diff options
Diffstat (limited to 'lib/observer/src')
| -rw-r--r-- | lib/observer/src/crashdump_viewer.erl | 179 |
1 files changed, 93 insertions, 86 deletions
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl index 40450a2873..be9204f729 100644 --- a/lib/observer/src/crashdump_viewer.erl +++ b/lib/observer/src/crashdump_viewer.erl @@ -145,6 +145,7 @@ -record(state,{file,dump_vsn,wordsize=4,num_atoms="unknown"}). +-record(dec_opts, {bin_addr_adj=0}). %%%----------------------------------------------------------------- %%% Debugging @@ -828,8 +829,8 @@ do_read_file(File) -> reset_tables(), insert_index(Tag,Id,N1+1), put_last_tag(Tag,""), - AddrAdj = get_bin_addr_adj(DumpVsn), - indexify(Fd,AddrAdj,Rest,N1), + DecodeOpts = get_decode_opts(DumpVsn), + indexify(Fd,DecodeOpts,Rest,N1), end_progress(), check_if_truncated(), close(Fd), @@ -877,7 +878,7 @@ check_dump_version(Vsn) -> {ok,DumpVsn} end. -indexify(Fd,AddrAdj,Bin,N) -> +indexify(Fd,DecodeOpts,Bin,N) -> case binary:match(Bin,<<"\n=">>) of {Start,Len} -> Pos = Start+Len, @@ -890,7 +891,7 @@ indexify(Fd,AddrAdj,Bin,N) -> %% order to minimize lookup time. Key is the %% translated address. {HexAddr,_} = get_hex(Id), - Addr = HexAddr bor AddrAdj, + Addr = HexAddr bor DecodeOpts#dec_opts.bin_addr_adj, insert_binary_index(Addr,NewPos); _ -> insert_index(Tag,Id,NewPos) @@ -914,7 +915,7 @@ indexify(Fd,AddrAdj,Bin,N) -> end; _ -> ok end, - indexify(Fd,AddrAdj,Rest,N1); + indexify(Fd,DecodeOpts,Rest,N1); nomatch -> case progress_read(Fd) of {ok,Chunk0} when is_binary(Chunk0) -> @@ -925,7 +926,7 @@ indexify(Fd,AddrAdj,Bin,N) -> _ -> {Chunk0,N+byte_size(Bin)} end, - indexify(Fd,AddrAdj,Chunk,N1); + indexify(Fd,DecodeOpts,Chunk,N1); eof -> eof end @@ -1441,21 +1442,21 @@ maybe_other_node2(Channel) -> expand_memory(Fd,Pid,DumpVsn) -> - BinAddrAdj = get_bin_addr_adj(DumpVsn), + DecodeOpts = get_decode_opts(DumpVsn), put(fd,Fd), Dict0 = case get(?literals) of undefined -> - Literals = read_literals(Fd), + Literals = read_literals(Fd,DecodeOpts), put(?literals,Literals), put(fd,Fd), Literals; Literals -> Literals end, - Dict = read_heap(Fd,Pid,BinAddrAdj,Dict0), - Expanded = {read_stack_dump(Fd,Pid,BinAddrAdj,Dict), - read_messages(Fd,Pid,BinAddrAdj,Dict), - read_dictionary(Fd,Pid,BinAddrAdj,Dict)}, + Dict = read_heap(Fd,Pid,DecodeOpts,Dict0), + Expanded = {read_stack_dump(Fd,Pid,DecodeOpts,Dict), + read_messages(Fd,Pid,DecodeOpts,Dict), + read_dictionary(Fd,Pid,DecodeOpts,Dict)}, erase(fd), IncompleteWarning = case erase(incomplete_heap) of @@ -1467,52 +1468,58 @@ expand_memory(Fd,Pid,DumpVsn) -> end, {Expanded,IncompleteWarning}. -read_literals(Fd) -> +read_literals(Fd,DecodeOpts) -> case lookup_index(?literals,[]) of [{_,Start}] -> [{_,Chars}] = ets:lookup(cdv_heap_file_chars,literals), init_progress("Reading literals",Chars), pos_bof(Fd,Start), - read_heap(0,gb_trees:empty()); + read_heap(DecodeOpts,gb_trees:empty()); [] -> gb_trees:empty() end. -%%%----------------------------------------------------------------- -%%% This