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lscpu.c
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lscpu.c
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#include <sys/param.h>
#include <sys/sysctl.h>
#include <errno.h>
#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <getopt.h>
#if defined(__amd64__) || defined(__i386__)
#include <cpuid.h>
#endif
/* macro definitions */
#define CACHE_SIZE_LEN (8)
#define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
#define CPUID_STANDARD_0_MASK (0x00)
#define CPUID_STANDARD_1_MASK (0x01)
#define CPUID_STANDARD_2_MASK (0x02)
#define CPUID_STANDARD_4_MASK (0x04)
#define CPUID_STANDARD_7_MASK (0x07)
#define CPUID_STANDARD_B_MASK (0x0B)
#define CPUID_EXTENDED_1_MASK (0x01)
#define CPUID_EXTENDED_5_MASK (0x05)
#define CPUID_EXTENDED_6_MASK (0x06)
#define CPUID_EXTENDED_8_MASK (0x08)
#define CPUID_MAX_STANDARD_FUNCTION (0x17)
#define CPUID_MAX_EXTENDED_FUNCTION (0x08)
/* struct definitions */
typedef struct
{
char arch[16];
int byte_order;
char model[128];
char vendor[32];
int active_cpu_num;
int total_cpu_num;
int speed;
} gen_cpu_info;
typedef struct
{
int mib_code;
void *old;
size_t old_len;
char *err_msg;
} sysctl_get_cpu_info;
typedef struct
{
int standard_mask;
int extended_mask;
int intel_use_leaf_4_get_cache;
char vendor[13];
unsigned char stepping;
unsigned char model;
unsigned short family;
int threads_per_core;
int cores_per_socket;
char *l1d_cache;
char *l1i_cache;
char *l2_cache;
char *l3_cache;
char flags[2048];
} x86_cpu_info;
/* function declarations */
#if defined(__amd64__) || defined(__i386__)
static int is_amd_cpu(char *vendor);
static int is_intel_cpu(char *vendor);
static int x86_cpu_support_standard_flag(int flag, int mask);
static int get_x86_cpu_standard_flags(int intel, uint32_t ecx, uint32_t edx, char *flags, size_t len);
static int get_x86_cpu_structured_extended_flags(int intel, uint32_t ebx, uint32_t ecx, char *flags, size_t len);
static int get_x86_cpu_extended_flags(int intel, uint32_t ecx, uint32_t edx, char *flags, size_t len);
static void get_x86_cpu_info(x86_cpu_info *x86_info);
#endif
static void usage(void);
static void print_cpu_info(gen_cpu_info *gen_info, x86_cpu_info *x86_info);
/* variables definitions */
gen_cpu_info gen_info;
x86_cpu_info x86_info;
char intel_l1d_cache[CACHE_SIZE_LEN];
char intel_l1i_cache[CACHE_SIZE_LEN];
char intel_l2_cache[CACHE_SIZE_LEN];
char intel_l3_cache[CACHE_SIZE_LEN];
char amd_l1d_cache[CACHE_SIZE_LEN];
char amd_l1i_cache[CACHE_SIZE_LEN];
char amd_l2_cache[CACHE_SIZE_LEN];
char amd_l3_cache[CACHE_SIZE_LEN];
/* function definitions */
#if defined(__amd64__) || defined(__i386__)
