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x86: Update tst-gnu2-tls2 tests

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Update tst-gnu2-tls2 tests to set XMM0...XMM7 to all 1s in malloc to
verify that XMM registers are preserved when _dl_tlsdesc_dynamic is
called by clearing vectors with zeroed XMM registers before
_dl_tlsdesc_dynamic and using these XMM registers to clear vectors
after _dl_tlsdesc_dynamic.  This improves the BZ #31372 test.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu
2025-06-09 08:17:49 +08:00
parent 848f0e46f0
commit 0ef7965e5b
8 changed files with 80 additions and 29 deletions
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4
elf/tst-gnu2-tls2.c
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@@ -25,7 +25,7 @@
#include <support/xthread.h>
#include <support/check.h>
#include <support/test-driver.h>
#include "tst-gnu2-tls2.h"
#include <tst-gnu2-tls2.h>
#ifndef IS_SUPPORTED
# define IS_SUPPORTED() true
@@ -75,7 +75,7 @@ close_mod (int i)
static void
access_mod (int i, const char *sym)
{
struct tls var = { -1, -1, -1, -1 };
struct tls var = { -4, -4, -4, -4 };
struct tls *(*f) (struct tls *) = xdlsym (mod[i], sym);
/* Check that our malloc is called. */
malloc_counter = 0;