diff options
Diffstat (limited to 'arch/parisc/kernel/signal32.c')
| -rw-r--r-- | arch/parisc/kernel/signal32.c | 136 |
1 files changed, 1 insertions, 135 deletions
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c index 70aaabb8b3cb..9a5ba57ad94d 100644 --- a/arch/parisc/kernel/signal32.c +++ b/arch/parisc/kernel/signal32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Signal support for 32-bit kernel builds * * Copyright (C) 2001 Matthew Wilcox <willy at parisc-linux.org> @@ -5,21 +6,6 @@ * * Code was mostly borrowed from kernel/signal.c. * See kernel/signal.c for additional Copyrights. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/compat.h> @@ -46,19 +32,6 @@ #define DBG(LEVEL, ...) #endif -inline void -sigset_32to64(sigset_t *s64, compat_sigset_t *s32) -{ - s64->sig[0] = s32->sig[0] | ((unsigned long)s32->sig[1] << 32); -} - -inline void -sigset_64to32(compat_sigset_t *s32, sigset_t *s64) -{ - s32->sig[0] = s64->sig[0] & 0xffffffffUL; - s32->sig[1] = (s64->sig[0] >> 32) & 0xffffffffUL; -} - long restore_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf, struct pt_regs *regs) @@ -273,110 +246,3 @@ setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __ return err; } - -int -copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from) -{ - compat_uptr_t addr; - int err; - - if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t))) - return -EFAULT; - - err = __get_user(to->si_signo, &from->si_signo); - err |= __get_user(to->si_errno, &from->si_errno); - err |= __get_user(to->si_code, &from->si_code); - - if (to->si_code < 0) - err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE); - else { - switch (to->si_code >> 16) { - case __SI_CHLD >> 16: - err |= __get_user(to->si_utime, &from->si_utime); - err |= __get_user(to->si_stime, &from->si_stime); - err |= __get_user(to->si_status, &from->si_status); - default: - err |= __get_user(to->si_pid, &from->si_pid); - err |= __get_user(to->si_uid, &from->si_uid); - break; - case __SI_FAULT >> 16: - err |= __get_user(addr, &from->si_addr); - to->si_addr = compat_ptr(addr); - break; - case __SI_POLL >> 16: - err |= __get_user(to->si_band, &from->si_band); - err |= __get_user(to->si_fd, &from->si_fd); - break; - case __SI_RT >> 16: /* This is not generated by the kernel as of now. */ - case __SI_MESGQ >> 16: - err |= __get_user(to->si_pid, &from->si_pid); - err |= __get_user(to->si_uid, &from->si_uid); - err |= __get_user(to->si_int, &from->si_int); - break; - } - } - return err; -} - -int -copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from) -{ - compat_uptr_t addr; - compat_int_t val; - int err; - - if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t))) - return -EFAULT; - - /* If you change siginfo_t structure, please be sure - this code is fixed accordingly. - It should never copy any pad contained in the structure - to avoid security leaks, but must copy the generic - 3 ints plus the relevant union member. - This routine must convert siginfo from 64bit to 32bit as well - at the same time. */ - err = __put_user(from->si_signo, &to->si_signo); - err |= __put_user(from->si_errno, &to->si_errno); - err |= __put_user((short)from->si_code, &to->si_code); - if (from->si_code < 0) - err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE); - else { - switch (from->si_code >> 16) { - case __SI_CHLD >> 16: - err |= __put_user(from->si_utime, &to->si_utime); - err |= __put_user(from->si_stime, &to->si_stime); - err |= __put_user(from->si_status, &to->si_status); - default: - err |= __put_user(from->si_pid, &to->si_pid); - err |= __put_user(from->si_uid, &to->si_uid); - break; - case __SI_FAULT >> 16: - addr = ptr_to_compat(from->si_addr); - err |= __put_user(addr, &to->si_addr); - break; - case __SI_POLL >> 16: - err |= __put_user(from->si_band, &to->si_band); - err |= __put_user(from->si_fd, &to->si_fd); - break; - case __SI_TIMER >> 16: - err |= __put_user(from->si_tid, &to->si_tid); - err |= __put_user(from->si_overrun, &to->si_overrun); - val = (compat_int_t)from->si_int; - err |= __put_user(val, &to->si_int); - break; - case __SI_RT >> 16: /* Not generated by the kernel as of now. */ - case __SI_MESGQ >> 16: - err |= __put_user(from->si_uid, &to->si_uid); - err |= __put_user(from->si_pid, &to->si_pid); - val = (compat_int_t)from->si_int; - err |= __put_user(val, &to->si_int); - break; - case __SI_SYS >> 16: - err |= __put_user(ptr_to_compat(from->si_call_addr), &to->si_call_addr); - err |= __put_user(from->si_syscall, &to->si_syscall); - err |= __put_user(from->si_arch, &to->si_arch); - break; - } - } - return err; -} |