static int is_amd_cpu(char *vendor)
{
return (!strcmp(vendor, "AMDisbetter!") || !strcmp(vendor, "AuthenticAMD"));
}
static int is_intel_cpu(char *vendor)
{
return !strcmp(vendor, "GenuineIntel");
}
static int x86_cpu_support_standard_flag(int flag, int mask)
{
return (flag & (1 << mask));
}
static void parse_intel_cache_value(x86_cpu_info *x86_info, unsigned char value)
{
switch (value)
{
case 0x06:
{
x86_info->l1i_cache = "8K";
break;
}
case 0x08:
{
x86_info->l1i_cache = "16K";
break;
}
case 0x09:
case 0x30:
{
x86_info->l1i_cache = "32K";
break;
}
case 0x0A:
case 0x66:
{
x86_info->l1d_cache = "8K";
break;
}
case 0x0C:
case 0x0D:
case 0x60:
case 0x67:
{
x86_info->l1d_cache = "16K";
break;
}
case 0x68:
case 0x2C:
{
x86_info->l1d_cache = "32K";
break;
}
case 0x39:
case 0x3B:
case 0x41:
case 0x79:
{
x86_info->l2_cache = "128K";
break;
}
case 0x3A:
{
x86_info->l2_cache = "192K";
break;
}
case 0x3C:
case 0x42:
case 0x7A:
case 0x82:
{
x86_info->l2_cache = "256K";
break;
}
case 0x3D:
{
x86_info->l2_cache = "384K";
break;
}
case 0x3E:
case 0x43:
case 0x7B:
case 0x7F:
case 0x83:
case 0x86:
{
x86_info->l2_cache = "512K";
break;
}
case 0x44:
case 0x7C:
case 0x84:
case 0x87:
{
x86_info->l2_cache = "1M";
break;
}
case 0x45:
case 0x7D:
case 0x85:
{
x86_info->l2_cache = "2M";
break;
}
case 0x48:
{
x86_info->l2_cache = "3M";
break;
}
case 0x4E:
{
x86_info->l2_cache = "6M";
break;
}
case 0x49:
{
x86_info->l3_cache = x86_info->l2_cache = "4M";
break;
}
case 0xD0:
{
x86_info->l3_cache = "512K";
break;
}
case 0x23:
case 0xD1:
case 0xD6:
{
x86_info->l3_cache = "1M";
break;
}
case 0xDC:
{
x86_info->l3_cache = "1.5M";
break;
}
case 0xDD:
{
x86_info->l3_cache = "3M";
break;
}
case 0x25:
case 0xD2:
case 0xD7:
case 0xE2:
{
x86_info->l3_cache = "2M";
break;
}
case 0x29:
case 0x46:
case 0xD8:
case 0xE3:
{
x86_info->l3_cache = "4M";
break;
}
case 0x4A:
case 0xDE:
{
x86_info->l3_cache = "6M";
break;
}
case 0x47:
case 0x4B:
case 0xE4:
{
x86_info->l3_cache = "8M";
break;
}
case 0x4C:
case 0xEA:
{
x86_info->l3_cache = "12M";
break;
}
case 0x4D:
{
x86_info->l3_cache = "16M";
break;
}
case 0xEB:
{
x86_info->l3_cache = "18M";
break;
}
case 0xEC:
{
x86_info->l3_cache = "24M";
break;
}
case 0xFF:
{
x86_info->intel_use_leaf_4_get_cache = 1;
break;
}
default:
{
break;
}
}
return;
}
static int get_x86_cpu_standard_flags(int intel, uint32_t ecx, uint32_t edx, char *flags, size_t len)
{
return snprintf(flags, len,
/* edx*/
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s"
"%s%s%s%s"
"%s%s%s"
/* ecx */
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s",
edx & 0x00000001 ? "fpu " : "",
edx & 0x00000002 ? "vme " : "",
