cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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signal.c (725B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Copyright (C) 2019  Arm Limited
      4 * Original author: Dave Martin <Dave.Martin@arm.com>
      5 */
      6
      7#include "system.h"
      8#include "signal.h"
      9
     10int sigemptyset(sigset_t *s)
     11{
     12	unsigned int i;
     13
     14	for (i = 0; i < _NSIG_WORDS; ++i)
     15		s->sig[i] = 0;
     16
     17	return 0;
     18}
     19
     20int sigaddset(sigset_t *s, int n)
     21{
     22	if (n < 1 || n > _NSIG)
     23		return -EINVAL;
     24
     25	s->sig[(n - 1) / _NSIG_BPW] |= 1UL << (n - 1) % _NSIG_BPW;
     26	return 0;
     27}
     28
     29int sigaction(int n, struct sigaction *sa, const struct sigaction *old)
     30{
     31	return syscall(__NR_rt_sigaction, n, sa, old, sizeof(sa->sa_mask));
     32}
     33
     34int sigprocmask(int how, const sigset_t *mask, sigset_t *old)
     35{
     36	return syscall(__NR_rt_sigprocmask, how, mask, old, sizeof(*mask));
     37}