1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) 2014 Fujitsu Ltd. 4f08c3bdfSopenharmony_ci * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com> 5f08c3bdfSopenharmony_ci * Copyright (c) 2023 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com> 6f08c3bdfSopenharmony_ci */ 7f08c3bdfSopenharmony_ci 8f08c3bdfSopenharmony_ci/*\ 9f08c3bdfSopenharmony_ci * [Description] 10f08c3bdfSopenharmony_ci * 11f08c3bdfSopenharmony_ci * Verify that sbrk() on failure sets errno to ENOMEM. 12f08c3bdfSopenharmony_ci */ 13f08c3bdfSopenharmony_ci 14f08c3bdfSopenharmony_ci 15f08c3bdfSopenharmony_ci#include "tst_test.h" 16f08c3bdfSopenharmony_ci 17f08c3bdfSopenharmony_ci#define INC (16*1024*1024) 18f08c3bdfSopenharmony_cistatic long increment = INC; 19f08c3bdfSopenharmony_ci 20f08c3bdfSopenharmony_cistatic void run(void) 21f08c3bdfSopenharmony_ci{ 22f08c3bdfSopenharmony_ci TESTPTR(sbrk(increment)); 23f08c3bdfSopenharmony_ci 24f08c3bdfSopenharmony_ci if (TST_RET_PTR != (void *)-1) { 25f08c3bdfSopenharmony_ci tst_res(TFAIL, "sbrk(%ld) unexpectedly passed and returned %p, " 26f08c3bdfSopenharmony_ci "expected (void *)-1 with errno=%d", 27f08c3bdfSopenharmony_ci increment, TST_RET_PTR, ENOMEM); 28f08c3bdfSopenharmony_ci return; 29f08c3bdfSopenharmony_ci } 30f08c3bdfSopenharmony_ci 31f08c3bdfSopenharmony_ci if (TST_ERR == ENOMEM) 32f08c3bdfSopenharmony_ci tst_res(TPASS | TTERRNO, "sbrk(%ld) failed as expected", increment); 33f08c3bdfSopenharmony_ci else 34f08c3bdfSopenharmony_ci tst_res(TFAIL | TTERRNO, "sbrk(%ld) failed but unexpected errno, " 35f08c3bdfSopenharmony_ci "expected errno=%d - %s", 36f08c3bdfSopenharmony_ci increment, ENOMEM, strerror(ENOMEM)); 37f08c3bdfSopenharmony_ci} 38f08c3bdfSopenharmony_ci 39f08c3bdfSopenharmony_cistatic void setup(void) 40f08c3bdfSopenharmony_ci{ 41f08c3bdfSopenharmony_ci void *ret = NULL; 42f08c3bdfSopenharmony_ci 43f08c3bdfSopenharmony_ci while (ret != (void *)-1 && increment > 0) { 44f08c3bdfSopenharmony_ci ret = sbrk(increment); 45f08c3bdfSopenharmony_ci increment += INC; 46f08c3bdfSopenharmony_ci } 47f08c3bdfSopenharmony_ci} 48f08c3bdfSopenharmony_ci 49f08c3bdfSopenharmony_cistatic struct tst_test test = { 50f08c3bdfSopenharmony_ci .test_all = run, 51f08c3bdfSopenharmony_ci .setup = setup 52f08c3bdfSopenharmony_ci}; 53