Merge branch 'lukas/cerl_dump/OTP-11468' into maint

* lukas/cerl_dump/OTP-11468:
  erts: Add cerl -dump and dumping in z_SUITE

2 files changed, 53 insertions, 6 deletions

diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src
index 41baa323ed..38c6dd037f 100644
--- a/erts/etc/unix/cerl.src
+++ b/erts/etc/unix/cerl.src
@@ -33,6 +33,7 @@
 #               You have to start beam in gdb using "run".
 #   -rgdb       Run the debug compiled emulator in gdb.
 #               You have to start beam in gdb using "run".
+#   -dump       Dump the bt of all threads in a core.
 #   -break F    Run the debug compiled emulator in emacs and gdb and set break.
 #               The session is started, i.e. "run" is already don for you.
 #   -xxgdb      FIXME currently disabled
@@ -178,6 +179,12 @@ while [ $# -gt 0 ]; do
 	    cargs="$cargs -frmptr"
 	    TYPE=.frmptr
 	    ;;
+	"-dump")
+	    shift
+	    GDB=dump
+	    core="$1"
+	    shift
+	    ;;
 	"-gdb")
 	    shift
 	    GDB=egdb
@@ -331,7 +338,7 @@ elif [ "x$GDB" = "xgdb" ]; then
     echo "source $ROOTDIR/erts/etc/unix/etp-commands" > $cmdfile
     # Fire up gdb in emacs...
     exec gdb $GDBBP -x $cmdfile $gdbcmd
-else
+elif [ "x$GDB" = "xegdb" ]; then
     if [ "x$EMACS" = "x" ]; then
 	EMACS=emacs
     fi
@@ -372,4 +379,23 @@ else
             (comint-send-input)"
     # Fire up gdb in emacs...
     exec $EMACS --eval "(progn (gdb \"gdb $GDBARGS$EMU_NAME\") $gdbcmd)"
+elif [ "x$GDB" = "xdump" ]; then
+    cmdfile="/tmp/.cerlgdb.$$"
+    case "x$core" in
+	x/*)
+	    gdbcmd="$EMU_NAME ${core}"
+	    ;;
+	*)
+	    dir=`pwd`
+	    gdbcmd="$EMU_NAME ${dir}/${core}"
+	    ;;
+    esac
+    echo "set width 0
+set height 0
+set verbose off
+
+source $ROOTDIR/erts/etc/unix/etp-commands
+thread apply all bt
+" > $cmdfile
+    exec gdb --batch --command=$cmdfile $gdbcmd
 fi
diff --git a/erts/test/z_SUITE.erl b/erts/test/z_SUITE.erl
index ccf22a9b6b..da72b18f05 100644
--- a/erts/test/z_SUITE.erl
+++ b/erts/test/z_SUITE.erl
@@ -231,6 +231,20 @@ mod_time_list(F) ->
 str_strip(S) ->
     string:strip(string:strip(string:strip(S), both, $\n), both, $\r).
 
+dump_core(#core_search_conf{ cerl = false }, _) ->
+    ok;
+dump_core(_, {ignore, _Core}) ->
+    ok;
+dump_core(#core_search_conf{ cerl = Cerl }, Core) ->
+    Dump = case test_server:is_debug() of
+	       true ->
+		   os:cmd(Cerl ++ " -debug -dump " ++ Core);
+	       _ ->
+		   os:cmd(Cerl ++ " -dump " ++ Core)
+	   end,
+    ct:log("~s~n~n~s",[Core,Dump]).
+
+
 format_core(Conf, {ignore, Core}) ->
     format_core(Conf, Core, "[ignored] ");
 format_core(Conf, Core) ->
@@ -254,11 +268,16 @@ core_file_search(#core_search_conf{search_dir = Base,
 				   extra_search_dir = XBase,
 				   cerl = Cerl,
 				   run_by_ts = RunByTS} = Conf) ->
-    case Cerl of
-	false -> ok;
-	_ -> catch io:format("A cerl script that probably can be used for "
-			     "inspection of emulator cores:~n  ~s~n",
-			     [Cerl])
+    case {Cerl,test_server:is_debug()} of
+	{false,_} -> ok;
+	{_,true} ->
+	    catch io:format("A cerl script that probably can be used for "
+			    "inspection of emulator cores:~n  ~s -debug~n",
+			    [Cerl]);
+	_ ->
+	    catch io:format("A cerl script that probably can be used for "
+			    "inspection of emulator cores:~n  ~s~n",
+			    [Cerl])
     end,
     io:format("Searching for core-files in: ~s~s~n",
 	      [case XBase of
@@ -329,6 +348,8 @@ core_file_search(#core_search_conf{search_dir = Base,
 					 ["Ignored core-files found:",
 					  lists:reverse(ICores)]
 				 end]),
+
+	    lists:foreach(fun(C) -> dump_core(Conf,C) end, Cores),
 	    case {RunByTS, ICores, FCores} of
 		{true, [], []} -> ok;
 		{true, _, []} -> {comment, Res};