Fix elf: Do not duplicate the GLIBC_TUNABLES string
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Commit Message
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.
I am checking it in as an obvious fix.
H.J.
---
sysdeps/x86/tst-hwcap-tunables.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
Comments
On 19/12/23 18:27, H.J. Lu wrote:
> 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.
>
> I am checking it in as an obvious fix.
>
> H.J.
> ---
> sysdeps/x86/tst-hwcap-tunables.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/sysdeps/x86/tst-hwcap-tunables.c b/sysdeps/x86/tst-hwcap-tunables.c
> index 01a9377f7e..4e36aa077d 100644
> --- 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)
> }
LGTM, thanks.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
@@ -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)
}