linux-kernel - Re: [PATCH 13/41] perf tools: Add machine__kernel

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]

Message-ID: <53E8B8D8.4040809@intel.com>
Date:	Mon, 11 Aug 2014 15:36:40 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Jiri Olsa <jolsa@...hat.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 13/41] perf tools: Add machine__kernel_ip()

On 08/11/2014 03:23 PM, Jiri Olsa wrote:
> On Wed, Jul 16, 2014 at 05:22:22PM +0300, Adrian Hunter wrote:
>> On 16/07/2014 5:15 p.m., Jiri Olsa wrote:
>>> On Mon, Jul 14, 2014 at 01:02:37PM +0300, Adrian Hunter wrote:
>>>
>>> SNIP
>>>
>>>> +
>>>> +int machine__get_kernel_start(struct machine *machine)
>>>> +{
>>>> +	struct map *map = machine__kernel_map(machine, MAP__FUNCTION);
>>>> +	int err = 0;
>>>> +
>>>> +	/*
>>>> +	 * The only addresses above 2^63 are kernel addresses of a 64-bit
>>>> +	 * kernel.  Note that addresses are unsigned so that on a 32-bit system
>>>> +	 * all addresses including kernel addresses are less than 2^32.  In
>>>> +	 * that case (32-bit system), if the kernel mapping is unknown, all
>>>> +	 * addresses will be assumed to be in user space - see
>>>> +	 * machine__kernel_ip().
>>>> +	 */
>>>> +	machine->kernel_start = 1ULL << 63;
>>>> +	if (map) {
>>>> +		err = map__load(map, machine->symbol_filter);
>>>> +		if (map->start)
>>>> +			machine->kernel_start = map->start;
>>>> +	}
>>>> +	return err;
>>>> +}
>>>
>>> we just recently got machine__get_kernel_start_addr function,
>>> I think we want just one function for this
>>
>> They do quite different things.
>>
> 
> so one of those two should have different name

Such as?

--
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/