jehanne/qa/kern/brk.c

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/*
* This file is part of Jehanne.
*
* Copyright (C) 2016 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>
void
main(void)
{
long b, b1;
b = create("#0/brk/set", -1, 16*1024*1024);
if(b >= 0){
print("FAIL: create returned fd %d.\n", b);
exits("FAIL");
}
if(b == -1){
print("FAIL: create: %r.\n");
exits("FAIL");
}
b1 = brk((void*)b + 16*1024*1024);
if(b1 == -1){
print("FAIL: brk: %r.\n");
exits("FAIL");
}
if(b >= b1){
print("FAIL: b >= b1.\n");
exits("FAIL");
}
print("PASS\n");
exits("PASS");
}