edx & 0x00000004 ? "de " : "",
edx & 0x00000008 ? "pse " : "",
edx & 0x00000010 ? "tsc " : "",
edx & 0x00000020 ? "msr " : "",
edx & 0x00000040 ? "pae " : "",
edx & 0x00000080 ? "mce " : "",
edx & 0x00000100 ? "cx8 " : "",
edx & 0x00000200 ? "apic " : "",
edx & 0x00000800 ? "sep " : "",
edx & 0x00001000 ? "mtrr " : "",
edx & 0x00002000 ? "pge " : "",
edx & 0x00004000 ? "mca " : "",
edx & 0x00008000 ? "cmov " : "",
edx & 0x00010000 ? "pat " : "",
edx & 0x00020000 ? "pse36 " : "",
intel ? (edx & 0x00040000 ? "psn " : "") : "",
edx & 0x00080000 ? "cflsh " : "",
intel ? (edx & 0x00200000 ? "ds " : "") : "",
intel ? (edx & 0x00400000 ? "acpi " : "") : "",
edx & 0x00800000 ? "mmx " : "",
edx & 0x01000000 ? "fxsr " : "",
edx & 0x02000000 ? "sse " : "",
edx & 0x04000000 ? "sse2 " : "",
intel ? (edx & 0x08000000 ? "ss " : "") : "",
edx & 0x10000000 ? "htt " : "",
intel ? (edx & 0x20000000 ? "tm " : "") : "",
intel ? (edx & 0x80000000 ? "pbe " : "") : "",
ecx & 0x00000001 ? "sse3 " : "",
ecx & 0x00000002 ? "pclmulqdq " : "",
intel ? (ecx & 0x00000004 ? "dtes64 " : "") : "",
ecx & 0x00000008 ? "monitor " : "",
intel ? (ecx & 0x00000010 ? "ds_cpl " : "") : "",
intel ? (ecx & 0x00000020 ? "vmx " : "") : "",
intel ? (ecx & 0x00000040 ? "smx " : "") : "",
intel ? (ecx & 0x00000080 ? "est " : "") : "",
intel ? (ecx & 0x00000100 ? "tm2 " : "") : "",
ecx & 0x00000200 ? "ssse3 " : "",
intel ? (ecx & 0x00000400 ? "cnxt-id " : "") : "",
intel ? (ecx & 0x00000800 ? "sdbg " : "") : "",
ecx & 0x00001000 ? "fma " : "",
ecx & 0x00002000 ? "cx16 " : "",
intel ? (ecx & 0x00004000 ? "xtpr " : "") : "",
intel ? (ecx & 0x00008000 ? "pdcm " : "") : "",
intel ? (ecx & 0x00020000 ? "pcid " : "") : "",
intel ? (ecx & 0x00040000 ? "dca " : "") : "",
ecx & 0x00080000 ? "sse4_1 " : "",
ecx & 0x00100000 ? "sse4_2 " : "",
intel ? (ecx & 0x00200000 ? "x2apic " : "") : "",
intel ? (ecx & 0x00400000 ? "movbe " : "") : "",
ecx & 0x00800000 ? "popcnt " : "",
intel ? (ecx & 0x01000000 ? "tsc_deadline " : "") : "",
ecx & 0x02000000 ? "aes " : "",
ecx & 0x04000000 ? "xsave " : "",
ecx & 0x08000000 ? "osxsave " : "",
ecx & 0x10000000 ? "avx " : "",
ecx & 0x20000000 ? "f16c " : "",
ecx & 0x40000000 ? "rdrnd " : "",
ecx & 0x80000000 ? "hypervisor " : "");
}
static int get_x86_cpu_structured_extended_flags(int intel, uint32_t ebx, uint32_t ecx, char *flags, size_t len)
{
return snprintf(flags, len,
/* ebx */
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s"
"%s%s"
"%s"
/* ecx */
"%s%s%s"
"%s"
"%s"
"%s",
ebx & 0x00000001 ? "fsgsbase " : "",
intel ? (ebx & 0x00000002 ? "tsc_adjust " : "") : "",
intel ? (ebx & 0x00000004 ? "sgx " : "") : "",
