Messages in this thread | | | Subject | Re: [PATCH v3 6/8] perf/tools: Enhance JSON/metric infrastructure to handle "?" | From | kajoljain <> | Date | Fri, 6 Mar 2020 10:22:27 +0530 |
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On 3/2/20 8:38 PM, Jiri Olsa wrote: > On Sat, Feb 29, 2020 at 03:11:57PM +0530, Kajol Jain wrote: > > SNIP > >> #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ >> #define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ >> >> +#define SOCKETS_INFO_FILE_PATH "/devices/hv_24x7/interface/" >> + >> int >> get_cpuid(char *buffer, size_t sz) >> { >> @@ -44,3 +51,43 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused) >> >> return bufp; >> } >> + >> +int arch_get_runtimeparam(void) >> +{ >> + int count = 0; >> + DIR *dir; >> + char path[PATH_MAX]; >> + const char *sysfs = sysfs__mountpoint(); >> + char filename[] = "sockets"; >> + FILE *file; >> + char buf[16], *num; >> + int data; >> + >> + if (!sysfs) >> + goto out; >> + >> + snprintf(path, PATH_MAX, >> + "%s" SOCKETS_INFO_FILE_PATH, sysfs); >> + dir = opendir(path); >> + >> + if (!dir) >> + goto out; >> + >> + strcat(path, filename); >> + file = fopen(path, "r"); >> + >> + if (!file) >> + goto out; >> + >> + data = fread(buf, 1, sizeof(buf), file); >> + >> + if (data == 0) >> + goto out; >> + >> + count = strtol(buf, &num, 10); >> +out: >> + if (!count) >> + count = 1; >> + >> + return count; > > we have sysfs__read_ull for this >
Hi Jiri, Thanks for suggesting it. Will update.
Kajol
> jirka >
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