diff options
Diffstat (limited to 'libgo/go/runtime/pprof/pprof_test.go')
| -rw-r--r-- | libgo/go/runtime/pprof/pprof_test.go | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/libgo/go/runtime/pprof/pprof_test.go b/libgo/go/runtime/pprof/pprof_test.go index e933058e558..474011523e3 100644 --- a/libgo/go/runtime/pprof/pprof_test.go +++ b/libgo/go/runtime/pprof/pprof_test.go @@ -6,6 +6,7 @@ package pprof_test import ( "bytes" + "fmt" "hash/crc32" "os/exec" "runtime" @@ -49,19 +50,27 @@ func TestCPUProfile(t *testing.T) { // Convert []byte to []uintptr. bytes := prof.Bytes() + l := len(bytes) / int(unsafe.Sizeof(uintptr(0))) val := *(*[]uintptr)(unsafe.Pointer(&bytes)) - val = val[:len(bytes)/int(unsafe.Sizeof(uintptr(0)))] + val = val[:l] - if len(val) < 10 { + if l < 13 { t.Fatalf("profile too short: %#x", val) } - if val[0] != 0 || val[1] != 3 || val[2] != 0 || val[3] != 1e6/100 || val[4] != 0 { - t.Fatalf("unexpected header %#x", val[:5]) + + fmt.Println(val, l) + hd, val, tl := val[:5], val[5:l-3], val[l-3:] + fmt.Println(hd, val, tl) + if hd[0] != 0 || hd[1] != 3 || hd[2] != 0 || hd[3] != 1e6/100 || hd[4] != 0 { + t.Fatalf("unexpected header %#x", hd) + } + + if tl[0] != 0 || tl[1] != 1 || tl[2] != 0 { + t.Fatalf("malformed end-of-data marker %#x", tl) } // Check that profile is well formed and contains ChecksumIEEE. found := false - val = val[5:] for len(val) > 0 { if len(val) < 2 || val[0] < 1 || val[1] < 1 || uintptr(len(val)) < 2+val[1] { t.Fatalf("malformed profile. leftover: %#x", val) |