mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-21 04:31:04 +08:00
2d63a517e4
AVX-512 ISA adds 512-bit zmm registers. This patch updates _dl_runtime_profile to pass zmm registers to run-time audit. It also changes _dl_x86_64_save_sse and _dl_x86_64_restore_sse to upport zmm registers, which are called when only when RTLD_PREPARE_FOREIGN_CALL is used. Its performance impact is minimum. * config.h.in (HAVE_AVX512_SUPPORT): New #undef. (HAVE_AVX512_ASM_SUPPORT): Likewise. * sysdeps/x86_64/bits/link.h (La_x86_64_zmm): New. (La_x86_64_vector): Add zmm. * sysdeps/x86_64/Makefile (tests): Add tst-audit10. (modules-names): Add tst-auditmod10a and tst-auditmod10b. ($(objpfx)tst-audit10): New target. ($(objpfx)tst-audit10.out): Likewise. (tst-audit10-ENV): New. (AVX512-CFLAGS): Likewise. (CFLAGS-tst-audit10.c): Likewise. (CFLAGS-tst-auditmod10a.c): Likewise. (CFLAGS-tst-auditmod10b.c): Likewise. * sysdeps/x86_64/configure.ac: Set config-cflags-avx512, HAVE_AVX512_SUPPORT and HAVE_AVX512_ASM_SUPPORT. * sysdeps/x86_64/configure: Regenerated. * sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Add AVX-512 zmm register support. (_dl_x86_64_save_sse): Likewise. (_dl_x86_64_restore_sse): Likewise. * sysdeps/x86_64/dl-trampoline.h: Updated to support different size vector registers. * sysdeps/x86_64/link-defines.sym (YMM_SIZE): New. (ZMM_SIZE): Likewise. * sysdeps/x86_64/tst-audit10.c: New file. * sysdeps/x86_64/tst-auditmod10a.c: Likewise. * sysdeps/x86_64/tst-auditmod10b.c: Likewise.
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/* Copyright (C) 2012-2014 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* Test case for x86-64 preserved registers in dynamic linker. */
|
|
|
|
#ifdef __AVX512F__
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <cpuid.h>
|
|
#include <immintrin.h>
|
|
|
|
static int
|
|
avx512_enabled (void)
|
|
{
|
|
unsigned int eax, ebx, ecx, edx;
|
|
|
|
if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0
|
|
|| (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE))
|
|
return 0;
|
|
|
|
__cpuid_count (7, 0, eax, ebx, ecx, edx);
|
|
if (!(ebx & bit_AVX512F))
|
|
return 0;
|
|
|
|
asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0));
|
|
|
|
/* Verify that ZMM, YMM and XMM states are enabled. */
|
|
return (eax & 0xe6) == 0xe6;
|
|
}
|
|
|
|
|
|
extern __m512i audit_test (__m512i, __m512i, __m512i, __m512i,
|
|
__m512i, __m512i, __m512i, __m512i);
|
|
int
|
|
main (void)
|
|
{
|
|
/* Run AVX512 test only if AVX512 is supported. */
|
|
if (avx512_enabled ())
|
|
{
|
|
__m512i zmm = _mm512_setzero_si512 ();
|
|
__m512i ret = audit_test (zmm, zmm, zmm, zmm, zmm, zmm, zmm, zmm);
|
|
|
|
zmm = _mm512_set1_epi64 (0x12349876);
|
|
|
|
if (memcmp (&zmm, &ret, sizeof (ret)))
|
|
abort ();
|
|
}
|
|
return 0;
|
|
}
|
|
#else
|
|
int
|
|
main (void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|