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authorBjörn Gustavsson <[email protected]>2017-11-24 10:06:33 +0100
committerBjörn Gustavsson <[email protected]>2017-11-24 10:06:33 +0100
commitc17978f689ca8f9dd36f76fa8fcf448664921301 (patch)
tree582f375dccc7908c3807f297ebb0f0ab89424319 /lib
parent1678e021c603d0cbc9d951da4facc6e959e5f277 (diff)
parent3b964e8dbaa0cd73ca7a983b3ce948e0dbd2c35c (diff)
downloadotp-c17978f689ca8f9dd36f76fa8fcf448664921301.tar.gz
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otp-c17978f689ca8f9dd36f76fa8fcf448664921301.zip
Merge branch 'bjorn/base64-in-dumps/OTP-14686' into maint
* bjorn/base64-in-dumps/OTP-14686: Use base64 encoding in crash dumps Correct parsing of sub binaries Generalize passing of options for decoding
Diffstat (limited to 'lib')
-rw-r--r--lib/observer/src/crashdump_viewer.erl414
-rw-r--r--lib/observer/test/crashdump_helper.erl14
-rw-r--r--lib/observer/test/crashdump_viewer_SUITE.erl10
3 files changed, 264 insertions, 174 deletions
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl
index 40450a2873..feaec5c678 100644
--- a/lib/observer/src/crashdump_viewer.erl
+++ b/lib/observer/src/crashdump_viewer.erl
@@ -105,8 +105,10 @@
% line_head/1 function can return
-define(not_available,"N/A").
-define(binary_size_progress_limit,10000).
--define(max_dump_version,[0,4]).
+-define(max_dump_version,[0,5]).
+%% The value of the next define must be divisible by 4.
+-define(base64_chunk_size, (4*256)).
%% All possible tags - use macros in order to avoid misspelling in the code
-define(abort,abort).
@@ -145,6 +147,7 @@
-record(state,{file,dump_vsn,wordsize=4,num_atoms="unknown"}).
+-record(dec_opts, {bin_addr_adj=0,base64=true}).
%%%-----------------------------------------------------------------
%%% Debugging
@@ -367,10 +370,12 @@ handle_call(general_info,_From,State=#state{file=File}) ->
ets:insert(cdv_reg_proc_table,
{cdv_dump_node_name,GenInfo#general_info.node_name}),
{reply,{ok,GenInfo,TW},State#state{wordsize=WS, num_atoms=NumAtoms}};
-handle_call({expand_binary,{Offset,Size,Pos}},_From,State=#state{file=File}) ->
+handle_call({expand_binary,{Offset,Size,Pos}},_From,
+ #state{file=File,dump_vsn=DumpVsn}=State) ->
Fd = open(File),
pos_bof(Fd,Pos),
- {Bin,_Line} = get_binary(Offset,Size,bytes(Fd)),
+ DecodeOpts = get_decode_opts(DumpVsn),
+ {Bin,_Line} = get_binary(Offset,Size,bytes(Fd),DecodeOpts),
close(Fd),
{reply,{ok,Bin},State};
handle_call(procs_summary,_From,State=#state{file=File,wordsize=WS}) ->
@@ -443,9 +448,11 @@ handle_call(loaded_mods,_From,State=#state{file=File}) ->
TW = truncated_warning([?mod]),
{_CC,_OC,Mods} = loaded_mods(File),
{reply,{ok,Mods,TW},State};
-handle_call({loaded_mod_details,Mod},_From,State=#state{file=File}) ->
+handle_call({loaded_mod_details,Mod},_From,
+ #state{dump_vsn=DumpVsn,file=File}=State) ->
TW = truncated_warning([{?mod,Mod}]),
- ModInfo = get_loaded_mod_details(File,Mod),
+ DecodeOpts = get_decode_opts(DumpVsn),
+ ModInfo = get_loaded_mod_details(File,Mod,DecodeOpts),
{reply,{ok,ModInfo,TW},State};
handle_call(funs,_From,State=#state{file=File}) ->
TW = truncated_warning([?fu]),
@@ -828,8 +835,8 @@ 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 +884,7 @@ 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 +897,7 @@ 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 +921,7 @@ 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 +932,7 @@ 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 +1448,21 @@ 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 +1474,59 @@ 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,
+ Base64 = DumpVsn >= [0,5],
+ #dec_opts{bin_addr_adj=BinAddrAdj,base64=Base64}.
