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| author | Björn Gustavsson <bjorn@erlang.org> | 2020-02-18 06:26:33 +0100 |
|---|---|---|
| committer | Björn Gustavsson <bjorn@erlang.org> | 2020-02-21 10:16:21 +0100 |
| commit | 38df9be8e5fabf9de15524fe176696b7e3bbeac7 (patch) | |
| tree | 04d854ba115edc3cd9c0adf424d2f3b9aec90353 /erts/emulator/beam/bif.c | |
| parent | 468b9a20b7f9d9585df750987b52e9e8f942f0ff (diff) | |
| download | erlang-38df9be8e5fabf9de15524fe176696b7e3bbeac7.tar.gz | |
Don't keep stacktraces forever
The `erlang:get_stacktrace/0` BIF retrieves the stacktrace from
the previous error in the process. The problem is that the very
existence of `erlang:get_stacktrace/0` means that the stacktrace
and potentially function arguments must be kept indefinitely.
Therefore, in OTP 21, the `erlang:get_stacktrace/0` BIF was deprecated
and the syntax of try/catch extended to allow matching out the
stacktrace directly.
This commit changes `erlang:get_stacktrace/0` for OTP 23 to always
return an empty list (`[]`) and eliminates the need to keep the
stacktrace forever.
`erlang:get_stacktrace/0` is scheduled for removal in OTP 24.
Diffstat (limited to 'erts/emulator/beam/bif.c')
| -rw-r--r-- | erts/emulator/beam/bif.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index 220b24128c..c472c4fadc 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -1006,8 +1006,7 @@ BIF_RETTYPE hibernate_3(BIF_ALIST_3) BIF_RETTYPE get_stacktrace_0(BIF_ALIST_0) { - Eterm t = build_stacktrace(BIF_P, BIF_P->ftrace); - BIF_RET(t); + BIF_RET(NIL); } /**********************************************************************/ |