jehanne/qa/kern/malloc1GiB.c

55 lines
1.2 KiB
C
Raw Normal View History

/*
* This file is part of Jehanne.
*
* Copyright (C) 2015 Giacomo Tesio <giacomo@tesio.it>
*
* Jehanne 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, version 2 of the License.
*
* Jehanne 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 Jehanne. If not, see <http://www.gnu.org/licenses/>.
*/
#include <u.h>
#include <lib9.h>
#define GiB 1024*1024*1024
void
main(void)
{
char *p, *q, *e;
p = malloc(GiB);
if(p == nil){
fprint(2, "FAIL: malloc(GiB)\n");
exits("FAIL");
}
e = p + GiB;
for(q = p;
q < e;
q += 512){
if((q - p) % (32*1024*1024) == 0)
fprint(2, "setting %#p (off %d, %d MiB)\n", q, q - p, (q - p) / (1024*1024));
*q = 1;
}
for(q = p;
q < e;
q += 512){
if(*q != 1){
fprint(2, "FAIL: memory check\n");
exits("FAIL");
}
}
print("PASS\n");
exits("PASS");
}