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authorSverker Eriksson <[email protected]>2015-09-01 19:53:40 +0200
committerSverker Eriksson <[email protected]>2015-09-01 20:01:30 +0200
commita22b5ba19193e3f39129fadd20d375f6cc3f8529 (patch)
tree98c67cd1faf69ddf19e1c3f76f536b09aebb553a /erts/emulator/beam/erl_debug.c
parent99d3e9c5b2569169d2f5fefd67898d2533e5a83d (diff)
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erts: Fix bug when tracing with 'process_dump'
If the process stack contained a match state the print function would crash the vm as it was not recognized by tag_val_def(). Add new MATCHSTATE_DEF returned by tag_val_def(). All other callers either ignore it or has a default clause to handle invalid terms.
Diffstat (limited to 'erts/emulator/beam/erl_debug.c')
-rw-r--r--erts/emulator/beam/erl_debug.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_debug.c b/erts/emulator/beam/erl_debug.c
index 50bdc79506..b6c131a43e 100644
--- a/erts/emulator/beam/erl_debug.c
+++ b/erts/emulator/beam/erl_debug.c
@@ -188,6 +188,9 @@ pdisplay1(int to, void *to_arg, Process* p, Eterm obj)
case BINARY_DEF:
erts_print(to, to_arg, "#Bin");
break;
+ case MATCHSTATE_DEF:
+ erts_print(to, to_arg, "#Matchstate");
+ break;
default:
erts_print(to, to_arg, "unknown object %x", obj);
}