%%%
%%% 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 +1534,27 @@ 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 +1562,26 @@ 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 +1589,18 @@ 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 +1614,14 @@ 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.
@@ -1927,12 +1941,15 @@ get_nodeinfo(Fd,Nod) ->
%%-----------------------------------------------------------------
%% Page with details about one loaded modules
-get_loaded_mod_details(File,Mod) ->
+get_loaded_mod_details(File,Mod,DecodeOpts) ->
[{_,Start}] = lookup_index(?mod,Mod),
Fd = open(File),
pos_bof(Fd,Start),
InitLM = #loaded_mod{mod=Mod,old_size="No old code exists"},
- ModInfo = get_loaded_mod_info(Fd,InitLM,fun all_modinfo/3),
+ Fun = fun(F, LM, LineHead) ->
+ all_modinfo(F, LM, LineHead, DecodeOpts)
+ end,
+ ModInfo = get_loaded_mod_info(Fd,InitLM,Fun),
close(Fd),
ModInfo.
@@ -1990,59 +2007,44 @@ get_loaded_mod_info(Fd,LM,Fun) ->
main_modinfo(_Fd,LM,_LineHead) ->
LM.
-all_modinfo(Fd,LM,LineHead) ->
+all_modinfo(Fd,LM,LineHead,DecodeOpts) ->
case LineHead of
"Current attributes" ->
- Str = hex_to_str(bytes(Fd,"")),
+ Str = get_attribute(Fd, DecodeOpts),
LM#loaded_mod{current_attrib=Str};
"Current compilation info" ->
- Str = hex_to_str(bytes(Fd,"")),
+ Str = get_attribute(Fd, DecodeOpts),
LM#loaded_mod{current_comp_info=Str};
"Old attributes" ->
- Str = hex_to_str(bytes(Fd,"")),
+ Str = get_attribute(Fd, DecodeOpts),
LM#loaded_mod{old_attrib=Str};
"Old compilation info" ->
- Str = hex_to_str(bytes(Fd,"")),
+ Str = get_attribute(Fd, DecodeOpts),
LM#loaded_mod{old_comp_info=Str};
Other ->
unexpected(Fd,Other,"loaded modules info"),
LM
end.
-
-hex_to_str(Hex) ->
- Term = hex_to_term(Hex,[]),
- io_lib:format("~tp~n",[Term]).
-
-hex_to_term([X,Y|Hex],Acc) ->
- MS = hex_to_dec([X]),
- LS = hex_to_dec([Y]),
- Z = 16*MS+LS,
- hex_to_term(Hex,[Z|Acc]);
-hex_to_term([],Acc) ->
- Bin = list_to_binary(lists:reverse(Acc)),
- case catch binary_to_term(Bin) of
- {'EXIT',_Reason} ->
- {"WARNING: The term is probably truncated!",
- "I can not do binary_to_term.",
- Bin};
- Term ->
- Term
- end;
-hex_to_term(Rest,Acc) ->
- {"WARNING: The term is probably truncated!",
- "I can not convert hex to term.",
- Rest,list_to_binary(lists:reverse(Acc))}.
-
-
-hex_to_dec("F") -> 15;
-hex_to_dec("E") -> 14;
-hex_to_dec("D") -> 13;
-hex_to_dec("C") -> 12;
-hex_to_dec("B") -> 11;
-hex_to_dec("A") -> 10;
-hex_to_dec(N) -> list_to_integer(N).
-
+get_attribute(Fd, DecodeOpts) ->
+ Bytes = bytes(Fd, ""),
+ try get_binary(Bytes, DecodeOpts) of
+ {Bin,_} ->
+ try binary_to_term(Bin) of
+ Term ->
+ io_lib:format("~tp~n",[Term])
+ catch
+ _:_ ->
+ {"WARNING: The term is probably truncated!",
+ "I cannot do binary_to_term/1.",
+ Bin}
+ end
+ catch
+ _:_ ->
+ {"WARNING: The term is probably truncated!",
+ "I cannot convert to binary.",
+ Bytes}
+ end.
