11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2003 Broadcom Corporation 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * modify it under the terms of the GNU General Public License 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * as published by the Free Software Foundation; either version 2 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the License, or (at your option) any later version. 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1802416dcf5a94af34bcd28b4baf25bbbf399d8136Ralf Baechle#include <linux/cache.h> 1902416dcf5a94af34bcd28b4baf25bbbf399d8136Ralf Baechle#include <linux/sched.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/smp.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/signal.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/wait.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ptrace.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/unistd.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/compat.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31151fd6acd94e12ef3a7d5fa0911a2590690c493fRalf Baechle#include <asm/abi.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/asm.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/cacheflush.h> 34431dc8040354db65e4f8d4d4e21ae4fab41f5bc3Ralf Baechle#include <asm/compat-signal.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/sim.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/ucontext.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/fpu.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/cpu-features.h> 4002416dcf5a94af34bcd28b4baf25bbbf399d8136Ralf Baechle#include <asm/war.h> 41d814c28ceca8f659c0012eaec8e21eee43710716David Daney#include <asm/vdso.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "signal-common.h" 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Including <asm/unistd.h> would give use the 64-bit syscall numbers ... 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define __NR_N32_restart_syscall 6214 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 50205d84aaea380bbd1cc1079d44086cd50c2c2dadRalf Baechleextern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *); 51205d84aaea380bbd1cc1079d44086cd50c2c2dadRalf Baechleextern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); 52205d84aaea380bbd1cc1079d44086cd50c2c2dadRalf Baechle 53205d84aaea380bbd1cc1079d44086cd50c2c2dadRalf Baechle 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* IRIX compatible stack_t */ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstypedef struct sigaltstack32 { 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 ss_sp; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_size_t ss_size; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ss_flags; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} stack32_t; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ucontextn32 { 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 uc_flags; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 uc_link; 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stack32_t uc_stack; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sigcontext uc_mcontext; 66431dc8040354db65e4f8d4d4e21ae4fab41f5bc3Ralf Baechle compat_sigset_t uc_sigmask; /* mask last for extensibility */ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 69c0b9bae9d18980afa1797fb7b75adb4fbc837b66Franck Bui-Huustruct rt_sigframe_n32 { 70c0b9bae9d18980afa1797fb7b75adb4fbc837b66Franck Bui-Huu u32 rs_ass[4]; /* argument save space for o32 */ 71d814c28ceca8f659c0012eaec8e21eee43710716David Daney u32 rs_pad[2]; /* Was: signal trampoline */ 72a76f3a417a431eaf673323459357d8e684b52c49Pavel Kiryukhin struct compat_siginfo rs_info; 73c0b9bae9d18980afa1797fb7b75adb4fbc837b66Franck Bui-Huu struct ucontextn32 rs_uc; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7649a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechleextern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat); 773f2e05e90e0846c42626e3d272454f26be34a1bcDavid Howells 78f90080a059fc19444b3a63affd1f4ecece62c11cFranck Bui-Huuasmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) 7982ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle{ 80b1bcb362d921f5e46a3bec0c7a73c32abfe74db2Atsushi Nemoto compat_sigset_t __user *unewset; 81b1bcb362d921f5e46a3bec0c7a73c32abfe74db2Atsushi Nemoto compat_sigset_t uset; 8282ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle size_t sigsetsize; 8382ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle sigset_t newset; 8482ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle 8582ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle /* XXX Don't preclude handling different sized sigset_t's. */ 8682ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle sigsetsize = regs.regs[5]; 8782ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle if (sigsetsize != sizeof(sigset_t)) 8882ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle return -EINVAL; 8982ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle 9082ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle unewset = (compat_sigset_t __user *) regs.regs[4]; 9182ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle if (copy_from_user(&uset, unewset, sizeof(uset))) 9282ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle return -EFAULT; 9349a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle sigset_from_compat(&newset, &uset); 9482ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle sigdelsetmask(&newset, ~_BLOCKABLE); 9582ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle 9682ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle current->saved_sigmask = current->blocked; 978598f3cd80c860173d9b35d91c3dcb93eee13b54Matt Fleming set_current_blocked(&newset); 9882ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle 9982ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle current->state = TASK_INTERRUPTIBLE; 10082ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle schedule(); 10182ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle set_thread_flag(TIF_RESTORE_SIGMASK); 10282ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle return -ERESTARTNOHAND; 10382ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle} 10482ad93f4a002294820e9a5e6f84beef2222a54b7Ralf Baechle 105f90080a059fc19444b3a63affd1f4ecece62c11cFranck Bui-Huuasmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1079bbf28a36cae08817ac3a3f98fde329b02c89f4aAtsushi Nemoto struct rt_sigframe_n32 __user *frame; 1084bfb8c5c87bd167640ef5789b22e058e339df804Al Viro mm_segment_t old_fs; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigset_t set; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stack_t st; 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 sp; 112c6a2f4679331206ef5d353fc9a6cda2fa4aef8c6Atsushi Nemoto int sig; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1149bbf28a36cae08817ac3a3f98fde329b02c89f4aAtsushi Nemoto frame = (struct rt_sigframe_n32 __user *) regs.regs[29]; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto