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glibc/sysdeps/x86_64/tst-audit6.c

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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.
2009-08-08 17:54:42 +00:00
/* Test case for x86-64 preserved registers in dynamic linker. */
#include <stdlib.h>
#include <string.h>
#include <cpuid.h>
#include <emmintrin.h>
extern __m128i audit_test (__m128i, __m128i, __m128i, __m128i,
__m128i, __m128i, __m128i, __m128i);
Fix check for AVX enablement The AVX bit is set if the CPU supports AVX. But this doesn't mean the kernel does. Add checks according to Intel's documentation.
2011-07-21 01:21:03 +00:00
static int
avx_enabled (void)
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.
2009-08-08 17:54:42 +00:00
{
unsigned int eax, ebx, ecx, edx;
Fix check for AVX enablement The AVX bit is set if the CPU supports AVX. But this doesn't mean the kernel does. Add checks according to Intel's documentation.
2011-07-21 01:21:03 +00:00
if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0
|| (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE))
return 0;
/* Check the OS has AVX and SSE saving enabled. */
asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0));
return (eax & 6) == 6;
}
Modify several tests to use test-skeleton.c These tests were skipped by the use-test-skeleton conversion done in commit 29955b5d because they were reused in other tests via the #include directive, and so deemed worth an inspection before they were modified. This has now been done. ChangeLog: 2015-07-09 Arjun Shankar <arjun.is@lostca.se> * elf/tst-leaks1.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * localedata/tst-langinfo.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * math/test-fpucw.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * math/test-tgmath.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * math/test-tgmath2.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * setjmp/tst-setjmp.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * stdio-common/tst-sscanf.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * sysdeps/x86_64/tst-audit6.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c.
2015-07-09 15:29:17 +00:00
static int
do_test (void)
Fix check for AVX enablement The AVX bit is set if the CPU supports AVX. But this doesn't mean the kernel does. Add checks according to Intel's documentation.
2011-07-21 01:21:03 +00:00
{
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.
2009-08-08 17:54:42 +00:00
/* Run AVX test only if AVX is supported. */
Fix check for AVX enablement The AVX bit is set if the CPU supports AVX. But this doesn't mean the kernel does. Add checks according to Intel's documentation.
2011-07-21 01:21:03 +00:00
if (avx_enabled ())
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.
2009-08-08 17:54:42 +00:00
{
__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;
}
Modify several tests to use test-skeleton.c These tests were skipped by the use-test-skeleton conversion done in commit 29955b5d because they were reused in other tests via the #include directive, and so deemed worth an inspection before they were modified. This has now been done. ChangeLog: 2015-07-09 Arjun Shankar <arjun.is@lostca.se> * elf/tst-leaks1.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * localedata/tst-langinfo.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * math/test-fpucw.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * math/test-tgmath.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * math/test-tgmath2.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * setjmp/tst-setjmp.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * stdio-common/tst-sscanf.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c. * sysdeps/x86_64/tst-audit6.c (main): Converted to ... (do_test): ... this. (TEST_FUNCTION): New macro. Include test-skeleton.c.
2015-07-09 15:29:17 +00:00
#define TEST_FUNCTION do_test ()
#include "../../test-skeleton.c"
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