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-rw-r--r--lib/observer/src/crashdump_viewer.erl138
-rw-r--r--lib/observer/src/observer_html_lib.erl29
-rw-r--r--lib/observer/test/crashdump_viewer_SUITE.erl125
3 files changed, 193 insertions, 99 deletions
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl
index f7c44628cf..0534ead50e 100644
--- a/lib/observer/src/crashdump_viewer.erl
+++ b/lib/observer/src/crashdump_viewer.erl
@@ -36,7 +36,6 @@
%% file: The name of the crashdump currently viewed.
%% dump_vsn: The version number of the crashdump
%% wordsize: 4 | 8, the number of bytes in a word.
-%% binaries: a gb_tree containing binaries or links to binaries in the dump
%%
%% User API
@@ -124,7 +123,7 @@
-define(visible_node,visible_node).
--record(state,{file,dump_vsn,wordsize=4,num_atoms="unknown",binaries}).
+-record(state,{file,dump_vsn,wordsize=4,num_atoms="unknown"}).
%%%-----------------------------------------------------------------
%%% Debugging
@@ -307,6 +306,7 @@ expand_binary(Pos) ->
init([]) ->
ets:new(cdv_dump_index_table,[ordered_set,named_table,public]),
ets:new(cdv_reg_proc_table,[ordered_set,named_table,public]),
+ ets:new(cdv_binary_index_table,[ordered_set,named_table,public]),
{ok, #state{}}.
%%--------------------------------------------------------------------
@@ -350,9 +350,9 @@ handle_call(procs_summary,_From,State=#state{file=File,wordsize=WS}) ->
Procs = procs_summary(File,WS),
{reply,{ok,Procs,TW},State};
handle_call({proc_details,Pid},_From,
- State=#state{file=File,wordsize=WS,dump_vsn=DumpVsn,binaries=B})->
+ State=#state{file=File,wordsize=WS,dump_vsn=DumpVsn})->
Reply =
- case get_proc_details(File,Pid,WS,DumpVsn,B) of
+ case get_proc_details(File,Pid,WS,DumpVsn) of
{ok,Proc,TW} ->
{ok,Proc,TW};
Other ->
@@ -464,9 +464,9 @@ handle_call(schedulers,_From,State=#state{file=File}) ->
%%--------------------------------------------------------------------
handle_cast({read_file,File}, _State) ->
case do_read_file(File) of
- {ok,Binaries,DumpVsn} ->
+ {ok,DumpVsn} ->
observer_lib:report_progress({ok,done}),
- {noreply, #state{file=File,binaries=Binaries,dump_vsn=DumpVsn}};
+ {noreply, #state{file=File,dump_vsn=DumpVsn}};
Error ->
end_progress(Error),
{noreply, #state{}}
@@ -793,18 +793,17 @@ do_read_file(File) ->
{Tag,Id,Rest,N1} = tag(Fd,TagAndRest,1),
case Tag of
?erl_crash_dump ->
- reset_index_table(),
+ reset_tables(),
insert_index(Tag,Id,N1+1),
put_last_tag(Tag,""),
- indexify(Fd,Rest,N1),
+ DumpVsn = [list_to_integer(L) ||
+ L<-string:tokens(Id,".")],
+ AddrAdj = get_bin_addr_adj(DumpVsn),
+ indexify(Fd,AddrAdj,Rest,N1),
end_progress(),
check_if_truncated(),
- [{DumpVsn0,_}] = lookup_index(?erl_crash_dump),
- DumpVsn = [list_to_integer(L) ||
- L<-string:tokens(DumpVsn0,".")],
- Binaries = read_binaries(Fd,DumpVsn),
close(Fd),
- {ok,Binaries,DumpVsn};
+ {ok,DumpVsn};
_Other ->
R = io_lib:format(
"~ts is not an Erlang crash dump~n",
@@ -832,15 +831,26 @@ do_read_file(File) ->
{error,R}
end.
-indexify(Fd,Bin,N) ->
+indexify(Fd,AddrAdj,Bin,N) ->
case binary:match(Bin,<<"\n=">>) of
{Start,Len} ->
Pos = Start+Len,
<<_:Pos/binary,TagAndRest/binary>> = Bin,
{Tag,Id,Rest,N1} = tag(Fd,TagAndRest,N+Pos),
- insert_index(Tag,Id,N1+1), % +1 to get past newline
+ NewPos = N1+1, % +1 to get past newline
+ case Tag of
+ ?binary ->
+ %% Binaries are stored in a separate table in
+ %% order to minimize lookup time. Key is the
+ %% translated address.
