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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Call stack sample data for a given profiling session. | |
6 | |
7 syntax = "proto2"; | |
8 | |
9 option optimize_for = LITE_RUNTIME; | |
10 | |
11 package metrics; | |
12 | |
13 // Next tag: 5 | |
14 message CallStackProfile { | |
15 | |
Ilya Sherman
2015/03/17 04:54:35
nit: Please replace this newline with documentatio
Mike Wittman
2015/03/18 00:54:28
Done.
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16 message Sample { | |
17 // The callstack. Sample.entries[0] represents the call on the top of the | |
18 // stack. | |
19 repeated CallStackEntry entry = 1; | |
Ilya Sherman
2015/03/17 04:54:35
nit: Please leave a blank line after this one.
Mike Wittman
2015/03/18 00:54:27
Done.
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20 // Number of times this stack signature occurs. | |
21 optional int64 count = 2; | |
22 } | |
23 | |
24 // The callstack and counts. | |
25 repeated Sample sample = 1; | |
Ilya Sherman
2015/03/17 04:54:35
nit: Please leave a blank line here.
Mike Wittman
2015/03/18 00:54:27
Done.
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26 // List of module ids found in this sample. | |
27 repeated ModuleIdentifier module_id = 2; | |
28 | |
29 // Duration of this profile. | |
30 optional int32 profile_duration_ms = 3; | |
Ilya Sherman
2015/03/17 04:54:35
nit: Please leave a blank line here.
Mike Wittman
2015/03/18 00:54:28
Done.
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31 // Time between samples. | |
32 optional int32 sampling_period_ms = 4; | |
33 } | |
34 | |
35 // Describes an entry in the callstack. | |
36 message CallStackEntry { | |
37 // Instruction pointer subtracted by module base. | |
38 optional uint64 address = 1; | |
Ilya Sherman
2015/03/17 04:54:35
nit: Please leave a blank line here.
Mike Wittman
2015/03/18 00:54:28
Done.
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39 // Index to the module identifier in |module_ids| of CallStackProfile. | |
40 optional int32 module_id_index = 2; | |
41 } | |
Ilya Sherman
2015/03/17 04:54:35
Why are some of the messages declared as inner mes
Mike Wittman
2015/03/18 00:54:28
In the server-side review (cr/87065567) Sample was
Ilya Sherman
2015/03/19 00:10:19
That's fair, but it doesn't look like the reviewer
Ilya Sherman
2015/03/19 02:01:16
Bump.
Mike Wittman
2015/03/19 21:51:18
Sorry, this slipped my mind. Made the messages int
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42 | |
43 // Uniquely identifies a module. | |
44 message ModuleIdentifier { | |
45 // A hash that uniquely identifies a particular program version with high | |
46 // probability. This is parsed from headers of the loaded module. | |
47 // For binaries generated by GNU tools: | |
48 // Contents of the .note.gnu.build-id field. | |
49 // On Windows: | |
50 // GUID + AGE in the debug image headers of a module. | |
51 optional bytes build_id = 1; | |
Ilya Sherman
2015/03/17 04:54:35
nit: Please leave a blank line here.
Ilya Sherman
2015/03/17 04:54:35
"bytes" fields are generally discouraged, same as
Mike Wittman
2015/03/18 00:54:28
Done.
Mike Wittman
2015/03/18 00:54:28
Yes. This was addressed in the server-side review:
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52 // MD5Sum Prefix of the module name. This is the same hashing scheme as used | |
53 // to hash UMA histogram names. | |
54 optional fixed64 name_md5_prefix = 2; | |
55 } | |
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