1*49cdfc7eSAndroid Build Coastguard Worker // SPDX-License-Identifier: GPL-2.0-only
2*49cdfc7eSAndroid Build Coastguard Worker /*
3*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4*49cdfc7eSAndroid Build Coastguard Worker * AUTHOR : William Roske, CO-PILOT : Dave Fenner
5*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2023 SUSE LLC Avinesh Kumar <[email protected]>
6*49cdfc7eSAndroid Build Coastguard Worker */
7*49cdfc7eSAndroid Build Coastguard Worker
8*49cdfc7eSAndroid Build Coastguard Worker /*\
9*49cdfc7eSAndroid Build Coastguard Worker * [Description]
10*49cdfc7eSAndroid Build Coastguard Worker *
11*49cdfc7eSAndroid Build Coastguard Worker * Verify that sbrk() successfully increments or decrements the program's
12*49cdfc7eSAndroid Build Coastguard Worker * data break.
13*49cdfc7eSAndroid Build Coastguard Worker */
14*49cdfc7eSAndroid Build Coastguard Worker
15*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
16*49cdfc7eSAndroid Build Coastguard Worker
17*49cdfc7eSAndroid Build Coastguard Worker static struct tcase {
18*49cdfc7eSAndroid Build Coastguard Worker long increment;
19*49cdfc7eSAndroid Build Coastguard Worker } tcases[] = {
20*49cdfc7eSAndroid Build Coastguard Worker {0},
21*49cdfc7eSAndroid Build Coastguard Worker {8192},
22*49cdfc7eSAndroid Build Coastguard Worker {-8192}
23*49cdfc7eSAndroid Build Coastguard Worker };
24*49cdfc7eSAndroid Build Coastguard Worker
run(unsigned int i)25*49cdfc7eSAndroid Build Coastguard Worker static void run(unsigned int i)
26*49cdfc7eSAndroid Build Coastguard Worker {
27*49cdfc7eSAndroid Build Coastguard Worker struct tcase *tc = &tcases[i];
28*49cdfc7eSAndroid Build Coastguard Worker
29*49cdfc7eSAndroid Build Coastguard Worker TESTPTR(sbrk(tc->increment));
30*49cdfc7eSAndroid Build Coastguard Worker
31*49cdfc7eSAndroid Build Coastguard Worker if (TST_RET_PTR == (void *) -1)
32*49cdfc7eSAndroid Build Coastguard Worker tst_res(TFAIL | TTERRNO, "sbrk(%ld) failed", tc->increment);
33*49cdfc7eSAndroid Build Coastguard Worker else
34*49cdfc7eSAndroid Build Coastguard Worker tst_res(TPASS, "sbrk(%ld) returned %p", tc->increment, TST_RET_PTR);
35*49cdfc7eSAndroid Build Coastguard Worker }
36*49cdfc7eSAndroid Build Coastguard Worker
37*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
38*49cdfc7eSAndroid Build Coastguard Worker .test = run,
39*49cdfc7eSAndroid Build Coastguard Worker .tcnt = ARRAY_SIZE(tcases)
40*49cdfc7eSAndroid Build Coastguard Worker };
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