+ {HexAddr,_} = get_hex(Id),
+ Addr = HexAddr bor AddrAdj,
+ insert_binary_index(Addr,NewPos);
+ _ ->
+ insert_index(Tag,Id,NewPos)
+ end,
put_last_tag(Tag,Id),
- indexify(Fd,Rest,N1);
+ indexify(Fd,AddrAdj,Rest,N1);
nomatch ->
case progress_read(Fd) of
{ok,Chunk0} when is_binary(Chunk0) ->
@@ -851,7 +861,7 @@ indexify(Fd,Bin,N) ->
_ ->
{Chunk0,N+byte_size(Bin)}
end,
- indexify(Fd,Chunk,N1);
+ indexify(Fd,AddrAdj,Chunk,N1);
eof ->
eof
end
@@ -1040,14 +1050,14 @@ procs_summary(File,WS) ->
%%-----------------------------------------------------------------
%% Page with one process
-get_proc_details(File,Pid,WS,DumpVsn,Binaries) ->
+get_proc_details(File,Pid,WS,DumpVsn) ->
case lookup_index(?proc,Pid) of
[{_,Start}] ->
Fd = open(File),
{{Stack,MsgQ,Dict},TW} =
case truncated_warning([{?proc,Pid}]) of
[] ->
- {expand_memory(Fd,Pid,DumpVsn,Binaries),[]};
+ {expand_memory(Fd,Pid,DumpVsn),[]};
TW0 ->
{{[],[],[]},TW0}
end,
@@ -1365,10 +1375,10 @@ maybe_other_node2(Channel) ->
end.
-expand_memory(Fd,Pid,DumpVsn,Binaries) ->
+expand_memory(Fd,Pid,DumpVsn) ->
BinAddrAdj = get_bin_addr_adj(DumpVsn),
put(fd,Fd),
- Dict = read_heap(Fd,Pid,BinAddrAdj,Binaries),
+ Dict = read_heap(Fd,Pid,BinAddrAdj,gb_trees:empty()),
Expanded = {read_stack_dump(Fd,Pid,BinAddrAdj,Dict),
read_messages(Fd,Pid,BinAddrAdj,Dict),
read_dictionary(Fd,Pid,BinAddrAdj,Dict)},
@@ -1386,25 +1396,6 @@ get_bin_addr_adj(_) ->
0.
%%%
-%%% Read binaries.
-%%%
-read_binaries(Fd,DumpVsn) ->
- AllBinaries = lookup_index(?binary),
- AddrAdj = get_bin_addr_adj(DumpVsn),
- Fun = fun({Addr0,Pos},Dict0) ->
- pos_bof(Fd,Pos),
- {HexAddr,_} = get_hex(Addr0),
- Addr = HexAddr bor AddrAdj,
- Bin =
- case line_head(Fd) of
- {eof,_} -> '#CDVTruncatedBinary';
- _Size -> {'#CDVBin',Pos}
- end,
- gb_trees:enter(Addr,Bin,Dict0)
- end,
- progress_foldl("Processing binaries",Fun,gb_trees:empty(),AllBinaries).
-
-%%%
%%% Read top level section.
%%%
@@ -2564,9 +2555,9 @@ parse_heap_term("Yc"++Line0, Addr, BinAddrAdj, D0) -> %Reference-counted binary.
{Offset,":"++Line2} = get_hex(Line1),
{Sz,Line} = get_hex(Line2),
Binp = Binp0 bor BinAddrAdj,
- Term = case gb_trees:lookup(Binp, D0) of
- {value,Bin} -> cdvbin(Offset,Sz,Bin);
- none -> '#CDVNonexistingBinary'
+ Term = case lookup_binary_index(Binp) of
+ [{_,Start}] -> cdvbin(Offset,Sz,{'#CDVBin',Start});
+ [] -> '#CDVNonexistingBinary'
end,
D = gb_trees:insert(Addr, Term, D0),
{Term,Line,D};
@@ -2575,15 +2566,14 @@ parse_heap_term("Ys"++Line0, Addr, BinAddrAdj, D0) -> %Sub binary.
