+int add_counter(unsigned int msr_num, char *name, unsigned int width,
+ enum counter_scope scope, enum counter_type type,
+ enum counter_format format)
+{
+ struct msr_counter *msrp;
+
+ msrp = calloc(1, sizeof(struct msr_counter));
+ if (msrp == NULL) {
+ perror("calloc");
+ exit(1);
+ }
+
+ msrp->msr_num = msr_num;
+ strncpy(msrp->name, name, NAME_BYTES);
+ msrp->width = width;
+ msrp->type = type;
+ msrp->format = format;
+
+ switch (scope) {
+
+ case SCOPE_CPU:
+ sys.thread_counter_bytes += 64;
+ msrp->next = sys.tp;
+ sys.tp = msrp;
+ sys.thread_counter_bytes += sizeof(unsigned long long);
+ break;
+
+ case SCOPE_CORE:
+ sys.core_counter_bytes += 64;
+ msrp->next = sys.cp;
+ sys.cp = msrp;
+ sys.core_counter_bytes += sizeof(unsigned long long);
+ break;
+
+ case SCOPE_PACKAGE:
+ sys.package_counter_bytes += 64;
+ msrp->next = sys.pp;
+ sys.pp = msrp;
+ sys.package_counter_bytes += sizeof(unsigned long long);
+ break;
+ }
+
+ return 0;
+}
+
+void parse_add_command(char *add_command)
+{
+ int msr_num = 0;
+ char name_buffer[NAME_BYTES];
+ int width = 64;
+ int fail = 0;
+ enum counter_scope scope = SCOPE_CPU;
+ enum counter_type type = COUNTER_CYCLES;
+ enum counter_format format = FORMAT_DELTA;
+
+ while (add_command) {
+
+ if (sscanf(add_command, "msr0x%x", &msr_num) == 1)
+ goto next;
+
+ if (sscanf(add_command, "msr%d", &msr_num) == 1)
+ goto next;
+
+ if (sscanf(add_command, "u%d", &width) == 1) {
+ if ((width == 32) || (width == 64))
+ goto next;
+ width = 64;
+ }
+ if (!strncmp(add_command, "cpu", strlen("cpu"))) {
+ scope = SCOPE_CPU;
+ goto next;
+ }
+ if (!strncmp(add_command, "core", strlen("core"))) {
+ scope = SCOPE_CORE;
+ goto next;
+ }
+ if (!strncmp(add_command, "package", strlen("package"))) {
+ scope = SCOPE_PACKAGE;
+ goto next;
+ }
+ if (!strncmp(add_command, "cycles", strlen("cycles"))) {
+ type = COUNTER_CYCLES;
+ goto next;
+ }
+ if (!strncmp(add_command, "seconds", strlen("seconds"))) {
+ type = COUNTER_SECONDS;
+ goto next;
+ }
+ if (!strncmp(add_command, "raw", strlen("raw"))) {
+ format = FORMAT_RAW;
+ goto next;
+ }
+ if (!strncmp(add_command, "delta", strlen("delta"))) {
+ format = FORMAT_DELTA;
+ goto next;
+ }
+ if (!strncmp(add_command, "percent", strlen("percent"))) {
+ format = FORMAT_PERCENT;
+ goto next;
+ }
+
+ if (sscanf(add_command, "%18s,%*s", name_buffer) == 1) { /* 18 < NAME_BYTES */
+ char *eos;
+
+ eos = strchr(name_buffer, ',');
+ if (eos)
+ *eos = '\0';
+ goto next;
+ }
+
+next:
+ add_command = strchr(add_command, ',');
+ if (add_command)
+ add_command++;
+
+ }
+ if (msr_num == 0) {
+ fprintf(stderr, "--add: (msrDDD | msr0xXXX) required\n");
+ fail++;
+ }
+
+ /* generate default column header */
+ if (*name_buffer == '\0') {
+ if (format == FORMAT_RAW) {
+ if (width == 32)
+ sprintf(name_buffer, "msr%d", msr_num);
+ else
+ sprintf(name_buffer, "MSR%d", msr_num);
+ } else if (format == FORMAT_DELTA) {
+ if (width == 32)
+ sprintf(name_buffer, "cnt%d", msr_num);
+ else
+ sprintf(name_buffer, "CNT%d", msr_num);
+ } else if (format == FORMAT_PERCENT) {
+ if (width == 32)
+ sprintf(name_buffer, "msr%d%%", msr_num);
+ else
+ sprintf(name_buffer, "MSR%d%%", msr_num);
+ }
+ }
+
+ if (add_counter(msr_num, name_buffer, width, scope, type, format))
+ fail++;
+
+ if (fail) {
+ help();
+ exit(1);
+ }
+}