is a workaround for a bug in dump versions prior to 0.3: -%%% Addresses were truncated to 32 bits. This could cause binaries to -%%% get the same address as heap terms in the dump. To work around it -%%% we always store binaries on very high addresses in the gb_tree. -get_bin_addr_adj(DumpVsn) when DumpVsn < [0,3] -> - 16#f bsl 64; -get_bin_addr_adj(_) -> - 0. +get_decode_opts(DumpVsn) -> + BinAddrAdj = if + DumpVsn < [0,3] -> + %% This is a workaround for a bug in dump + %% versions prior to 0.3: Addresses were + %% truncated to 32 bits. This could cause + %% binaries to get the same address as heap + %% terms in the dump. To work around it we + %% always store binaries on very high + %% addresses in the gb_tree. + 16#f bsl 64; + true -> + 0 + end, + #dec_opts{bin_addr_adj=BinAddrAdj}. %%% %%% Read top level section. %%% -read_stack_dump(Fd,Pid,BinAddrAdj,Dict) -> +read_stack_dump(Fd,Pid,DecodeOpts,Dict) -> case lookup_index(?proc_stack,Pid) of [{_,Start}] -> pos_bof(Fd,Start), - read_stack_dump1(Fd,BinAddrAdj,Dict,[]); + read_stack_dump1(Fd,DecodeOpts,Dict,[]); [] -> [] end. -read_stack_dump1(Fd,BinAddrAdj,Dict,Acc) -> +read_stack_dump1(Fd,DecodeOpts,Dict,Acc) -> %% This function is never called if the dump is truncated in {?proc_heap,Pid} case bytes(Fd) of "=" ++ _next_tag -> lists:reverse(Acc); Line -> - Stack = parse_top(Line,BinAddrAdj,Dict), - read_stack_dump1(Fd,BinAddrAdj,Dict,[Stack|Acc]) + Stack = parse_top(Line,DecodeOpts,Dict), + read_stack_dump1(Fd,DecodeOpts,Dict,[Stack|Acc]) end. -parse_top(Line0, BinAddrAdj, D) -> +parse_top(Line0, DecodeOpts, D) -> {Label,Line1} = get_label(Line0), - {Term,Line,D} = parse_term(Line1, BinAddrAdj, D), + {Term,Line,D} = parse_term(Line1, DecodeOpts, D), [] = skip_blanks(Line), {Label,Term}. @@ -1520,27 +1527,27 @@ parse_top(Line0, BinAddrAdj, D) -> %%% Read message queue. %%% -read_messages(Fd,Pid,BinAddrAdj,Dict) -> +read_messages(Fd,Pid,DecodeOpts,Dict) -> case lookup_index(?proc_messages,Pid) of [{_,Start}] -> pos_bof(Fd,Start), - read_messages1(Fd,BinAddrAdj,Dict,[]); + read_messages1(Fd,DecodeOpts,Dict,[]); [] -> [] end. -read_messages1(Fd,BinAddrAdj,Dict,Acc) -> +read_messages1(Fd,DecodeOpts,Dict,Acc) -> %% This function is never called if the dump is truncated in {?proc_heap,Pid} case bytes(Fd) of "=" ++ _next_tag -> lists:reverse(Acc); Line -> - Msg = parse_message(Line,BinAddrAdj,Dict), - read_messages1(Fd,BinAddrAdj,Dict,[Msg|Acc]) + Msg = parse_message(Line,DecodeOpts,Dict), + read_messages1(Fd,DecodeOpts,Dict,[Msg|Acc]) end. -parse_message(Line0, BinAddrAdj, D) -> - {Msg,":"++Line1,_} = parse_term(Line0, BinAddrAdj, D), - {Token,Line,_} = parse_term(Line1, BinAddrAdj, D), +parse_message(Line0, DecodeOpts, D) -> + {Msg,":"++Line1,_} = parse_term(Line0, DecodeOpts, D), + {Token,Line,_} = parse_term(Line1, DecodeOpts, D), [] = skip_blanks(Line), {Msg,Token}. @@ -1548,26 +1555,26 @@ parse_message(Line0, BinAddrAdj, D) -> %%% Read process dictionary %%% -read_dictionary(Fd,Pid,BinAddrAdj,Dict) -> +read_dictionary(Fd,Pid,DecodeOpts,Dict) -> case lookup_index(?proc_dictionary,Pid) of [{_,Start}] -> pos_bof(Fd,Start), - read_dictionary1(Fd,BinAddrAdj,Dict,[]); + read_dictionary1(Fd,DecodeOpts,Dict,[]); [] -> [] end. -read_dictionary1(Fd,BinAddrAdj,Dict,Acc) -> +read_dictionary1(Fd,DecodeOpts,Dict,Acc) -> %% This function is never called if the dump is truncated in {?proc_heap,Pid} case bytes(Fd) of "=" ++ _next_tag -> lists:reverse(Acc); Line -> - Msg = parse_dictionary(Line,BinAddrAdj,Dict), - read_dictionary1(Fd,BinAddrAdj,Dict,[Msg|Acc]) + Msg = parse_dictionary(Line,DecodeOpts,Dict), + read_dictionary1(Fd,DecodeOpts,Dict,[Msg|Acc]) end. -parse_dictionary(Line0, BinAddrAdj, D) -> - {Entry,Line,_} = parse_term(Line0, BinAddrAdj, D), +parse_dictionary(Line0, DecodeOpts, D) -> + {Entry,Line,_} = parse_term(Line0, DecodeOpts, D), [] = skip_blanks(Line), Entry. @@ -1575,18 +1582,18 @@ parse_dictionary(Line0, BinAddrAdj, D) -> %%% Read heap data. %%% -read_heap(Fd,Pid,BinAddrAdj,Dict0) -> +read_heap(Fd,Pid,DecodeOpts,Dict0) -> case lookup_index(?proc_heap,Pid) of [{_,Pos}] -> [{_,Chars}] = ets:lookup(cdv_heap_file_chars,Pid), init_progress("Reading process heap",Chars), pos_bof(Fd,Pos), - read_heap(BinAddrAdj,Dict0); + read_heap(DecodeOpts,Dict0); [] -> Dict0 end. -read_heap(BinAddrAdj,Dict0) -> +read_heap(DecodeOpts,Dict0) -> %% This function is never called if the dump is truncated in {?proc_heap,Pid} case get(fd) of end_of_heap -> @@ -1600,14 +1607,14 @@ read_heap(BinAddrAdj,Dict0) -> Dict0; Line -> update_progress(length(Line)+1), - Dict = parse(Line,BinAddrAdj,Dict0), - read_heap(BinAddrAdj,Dict) + Dict = parse(Line,DecodeOpts,Dict0), + read_heap(DecodeOpts,Dict) end end. -parse(Line0, BinAddrAdj, Dict0) -> +parse(Line0, DecodeOpts, Dict0) -> {Addr,":"++Line1} = get_hex(Line0), - {_Term,Line,Dict} = parse_heap_term(Line1, Addr, BinAddrAdj, Dict0), + {_Term,Line,Dict} = parse_heap_term(Line1, Addr, DecodeOpts, Dict0), [] = skip_blanks(Line), Dict. @@ -2599,71 +2606,71 @@ get_limited_stack(Fd, N, Ds) -> %%%----------------------------------------------------------------- %%% Parse memory in crashdump version 0.1 and newer %%% -parse_heap_term([$l|Line0], Addr, BinAddrAdj, D0) -> %Cons cell. - {H,"|"++Line1,D1} = parse_term(Line0, BinAddrAdj, D0), - {T,Line,D2} = parse_term(Line1, BinAddrAdj, D1), +parse_heap_term([$l|Line0], Addr, DecodeOpts, D0) -> %Cons cell. + {H,"|"++Line1,D1} = parse_term(Line0, DecodeOpts, D0), + {T,Line,D2} = parse_term(Line1, DecodeOpts, D1), Term = [H|T], D = gb_trees:insert(Addr, Term, D2), {Term,Line,D}; -parse_heap_term([$t|Line0], Addr, BinAddrAdj, D) -> %Tuple +parse_heap_term([$t|Line0], Addr, DecodeOpts, D) -> %Tuple {N,":"++Line} = get_hex(Line0), - parse_tuple(N, Line, Addr, BinAddrAdj, D, []); -parse_heap_term([$F|Line0], Addr, _BinAddrAdj, D0) -> %Float + parse_tuple(N, Line, Addr, DecodeOpts, D, []); +parse_heap_term([$F|Line0], Addr, _DecodeOpts, D0) -> %Float {N,":"++Line1} = get_hex(Line0), {Chars,Line} = get_chars(N, Line1), Term = list_to_float(Chars), D = gb_trees:insert(Addr, Term, D0), {Term,Line,D}; -parse_heap_term("B16#"++Line0, Addr, _BinAddrAdj, D0) -> %Positive big number. +parse_heap_term("B16#"++Line0, Addr, _DecodeOpts, D0) -> %Positive big number. {Term,Line} = get_hex(Line0), D = gb_trees:insert(Addr, Term, D0), {Term,Line,D}; -parse_heap_term("B-16#"++Line0, Addr, _BinAddrAdj, D0) -> %Negative big number +parse_heap_term("B-16#"++Line0, Addr, _DecodeOpts, D0) -> %Negative big number {Term0,Line} = get_hex(Line0), Term = -Term0, D = gb_trees:insert(Addr, Term, D0), {Term,Line,D}; -parse_heap_term("B"++Line0, Addr, _BinAddrAdj, D0) -> %Decimal big num +parse_heap_term("B"++Line0, Addr, _DecodeOpts, D0) -> %Decimal big num case string:to_integer(Line0) of {Int,Line} when is_integer(Int) -> D = gb_trees:insert(Addr, Int, D0), {Int,Line,D} end; -parse_heap_term([$P|Line0], Addr, _BinAddrAdj, D0) -> % External Pid. +parse_heap_term([$P|Line0], Addr, _DecodeOpts, D0) -> % External Pid. {Pid0,Line} = get_id(Line0), Pid = ['#CDVPid'|Pid0], D = gb_trees:insert(Addr, Pid, D0), {Pid,Line,D}; -parse_heap_term([$p|Line0], Addr, _BinAddrAdj, D0) -> % External Port. +parse_heap_term([$p|Line0], Addr, _DecodeOpts, D0) -> % External Port. {Port0,Line} = get_id(Line0), Port = ['#CDVPort'|Port0], D = gb_trees:insert(Addr, Port, D0), {Port,Line,D}; -parse_heap_term("E"++Line0, Addr, _BinAddrAdj, D0) -> %Term encoded in external format. +parse_heap_term("E"++Line0, Addr, _DecodeOpts, D0) -> %Term encoded in external format. {Bin,Line} = get_binary(Line0), Term = binary_to_term(Bin), D = gb_trees:insert(Addr, Term, D0), {Term,Line,D}; -parse_heap_term("Yh"++Line0, Addr, _BinAddrAdj, D0) -> %Heap binary. +parse_heap_term("Yh"++Line0, Addr, _DecodeOpts, D0) -> %Heap binary. {Term,Line} = get_binary(Line0), D = gb_trees:insert(Addr, Term, D0), {Term,Line,D}; -parse_heap_term("Yc"++Line0, Addr, BinAddrAdj, D0) -> %Reference-counted binary. +parse_heap_term("Yc"++Line0, Addr, DecodeOpts, D0) -> %Reference-counted binary. {Binp0,":"++Line1} = get_hex(Line0), {Offset,":"++Line2} = get_hex(Line1), {Sz,Line} = get_hex(Line2), - Binp = Binp0 bor BinAddrAdj, + Binp = Binp0 bor DecodeOpts#dec_opts.bin_addr_adj, 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}; -parse_heap_term("Ys"++Line0, Addr, BinAddrAdj, D0) -> %Sub binary. +parse_heap_term("Ys"++Line0, Addr, DecodeOpts, D0) -> %Sub binary. {Binp0,":"++Line1} = get_hex(Line0), {Offset,":"++Line2} = get_hex(Line1), {Sz,Line} = get_hex(Line2), - Binp = Binp0 bor BinAddrAdj, + Binp = Binp0 bor DecodeOpts#dec_opts.bin_addr_adj, Term = case lookup_binary_index(Binp) of [{_,Start}] -> cdvbin(Offset,Sz,{'#CDVBin',Start}); [] -> @@ -2675,36 +2682,36 @@ parse_heap_term("Ys"++Line0, Addr, BinAddrAdj, D0) -> %Sub binary. end, D = gb_trees:insert(Addr, Term, D0), {Term,Line,D}; -parse_heap_term("Mf"++Line0, Addr, BinAddrAdj, D0) -> %Flatmap. +parse_heap_term("Mf"++Line0, Addr, DecodeOpts, D0) -> %Flatmap. {Size,":"++Line1} = get_hex(Line0), - {Keys,":"++Line2,D1} = parse_term(Line1, BinAddrAdj, D0), - {Values,Line,D2} = parse_tuple(Size, Line2, Addr,BinAddrAdj, D1, []), + {Keys,":"++Line2,D1} = parse_term(Line1, DecodeOpts, D0), + {Values,Line,D2} = parse_tuple(Size, Line2, Addr,DecodeOpts, D1, []), Pairs = zip_tuples(tuple_size(Keys), Keys, Values, []), Map = maps:from_list(Pairs), D = gb_trees:update(Addr, Map, D2), {Map,Line,D}; -parse_heap_term("Mh"++Line0, Addr, BinAddrAdj, D0) -> %Head node in a hashmap. +parse_heap_term("Mh"++Line0, Addr, DecodeOpts, D0) -> %Head node in a hashmap. {MapSize,":"++Line1} = get_hex(Line0), {N,":"++Line2} = get_hex(Line1), - {Nodes,Line,D1} = parse_tuple(N, Line2, Addr, BinAddrAdj, D0, []), + {Nodes,Line,D1} = parse_tuple(N, Line2, Addr, DecodeOpts, D0, []), Map = maps:from_list(flatten_hashmap_nodes(Nodes)), MapSize = maps:size(Map), %Assertion. D = gb_trees:update(Addr, Map, D1), {Map,Line,D}; -parse_heap_term("Mn"++Line0, Addr, BinAddrAdj, D) -> %Interior node in a hashmap. +parse_heap_term("Mn"++Line0, Addr, DecodeOpts, D) -> %Interior node in a hashmap. {N,":"++Line} = get_hex(Line0), - parse_tuple(N, Line, Addr, BinAddrAdj, D, []). + parse_tuple(N, Line, Addr, DecodeOpts, D, []). parse_tuple(0, Line, Addr, _, D0, Acc) -> Tuple = list_to_tuple(lists:reverse(Acc)), D = gb_trees:insert(Addr, Tuple, D0), {Tuple,Line,D}; -parse_tuple(N, Line0, Addr, BinAddrAdj, D0, Acc) -> - case parse_term(Line0, BinAddrAdj, D0) of +parse_tuple(N, Line0, Addr, DecodeOpts, D0, Acc) -> + case parse_term(Line0, DecodeOpts, D0) of {Term,[$,|Line],D} when N > 1 -> - parse_tuple(N-1, Line, Addr, BinAddrAdj, D, [Term|Acc]); + parse_tuple(N-1, Line, Addr, DecodeOpts, D, [Term|Acc]); {Term,Line,D}-> - parse_tuple(N-1, Line, Addr, BinAddrAdj, D, [Term|Acc]) + parse_tuple(N-1, Line, Addr, DecodeOpts, D, [Term|Acc]) end. zip_tuples(0, _T1, _T2, Acc) -> @@ -2726,9 +2733,9 @@ flatten_hashmap_nodes_1(N, Tuple0, Acc0) -> flatten_hashmap_nodes_1(tuple_size(Tuple), Tuple, Acc) end. -parse_term([$H|Line0], BinAddrAdj, D) -> %Pointer to heap term. +parse_term([$H|Line0], DecodeOpts, D) -> %Pointer to heap term. {Ptr,Line} = get_hex(Line0), - deref_ptr(Ptr, Line, BinAddrAdj, D); + deref_ptr(Ptr, Line, DecodeOpts, D); parse_term([$N|Line], _, D) -> %[] (nil). {[],Line,D}; parse_term([$I|Line0], _, D) -> %Small. @@ -2785,7 +2792,7 @@ parse_atom_translation_table(N, Line0, As) -> -deref_ptr(Ptr, Line, BinAddrAdj, D0) -> +deref_ptr(Ptr, Line, DecodeOpts, D0) -> case gb_trees:lookup(Ptr, D0) of {value,Term} -> {Term,Line,D0}; @@ -2798,11 +2805,11 @@ deref_ptr(Ptr, Line, BinAddrAdj, D0) -> case bytes(Fd) of "="++_ -> put(fd, end_of_heap), - deref_ptr(Ptr, Line, BinAddrAdj, D0); + deref_ptr(Ptr, Line, DecodeOpts, D0); L -> update_progress(length(L)+1), - D = parse(L, BinAddrAdj, D0), - deref_ptr(Ptr, Line, BinAddrAdj, D) + D = parse(L, DecodeOpts, D0), + deref_ptr(Ptr, Line, DecodeOpts, D) end end end. |