{Offset,":"++Line2} = get_hex(Line1),
{Sz,Line} = get_hex(Line2),
Binp = Binp0 bor BinAddrAdj,
- Term = case gb_trees:lookup(Binp, D0) of
- {value,Bin} -> cdvbin(Offset,Sz,Bin);
- none when Binp0=/=Binp ->
+ Term = case lookup_binary_index(Binp) of
+ [{_,Start}] -> cdvbin(Offset,Sz,{'#CDVBin',Start});
+ [] ->
%% Might it be on the heap?
- case gb_trees:lookup(Binp0, D0) of
+ case gb_trees:lookup(Binp, D0) of
{value,Bin} -> cdvbin(Offset,Sz,Bin);
none -> '#CDVNonexistingBinary'
- end;
- none -> '#CDVNonexistingBinary'
+ end
end,
D = gb_trees:insert(Addr, Term, D0),
{Term,Line,D}.
@@ -2739,12 +2729,20 @@ get_label([H|T], Acc) ->
get_label(T, [H|Acc]).
get_binary(Line0) ->
- {N,":"++Line} = get_hex(Line0),
- do_get_binary(N, Line, []).
+ case get_hex(Line0) of
+ {N,":"++Line} ->
+ do_get_binary(N, Line, []);
+ _ ->
+ {'#CDVTruncatedBinary',[]}
+ end.
get_binary(Offset,Size,Line0) ->
- {_N,":"++Line} = get_hex(Line0),
- do_get_binary(Size, lists:sublist(Line,(Offset*2)+1,Size*2), []).
+ case get_hex(Line0) of
+ {_N,":"++Line} ->
+ do_get_binary(Size, lists:sublist(Line,(Offset*2)+1,Size*2), []);
+ _ ->
+ {'#CDVTruncatedBinary',[]}
+ end.
do_get_binary(0, Line, Acc) ->
{list_to_binary(lists:reverse(Acc)),Line};
@@ -2759,12 +2757,16 @@ cdvbin(Offset,Size,{'#CDVBin',Pos}) ->
cdvbin(Offset,Size,['#CDVBin',_,_,Pos]) ->
['#CDVBin',Offset,Size,Pos];
cdvbin(_,_,'#CDVTruncatedBinary') ->
- '#CDVTruncatedBinary'.
+ '#CDVTruncatedBinary';
+cdvbin(_,_,'#CDVNonexistingBinary') ->
+ '#CDVNonexistingBinary'.
%%-----------------------------------------------------------------
-%% Functions for accessing the cdv_dump_index_table
-reset_index_table() ->
- ets:delete_all_objects(cdv_dump_index_table).
+%% Functions for accessing tables
+reset_tables() ->
+ ets:delete_all_objects(cdv_dump_index_table),
+ ets:delete_all_objects(cdv_reg_proc_table),
+ ets:delete_all_objects(cdv_binary_index_table).
insert_index(Tag,Id,Pos) ->
ets:insert(cdv_dump_index_table,{{Tag,Pos},Id}).
@@ -2779,6 +2781,11 @@ lookup_index(Tag,Id) ->
count_index(Tag) ->
ets:select_count(cdv_dump_index_table,[{{{Tag,'_'},'_'},[],[true]}]).
+insert_binary_index(Addr,Pos) ->
+ ets:insert(cdv_binary_index_table,{Addr,Pos}).
+
+lookup_binary_index(Addr) ->
+ ets:lookup(cdv_binary_index_table,Addr).
%%-----------------------------------------------------------------
%% Convert tags read from crashdump to atoms used as first part of key
@@ -2849,23 +2856,6 @@ to_value_list(Record) ->
Values.
%%%-----------------------------------------------------------------
-%%% Fold over List and report progress in percent.
-%%% Report is the text to be presented in the progress dialog.
-%%% Acc0 is the initial accumulator and will be passed to Fun as the
-%%% second arguement, i.e. Fun = fun(Item,Acc) -> NewAcc end.
-progress_foldl(Report,Fun,Acc0,List) ->
- init_progress(Report, length(List)),
- progress_foldl1(Fun,Acc0,List).
-
-progress_foldl1(Fun,Acc,[H|T]) ->
- update_progress(),
- progress_foldl1(Fun,Fun(H,Acc),T);
-progress_foldl1(_Fun,Acc,[]) ->
- end_progress(),
- Acc.
