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4e1e2f4247
This patch fixes mixed SSE/AVX audit and checks AVX only once in _dl_runtime_profile. When an AVX or SSE register value in pltenter is modified, we have to make sure that the SSE part value is the same in both lr_xmm and lr_vector fields so that pltexit will get the correct value from either lr_xmm or lr_vector fields. AVX-enabled pltenter should update both lr_xmm and lr_vector fields to support stacked AVX/SSE pltenter functions.
29 lines
671 B
C
29 lines
671 B
C
/* Test case for x86-64 preserved registers in dynamic linker. */
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#include <stdlib.h>
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#include <string.h>
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#include <cpuid.h>
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#include <emmintrin.h>
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extern __m128i audit_test (__m128i, __m128i, __m128i, __m128i,
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__m128i, __m128i, __m128i, __m128i);
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int
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main (void)
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{
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unsigned int eax, ebx, ecx, edx;
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/* Run AVX test only if AVX is supported. */
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if (__get_cpuid (1, &eax, &ebx, &ecx, &edx)
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&& (ecx & bit_AVX))
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{
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__m128i xmm = _mm_setzero_si128 ();
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__m128i ret = audit_test (xmm, xmm, xmm, xmm, xmm, xmm, xmm, xmm);
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xmm = _mm_set1_epi32 (0x98abcdef);
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if (memcmp (&xmm, &ret, sizeof (ret)))
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abort ();
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}
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return 0;
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}
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