gem5
v22.0.0.0
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cpu
profile.hh
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2005 The Regents of The University of Michigan
3
* All rights reserved.
4
*
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions are
7
* met: redistributions of source code must retain the above copyright
8
* notice, this list of conditions and the following disclaimer;
9
* redistributions in binary form must reproduce the above copyright
10
* notice, this list of conditions and the following disclaimer in the
11
* documentation and/or other materials provided with the distribution;
12
* neither the name of the copyright holders nor the names of its
13
* contributors may be used to endorse or promote products derived from
14
* this software without specific prior written permission.
15
*
16
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
*/
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29
#ifndef __CPU_PROFILE_HH__
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#define __CPU_PROFILE_HH__
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#include <map>
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#include <string>
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35
#include "
base/logging.hh
"
36
#include "
base/types.hh
"
37
#include "
cpu/static_inst.hh
"
38
#include "debug/Stack.hh"
39
40
namespace
gem5
41
{
42
43
class
ThreadContext;
44
class
FunctionProfile;
45
46
GEM5_DEPRECATED_NAMESPACE
(Loader, loader);
47
namespace
loader
48
{
49
class
SymbolTable;
50
}
// namespace loader
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52
class
BaseStackTrace
53
{
54
private
:
55
void
dump
();
56
57
protected
:
58
ThreadContext
*
tc
=
nullptr
;
59
std::vector<Addr>
stack
;
60
61
// Subclasses should implement this function so that it collects the
62
// the current and return addresses on the stack in the "stack" vector.
63
virtual
void
trace
(
ThreadContext
*
tc
,
bool
is_call) = 0;
64
65
public
:
66
BaseStackTrace
() :
stack
(64) {}
67
virtual
~BaseStackTrace
() {}
68
69
void
70
clear
()
71
{
72
tc
=
nullptr
;
73
stack
.clear();
74
}
75
76
bool
valid
()
const
{
return
tc
; }
77
78
bool
79
trace
(
ThreadContext
*
tc
,
const
StaticInstPtr
&inst)
80
{
81
if
(!inst->
isCall
() && !inst->
isReturn
())
82
return
false
;
83
84
if
(
valid
())
85
clear
();
86
87
trace
(
tc
, !inst->
isReturn
());
88
return
true
;
89
}
90
91
const
std::vector<Addr>
&
getstack
()
const
{
return
stack
; }
92
93
void
dprintf
() {
if
(debug::Stack)
dump
(); }
94
95
// This function can be overridden so that special addresses which don't
96
// actually refer to PCs can be translated into special names. For
97
// instance, the address 1 could translate into "user" for user level
98
// code when the symbol table only has kernel symbols.
99
//
100
// It should return whether addr was recognized and symbol has been set to
101
// something.
102
virtual
bool
tryGetSymbol
(std::string &symbol,
Addr
addr
,
103
const
loader::SymbolTable
*symtab);
104
105
void
106
getSymbol
(std::string &symbol,
Addr
addr
,
107
const
loader::SymbolTable
*symtab)
108
{
109
panic_if
(!
tryGetSymbol
(symbol,
addr
, symtab),
110
"Could not find symbol for address %#x\n"
,
addr
);
111
}
112
};
113
114
class
ProfileNode
115
{
116
private
:
117
friend
class
FunctionProfile
;
118
119
typedef
std::map<Addr, ProfileNode *>
ChildList
;
120
ChildList
children
;
121
122
public
:
123
Counter
count
= 0;
124
125
public
:
126
void
dump
(
const
std::string &symbol, uint64_t
id
,
127
const
FunctionProfile
&prof, std::ostream &
os
)
const
;
128
void
clear
();
129
};
130
131
class
FunctionProfile
132
{
133
private
:
134
friend
class
ProfileNode
;
135
136
const
loader::SymbolTable
&
symtab
;
137
ProfileNode
top
;
138
std::map<Addr, Counter>
pc_count
;
139
std::unique_ptr<BaseStackTrace>
trace
;
140
141
public
:
142
FunctionProfile
(std::unique_ptr<BaseStackTrace> _trace,
143
const
loader::SymbolTable
&
symtab
);
144
145
ProfileNode
*
consume
(
ThreadContext
*tc,
const
StaticInstPtr
&inst);
146
ProfileNode
*
consume
(
const
std::vector<Addr>
&
stack
);
147
void
clear
();
148
void
dump
(std::ostream &out)
const
;
149
void
sample
(
ProfileNode
*node,
Addr
pc
);
150
};
151
152
inline
ProfileNode
*
153
FunctionProfile::consume
(
ThreadContext
*tc,
const
StaticInstPtr
&inst)
154
{
155
if
(!
