tests/tcg/hexagon/signal_context.c

   1 /*
   2  *  Copyright(c) 2022 Qualcomm Innovation Center, Inc. All Rights Reserved.
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdio.h>
  19 #include <signal.h>
  20 #include <time.h>
  21
  22 void sig_user(int sig, siginfo_t *info, void *puc)
  23 {
  24     asm("r7 = #0\n\t"
  25         "p0 = r7\n\t"
  26         "p1 = r7\n\t"
  27         "p2 = r7\n\t"
  28         "p3 = r7\n\t"
  29         : : : "r7", "p0", "p1", "p2", "p3");
  30 }
  31
  32 int main()
  33 {
  34     int err = 0;
  35     unsigned int i = 100000;
  36     struct sigaction act;
  37     struct itimerspec it;
  38     timer_t tid;
  39     struct sigevent sev;
  40
  41     act.sa_sigaction = sig_user;
  42     sigemptyset(&act.sa_mask);
  43     act.sa_flags = SA_SIGINFO;
  44     sigaction(SIGUSR1, &act, NULL);
  45     sev.sigev_notify = SIGEV_SIGNAL;
  46     sev.sigev_signo = SIGUSR1;
  47     sev.sigev_value.sival_ptr = &tid;
  48     timer_create(CLOCK_REALTIME, &sev, &tid);
  49     it.it_interval.tv_sec = 0;
  50     it.it_interval.tv_nsec = 100000;
  51     it.it_value.tv_sec = 0;
  52     it.it_value.tv_nsec = 100000;
  53     timer_settime(tid, 0, &it, NULL);
  54
  55     asm("loop0(1f, %1)\n\t"
  56         "1: r8 = #0xff\n\t"
  57         "   p0 = r8\n\t"
  58         "   p1 = r8\n\t"
  59         "   p2 = r8\n\t"
  60         "   p3 = r8\n\t"
  61         "   jump 3f\n\t"
  62         "2: memb(%0) = #1\n\t"
  63         "   jump 4f\n\t"
  64         "3:\n\t"
  65         "   r8 = p0\n\t"
  66         "   p0 = cmp.eq(r8, #0xff)\n\t"
  67         "   if (!p0) jump 2b\n\t"
  68         "   r8 = p1\n\t"
  69         "   p0 = cmp.eq(r8, #0xff)\n\t"
  70         "   if (!p0) jump 2b\n\t"
  71         "   r8 = p2\n\t"
  72         "   p0 = cmp.eq(r8, #0xff)\n\t"
  73         "   if (!p0) jump 2b\n\t"
  74         "   r8 = p3\n\t"
  75         "   p0 = cmp.eq(r8, #0xff)\n\t"
  76         "   if (!p0) jump 2b\n\t"
  77         "4: {}: endloop0\n\t"
  78         :
  79         : "r"(&err), "r"(i)
  80         : "memory", "r8", "p0", "p1", "p2", "p3");
  81
  82     puts(err ? "FAIL" : "PASS");
  83     return err;
  84 }