Add technology_node field to struct cpu_id_t

Author: TheTumultuousUnicornOfDarkness

cpuid_tool/cpuid_tool.c

@@ -100,6 +100,7 @@ typedef enum {
 	NEED_L3_INSTANCES,
 	NEED_L4_INSTANCES,
 	NEED_CODENAME,
+	NEED_TECHNOLOGY,
 	NEED_FEATURES,
 	NEED_CLOCK,
 	NEED_CLOCK_OS,
@@ -174,6 +175,7 @@ matchtable[] = {
 	{ NEED_L3_INSTANCES , "--l3-instances" , 1},
 	{ NEED_L4_INSTANCES , "--l4-instances" , 1},
 	{ NEED_CODENAME     , "--codename"     , 1},
+	{ NEED_TECHNOLOGY   , "--technology"   , 1},
 	{ NEED_FEATURES     , "--flags"        , 1},
 	{ NEED_CLOCK        , "--clock"        , 0},
 	{ NEED_CLOCK_OS     , "--clock-os"     , 0},
@@ -507,6 +509,9 @@ static void print_info(output_data_switch query, struct cpu_id_t* data)
 		case NEED_CODENAME:
 			fprintf(fout, "%s\n", data->cpu_codename);
 			break;
+			case NEED_TECHNOLOGY:
+			fprintf(fout, "%s\n", data->technology_node);
+			break;
 		case NEED_FEATURES:
 		{
 			for (i = 0; i < NUM_CPU_FEATURES; i++)
@@ -828,6 +833,7 @@ int main(int argc, char** argv)
 					fprintf(fout, "  SSE units  : %d bits (%s)\n", data.cpu_types[cpu_type_index].x86.sse_size, data.cpu_types[cpu_type_index].detection_hints[CPU_HINT_SSE_SIZE_AUTH] ? "authoritative" : "non-authoritative");
 				}
 				fprintf(fout, "  code name  : `%s'\n", data.cpu_types[cpu_type_index].cpu_codename);
+				fprintf(fout, "  technology : `%s'\n", data.cpu_types[cpu_type_index].technology_node);
 				fprintf(fout, "  features   :");
 				/*
 				* Here we enumerate all CPU feature bits, and when a feature

libcpuid/libcpuid.h

@@ -755,6 +755,9 @@ struct cpu_id_t {
 
 	/** processor type purpose, relevant in case of hybrid CPU (e.g. PURPOSE_PERFORMANCE) */
 	cpu_purpose_t purpose;
+
+	/** contains the technology node string, e.g. "32 nm" */
+	char technology_node[TECHNOLOGY_STR_MAX];
 };
 
 /**

libcpuid/libcpuid_constants.h

@@ -35,6 +35,7 @@
 #define VENDOR_STR_MAX		16
 #define BRAND_STR_MAX		64
 #define CODENAME_STR_MAX	64
+#define TECHNOLOGY_STR_MAX	16
 #define CPU_FLAGS_MAX		384
 #define MAX_CPUID_LEVEL		32
 #define MAX_EXT_CPUID_LEVEL	32
@@ -60,6 +61,7 @@
 #define SGX_FLAGS_MAX		14
 #define ADDRESS_EXT_CPUID_START	0x80000000
 #define ADDRESS_EXT_CPUID_END	ADDRESS_EXT_CPUID_START + MAX_EXT_CPUID_LEVEL
+#define UNKN_STR "unknown"
 
 typedef enum {
 	EAX,

libcpuid/libcpuid_util.c

@@ -136,7 +136,8 @@ int match_cpu_codename(const struct match_entry_t* matchtable, int count, struct
 			bestindex = i;
 		}
 	}
-	strncpy(data->cpu_codename, matchtable[bestindex].name, CODENAME_STR_MAX);
+	strncpy(data->cpu_codename,    matchtable[bestindex].name,       CODENAME_STR_MAX);
+	strncpy(data->technology_node, matchtable[bestindex].technology, TECHNOLOGY_STR_MAX);
 	return bestscore;
 }
 

libcpuid/libcpuid_util.h

@@ -48,6 +48,7 @@ struct match_entry_t {
 		int score;
 	} brand;
 	char name[CODENAME_STR_MAX];
+	char technology[TECHNOLOGY_STR_MAX];
 };
 
 // returns the match score: