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From: Zhangjin Wu <falcon@tinylab.org>
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 09/10] selftests/nolibc: add sbrk_0 to test current brk getting
Date: Mon, 19 Jun 2023 23:54:15 +0800	[thread overview]
Message-ID: <105b488a94953ec8e7b4555bbc89c8e5a17e2c8f.1687187451.git.falcon@tinylab.org> (raw)
In-Reply-To: <cover.1687187451.git.falcon@tinylab.org>

From musl 0.9.14 (to the latest version 1.2.3), both sbrk() and brk()
have almost been disabled for they conflict with malloc, only sbrk(0) is
still permitted as a way to get the current brk, let's support such
case.

EXPECT_PTRNE() is used to expect sbrk() always successfully getting the
current brk.

Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
 tools/testing/selftests/nolibc/nolibc-test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 34af802dadfd..80ab29e2887c 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -630,6 +630,7 @@ int run_syscall(int min, int max)
 		CASE_TEST(kill_0);            EXPECT_SYSZR(1, kill(getpid(), 0)); break;
 		CASE_TEST(kill_CONT);         EXPECT_SYSZR(1, kill(getpid(), 0)); break;
 		CASE_TEST(kill_BADPID);       EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break;
+		CASE_TEST(sbrk_0);            EXPECT_PTRNE(1, sbrk(0), (void *)-1); break;
 		CASE_TEST(sbrk);              if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(1, (p2 == (void *)-1) || p2 == p1); break;
 		CASE_TEST(brk);               EXPECT_SYSZR(1, brk(sbrk(0))); break;
 		CASE_TEST(chdir_root);        EXPECT_SYSZR(1, chdir("/")); break;
-- 
2.25.1


  parent reply	other threads:[~2023-06-19 15:55 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-19 15:40 [PATCH v4 00/10] tools/nolibc: add a new syscall helper Zhangjin Wu
2023-06-19 15:41 ` [PATCH v4 01/10] tools/nolibc: sys.h: add a syscall return helper Zhangjin Wu
2023-06-19 15:42 ` [PATCH v4 02/10] tools/nolibc: unistd.h: apply __sysret() helper Zhangjin Wu
2023-06-19 15:44 ` [PATCH v4 03/10] tools/nolibc: sys.h: " Zhangjin Wu
2023-06-19 15:45 ` [PATCH v4 04/10] tools/nolibc: unistd.h: reorder the syscall macros Zhangjin Wu
2023-06-19 15:47 ` [PATCH v4 05/10] tools/nolibc: add missing my_syscall6() for mips Zhangjin Wu
2023-06-19 15:48 ` [PATCH v4 06/10] tools/nolibc: __sysret: support syscalls who return a pointer Zhangjin Wu
2023-06-19 15:51 ` [PATCH v4 07/10] tools/nolibc: clean up mmap() support Zhangjin Wu
2023-06-21 18:48   ` Thomas Weißschuh
2023-06-22 19:08     ` Zhangjin Wu
2023-06-19 15:52 ` [PATCH v4 08/10] selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER Zhangjin Wu
2023-06-19 15:54 ` Zhangjin Wu [this message]
2023-06-19 15:55 ` [PATCH v4 10/10] selftests/nolibc: add mmap and munmap test cases Zhangjin Wu
2023-06-19 16:14   ` Zhangjin Wu
2023-06-21 18:58   ` Thomas Weißschuh
2023-06-22 19:32     ` Zhangjin Wu
2023-06-22 19:56       ` Thomas Weißschuh
2023-06-24  7:47         ` Zhangjin Wu
2023-06-28 13:07 ` [PATCH v5 00/14] tools/nolibc: add a new syscall helper Zhangjin Wu
2023-06-28 13:08   ` [PATCH v5 01/14] tools/nolibc: sys.h: add a syscall return helper Zhangjin Wu
2023-06-28 13:11   ` [PATCH v5 02/14] tools/nolibc: unistd.h: apply __sysret() helper Zhangjin Wu
2023-06-28 13:13   ` [PATCH v5 03/14] tools/nolibc: sys.h: " Zhangjin Wu
2023-06-28 13:14   ` [PATCH v5 04/14] tools/nolibc: unistd.h: reorder the syscall macros Zhangjin Wu
2023-06-28 13:17   ` [PATCH v5 05/14] tools/nolibc: string.h: clean up multiple whitespaces with tab Zhangjin Wu
2023-06-28 13:19   ` [PATCH v5 06/14] tools/nolibc: arch-*.h: clean up multiple whitespaces Zhangjin Wu
2023-07-02 18:44     ` Willy Tarreau
2023-07-03 14:02       ` Zhangjin Wu
2023-06-28 13:22   ` [PATCH v5 07/14] tools/nolibc: arch-loongarch.h: shrink with SYSCALL_CLOBBERLIST Zhangjin Wu
2023-07-02 18:50     ` Willy Tarreau
2023-07-03 11:28       ` Zhangjin Wu
2023-06-28 13:31   ` [PATCH v5 08/14] tools/nolibc: arch-mips.h: " Zhangjin Wu
2023-06-28 13:37   ` [PATCH v5 09/14] tools/nolibc: add missing my_syscall6() for mips Zhangjin Wu
2023-07-02 18:55     ` Willy Tarreau
2023-07-03 10:13       ` Zhangjin Wu
2023-06-28 13:39   ` [PATCH v5 10/14] tools/nolibc: __sysret: support syscalls who return a pointer Zhangjin Wu
2023-07-02 19:17     ` Willy Tarreau
2023-07-03  8:36       ` Zhangjin Wu
2023-07-03 10:03         ` Willy Tarreau
2023-07-03 11:15           ` Zhangjin Wu
2023-06-28 13:41   ` [PATCH v5 11/14] tools/nolibc: clean up mmap() support Zhangjin Wu
2023-07-02 19:23     ` Willy Tarreau
2023-07-03  6:51       ` Zhangjin Wu
2023-06-28 13:44   ` [PATCH v5 12/14] selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER Zhangjin Wu
2023-06-28 13:46   ` [PATCH v5 13/14] selftests/nolibc: add sbrk_0 to test current brk getting Zhangjin Wu
2023-06-28 13:51   ` [PATCH v5 14/14] selftests/nolibc: add mmap and munmap test cases Zhangjin Wu
2023-07-02 19:33     ` Willy Tarreau
2023-07-03  6:03       ` Zhangjin Wu
2023-07-03  7:25         ` Willy Tarreau
2023-07-03  8:06           ` Zhangjin Wu
2023-07-03  8:20             ` Thomas Weißschuh
2023-07-03  9:15               ` Zhangjin Wu
2023-07-03  9:56             ` Willy Tarreau
2023-07-03 11:24               ` Zhangjin Wu
2023-07-02 19:34   ` [PATCH v5 00/14] tools/nolibc: add a new syscall helper Willy Tarreau

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