From 4e1e2f42472744569f1540dd8410d23180e24bf9 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Sat, 8 Aug 2009 10:54:42 -0700 Subject: Support mixed SSE/AVX audit and check AVX only once. 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. --- elf/tst-audit6.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 elf/tst-audit6.c (limited to 'elf/tst-audit6.c') diff --git a/elf/tst-audit6.c b/elf/tst-audit6.c new file mode 100644 index 0000000..1f6dcb1 --- /dev/null +++ b/elf/tst-audit6.c @@ -0,0 +1,28 @@ +/* Test case for x86-64 preserved registers in dynamic linker. */ + +#include +#include +#include +#include + +extern __m128i audit_test (__m128i, __m128i, __m128i, __m128i, + __m128i, __m128i, __m128i, __m128i); + +int +main (void) +{ + unsigned int eax, ebx, ecx, edx; + + /* Run AVX test only if AVX is supported. */ + if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) + && (ecx & bit_AVX)) + { + __m128i xmm = _mm_setzero_si128 (); + __m128i ret = audit_test (xmm, xmm, xmm, xmm, xmm, xmm, xmm, xmm); + + xmm = _mm_set1_epi32 (0x98abcdef); + if (memcmp (&xmm, &ret, sizeof (ret))) + abort (); + } + return 0; +} -- cgit v1.1