linux-kernel - Re: [PATCH 13/52] perf tools: Add perf_pmu__scan

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 22 Jul 2014 21:09:01 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Adrian Hunter <adrian.hunter@...el.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH 13/52] perf tools: Add perf_pmu__scan_file()

On Tue, Jul 22, 2014 at 04:17:22PM +0300, Adrian Hunter wrote:

SNIP

> +
> +static FILE *perf_pmu__open_file(struct perf_pmu *pmu, const char *name)
> +{
> +	struct stat st;
> +	char path[PATH_MAX];
> +	const char *sysfs;
> +
> +	sysfs = sysfs__mountpoint();
> +	if (!sysfs)
> +		return NULL;
> +
> +	snprintf(path, PATH_MAX,
> +		 "%s" EVENT_SOURCE_DEVICE_PATH "%s/%s", sysfs, pmu->name, name);
> +
> +	if (stat(path, &st) < 0)
> +		return NULL;
> +
> +	return fopen(path, "r");
> +}

looks like this function could be used in pmu_cpumask and pmu_type
and maybe others

jirka
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/