On Mon, Aug 19, 2013 at 11:14 AM, Stephane Eranian <eran...@google.com> wrote:
> On Thu, Aug 15, 2013 at 12:26 PM, Peter Zijlstra <pet...@infradead.org> wrote:
>> On Tue, Aug 13, 2013 at 01:55:56PM +0200, Stephane Eranian wrote:
>>
>>> @@ -638,6 +639,25 @@ enum perf_event_type {
>>> */
>>> PERF_RECORD_SAMPLE = 9,
>>>
>>> + /*
>>> + * The MMAP2 records are an augmented version of MMAP, they add
>>> + * maj, min, ino numbers to be used to uniquely identify each mapping
>>> + *
>>> + * struct {
>>> + * struct perf_event_header header;
>>> + *
>>> + * u32 pid, tid;
>>> + * u64 addr;
>>> + * u64 len;
>>> + * u64 pgoff;
>>> + * u32 maj;
>>> + * u32 min;
>>> + * u64 ino;
>>> + * char filename[];
>>
>> Did you forget the sample_id stuff?
>>
>> struct sample_id sample_id;
>>
> Ok, will add that and the i_generation field.
Added that now, works fine. Except it won't be availa when synthesizing
MMAP records from /proc/PID/maps because it is not displayed there.
There is not much we can do about this. And of course, there is not i_generation
for kernel level ELF images.
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