Adding upstream version 1.22.1.upstream/1.22.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/src/runtime/pprof/proto_darwin.go b/src/runtime/pprof/proto_darwin.go
new file mode 100644
index 0000000..8db9e1d
--- /dev/null
+++ b/src/runtime/pprof/proto_darwin.go
@@ -0,0 +1,36 @@
+// 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 pprof
+
+import (
+	"errors"
+)
+
+// readMapping adds a mapping entry for the text region of the running process.
+// It uses the mach_vm_region region system call to add mapping entries for the
+// text region of the running process. Note that currently no attempt is
+// made to obtain the buildID information.
+func (b *profileBuilder) readMapping() {
+	if !machVMInfo(b.addMapping) {
+		b.addMappingEntry(0, 0, 0, "", "", true)
+	}
+}
+
+func readMainModuleMapping() (start, end uint64, exe, buildID string, err error) {
+	first := true
+	ok := machVMInfo(func(lo, hi, off uint64, file, build string) {
+		if first {
+			start, end = lo, hi
+			exe, buildID = file, build
+		}
+		// May see multiple text segments if rosetta is used for running
+		// the go toolchain itself.
+		first = false
+	})
+	if !ok {
+		return 0, 0, "", "", errors.New("machVMInfo failed")
+	}
+	return start, end, exe, buildID, nil
+}