diff options
| -rw-r--r-- | lib/runtime_tools/doc/src/dbg.xml | 4 | ||||
| -rw-r--r-- | lib/runtime_tools/src/dbg.erl | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/lib/runtime_tools/doc/src/dbg.xml b/lib/runtime_tools/doc/src/dbg.xml index 0e63649c09..df4cdf7cab 100644 --- a/lib/runtime_tools/doc/src/dbg.xml +++ b/lib/runtime_tools/doc/src/dbg.xml @@ -528,6 +528,10 @@ Error: fun containing local erlang function calls ('is_atomm' called in guard) c <p>Match specifications used can be saved in a file (if a read-write file system is present) for use in later debugging sessions, see <c>wtp/1</c> and <c>rtp/1</c></p> + <p>There are three built-in trace patterns: + <c>x</c>, <c>c</c> and <c>cx</c>. They represent an + exception trace, caller trace and a caller and exception trace + respectively.</p> </desc> </func> <func> diff --git a/lib/runtime_tools/src/dbg.erl b/lib/runtime_tools/src/dbg.erl index 56283f4d3d..446de63064 100644 --- a/lib/runtime_tools/src/dbg.erl +++ b/lib/runtime_tools/src/dbg.erl @@ -1449,6 +1449,19 @@ new_pattern_table() -> ets:insert(PT, {exception_trace, term_to_binary(x)}), + ets:insert(PT, + {c, + term_to_binary([{'_',[],[{message,{caller}}]}])}), + ets:insert(PT, + {caller_trace, + term_to_binary(c)}), + ets:insert(PT, + {cx, + term_to_binary([{'_',[],[{exception_trace}, + {message,{caller}}]}])}), + ets:insert(PT, + {caller_exception_trace, + term_to_binary(cx)}), PT. |