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internal/trace: support parsing of 1.5 traces

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1. Parse out version from trace header.
2. Restore handling of 1.5 traces.
3. Restore optional symbolization of traces.
4. Add some canned 1.5 traces for regression testing
   (http benchmark trace, runtime/trace stress traces,
    plus one with broken timestamps).

Change-Id: Idb18a001d03ded8e13c2730eeeb37c5836e31256
Reviewed-on: https://go-review.googlesource.com/21803
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Dmitry Vyukov 2016-04-11 08:57:52 +02:00
parent b04e145248
commit 3fafe2e888
10 changed files with 295 additions and 92 deletions
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2
src/cmd/trace/main.go
View file

@ -99,7 +99,7 @@ func parseEvents() ([]*trace.Event, error) {
defer tracef.Close()
// Parse and symbolize.
events, err := trace.Parse(bufio.NewReader(tracef))
events, err := trace.Parse(bufio.NewReader(tracef), programBinary)
if err != nil {
loader.err = fmt.Errorf("failed to parse trace: %v", err)
return