ebx & 0x00000008 ? "bmi1 " : "",
intel ? (ebx & 0x00000010 ? "hle " : "") : "",
ebx & 0x00000020 ? "avx2 " : "",
intel ? (ebx & 0x00000040 ? "fp_dp " : "") : "",
ebx & 0x00000080 ? "smep " : "",
ebx & 0x00000100 ? "bmi2 " : "",
intel ? (ebx & 0x00000200 ? "erms " : "") : "",
intel ? (ebx & 0x00000400 ? "invpcid " : "") : "",
intel ? (ebx & 0x00000800 ? "rtm " : "") : "",
intel ? (ebx & 0x00001000 ? "pqm " : "") : "",
intel ? (ebx & 0x00002000 ? "fpcsds " : "") : "",
intel ? (ebx & 0x00004000 ? "mpx " : "") : "",
intel ? (ebx & 0x00008000 ? "pqe " : "") : "",
intel ? (ebx & 0x00010000 ? "pat " : "") : "",
intel ? (ebx & 0x00020000 ? "pse36 " : "") : "",
intel ? (ebx & 0x00040000 ? "rdseed " : "") : "",
intel ? (ebx & 0x00080000 ? "adx " : "") : "",
intel ? (ebx & 0x00100000 ? "smap " : "") : "",
intel ? (ebx & 0x00800000 ? "clflushopt " : "") : "",
intel ? (ebx & 0x01000000 ? "clwb " : "") : "",
intel ? (ebx & 0x02000000 ? "intel_pt " : "") : "",
intel ? (ebx & 0x10000000 ? "sha " : "") : "",
intel ? (ecx & 0x00000001 ? "prefetchwt1 " : "") : "",
intel ? (ecx & 0x00000004 ? "umip " : "") : "",
intel ? (ecx & 0x00000008 ? "pku " : "") : "",
intel ? (ecx & 0x00000010 ? "ospke " : "") : "",
intel ? (ecx & 0x00040000 ? "rdpid " : "") : "",
intel ? (ecx & 0x40000000 ? "sgx_lc " : "") : "");
}
static int get_x86_cpu_extended_flags(int intel, uint32_t ecx, uint32_t edx, char *flags, size_t len)
{
return snprintf(flags, len,
/* edx*/
""
""
"%s"
""
"%s"
"%s%s"
"%s%s%s"
"%s%s%s"
/* ecx */
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s%s"
"%s%s%s"
"%s%s%s"
"%s%s%s"
"%s%s%s"
"%s",
edx & 0x00000800 ? "syscall " : "",
intel ? "" : (edx & 0x00080000 ? "mp " : ""),
edx & 0x00100000 ? "nx " : "",
intel ? "" : (edx & 0x00400000 ? "mmxext " : ""),
intel ? "" : (edx & 0x02000000 ? "fxsr_opt " : ""),
edx & 0x04000000 ? "pdpe1gb " : "",
edx & 0x08000000 ? "rdtscp " : "",
edx & 0x20000000 ? "lm " : "",
intel ? "" : (edx & 0x40000000 ? "3dnowext " : ""),
intel ? "" : (edx & 0x80000000 ? "3dnow " : ""),
ecx & 0x00000001 ? "lahf_lm " : "",
intel ? "" : (ecx & 0x00000002 ? "cmp_legacy " : ""),
intel ? "" : (ecx & 0x00000004 ? "svm " : ""),
intel ? "" : (ecx & 0x00000008 ? "extapic " : ""),
intel ? "" : (ecx & 0x00000010 ? "cr8_legacy " : ""),
ecx & 0x00000020 ? "lzcnt " : "",
intel ? "" : (ecx & 0x00000040 ? "sse4a " : ""),
intel ? "" : (ecx & 0x00000080 ? "misalignsse " : ""),
intel ? "" : (ecx & 0x00000100 ? "3dnowprefetch " : ""),
intel ? "" : (ecx & 0x00000200 ? "osvw " : ""),
intel ? "" : (ecx & 0x00000400 ? "ibs " : ""),
intel ? "" : (ecx & 0x00000800 ? "xop " : ""),
intel ? "" : (ecx & 0x00001000 ? "skinit " : ""),
