cmd/go: add tracing support
cmd/go part of tracing functionality:
https://docs.google.com/document/u/1/d/1FP5apqzBgr7ahCCgFO-yoVhk4YZrNIDNf9RybngBc14/pub
Full change:
https://codereview.appspot.com/146920043
Change-Id: If346e11b8029c475b01fbf7172ce1c88171fb1b2
Reviewed-on: https://go-review.googlesource.com/1460
Reviewed-by: Russ Cox <rsc@golang.org>
diff --git a/src/cmd/go/doc.go b/src/cmd/go/doc.go
index d0d8a8a..fac6ba8 100644
--- a/src/cmd/go/doc.go
+++ b/src/cmd/go/doc.go
@@ -1059,6 +1059,10 @@
-timeout t
If a test runs longer than t, panic.
+ -trace trace.out
+ Write an execution trace to the specified file before exiting.
+ Writes test binary as -c would.
+
-v
Verbose output: log all tests as they are run. Also print all
text from Log and Logf calls even if the test succeeds.
diff --git a/src/cmd/go/test.go b/src/cmd/go/test.go
index c81e406..60f6b16 100644
--- a/src/cmd/go/test.go
+++ b/src/cmd/go/test.go
@@ -206,6 +206,10 @@
-timeout t
If a test runs longer than t, panic.
+ -trace trace.out
+ Write an execution trace to the specified file before exiting.
+ Writes test binary as -c would.
+
-v
Verbose output: log all tests as they are run. Also print all
text from Log and Logf calls even if the test succeeds.
diff --git a/src/cmd/go/testflag.go b/src/cmd/go/testflag.go
index 6da74b9..4d73370 100644
--- a/src/cmd/go/testflag.go
+++ b/src/cmd/go/testflag.go
@@ -42,6 +42,7 @@
-run="": passes -test.run to test
-short=false: passes -test.short to test
-timeout=0: passes -test.timeout to test
+ -trace="": passes -test.trace to test
-v=false: passes -test.v to test
`
@@ -103,6 +104,7 @@
{name: "run", passToTest: true},
{name: "short", boolVar: new(bool), passToTest: true},
{name: "timeout", passToTest: true},
+ {name: "trace", passToTest: true},
{name: "v", boolVar: &testV, passToTest: true},
}
@@ -192,7 +194,7 @@
testBench = true
case "timeout":
testTimeout = value
- case "blockprofile", "cpuprofile", "memprofile":
+ case "blockprofile", "cpuprofile", "memprofile", "trace":
testProfile = true
testNeedBinary = true
case "coverpkg":
