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/* Print CPU diagnostics data in ld.so. x86 version.
Copyright (C) 2021-2024 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 <dl-diagnostics.h>
#include <ldsodefs.h>
static void
print_cpu_features_value (const char *label, uint64_t value)
{
_dl_printf ("x86.cpu_features.");
_dl_diagnostics_print_labeled_value (label, value);
}
static void
print_cpu_feature_internal (unsigned int index, const char *kind,
unsigned int reg, uint32_t value)
{
_dl_printf ("x86.cpu_features.features[0x%x].%s[0x%x]=0x%x\n",
index, kind, reg, value);
}
static void
print_cpu_feature_preferred (const char *label, unsigned int flag)
{
_dl_printf("x86.cpu_features.preferred.%s=0x%x\n", label, flag);
}
void
_dl_diagnostics_cpu (void)
{
const struct cpu_features *cpu_features = __get_cpu_features ();
print_cpu_features_value ("basic.kind", cpu_features->basic.kind);
print_cpu_features_value ("basic.max_cpuid", cpu_features->basic.max_cpuid);
print_cpu_features_value ("basic.family", cpu_features->basic.family);
print_cpu_features_value ("basic.model", cpu_features->basic.model);
print_cpu_features_value ("basic.stepping", cpu_features->basic.stepping);
for (unsigned int index = 0; index < CPUID_INDEX_MAX; ++index)
{
/* The index values are part of the ABI via
<sys/platform/x86.h>, so translating them to strings is not
necessary. */
for (unsigned int reg = 0; reg < 4; ++reg)
print_cpu_feature_internal
(index, "cpuid", reg,
cpu_features->features[index].cpuid_array[reg]);
for (unsigned int reg = 0; reg < 4; ++reg)
print_cpu_feature_internal
(index, "active", reg,
cpu_features->features[index].active_array[reg]);
}
/* The preferred indicators are not part of the ABI and need to be
translated. */
#define BIT(x) \
print_cpu_feature_preferred (#x, CPU_FEATURE_PREFERRED_P (cpu_features, x));
#include "cpu-features-preferred_feature_index_1.def"
#undef BIT
print_cpu_features_value ("isa_1", cpu_features->isa_1);
print_cpu_features_value ("xsave_state_size",
cpu_features->xsave_state_size);
print_cpu_features_value ("xsave_state_full_size",
cpu_features->xsave_state_full_size);
print_cpu_features_value ("data_cache_size", cpu_features->data_cache_size);
print_cpu_features_value ("shared_cache_size",
cpu_features->shared_cache_size);
print_cpu_features_value ("non_temporal_threshold",
cpu_features->non_temporal_threshold);
print_cpu_features_value ("rep_movsb_threshold",
cpu_features->rep_movsb_threshold);
print_cpu_features_value ("rep_movsb_stop_threshold",
cpu_features->rep_movsb_stop_threshold);
print_cpu_features_value ("rep_stosb_threshold",
cpu_features->rep_stosb_threshold);
print_cpu_features_value ("level1_icache_size",
cpu_features->level1_icache_size);
print_cpu_features_value ("level1_icache_linesize",
cpu_features->level1_icache_linesize);
print_cpu_features_value ("level1_dcache_size",
cpu_features->level1_dcache_size);
print_cpu_features_value ("level1_dcache_assoc",
cpu_features->level1_dcache_assoc);
print_cpu_features_value ("level1_dcache_linesize",
cpu_features->level1_dcache_linesize);
print_cpu_features_value ("level2_cache_size",
cpu_features->level2_cache_size);
print_cpu_features_value ("level2_cache_assoc",
cpu_features->level2_cache_assoc);
print_cpu_features_value ("level2_cache_linesize",
cpu_features->level2_cache_linesize);
print_cpu_features_value ("level3_cache_size",
cpu_features->level3_cache_size);
print_cpu_features_value ("level3_cache_assoc",
cpu_features->level3_cache_assoc);
print_cpu_features_value ("level3_cache_linesize",
cpu_features->level3_cache_linesize);
print_cpu_features_value ("level4_cache_size",
cpu_features->level4_cache_size);
print_cpu_features_value ("cachesize_non_temporal_divisor",
cpu_features->cachesize_non_temporal_divisor);
_Static_assert (
offsetof (struct cpu_features, cachesize_non_temporal_divisor)
+ sizeof (cpu_features->cachesize_non_temporal_divisor)
== sizeof (*cpu_features),
"last cpu_features field has been printed");
}
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