intel ? "" : (ecx & 0x00002000 ? "wdt " : ""),
intel ? "" : (ecx & 0x00008000 ? "lwp " : ""),
intel ? "" : (ecx & 0x00010000 ? "fma4 " : ""),
intel ? "" : (ecx & 0x00020000 ? "tce " : ""),
intel ? "" : (ecx & 0x00080000 ? "nodeid_msr " : ""),
intel ? "" : (ecx & 0x00200000 ? "tbm " : ""),
intel ? "" : (ecx & 0x00400000 ? "topoext " : ""),
intel ? "" : (ecx & 0x00800000 ? "perfctr_core " : ""),
intel ? "" : (ecx & 0x01000000 ? "perfctr_nb " : ""),
intel ? "" : (ecx & 0x02000000 ? "dbx " : ""),
intel ? "" : (ecx & 0x08000000 ? "perftsc " : ""),
intel ? "" : (ecx & 0x10000000 ? "pcx_l2i " : ""));
}
static void get_x86_cpu_info(x86_cpu_info *x86_info)
{
int i = 0, flag_len = 0;
uint32_t eax, ebx, ecx, edx;
__cpuid(0, eax, ebx, ecx, edx);
memcpy(x86_info->vendor, &ebx, sizeof(ebx));
memcpy(&(x86_info->vendor[4]), &edx, sizeof(edx));
memcpy(&(x86_info->vendor[8]), &ecx, sizeof(ecx));
for (i = 0; (i <= eax) && (i <= CPUID_MAX_STANDARD_FUNCTION); i++)
{
x86_info->standard_mask |= (1 << i);
}
__cpuid(0x80000000, eax, ebx, ecx, edx);
eax &= ~0x80000000;
for (i = 0; (i <= eax) && (i <= CPUID_MAX_EXTENDED_FUNCTION); i++)
{
x86_info->extended_mask |= (1 << i);
}
eax = CPUID_STANDARD_1_MASK;
if (x86_info->standard_mask & (1 << eax))
{
__cpuid(eax, eax, ebx, ecx, edx);
x86_info->stepping = eax & 0xF;
x86_info->family = (eax >> 8) & 0xF;
x86_info->model = (eax >> 4) & 0xF;
if ((x86_info->family == 6) || (x86_info->family == 15))
{
x86_info->model |= (eax >> 12) & 0xF0;
if (x86_info->family == 15)
{
x86_info->family += (eax >> 20) & 0xFF;
}
}
if (is_intel_cpu(x86_info->vendor))
{
flag_len += get_x86_cpu_standard_flags(1, ecx, edx, x86_info->flags + flag_len, sizeof(x86_info->flags) - flag_len);
}
else if (is_amd_cpu(x86_info->vendor))
{
flag_len += get_x86_cpu_standard_flags(0, ecx, edx, x86_info->flags + flag_len, sizeof(x86_info->flags) - flag_len);
}
}
eax = CPUID_STANDARD_2_MASK;
if ((is_intel_cpu(x86_info->vendor)) && (x86_info->standard_mask & (1 << eax)))
{
int i = 0, count = 0;
uint32_t cache[4]; /* eax, ebx, ecx, edx */
__cpuid(eax, cache[0], cache[1], cache[2], cache[3]);
count = cache[0] & 0xFF;
while (count--)
{
for (i = 0; i < 4; i++)
{
if (!(cache[i] & 0x80000000))
{
if (i)
{
parse_intel_cache_value(x86_info, cache[i] & 0xFF);
}
parse_intel_cache_value(x86_info, (cache[i] >> 8) & (0xFF));
parse_intel_cache_value(x86_info, (cache[i] >> 16) & (0xFF));
parse_intel_cache_value(x86_info, (cache[i] >> 24) & (0xFF));
}
}
}
}
if ((is_intel_cpu(x86_info->vendor)) && (x86_info->standard_mask & (1 << eax)) && (x86_info->intel_use_leaf_4_get_cache))
{
int subleaf = 0;
for (subleaf = 0; ; subleaf++)
{
