Fix elf: Do not duplicate the GLIBC_TUNABLES string

Fix issues in sysdeps/x86/tst-hwcap-tunables.c added by

Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Wed Dec 6 10:24:01 2023 -0300

    elf: Do not duplicate the GLIBC_TUNABLES string

1. -AVX,-AVX2,-AVX512F should be used to disable AVX, AVX2 and AVX512.
2. AVX512 IFUNC functions check AVX512VL.  -AVX512VL should be added
to disable these functions.

This fixed:

FAIL: elf/tst-hwcap-tunables
...
[0] Spawned test for -Prefer_ERMS,-Prefer_FSRM,-AVX,-AVX2,-AVX_Usable,-AVX2_Usable,-AVX512F_Usable,-SSE4_1,-SSE4_2,-SSSE3,-Fast_Unaligned_Load,-ERMS,-AVX_Fast_Unaligned_Load
error: subprocess failed: tst-tunables
error:   unexpected output from subprocess
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false

[1] Spawned test for ,-,-Prefer_ERMS,-Prefer_FSRM,-AVX,-AVX2,-AVX_Usable,-AVX2_Usable,-AVX512F_Usable,-SSE4_1,-SSE4_2,,-SSSE3,-Fast_Unaligned_Load,,-,-ERMS,-AVX_Fast_Unaligned_Load,-,
error: subprocess failed: tst-tunables
error:   unexpected output from subprocess
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false
../sysdeps/x86/tst-hwcap-tunables.c:91: numeric comparison failure
   left: 1 (0x1); from: impls[i].usable
  right: 0 (0x0); from: false

error: 2 test failures

on Intel Tiger Lake.

diff --git a/sysdeps/x86/tst-hwcap-tunables.c b/sysdeps/x86/tst-hwcap-tunables.c
index 01a9377f7e4bc6b1fb47d0930a7837ff57f839ca..4e36aa077d96fccd8687ee4b6760772a07deba05 100644 (file)
--- a/sysdeps/x86/tst-hwcap-tunables.c
+++ b/sysdeps/x86/tst-hwcap-tunables.c
@@ -58,17 +58,17 @@ static const struct test_t
 {
   {
     /* Disable everything.  */
-    "-Prefer_ERMS,-Prefer_FSRM,-AVX,-AVX2,-AVX_Usable,-AVX2_Usable,"
-    "-AVX512F_Usable,-SSE4_1,-SSE4_2,-SSSE3,-Fast_Unaligned_Load,-ERMS,"
+    "-Prefer_ERMS,-Prefer_FSRM,-AVX,-AVX2,-AVX512F,-AVX512VL,"
+    "-SSE4_1,-SSE4_2,-SSSE3,-Fast_Unaligned_Load,-ERMS,"
     "-AVX_Fast_Unaligned_Load",
     test_1,
     array_length (test_1)
   },
   {
     /* Same as before, but with some empty suboptions.  */
-    ",-,-Prefer_ERMS,-Prefer_FSRM,-AVX,-AVX2,-AVX_Usable,-AVX2_Usable,"
-    "-AVX512F_Usable,-SSE4_1,-SSE4_2,,-SSSE3,-Fast_Unaligned_Load,,-,-ERMS,"
-    "-AVX_Fast_Unaligned_Load,-,",
+    ",-,-Prefer_ERMS,-Prefer_FSRM,-AVX,-AVX2,-AVX512F,-AVX512VL,"
+    "-SSE4_1,-SSE4_2,-SSSE3,-Fast_Unaligned_Load,,-,"
+    "-ERMS,-AVX_Fast_Unaligned_Load,-,",
     test_1,
     array_length (test_1)
   }