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ntdll: Parse ARM64 CPU info.

This commit is contained in:
André Hentschel 2015-05-21 16:13:35 +02:00 committed by Alexandre Julliard
parent 48d150dc31
commit b5b34220cc
1 changed files with 48 additions and 1 deletions
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49
dlls/ntdll/nt.c
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@ -1146,7 +1146,54 @@ static inline void get_cpuinfo(SYSTEM_CPU_INFORMATION* info)
static inline void get_cpuinfo(SYSTEM_CPU_INFORMATION* info)
{
info->Level = 8;
#ifdef linux
char line[512];
char *s, *value;
FILE *f = fopen("/proc/cpuinfo", "r");
if (f)
{
while (fgets(line, sizeof(line), f) != NULL)
{
/* NOTE: the ':' is the only character we can rely on */
if (!(value = strchr(line,':')))
continue;
/* terminate the valuename */
s = value - 1;
while ((s >= line) && isspace(*s)) s--;
*(s + 1) = '\0';
/* and strip leading spaces from value */
value += 1;
while (isspace(*value)) value++;
if ((s = strchr(value,'\n')))
*s='\0';
if (!strcasecmp(line, "CPU architecture"))
{
if (isdigit(value[0]))
info->Level = atoi(value);
continue;
}
if (!strcasecmp(line, "CPU revision"))
{
if (isdigit(value[0]))
info->Revision = atoi(value);
continue;
}
if (!strcasecmp(line, "Features"))
{
if (strstr(value, "crc32"))
user_shared_data->ProcessorFeatures[PF_ARM_V8_CRC32_INSTRUCTIONS_AVAILABLE] = TRUE;
if (strstr(value, "aes"))
user_shared_data->ProcessorFeatures[PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE] = TRUE;
continue;
}
}
fclose(f);
}
#else
FIXME("CPU Feature detection not implemented.\n");
#endif
info->Level = max(info->Level, 8);
user_shared_data->ProcessorFeatures[PF_ARM_V8_INSTRUCTIONS_AVAILABLE] = TRUE;
info->Architecture = PROCESSOR_ARCHITECTURE_ARM64;
}