unsigned char cache_type = 0, cache_level = 0;
int cache_size;
__cpuid_count(CPUID_STANDARD_4_MASK, subleaf, eax, ebx, ecx, edx);
cache_type = eax & 0x1F;
if (!cache_type)
{
break;
}
cache_size = (int)((((ebx >> 22) & 0x3FF) + 1) * (((ebx >> 10) & 0x3FF) + 1) *
((ebx & 0xFFF) + 1) * (ecx + 1) / 1024);
if (!cache_size)
{
break;
}
cache_level = (eax >> 5) & 0x7;
switch (cache_level)
{
case 1:
{
if (cache_type == 1)
{
snprintf(intel_l1d_cache, sizeof(intel_l1d_cache), "%dK", cache_size);
x86_info->l1d_cache = intel_l1d_cache;
}
else if (cache_type == 2)
{
snprintf(intel_l1i_cache, sizeof(intel_l1i_cache), "%dK", cache_size);
x86_info->l1i_cache = intel_l1i_cache;
}
break;
}
case 2:
{
if (cache_type == 3)
{
snprintf(intel_l2_cache, sizeof(intel_l2_cache), "%dK", cache_size);
x86_info->l2_cache = intel_l2_cache;
}
break;
}
case 3:
{
if (cache_type == 3)
{
int mega_size = cache_size / 1024;
if (mega_size)
{
snprintf(intel_l3_cache, sizeof(intel_l3_cache), "%dM", cache_size / 1024);
}
else
{
snprintf(intel_l3_cache, sizeof(intel_l3_cache), "%dK", cache_size);
}
x86_info->l3_cache = intel_l3_cache;
}
break;
}
default:
{
break;
}
}
}
}
eax = CPUID_STANDARD_7_MASK;
ecx = 0;
if (x86_info->standard_mask & (1 << eax))
{
__cpuid(eax, eax, ebx, ecx, edx);
if (is_intel_cpu(x86_info->vendor))
{
flag_len += get_x86_cpu_structured_extended_flags(1, ebx, ecx, x86_info->flags + flag_len, sizeof(x86_info->flags) - flag_len);
}
else if (is_amd_cpu(x86_info->vendor))
{
flag_len += get_x86_cpu_structured_extended_flags(0, ebx, ecx, x86_info->flags + flag_len, sizeof(x86_info->flags) - flag_len);
}
}
if ((is_intel_cpu(x86_info->vendor)) && (x86_info->standard_mask & (1 << CPUID_STANDARD_B_MASK)))
{
int subleaf = 0;
for (subleaf = 0; ; subleaf++)
{
int level_type = 0;
__cpuid_count(CPUID_STANDARD_B_MASK, subleaf, eax, ebx, ecx, edx);
if (!eax && !ebx)
{
break;
}
level_type = (ecx >> 8) & 0xFF;
if (level_type == 1)
{
x86_info->threads_per_core = ebx;
}
else if (level_type == 2)
{
x86_info->cores_per_socket = ebx;
}
}
if (x86_info->threads_per_core)
{
x86_info->cores_per_socket = x86_info->cores_per_socket / x86_info->threads_per_core;
}
}
if (x86_info->extended_mask & (1 << CPUID_EXTENDED_1_MASK))
{
__cpuid(0x80000000 | CPUID_EXTENDED_1_MASK, eax, ebx, ecx, edx);
if (is_intel_cpu(x86_info->vendor))
{
flag_len += get_x86_cpu_extended_flags(1, ecx, edx, x86_info->flags + flag_len, sizeof(x86_info->flags) - flag_len);
}
else if (is_amd_cpu(x86_info->vendor))
{
flag_len += get_x86_cpu_extended_flags(0, ecx, edx, x86_info->flags + flag_len, sizeof(x86_info->flags) - flag_len);
}
}
if ((is_amd_cpu(x86_info->vendor)) && (x86_info->extended_mask & (1 << CPUID_EXTENDED_5_MASK)))
