linux-kernel - [PATCH] tools/nolibc: drop test for getauxval(AT

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Message-Id: <20231007-nolibc-auxval-pagesz-v1-1-af00804edead@weissschuh.net>
Date:   Sat, 07 Oct 2023 12:18:55 +0200
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>,
        Zhangjin Wu <falcon@...ylab.org>
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] tools/nolibc: drop test for getauxval(AT_PAGESZ)

The test will not work for systems with pagesize != 4096 like aarch64
and some others.

Other testcases are already testing the same functionality:
* auxv_AT_UID tests getauxval() in general.
* test_getpagesize() tests pagesize() which directly calls
  getauxval(AT_PAGESZ).

Fixes: 48967b73f8fe ("selftests/nolibc: add testcases for startup code")
Cc: stable@...r.kernel.org
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
Note:

This should probably also make it into 6.6.
---
 tools/testing/selftests/nolibc/nolibc-test.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index a3ee4496bf0a..7e3936c182dc 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -630,7 +630,6 @@ int run_startup(int min, int max)
 		CASE_TEST(environ_HOME);     EXPECT_PTRNZ(1, getenv("HOME")); break;
 		CASE_TEST(auxv_addr);        EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break;
 		CASE_TEST(auxv_AT_UID);      EXPECT_EQ(1, getauxval(AT_UID), getuid()); break;
-		CASE_TEST(auxv_AT_PAGESZ);   EXPECT_GE(1, getauxval(AT_PAGESZ), 4096); break;
 		case __LINE__:
 			return ret; /* must be last */
 		/* note: do not set any defaults so as to permit holes above */

---
base-commit: ab663cc32912914258bc8a2fbd0e753f552ee9d8
change-id: 20231007-nolibc-auxval-pagesz-05f5ff79c4c4

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>