From 2f8d59aa9e8a96d094172db339fd94aae45a90b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A5kan=20Mattsson?=
Date: Wed, 2 Nov 2016 12:56:39 +0100
Subject: erts: Make depth of current_stacktrace configurable
The BIF process_info(Pid, current_stacktrace) truncates the
stacktrace. The old behavior was to truncate long stacktraces to max
8 items. And this was hard coded. Now it is truncated to the value of
system_flag(backtrace_depth) instead. The backtrace_depth defaults to
8, but is configurable.
---
erts/doc/src/erlang.xml | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'erts/doc')
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 9646953518..112682d713 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -4899,7 +4899,9 @@ RealSystem = system + MissedSystem
Returns the current call stack back-trace (stacktrace)
of the process. The stack has the same format as returned by
- erlang:get_stacktrace/0.
+ erlang:get_stacktrace/0. The depth of the
+ stacktrace is truncated according to the backtrace_depth
+ system flag setting.
{dictionary, Dictionary}
-
@@ -6611,7 +6613,9 @@ ok
Set system flag backtrace_depth.
Sets the maximum depth of call stack back-traces in the
- exit reason element of 'EXIT' tuples.
+ exit reason element of 'EXIT' tuples. The flag
+ also limits the stacktrace depth returned by process_info
+ item current_stacktrace.
Returns the old value of the flag.
--
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