-
-
-%%%-----------------------------------------------------------------
%%% Map over List and report progress in percent.
%%% Report is the text to be presented in the progress dialog.
%%% Distribute the load over a number of processes, and File is opened
diff --git a/lib/observer/src/observer_html_lib.erl b/lib/observer/src/observer_html_lib.erl
index 3dfcc42ada..a85808a472 100644
--- a/lib/observer/src/observer_html_lib.erl
+++ b/lib/observer/src/observer_html_lib.erl
@@ -337,17 +337,24 @@ href_proc_bin(From, T, Acc, LTB) ->
Size = list_to_integer(SizeStr),
PreviewSize = min(Size,10),
Id = {list_to_integer(Offset),PreviewSize,list_to_integer(Pos)},
- {ok,PreviewBin} = crashdump_viewer:expand_binary(Id),
- PreviewStr = preview_string(Size, PreviewBin),
- if LTB ->
- href("TARGET=\"expanded\"",
- ["#Binary?offset="++Offset++
- "&size="++SizeStr++
- "&pos="++Pos],
- PreviewStr);
- true ->
- PreviewStr
- end;
+ case crashdump_viewer:expand_binary(Id) of
+ {ok, '#CDVTruncatedBinary'} ->
+ lists:flatten(
+ "<FONT COLOR=\"#FF0000\">"
+ "&lt;&lt;...(Truncated Binary)&gt;&gt;"
+ "</FONT>");
+ {ok, PreviewBin} ->
+ PreviewStr = preview_string(Size, PreviewBin),
+ if LTB ->
+ href("TARGET=\"expanded\"",
+ ["#Binary?offset="++Offset++
+ "&size="++SizeStr++
+ "&pos="++Pos],
+ PreviewStr);
+ true ->
+ PreviewStr
+ end
+ end;
[PreviewIntStr,SizeStr,Md5] when From =:= obs ->
Size = list_to_integer(SizeStr),
PreviewInt = list_to_integer(PreviewIntStr),
diff --git a/lib/observer/test/crashdump_viewer_SUITE.erl b/lib/observer/test/crashdump_viewer_SUITE.erl
index 4b0127bcfb..4449ec54d1 100644
--- a/lib/observer/test/crashdump_viewer_SUITE.erl
+++ b/lib/observer/test/crashdump_viewer_SUITE.erl
@@ -76,7 +76,7 @@ end_per_testcase(Case, Config) ->
end,
ok.
-suite() -> [{ct_hooks,[ts_install_cth]}].
+suite() -> [].
all() ->
[start_stop,
@@ -416,19 +416,90 @@ special(File,Procs) ->
old_attrib=undefined,
old_comp_info=undefined}=Mod2,
ok;
- %% ".strangemodname" ->
- %% {ok,Mods,[]} = crashdump_viewer:loaded_modules(),
- %% lookat_all_mods(Mods),
- %% ok;
- %% ".sort" ->
- %% %% sort ports, atoms and modules ????
- %% ok;
- %% ".trunc" ->
- %% %% ????
