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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /src/runtime/testdata/testprogcgo/trace.go | |
parent | Initial commit. (diff) | |
download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/runtime/testdata/testprogcgo/trace.go')
-rw-r--r-- | src/runtime/testdata/testprogcgo/trace.go | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprogcgo/trace.go b/src/runtime/testdata/testprogcgo/trace.go new file mode 100644 index 0000000..875434b --- /dev/null +++ b/src/runtime/testdata/testprogcgo/trace.go @@ -0,0 +1,60 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +/* +// Defined in trace_*.c. +void cCalledFromGo(void); +*/ +import "C" +import ( + "context" + "fmt" + "log" + "os" + "runtime/trace" +) + +func init() { + register("Trace", Trace) +} + +// Trace is used by TestTraceUnwindCGO. +func Trace() { + file, err := os.CreateTemp("", "testprogcgo_trace") + if err != nil { + log.Fatalf("failed to create temp file: %s", err) + } + defer file.Close() + + if err := trace.Start(file); err != nil { + log.Fatal(err) + } + defer trace.Stop() + + goCalledFromGo() + <-goCalledFromCThreadChan + + fmt.Printf("trace path:%s", file.Name()) +} + +// goCalledFromGo calls cCalledFromGo which calls back into goCalledFromC and +// goCalledFromCThread. +func goCalledFromGo() { + C.cCalledFromGo() +} + +//export goCalledFromC +func goCalledFromC() { + trace.Log(context.Background(), "goCalledFromC", "") +} + +var goCalledFromCThreadChan = make(chan struct{}) + +//export goCalledFromCThread +func goCalledFromCThread() { + trace.Log(context.Background(), "goCalledFromCThread", "") + close(goCalledFromCThreadChan) +} |