linux-kernel - [PATCH 4/4] selftests/nolibc: avoid gaps in test numbers

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Message-Id: <20230711-nolibc-sizeof-long-gaps-v1-4-dc78c3b85fc3@weissschuh.net>
Date:   Tue, 11 Jul 2023 11:48:42 +0200
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Zhangjin Wu <falcon@...ylab.org>,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 4/4] selftests/nolibc: avoid gaps in test numbers

As the test numbers are based on line numbers gaps without testcases are
to be avoided.
Instead use the already existing test condition logic to implement
conditional execution.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 tools/testing/selftests/nolibc/nolibc-test.c | 30 ++++++++++++----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 754815c142f6..09660b362645 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -815,23 +815,19 @@ int run_stdlib(int min, int max)
 		CASE_TEST(limit_int_fast64_min);    EXPECT_EQ(1, INT_FAST64_MIN,   (int_fast64_t)    INT64_MIN); break;
 		CASE_TEST(limit_int_fast64_max);    EXPECT_EQ(1, INT_FAST64_MAX,   (int_fast64_t)    INT64_MAX); break;
 		CASE_TEST(limit_uint_fast64_max);   EXPECT_EQ(1, UINT_FAST64_MAX,  (uint_fast64_t)   UINT64_MAX); break;
-#if __SIZEOF_LONG__ == 8
-		CASE_TEST(limit_intptr_min);        EXPECT_EQ(1, INTPTR_MIN,       (intptr_t)        0x8000000000000000LL); break;
-		CASE_TEST(limit_intptr_max);        EXPECT_EQ(1, INTPTR_MAX,       (intptr_t)        0x7fffffffffffffffLL); break;
-		CASE_TEST(limit_uintptr_max);       EXPECT_EQ(1, UINTPTR_MAX,      (uintptr_t)       0xffffffffffffffffULL); break;
-		CASE_TEST(limit_ptrdiff_min);       EXPECT_EQ(1, PTRDIFF_MIN,      (ptrdiff_t)       0x8000000000000000LL); break;
-		CASE_TEST(limit_ptrdiff_max);       EXPECT_EQ(1, PTRDIFF_MAX,      (ptrdiff_t)       0x7fffffffffffffffLL); break;
-		CASE_TEST(limit_size_max);          EXPECT_EQ(1, SIZE_MAX,         (size_t)          0xffffffffffffffffULL); break;
-#elif __SIZEOF_LONG__ == 4
-		CASE_TEST(limit_intptr_min);        EXPECT_EQ(1, INTPTR_MIN,       (intptr_t)        0x80000000); break;
-		CASE_TEST(limit_intptr_max);        EXPECT_EQ(1, INTPTR_MAX,       (intptr_t)        0x7fffffff); break;
-		CASE_TEST(limit_uintptr_max);       EXPECT_EQ(1, UINTPTR_MAX,      (uintptr_t)       0xffffffffU); break;
-		CASE_TEST(limit_ptrdiff_min);       EXPECT_EQ(1, PTRDIFF_MIN,      (ptrdiff_t)       0x80000000); break;
-		CASE_TEST(limit_ptrdiff_max);       EXPECT_EQ(1, PTRDIFF_MAX,      (ptrdiff_t)       0x7fffffff); break;
-		CASE_TEST(limit_size_max);          EXPECT_EQ(1, SIZE_MAX,         (size_t)          0xffffffffU); break;
-#else
-# warning "__SIZEOF_LONG__ is undefined"
-#endif /* __SIZEOF_LONG__ */
+		CASE_TEST(sizeof_long_sane);        EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break;
+		CASE_TEST(limit_intptr_min_64);     EXPECT_EQ(sizeof(long) == 8, INTPTR_MIN,  (intptr_t)  0x8000000000000000LL); break;
+		CASE_TEST(limit_intptr_max_64);     EXPECT_EQ(sizeof(long) == 8, INTPTR_MAX,  (intptr_t)  0x7fffffffffffffffLL); break;
+		CASE_TEST(limit_uintptr_max_64);    EXPECT_EQ(sizeof(long) == 8, UINTPTR_MAX, (uintptr_t) 0xffffffffffffffffULL); break;
+		CASE_TEST(limit_ptrdiff_min_64);    EXPECT_EQ(sizeof(long) == 8, PTRDIFF_MIN, (ptrdiff_t) 0x8000000000000000LL); break;
+		CASE_TEST(limit_ptrdiff_max_64);    EXPECT_EQ(sizeof(long) == 8, PTRDIFF_MAX, (ptrdiff_t) 0x7fffffffffffffffLL); break;
+		CASE_TEST(limit_size_max_64);       EXPECT_EQ(sizeof(long) == 8, SIZE_MAX,    (size_t)    0xffffffffffffffffULL); break;
+		CASE_TEST(limit_intptr_min_32);     EXPECT_EQ(sizeof(long) == 4, INTPTR_MIN,  (intptr_t)  0x80000000); break;
+		CASE_TEST(limit_intptr_max_32);     EXPECT_EQ(sizeof(long) == 4, INTPTR_MAX,  (intptr_t)  0x7fffffff); break;
+		CASE_TEST(limit_uintptr_max_32);    EXPECT_EQ(sizeof(long) == 4, UINTPTR_MAX, (uintptr_t) 0xffffffffU); break;
+		CASE_TEST(limit_ptrdiff_min_32);    EXPECT_EQ(sizeof(long) == 4, PTRDIFF_MIN, (ptrdiff_t) 0x80000000); break;
+		CASE_TEST(limit_ptrdiff_max_32);    EXPECT_EQ(sizeof(long) == 4, PTRDIFF_MAX, (ptrdiff_t) 0x7fffffff); break;
+		CASE_TEST(limit_size_max_32);       EXPECT_EQ(sizeof(long) == 4, SIZE_MAX,    (size_t)    0xffffffffU); break;
 		case __LINE__:
 			return ret; /* must be last */
 		/* note: do not set any defaults so as to permit holes above */

-- 
2.41.0