diff options
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/debug/stack.go | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/runtime/debug/stack.go b/src/runtime/debug/stack.go index 508afe1f97..7072d29c96 100644 --- a/src/runtime/debug/stack.go +++ b/src/runtime/debug/stack.go @@ -33,9 +33,11 @@ func Stack() []byte { // SetCrashOutput configures a single additional file where unhandled // panics and other fatal errors are printed, in addition to standard error. -// There is only one additional file: calling SetCrashOutput again -// overrides any earlier call; it does not close the previous file. -// SetCrashOutput(nil) disables the use of any additional file. +// There is only one additional file: calling SetCrashOutput again overrides +// any earlier call. +// SetCrashOutput duplicates f's file descriptor, so the caller may safely +// close f as soon as SetCrashOutput returns. +// To disable this additional crash output, call SetCrashOutput(nil). func SetCrashOutput(f *os.File) error { fd := ^uintptr(0) if f != nil { |