%%-----------------------------------------------------------------
%% Page with list of all funs
@@ -2599,112 +2601,110 @@ 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.
- {Bin,Line} = get_binary(Line0),
+parse_heap_term("E"++Line0, Addr, DecodeOpts, D0) -> %Term encoded in external format.
+ {Bin,Line} = get_binary(Line0, DecodeOpts),
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.
- {Term,Line} = get_binary(Line0),
+parse_heap_term("Yh"++Line0, Addr, DecodeOpts, D0) -> %Heap binary.
+ {Term,Line} = get_binary(Line0, DecodeOpts),
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,
- 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.
+ Binp = Binp0 bor DecodeOpts#dec_opts.bin_addr_adj,
+ case lookup_binary_index(Binp) of
+ [{_,Start}] ->
+ SymbolicBin = {'#CDVBin',Start},
+ Term = cdvbin(Offset, Sz, SymbolicBin),
+ D1 = gb_trees:insert(Addr, Term, D0),
+ D = gb_trees:insert(Binp, SymbolicBin, D1),
+ {Term,Line,D};
+ [] ->
+ Term = '#CDVNonexistingBinary',
+ D1 = gb_trees:insert(Addr, Term, D0),
+ D = gb_trees:insert(Binp, Term, D1),
+ {Term,Line,D}
+ end;
+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,
- Term = case lookup_binary_index(Binp) of
- [{_,Start}] -> cdvbin(Offset,Sz,{'#CDVBin',Start});
- [] ->
- %% Might it be on the heap?
- case gb_trees:lookup(Binp, D0) of
- {value,Bin} -> cdvbin(Offset,Sz,Bin);
- none -> '#CDVNonexistingBinary'
- end
- end,
- D = gb_trees:insert(Addr, Term, D0),
+ {Sz,Line3} = get_hex(Line2),
+ {Term,Line,D1} = deref_bin(Binp0, Offset, Sz, Line3, DecodeOpts, D0),
+ D = gb_trees:insert(Addr, Term, D1),
{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,[$,|Line],D} when N > 1 ->
- parse_tuple(N-1, Line, Addr, BinAddrAdj, D, [Term|Acc]);
+ parse_tuple(N-1, Line, Addr, DecodeOpts, D, [Term|Acc]);
{Term,Line,D}->
- parse_tuple(N-1, Line, Addr, BinAddrAdj, D, [Term|Acc])
+ parse_tuple(N-1, Line, Addr, DecodeOpts, D, [Term|Acc])
end.
zip_tuples(0, _T1, _T2, Acc) ->
@@ -2726,9 +2726,9 @@ flatten_hashmap_nodes_1(N, Tuple0, Acc0) ->
flatten_hashmap_nodes_1(tuple_size(Tuple), Tuple, Acc)
end.
-parse_term([$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([$I|Line0], _, D) -> %Small.
@@ -2745,11 +2745,11 @@ parse_term([$p|Line0], _, D) -> %Port.
parse_term([$S|Str0], _, D) -> %Information string.
Str = lists:reverse(skip_blanks(lists:reverse(Str0))),
{Str,[],D};
-parse_term([$D|Line0], _, D) -> %DistExternal
+parse_term([$D|Line0], DecodeOpts, D) -> %DistExternal
try
{AttabSize,":"++Line1} = get_hex(Line0),
{Attab, "E"++Line2} = parse_atom_translation_table(AttabSize, Line1, []),
- {Bin,Line3} = get_binary(Line2),
+ {Bin,Line3} = get_binary(Line2, DecodeOpts),
{try
erts_debug:dist_ext_to_term(Attab, Bin)
catch
@@ -2782,11 +2782,39 @@ parse_atom_translation_table(0, Line0, As) ->
parse_atom_translation_table(N, Line0, As) ->
{A, Line1, _} = parse_atom(Line0, []),
parse_atom_translation_table(N-1, Line1, [A|As]).
