blob: 90cc80f750218b3e695e374bebc9e07893d819ad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/usr/trace/tracebuffer.H $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2011
//
// p1
//
// Object Code Only (OCO) source materials
// Licensed Internal Code Source Materials
// IBM HostBoot Licensed Internal Code
//
// The source code for this program is not published or other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
#ifndef __TRACE_TRACEBUFFER_H
#define __TRACE_TRACEBUFFER_H
#include <stdint.h>
#include <stdlib.h>
#include <new>
#include <limits.h>
#include <sys/task.h>
struct traceEntry
{
uint64_t component;
tid_t tid;
uint16_t length;
uint32_t hash;
uint64_t timestamp;
uint32_t line;
uint64_t values[0];
};
class TracePage
{
public:
TracePage() : next(NULL), size(0) {};
TracePage* setNext(TracePage*);
TracePage* getNext() { return next; };
traceEntry* claimEntry(size_t size);
private:
TracePage* volatile next;
uint64_t size;
};
class TraceBuffer
{
public:
TraceBuffer()
{
first = last = new (malloc(PAGE_SIZE)) TracePage();
}
traceEntry* claimEntry(size_t size);
private:
TracePage* first;
TracePage* volatile last;
};
#endif
|