- %% ok;
- ".trunc.bytes" ->
+ ".trunc_bin1" ->
+ %% This is 'full_dist' truncated after the first
+ %% "=binary:"
+ %% i.e. no binary exist in the dump
+ [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+ Pid = pid_to_list(Pid0),
+ {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+ io:format(" process details ok",[]),
+
+ #proc{dict=Dict} = ProcDetails,
+
+ '#CDVNonexistingBinary' = proplists:get_value(bin,Dict),
+ '#CDVNonexistingBinary' = proplists:get_value(sub_bin,Dict),
+
+ io:format(" nonexisting binaries ok",[]),
+ ok;
+ ".trunc_bin2" ->
+ %% This is 'full_dist' truncated after the first
+ %% "=binary:Addr\n
+ %% Size"
+ %% i.e. binaries are truncated
+ [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+ Pid = pid_to_list(Pid0),
+ {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+ io:format(" process details ok",[]),
+
+ #proc{dict=Dict} = ProcDetails,
+
+ ['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
+ {ok,'#CDVTruncatedBinary'} =
+ crashdump_viewer:expand_binary({Offset,Size,Pos}),
+ ['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
+ {ok,'#CDVTruncatedBinary'} =
+ crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
+
+ io:format(" expand truncated binary ok",[]),
+ ok;
+ ".trunc_bin3" ->
+ %% This is 'full_dist' truncated after the first
+ %% "=binary:Addr\n
+ %% Size:"
+ %% i.e. same as 'trunc_bin2', except the colon exists also
+ [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+ Pid = pid_to_list(Pid0),
+ {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+ io:format(" process details ok",[]),
+
+ #proc{dict=Dict} = ProcDetails,
+
+ ['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
+ {ok,'#CDVTruncatedBinary'} =
+ crashdump_viewer:expand_binary({Offset,Size,Pos}),
+ ['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
+ {ok,'#CDVTruncatedBinary'} =
+ crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
+
+ io:format(" expand truncated binary ok",[]),
+ ok;
+ ".trunc_bin4" ->
+ %% This is 'full_dist' truncated after the first
+ %% "=binary:Addr\n
+ %% Size:BinaryMissinOneByte"
+ %% i.e. the full binary is truncated, but the sub binary is complete
+ [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+ Pid = pid_to_list(Pid0),
+ {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+ io:format(" process details ok",[]),
+
+ #proc{dict=Dict} = ProcDetails,
+
+ ['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
+ {ok,'#CDVTruncatedBinary'} =
+ crashdump_viewer:expand_binary({Offset,Size,Pos}),
+ io:format(" expand truncated binary ok",[]),
+ ['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
+ {ok,<<_:SSize/binary>>} =
+ crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
+ io:format(" expand complete sub binary ok",[]),
+
+ ok;
+ ".trunc_bytes" ->
{ok,_,[TW]} = crashdump_viewer:general_info(),
{match,_} = re:run(TW,"CRASH DUMP SIZE LIMIT REACHED"),
+ io:format(" size limit information ok",[]),
ok;
".unicode" ->
#proc{pid=Pid0} =
@@ -504,15 +575,41 @@ do_create_dumps(DataDir,Rel) ->
CD3 = dump_with_args(DataDir,Rel,"instr","+Mim true"),
CD4 = dump_with_strange_module_name(DataDir,Rel,"strangemodname"),
Bytes = rand:uniform(300000) + 100,
- CD5 = dump_with_args(DataDir,Rel,"trunc.bytes",
+ CD5 = dump_with_args(DataDir,Rel,"trunc_bytes",
"-env ERL_CRASH_DUMP_BYTES " ++
integer_to_list(Bytes)),
CD6 = dump_with_unicode_atoms(DataDir,Rel,"unicode"),
- {[CD1,CD2,CD3,CD4,CD5,CD6], DosDump};
+ TruncatedDumps = truncate_dump(CD1),
+ {[CD1,CD2,CD3,CD4,CD5,CD6|TruncatedDumps], DosDump};
_ ->
{[CD1,CD2], DosDump}
end.
+truncate_dump(File) ->
+ {ok,Bin} = file:read_file(File),
+ BinTag = <<"\n=binary:">>,
+ Colon = <<":">>,
+ NewLine = case os:type() of
+ {win32,_} -> <<"\r\n">>;
+ _ -> <<"\n">>
+ end,
+ [StartBin,AfterTag] = binary:split(Bin,BinTag),
+ [AddrAndSize,BinaryAndRest] = binary:split(AfterTag,Colon),
+ [Binary,_Rest] = binary:split(BinaryAndRest,NewLine),
+ TruncSize = byte_size(Binary) - 2,
+ <<TruncBinary:TruncSize/binary,_/binary>> = Binary,
+ TruncName = filename:rootname(File) ++ ".trunc_bin",
+ write_trunc_files(TruncName,StartBin,
+ [BinTag,AddrAndSize,Colon,TruncBinary],1).
+
+write_trunc_files(TruncName0,Bin,[Part|Parts],N) ->
+ TruncName = TruncName0++integer_to_list(N),
+ Bin1 = <<Bin/binary,Part/binary>>,
+ ok = file:write_file(TruncName,Bin1),
+ [TruncName|write_trunc_files(TruncName0,Bin1,Parts,N+1)];
+write_trunc_files(_,_,[],_) ->
+ [].
+
%% Create a dump which has three visible nodes, one hidden and one
%% not connected node, and with monitors and links between nodes.
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 23:12:02 +0000