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Fix floating point exception in cpu_identify_all() for unsupported CPU vendors

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The Tumultuous Unicorn Of Darkness 2023-06-03 20:11:29 +02:00
parent d8e9f3d58e
commit 7974741993
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libcpuid/cpuid_main.c
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@ -1352,7 +1352,7 @@ int cpu_identify_all(struct cpu_raw_data_array_t* raw_array, struct system_id_t*
}
else {
/* Note: if SMT is disabled by BIOS, smt_divisor will no reflect the current state properly */
is_smt_supported = (system->cpu_types[cpu_type_index].num_logical_cpus % system->cpu_types[cpu_type_index].num_cores) == 0;
is_smt_supported = system->cpu_types[cpu_type_index].num_cores > 0 ? (system->cpu_types[cpu_type_index].num_logical_cpus % system->cpu_types[cpu_type_index].num_cores) == 0 : false;
smt_divisor = is_smt_supported ? system->cpu_types[cpu_type_index].num_logical_cpus / system->cpu_types[cpu_type_index].num_cores : 1.0;
system->cpu_types[cpu_type_index].num_cores = (int32_t) num_logical_cpus / smt_divisor;
}