From patchwork Mon Jun 19 15:55:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhangjin Wu X-Patchwork-Id: 694325 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1223EEB64D9 for ; Mon, 19 Jun 2023 15:56:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230003AbjFSP4O (ORCPT ); Mon, 19 Jun 2023 11:56:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229888AbjFSP4N (ORCPT ); Mon, 19 Jun 2023 11:56:13 -0400 Received: from bg4.exmail.qq.com (bg4.exmail.qq.com [43.154.54.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90FFE188; Mon, 19 Jun 2023 08:56:11 -0700 (PDT) X-QQ-mid: bizesmtp67t1687190155tjgcboy4 Received: from linux-lab-host.localdomain ( [116.30.126.60]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 19 Jun 2023 23:55:54 +0800 (CST) X-QQ-SSF: 01200000000000D0V000000A0000000 X-QQ-FEAT: 3M0okmaRx3j+DH7O25w4I49usNQKwukZko0M+fI3sghNet1qUt9QPoFPGaQxB qUMyPH1KyGxQc++m+763kfmCEtcyL49JXo2yHMQadZgrhtZ7A1HIxET4qQIWuaQOQuc0B5z vXxgUMSbD9P70U/yfA+nxAN7nnTlIGoBh+4w3niCvA+Z/2EOraI8DQpA6m6s2k1ajHZvFoE FAdBwRDieRX70M3hWobE0uCkcUfsM27XxUYZSJ731A6sywzYCHmnPH1saAHF580yKVSi5mj zZ4fd6N1vzXqxDKGes/atceNbMHFINvKZj0tmM57KNReZMT+tcf5OTPZU7XYbS6Z2xzD3im 9Tcu3DQ5VpCXjBBMGVSGOFXsL98Q4YN1yqC9dgHnKrP/0d+Ma8YNWMUUD2oOwcdwJyI9WXD X-QQ-GoodBg: 0 X-BIZMAIL-ID: 1231696777476800510 From: Zhangjin Wu To: w@1wt.eu Cc: david.laight@aculab.com, arnd@arndb.de, falcon@tinylab.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org, thomas@t-8ch.de Subject: [PATCH v4 10/10] selftests/nolibc: add mmap and munmap test cases Date: Mon, 19 Jun 2023 23:55:41 +0800 Message-Id: <9c46f648cd8c784405afed565bed120f0a2f239e.1687187451.git.falcon@tinylab.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:tinylab.org:qybglogicsvrsz:qybglogicsvrsz3a-3 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Three mmap/munmap related test cases are added: - mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL) The length argument must be greater than 0, otherwise, fail with -EINVAL. - munmap((void *)-1, 4*1024), -1, EINVAL) Invalid (void *)-1 address fail with -EINVAL. - test_mmap_munmap(4*1024) It finds a init file, mmap() it and then munmap(). Signed-off-by: Zhangjin Wu --- tools/testing/selftests/nolibc/nolibc-test.c | 31 ++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 80ab29e2887c..f7c0ca72cb28 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -592,6 +592,34 @@ static int test_stat_timestamps(void) return 0; } +int test_mmap_munmap(int size) +{ + char init_files[5][20] = {"/init", "/sbin/init", "/etc/init", "/bin/init", "/bin/sh"}; + int ret, fd, i; + void *mem; + + for (i = 0; i < 5; i++) { + ret = fd = open(init_files[i], O_RDONLY); + if (ret < 0) + continue; + else + break; + } + if (ret < 0) + return ret; + + mem = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0); + if (mem == MAP_FAILED) + return -1; + + ret = munmap(mem, size); + if (ret < 0) + return ret; + + return close(fd); +} + + /* Run syscall tests between IDs and . * Return 0 on success, non-zero on failure. */ @@ -666,6 +694,9 @@ int run_syscall(int min, int max) CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break; CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break; CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break; + CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break; + CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap((void *)-1, 0), -1, EINVAL); break; + CASE_TEST(mmap_good); EXPECT_SYSZR(1, test_mmap_munmap(4*1024)); break; CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", 0), -1); if (tmp != -1) close(tmp); break; CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", 0), -1, ENOENT); if (tmp != -1) close(tmp); break; CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break;