Add loongarch support.

libsysinfo-0.3.0/Linux/Makefile

@@ -32,6 +32,9 @@ ifneq (,$(findstring mips,$(ARCH)))
    ARCH := mips
 endif
 
+ifneq (,$(findstring loongarch,$(ARCH)))
+   ARCH := loongarch
+endif
 
 all:	cpuinfo.o sysinfo_linux.o
 
@@ -55,6 +58,9 @@ frv:	cpuinfo_frv.c
 ia64:	cpuinfo_ia64.c
 	$(CROSS)$(CC) $(CFLAGS) -o cpuinfo.o -c cpuinfo_ia64.c
 
+loongarch:    cpuinfo_loongarch.c
+	$(CROSS)$(CC) $(CFLAGS) -o cpuinfo.o -c cpuinfo_loongarch.c
+
 m32r:	cpuinfo_m32r.c
 	$(CROSS)$(CC) $(CFLAGS) -o cpuinfo.o -c cpuinfo_m32r.c
 

libsysinfo-0.3.0/Linux/cpuinfo_loongarch.c

@@ -0,0 +1,69 @@
+/* Handles loongarch chips on Linux architecture  */
+/* by JiaLing Zhang <zhangjialing@loongson.cn>        */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>  /* atof */
+
+#include "../sysinfo.h"
+#include "../include/generic.h"
+
+int get_cpu_info(struct cpu_info_type *cpu_info) {
+
+	FILE *fff;
+	char temp_string[BUFSIZ];
+	char vendor_string[BUFSIZ],model_string[BUFSIZ];
+	int cpu_count=0;
+	float megahertz=0.0,bogomips=0.0;
+
+	vendor_string[0]=model_string[0]=0;
+
+	strncpy(vendor_string,"Loongson",9);
+
+	/* We get all of our info here from /proc/cpuinfo */
+	if ((fff=fopen(get_cpuinfo_file(),"r") )!=NULL) {
+
+		while ( (fgets(temp_string,BUFSIZ,fff)!=NULL) ) {
+
+			if (cpu_count==0) {
+
+				if ( !(strncmp(temp_string,"Model Name",10))) {
+					strncpy(model_string,parse_line(temp_string),BUFSIZ-1);
+					clip_lf(model_string,BUFSIZ);
+				}
+
+				if ( !(strncmp(temp_string,"CPU MHz",7))) {
+					megahertz=atof(parse_line(temp_string));
+				}
+			}
+
+			/* Ugh why must people play with capitalization */
+			if ( !(strncmp(temp_string,"bogomips",8)) ||
+					!(strncmp(temp_string,"BogoMips",8)) ||
+					!(strncmp(temp_string,"BogoMIPS",8))) {
+				bogomips+=atof(parse_line(temp_string));
+				cpu_count++;  /* Cheating way to detect number of CPUs */
+			}
+		}
+	}
+
+	strncpy_truncate(cpu_info->chip_vendor,vendor_string,SYSINFO_CHIP_VENDOR_SIZE);
+	strncpy_truncate(cpu_info->chip_type,model_string,SYSINFO_CHIP_TYPE_SIZE);
+
+	cpu_info->num_cpus=cpu_count;
+	cpu_info->megahertz=megahertz;
+	cpu_info->bogomips=bogomips;
+
+	return 0;
+}
+
+int get_hardware(char *hardware_string) {
+
+	return -1;
+}
+
+     /* Some architectures might have better ways of detecting RAM size */
+long long get_arch_specific_mem_size(void) {
+     /* We have no special way of detecting RAM */
+	return 0;
+}