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runtime: Fix GDB integration with Python 2

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A similar fix was applied in 545686857b
but another instance of 'pc' was missed.

Also adds a test for the goroutine gdb command.

It currently uses goroutine 2 for the test, since goroutine 1 has
its stack pointer set to 0 for some reason.

Change-Id: I53ca22be6952f03a862edbdebd9b5c292e0853ae
Reviewed-on: https://go-review.googlesource.com/8729
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Derek Buitenhuis 2015-04-10 15:13:04 -04:00 • committed by Ian Lance Taylor
parent 49a5a97eea
commit 53840ad6f1
2 changed files with 9 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/runtime/runtime-gdb.py
View file

@ -446,7 +446,7 @@ class GoroutineCmd(gdb.Command):
#python3 / newer versions of gdb
pc = int(pc)
except gdb.error:
pc = int(str(pc), 16)
pc = int(str(pc).split(None, 1)[0], 16)
save_frame = gdb.selected_frame()
gdb.parse_and_eval('$save_pc = $pc')
gdb.parse_and_eval('$save_sp = $sp')

8
src/runtime/runtime-gdb_test.go
View file

@ -80,6 +80,9 @@ func TestGdbPython(t *testing.T) {
"-ex", "echo BEGIN print ptrvar\n",
"-ex", "print ptrvar",
"-ex", "echo END\n",
"-ex", "echo BEGIN goroutine 2 bt\n",
"-ex", "goroutine 2 bt",
"-ex", "echo END\n",
filepath.Join(dir, "a.exe")).CombinedOutput()
firstLine := bytes.SplitN(got, []byte("\n"), 2)[0]
@ -112,4 +115,9 @@ func TestGdbPython(t *testing.T) {
if bl := blocks["print ptrvar"]; !strVarRe.MatchString(bl) {
t.Fatalf("print ptrvar failed: %s", bl)
}
btGoroutineRe := regexp.MustCompile(`^#0\s+runtime.+at`)
if bl := blocks["goroutine 2 bt"]; !btGoroutineRe.MatchString(bl) {
t.Fatalf("goroutine 2 bt failed: %s", bl)
}
}