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Unified Diff: debug/dwarf/testdata/pcsptest.go

Issue 107630043: code review 107630043: ogle/dwarf/debug: add PCToSPOffset (Closed)
Patch Set: diff -r 5ff4bcb86e53 https://code.google.com/p/ogle Created 9 years, 8 months ago
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Index: debug/dwarf/testdata/pcsptest.go
===================================================================
new file mode 100644
--- /dev/null
+++ b/debug/dwarf/testdata/pcsptest.go
@@ -0,0 +1,29 @@
+// Copyright 2014 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
+
+import "fmt"
+
+func main() {
+ test(1, 2, 3)
+}
+
+// This is the function we examine. After the preamble its stack should be
+// pulled down 1*addrSize for the return PC plus 3*8 for the three
+// arguments. That will be (1+3)*8=32 on 64-bit machines.
+func test(a, b, c int64) int64 {
+ // Put in enough code that it's not inlined.
+ for a = 0; a < 100; a++ {
+ b += c
+ }
+ afterTest(a, b, c)
+ return b
+}
+
+// This function follows test in the binary. We use it to force arguments
+// onto the stack and as a delimiter in the text we scan in the test.
+func afterTest(a, b, c int64) {
+ fmt.Println(a, b, c)
+}
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