mirror of
https://sourceware.org/git/glibc.git
synced 2024-09-19 16:10:01 +00:00
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* glibc-hwcaps subdirectory test. x86_64 version.
|
|
Copyright (C) 2020-2024 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdio.h>
|
|
#include <support/check.h>
|
|
#include <sys/param.h>
|
|
#include <elf.h>
|
|
#include <get-isa-level.h>
|
|
|
|
extern int marker2 (void);
|
|
extern int marker3 (void);
|
|
extern int marker4 (void);
|
|
|
|
/* Return the x86-64-vN level, 1 for the baseline. */
|
|
static int
|
|
compute_level (void)
|
|
{
|
|
const struct cpu_features *cpu_features = __get_cpu_features ();
|
|
unsigned int isa_level = get_isa_level (cpu_features);
|
|
|
|
if (!(isa_level & GNU_PROPERTY_X86_ISA_1_V2))
|
|
return 1;
|
|
if (!(isa_level & GNU_PROPERTY_X86_ISA_1_V3))
|
|
return 2;
|
|
if (!(isa_level & GNU_PROPERTY_X86_ISA_1_V4))
|
|
return 3;
|
|
return 4;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int level = compute_level ();
|
|
printf ("info: detected x86-64 micro-architecture level: %d\n", level);
|
|
TEST_COMPARE (marker2 (), MIN (level, 2));
|
|
TEST_COMPARE (marker3 (), MIN (level, 3));
|
|
TEST_COMPARE (marker4 (), MIN (level, 4));
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|