-
-
-deref_ptr(Ptr, Line, BinAddrAdj, D0) ->
- case gb_trees:lookup(Ptr, D0) of
+
+deref_ptr(Ptr, Line, DecodeOpts, D) ->
+ Lookup = fun(D0) ->
+ gb_trees:lookup(Ptr, D0)
+ end,
+ do_deref_ptr(Lookup, Line, DecodeOpts, D).
+
+deref_bin(Binp0, Offset, Sz, Line, DecodeOpts, D) ->
+ Binp = Binp0 bor DecodeOpts#dec_opts.bin_addr_adj,
+ Lookup = fun(D0) ->
+ lookup_binary(Binp, Offset, Sz, D0)
+ end,
+ do_deref_ptr(Lookup, Line, DecodeOpts, D).
+
+lookup_binary(Binp, Offset, Sz, D) ->
+ case lookup_binary_index(Binp) of
+ [{_,Start}] ->
+ Term = cdvbin(Offset, Sz, {'#CDVBin',Start}),
+ {value,Term};
+ [] ->
+ case gb_trees:lookup(Binp, D) of
+ {value,<<_:Offset/bytes,Sub:Sz/bytes,_/bytes>>} ->
+ {value,Sub};
+ {value,SymbolicBin} ->
+ {value,cdvbin(Offset, Sz, SymbolicBin)};
+ none ->
+ none
+ end
+ end.
+
+do_deref_ptr(Lookup, Line, DecodeOpts, D0) ->
+ case Lookup(D0) of
{value,Term} ->
{Term,Line,D0};
none ->
@@ -2798,11 +2826,11 @@ deref_ptr(Ptr, Line, BinAddrAdj, D0) ->
case bytes(Fd) of
"="++_ ->
put(fd, end_of_heap),
- deref_ptr(Ptr, Line, BinAddrAdj, D0);
+ do_deref_ptr(Lookup, Line, DecodeOpts, D0);
L ->
update_progress(length(L)+1),
- D = parse(L, BinAddrAdj, D0),
- deref_ptr(Ptr, Line, BinAddrAdj, D)
+ D = parse(L, DecodeOpts, D0),
+ do_deref_ptr(Lookup, Line, DecodeOpts, D)
end
end
end.
@@ -2865,36 +2893,80 @@ get_label([$:|Line], Acc) ->
get_label([H|T], Acc) ->
get_label(T, [H|Acc]).
-get_binary(Line0) ->
+get_binary(Line0,DecodeOpts) ->
case get_hex(Line0) of
{N,":"++Line} ->
- do_get_binary(N, Line, [], false);
+ get_binary_1(N, Line, DecodeOpts);
_ ->
{'#CDVTruncatedBinary',[]}
end.
-get_binary(Offset,Size,Line0) ->
+get_binary_1(N,Line,#dec_opts{base64=false}) ->
+ get_binary_hex(N, Line, [], false);
+get_binary_1(N,Line0,#dec_opts{base64=true}) ->
+ NumBytes = ((N+2) div 3) * 4,
+ {Base64,Line} = lists:split(NumBytes, Line0),
+ Bin = get_binary_base64(list_to_binary(Base64), <<>>, false),
+ {Bin,Line}.
+
+get_binary(Offset,Size,Line0,DecodeOpts) ->
case get_hex(Line0) of
{_N,":"++Line} ->
- Progress = Size>?binary_size_progress_limit,
- Progress andalso init_progress("Reading binary",Size),
- do_get_binary(Size, lists:sublist(Line,(Offset*2)+1,Size*2), [],
- Progress);
- _ ->
- {'#CDVTruncatedBinary',[]}
- end.
-
-do_get_binary(0, Line, Acc, Progress) ->
+ get_binary_1(Offset,Size,Line,DecodeOpts);
+ _ ->
+ {'#CDVTruncatedBinary',[]}
+ end.