badframe; 117431dc8040354db65e4f8d4d4e21ae4fab41f5bc3Ralf Baechle if (__copy_conv_sigset_from_user(&set, &frame->rs_uc.uc_sigmask)) 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto badframe; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigdelsetmask(&set, ~_BLOCKABLE); 1218598f3cd80c860173d9b35d91c3dcb93eee13b54Matt Fleming set_current_blocked(&set); 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123c6a2f4679331206ef5d353fc9a6cda2fa4aef8c6Atsushi Nemoto sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext); 124c6a2f4679331206ef5d353fc9a6cda2fa4aef8c6Atsushi Nemoto if (sig < 0) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto badframe; 126c6a2f4679331206ef5d353fc9a6cda2fa4aef8c6Atsushi Nemoto else if (sig) 127c6a2f4679331206ef5d353fc9a6cda2fa4aef8c6Atsushi Nemoto force_sig(sig, current); 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* The ucontext contains a stack32_t, so we must convert! */ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp)) 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto badframe; 1329c6031cc93626a194a9ef32d62b078ef1b396c45Atsushi Nemoto st.ss_sp = (void __user *)(long) sp; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (__get_user(st.ss_size, &frame->rs_uc.uc_stack.ss_size)) 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto badframe; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (__get_user(st.ss_flags, &frame->rs_uc.uc_stack.ss_flags)) 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto badframe; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* It is more difficult to avoid calling this function than to 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds call it and ignore errors. */ 1404bfb8c5c87bd167640ef5789b22e058e339df804Al Viro old_fs = get_fs(); 1414bfb8c5c87bd167640ef5789b22e058e339df804Al Viro set_fs(KERNEL_DS); 1429bbf28a36cae08817ac3a3f98fde329b02c89f4aAtsushi Nemoto do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]); 1434bfb8c5c87bd167640ef5789b22e058e339df804Al Viro set_fs(old_fs); 1444bfb8c5c87bd167640ef5789b22e058e339df804Al Viro 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Don't let your children do this ... 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __asm__ __volatile__( 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "move\t$29, %0\n\t" 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "j\tsyscall_exit" 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds :/* no outputs */ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds :"r" (®s)); 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Unreached */ 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbadframe: 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds force_sig(SIGSEGV, current); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 160d814c28ceca8f659c0012eaec8e21eee43710716David Daneystatic int setup_rt_frame_n32(void *sig_return, struct k_sigaction *ka, 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pt_regs *regs, int signr, sigset_t *set, siginfo_t *info) 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1639bbf28a36cae08817ac3a3f98fde329b02c89f4aAtsushi Nemoto struct rt_sigframe_n32 __user *frame; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = 0; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s32 sp; 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds frame = get_sigframe(ka, regs, sizeof(*frame)); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto give_sigsegv; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Create siginfo. */ 172a76f3a417a431eaf673323459357d8e684b52c49Pavel Kiryukhin err |= copy_siginfo_to_user32(&frame->rs_info, info); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Create the ucontext. */ 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err |= __put_user(0, &frame->rs_uc.uc_flags); 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err |= __put_user(0, &frame->rs_uc.uc_link); 177e0daad449c5195fa4552c60392eeee4e5c58d31cRalf Baechle sp = (int) (long) current->sas_ss_sp; 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err |= __put_user(sp, 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &frame->rs_uc.uc_stack.ss_sp); 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err |= __put_user(sas_ss_flags(regs->regs[29]), 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &frame->rs_uc.uc_stack.ss_flags); 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err |= __put_user(current->sas_ss_size, 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &frame->rs_uc.uc_stack.ss_size); 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext); 185431dc8040354db65e4f8d4d4e21ae4fab41f5bc3Ralf Baechle err |= __copy_conv_sigset_to_user(&frame->rs_uc.uc_sigmask, set); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto give_sigsegv; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Arguments to signal handler: 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a0 = signal number 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a1 = 0 (should be cause) 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a2 = pointer to ucontext 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * $25 and c0_epc point to the signal handler, $29 points to 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the struct rt_sigframe. 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regs->regs[ 4] = signr; 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regs->regs[ 5] = (unsigned long) &frame->rs_info; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regs->regs[ 6] = (unsigned long) &frame->rs_uc; 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regs->regs[29] = (unsigned long) frame; 204d814c28ceca8f659c0012eaec8e21eee43710716David Daney regs->regs[31] = (unsigned long) sig_return; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 207722bb63de630f9500db1f12ed32e1dd9349a8049Franck Bui-Huu DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds current->comm, current->pid, 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds frame, regs->cp0_epc, regs->regs[31]); 210722bb63de630f9500db1f12ed32e1dd9349a8049Franck Bui-Huu 2117b3e2fc847c8325a7b35185fa1fc2f1729ed9c5bRalf Baechle return 0; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsgive_sigsegv: 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds force_sigsegv(signr, current); 2157b3e2fc847c8325a7b35185fa1fc2f1729ed9c5bRalf Baechle return -EFAULT; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 217151fd6acd94e12ef3a7d5fa0911a2590690c493fRalf Baechle 218151fd6acd94e12ef3a7d5fa0911a2590690c493fRalf Baechlestruct mips_abi mips_abi_n32 = { 219151fd6acd94e12ef3a7d5fa0911a2590690c493fRalf Baechle .setup_rt_frame = setup_rt_frame_n32, 220d814c28ceca8f659c0012eaec8e21eee43710716David Daney .rt_signal_return_offset = 221d814c28ceca8f659c0012eaec8e21eee43710716David Daney offsetof(struct mips_vdso, n32_rt_signal_trampoline), 222151fd6acd94e12ef3a7d5fa0911a2590690c493fRalf Baechle .restart = __NR_N32_restart_syscall 223151fd6acd94e12ef3a7d5fa0911a2590690c493fRalf Baechle}; 224