{
int kilo_size = 0;
__cpuid(0x80000000 | CPUID_EXTENDED_5_MASK, eax, ebx, ecx, edx);
kilo_size = (ecx >> 24) & 0xFF;
if (kilo_size)
{
snprintf(amd_l1d_cache, sizeof(amd_l1d_cache), "%dK", kilo_size);
x86_info->l1d_cache = amd_l1d_cache;
}
kilo_size = (edx >> 24) & 0xFF;
if (kilo_size)
{
snprintf(amd_l1i_cache, sizeof(amd_l1i_cache), "%dK", kilo_size);
x86_info->l1i_cache = amd_l1i_cache;
}
}
if ((is_amd_cpu(x86_info->vendor)) && (x86_info->extended_mask & (1 << CPUID_EXTENDED_6_MASK)))
{
int kilo_size = 0, mega_size = 0;
__cpuid(0x80000000 | CPUID_EXTENDED_6_MASK, eax, ebx, ecx, edx);
kilo_size = (ecx >> 16) & 0xFFFF;
if (kilo_size)
{
snprintf(amd_l2_cache, sizeof(amd_l2_cache), "%dK", kilo_size);
x86_info->l2_cache = amd_l2_cache;
}
kilo_size = ((edx >> 18) & 0x3FFF) * 512;
if (kilo_size)
{
mega_size = kilo_size / 1024;
if (mega_size)
{
snprintf(amd_l3_cache, sizeof(amd_l3_cache), "%dM", mega_size);
}
else
{
snprintf(amd_l3_cache, sizeof(amd_l3_cache), "%dK", kilo_size);
}
x86_info->l3_cache = amd_l3_cache;
}
}
if (is_amd_cpu(x86_info->vendor))
{
/* AMD doesn't support Hyper-Threading */
x86_info->threads_per_core = 1;
x86_info->cores_per_socket = 1;
if (x86_info->extended_mask & (1 << CPUID_EXTENDED_8_MASK))
{
__cpuid(0x80000000 | CPUID_EXTENDED_8_MASK, eax, ebx, ecx, edx);
x86_info->cores_per_socket = (ecx & 0xFF) + 1;
}
}
/* Remove last space */
if (flag_len && (x86_info->flags[flag_len - 1] == ' '))
{
x86_info->flags[flag_len - 1] = '\0';
}
return;
}
#endif
static void usage(void)
{
fprintf(stderr, "usage: lscpu [-h|--help]\n");
exit(1);
}
static void print_cpu_info(gen_cpu_info *gen_info, x86_cpu_info *x86_info)
{
printf("%-24s %s\n", "Architecture:", gen_info->arch);
printf("%-24s %s\n", "Byte Order:", gen_info->byte_order == 1234 ? "Little Endian" : "Big Endian");
#ifdef __OpenBSD__
printf("%-24s %d\n", "Active CPU(s):", gen_info->active_cpu_num);
printf("%-24s %d\n", "Total CPU(s):", gen_info->total_cpu_num);
#else /* Other BSDs */
printf("%-24s %d\n", "Total CPU(s):", gen_info->active_cpu_num);
#endif
#if defined(__amd64__) || defined(__i386__)
if (x86_info->threads_per_core)
{
printf("%-24s %d\n", "Thread(s) per core:", x86_info->threads_per_core);
}
if (x86_info->cores_per_socket)
{
printf("%-24s %d\n", "Core(s) per socket:", x86_info->cores_per_socket);
}
if ((x86_info->threads_per_core) && (x86_info->cores_per_socket))
{
#ifdef __OpenBSD__
int total_cpu_num = gen_info->total_cpu_num;
#else /* Other BSDs */
int total_cpu_num = gen_info->active_cpu_num;
#endif
printf("%-24s %d\n", "Socket(s):", total_cpu_num / ((x86_info->threads_per_core) * (x86_info->cores_per_socket)));