trace
->trace(tc, inst))
156
return
nullptr
;
157
trace
->dprintf();
158
return
consume
(
trace
->getstack());
159
}
160
161
}
// namespace gem5
162
163
#endif // __CPU_PROFILE_HH__
gem5::BaseStackTrace::getstack
const std::vector< Addr > & getstack() const
Definition:
profile.hh:91
gem5::FunctionProfile::clear
void clear()
Definition:
profile.cc:122
gem5::BaseStackTrace::stack
std::vector< Addr > stack
Definition:
profile.hh:59
gem5::ProfileNode::dump
void dump(const std::string &symbol, uint64_t id, const FunctionProfile &prof, std::ostream &os) const
Definition:
profile.cc:71
gem5::FunctionProfile::sample
void sample(ProfileNode *node, Addr pc)
Definition:
profile.cc:148
gem5::FunctionProfile
Definition:
profile.hh:131
gem5::loader::SymbolTable
Definition:
symtab.hh:65
gem5::FunctionProfile::pc_count
std::map< Addr, Counter > pc_count
Definition:
profile.hh:138
std::vector< Addr >
gem5::ProfileNode::clear
void clear()
Definition:
profile.cc:92
gem5::ProfileNode::count
Counter count
Definition:
profile.hh:123
gem5::FunctionProfile::top
ProfileNode top
Definition:
profile.hh:137
gem5::BaseStackTrace::clear
void clear()
Definition:
profile.hh:70
gem5::RefCountingPtr< StaticInst >
gem5::BaseStackTrace::valid
bool valid() const
Definition:
profile.hh:76
gem5::BaseStackTrace::tryGetSymbol
virtual bool tryGetSymbol(std::string &symbol, Addr addr, const loader::SymbolTable *symtab)
Definition:
profile.cc:60
gem5::StaticInst::isReturn
bool isReturn() const
Definition:
static_inst.hh:162
gem5::BaseStackTrace::~BaseStackTrace
virtual ~BaseStackTrace()
Definition:
profile.hh:67
gem5::ThreadContext
ThreadContext is the external interface to all thread state for anything outside of the CPU.
Definition:
thread_context.hh:94
gem5::X86ISA::stack
Bitfield< 17, 16 > stack
Definition:
misc.hh:587
gem5::ProfileNode
Definition:
profile.hh:114
static_inst.hh
gem5::Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition:
types.hh:147
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::FunctionProfile::dump
void dump(std::ostream &out) const
Definition:
profile.cc:129
panic_if
#define panic_if(cond,...)
Conditional panic macro that checks the supplied condition and only panics if the condition is true a...
Definition:
logging.hh:204
gem5::BaseStackTrace::trace
bool trace(ThreadContext *tc, const StaticInstPtr &inst)
Definition:
profile.hh:79
types.hh
gem5::X86ISA::os
Bitfield< 17 > os
Definition:
misc.hh:803
gem5::BaseStackTrace::tc
ThreadContext * tc
Definition:
profile.hh:58
gem5::MipsISA::pc
Bitfield< 4 > pc
Definition:
pra_constants.hh:243
gem5::statistics::Counter
double Counter
All counters are of 64-bit values.
Definition:
types.hh:47
logging.hh
gem5::StaticInst::isCall
bool isCall() const
Definition:
static_inst.hh:161
gem5::ProfileNode::children
ChildList children
Definition:
profile.hh:120
gem5::BaseStackTrace::trace
virtual void trace(ThreadContext *tc, bool is_call)=0
gem5::FunctionProfile::trace
std::unique_ptr< BaseStackTrace > trace
Definition:
profile.hh:139
gem5::ProfileNode::ChildList
std::map< Addr, ProfileNode * > ChildList
Definition:
profile.hh:119
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition:
gpu_translation_state.hh:37
gem5::BaseStackTrace
Definition:
profile.hh:52
gem5::BaseStackTrace::BaseStackTrace
BaseStackTrace()
Definition:
profile.hh:66
gem5::BaseStackTrace::dump
void dump()
Definition:
profile.cc:44
gem5::BaseStackTrace::dprintf
void dprintf()
Definition:
profile.hh:93
gem5::FunctionProfile::FunctionProfile
FunctionProfile(std::unique_ptr< BaseStackTrace > _trace, const loader::SymbolTable &symtab)
Definition:
profile.cc:99
gem5::FunctionProfile::consume
ProfileNode * consume(ThreadContext *tc, const StaticInstPtr &inst)
Definition:
profile.hh:153
gem5::BaseStackTrace::getSymbol
void getSymbol(std::string &symbol, Addr addr, const loader::SymbolTable *symtab)
Definition:
profile.hh:106
gem5::FunctionProfile::symtab
const loader::SymbolTable & symtab
Definition:
profile.hh:136
gem5::X86ISA::addr
Bitfield< 3 > addr
Definition:
types.hh:84
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