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https://github.com/checkpoint-restore/criu.git
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9e1bde4d57
Unlike pr_perror(), pr_err() does not append a newline. Signed-off-by: Kir Kolyshkin <kir@openvz.org> Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
42 lines
934 B
C
42 lines
934 B
C
#include <sys/auxv.h>
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#include <asm/cputable.h>
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#include <errno.h>
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#include <stdbool.h>
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#include "compel-cpu.h"
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#include "common/bitops.h"
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#include "log.h"
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#undef LOG_PREFIX
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#define LOG_PREFIX "cpu: "
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static compel_cpuinfo_t rt_info;
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static bool rt_info_done = false;
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void compel_set_cpu_cap(compel_cpuinfo_t *info, unsigned int feature) { }
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void compel_clear_cpu_cap(compel_cpuinfo_t *info, unsigned int feature) { }
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int compel_test_cpu_cap(compel_cpuinfo_t *info, unsigned int feature) { return 0; }
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int compel_cpuid(compel_cpuinfo_t *info)
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{
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info->hwcap[0] = getauxval(AT_HWCAP);
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info->hwcap[1] = getauxval(AT_HWCAP2);
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if (!info->hwcap[0] || !info->hwcap[1]) {
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pr_err("Can't read the hardware capabilities\n");
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return -1;
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}
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return 0;
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}
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bool compel_cpu_has_feature(unsigned int feature)
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{
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if (!rt_info_done) {
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compel_cpuid(&rt_info);
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rt_info_done = true;
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}
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return compel_test_cpu_cap(&rt_info, feature);
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}
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