}
if (x86_cpu_support_standard_flag(x86_info->standard_mask, CPUID_STANDARD_0_MASK))
{
printf("%-24s %s\n", "Vendor:", x86_info->vendor);
}
else
{
#ifdef __OpenBSD__
printf("%-24s %s\n", "Vendor:", gen_info->vendor);
#endif
}
if (x86_cpu_support_standard_flag(x86_info->standard_mask, CPUID_STANDARD_1_MASK))
{
printf("%-24s %d\n", "CPU family:", x86_info->family);
printf("%-24s %d\n", "Model:", x86_info->model);
}
printf("%-24s %s\n", "Model name:", gen_info->model);
if (x86_cpu_support_standard_flag(x86_info->standard_mask, CPUID_STANDARD_1_MASK))
{
printf("%-24s %d\n", "Stepping:", x86_info->stepping);
}
#ifdef __OpenBSD__
printf("%-24s %d\n", "CPU MHz:", gen_info->speed);
#endif
if (x86_info->l1d_cache)
{
printf("%-24s %s\n", "L1d cache:", x86_info->l1d_cache);
}
if (x86_info->l1i_cache)
{
printf("%-24s %s\n", "L1i cache:", x86_info->l1i_cache);
}
if (x86_info->l2_cache)
{
printf("%-24s %s\n", "L2 cache:", x86_info->l2_cache);
}
if (x86_info->l3_cache)
{
printf("%-24s %s\n", "L3 cache:", x86_info->l3_cache);
}
if (x86_info->flags[0])
{
printf("%-24s %s\n", "Flags:", x86_info->flags);
}
#else /* Other architectures */
printf("%-24s %s\n", "Model name:", gen_info->model);
#ifdef __OpenBSD__
printf("%-24s %d\n", "CPU MHz:", gen_info->speed);
#endif
#endif
return;
}
int main(int argc, char **argv)
{
int mib[2], ch = 0, i = 0;
struct option longopts[] = {
{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}
};
sysctl_get_cpu_info sysctl_array[] = {
{HW_MACHINE, gen_info.arch, sizeof(gen_info.arch), "HW_MACHINE"},
{HW_BYTEORDER, &(gen_info.byte_order), sizeof(gen_info.byte_order), "HW_BYTEORDER"},
{HW_MODEL, gen_info.model, sizeof(gen_info.model), "HW_MODEL"},
{HW_NCPU, &(gen_info.active_cpu_num), sizeof(gen_info.active_cpu_num), "HW_NCPU"},
#ifdef __OpenBSD__
{HW_VENDOR, gen_info.vendor, sizeof(gen_info.vendor), "HW_VENDOR"},
{HW_NCPUFOUND, &(gen_info.total_cpu_num), sizeof(gen_info.total_cpu_num), "HW_NCPUFOUND"},
{HW_CPUSPEED, &(gen_info.speed), sizeof(gen_info.speed), "HW_CPUSPEED"},
#endif
};
while ((ch = getopt_long(argc, argv, "h", longopts, NULL)) != -1)
{
switch (ch)
{
case 'h':
case '?':
default:
{
usage();
}
}
}
argc -= optind;
argv += optind;
if (argc)
{
usage();
}
for (i = 0; i < ARRAY_LEN(sysctl_array); i++)
{
mib[0] = CTL_HW;
mib[1] = sysctl_array[i].mib_code;
if (sysctl(mib, ARRAY_LEN(mib), sysctl_array[i].old, &sysctl_array[i].old_len, NULL, 0) == -1)
{
if (errno == EOPNOTSUPP)
{
continue;
}
err(1, "%s", sysctl_array[i].err_msg);
}
}
#if defined(__amd64__) || defined(__i386__)
get_x86_cpu_info(&x86_info);
#endif
print_cpu_info(&gen_info, &x86_info);
return 0;
}