;
- case FPE_FLTRES: sig_code = SUBSIG_FPINEXACT; break;
- case FPE_FLTINV: sig_code = SUBSIG_FPOPERROR; break;
- default: sig_code = SUBSIG_FPERROR; break;
- }
- break;
- case SIGBUS:
- switch (info->si_code) {
- case BUS_ADRALN: sig_code = SUBSIG_ALIGNMENT; break;
- case BUS_ADRERR: sig_code = SUBSIG_MISCERROR; break;
- default: sig_code = SUBSIG_BUSTIMEOUT; break;
- }
- break;
- case SIGEMT:
- switch (info->si_code) {
- case EMT_TAGOVF: sig_code = SUBSIG_TAG; break;
- }
- break;
- case SIGSYS:
- if (info->si_code == (__SI_FAULT|0x100)) {
- /* See sys_sunos32.c */
- sig_code = info->si_trapno;
- break;
- }
- default:
- sig_address = NULL;
- }
- }
- err |= __put_user(ptr_to_compat(sig_address), &sframep->sig_address);
- err |= __put_user(sig_code, &sframep->sig_code);
- err |= __put_user(ptr_to_compat(sc), &sframep->sig_scptr);
- if (err)
- goto sigsegv;
-
- regs->u_regs[UREG_FP] = (unsigned long) sframep;
- regs->tpc = (unsigned long) sa->sa_handler;
- regs->tnpc = (regs->tpc + 4);
- if (test_thread_flag(TIF_32BIT)) {
- regs->tpc &= 0xffffffff;
- regs->tnpc &= 0xffffffff;
- }
- return;
-
-sigsegv:
- force_sigsegv(signr, current);
-}
-
-