+
+get_binary_1(Offset,Size,Line,#dec_opts{base64=false}) ->
+ Progress = Size > ?binary_size_progress_limit,
+ Progress andalso init_progress("Reading binary",Size),
+ get_binary_hex(Size, lists:sublist(Line,(Offset*2)+1,Size*2), [],
+ Progress);
+get_binary_1(StartOffset,Size,Line,#dec_opts{base64=true}) ->
+ Progress = Size > ?binary_size_progress_limit,
+ Progress andalso init_progress("Reading binary",Size),
+ EndOffset = StartOffset + Size,
+ StartByte = (StartOffset div 3) * 4,
+ EndByte = ((EndOffset + 2) div 3) * 4,
+ NumBytes = EndByte - StartByte,
+ case list_to_binary(Line) of
+ <<_:StartByte/bytes,Base64:NumBytes/bytes,_/bytes>> ->
+ Bin0 = get_binary_base64(Base64, <<>>, Progress),
+ Skip = StartOffset - (StartOffset div 3) * 3,
+ <<_:Skip/bytes,Bin:Size/bytes,_/bytes>> = Bin0,
+ {Bin,[]};
+ _ ->
+ {'#CDVTruncatedBinary',[]}
+ end.
+
+get_binary_hex(0, Line, Acc, Progress) ->
Progress andalso end_progress(),
{list_to_binary(lists:reverse(Acc)),Line};
-do_get_binary(N, [A,B|Line], Acc, Progress) ->
+get_binary_hex(N, [A,B|Line], Acc, Progress) ->
Byte = (get_hex_digit(A) bsl 4) bor get_hex_digit(B),
Progress andalso update_progress(),
- do_get_binary(N-1, Line, [Byte|Acc], Progress);
-do_get_binary(_N, [], _Acc, Progress) ->
+ get_binary_hex(N-1, Line, [Byte|Acc], Progress);
+get_binary_hex(_N, [], _Acc, Progress) ->
Progress andalso end_progress(),
{'#CDVTruncatedBinary',[]}.
+get_binary_base64(<<Chunk0:?base64_chunk_size/bytes,T/bytes>>,
+ Acc0, Progress) ->
+ Chunk = base64:decode(Chunk0),
+ Acc = <<Acc0/binary,Chunk/binary>>,
+ Progress andalso update_progress(?base64_chunk_size * 3 div 4),
+ get_binary_base64(T, Acc, Progress);
+get_binary_base64(Chunk0, Acc, Progress) ->
+ case Progress of
+ true ->
+ update_progress(?base64_chunk_size * 3 div 4),
+ end_progress();
+ false ->
+ ok
+ end,
+ Chunk = base64:decode(Chunk0),
+ <<Acc/binary,Chunk/binary>>.
+
cdvbin(Offset,Size,{'#CDVBin',Pos}) ->
['#CDVBin',Offset,Size,Pos];
cdvbin(Offset,Size,['#CDVBin',_,_,Pos]) ->
diff --git a/lib/observer/test/crashdump_helper.erl b/lib/observer/test/crashdump_helper.erl
index 41041682c2..bb1755f530 100644
--- a/lib/observer/test/crashdump_helper.erl
+++ b/lib/observer/test/crashdump_helper.erl
@@ -21,7 +21,7 @@
-module(crashdump_helper).
-export([n1_proc/2,remote_proc/2,
dump_maps/0,create_maps/0,
- create_binaries/0]).
+ create_binaries/0,create_sub_binaries/1]).
-compile(r18).
-include_lib("common_test/include/ct.hrl").
@@ -64,6 +64,7 @@ n1_proc(Creator,_N2,Pid2,Port2,_L) ->
put(bin,Bin),
put(bins,create_binaries()),
put(sub_bin,SubBin),
+ put(sub_bins,create_sub_binaries(get(bins))),
put(bignum,83974938738373873),
put(neg_bignum,-38748762783736367),
put(ext_pid,Pid2),
@@ -104,6 +105,17 @@ create_binaries() ->
<<Data:Size/unit:8>>
end || Size <- Sizes].
+create_sub_binaries(Bins) ->
+ [create_sub_binary(Bin, Start, LenSub) ||
+ Bin <- Bins,
+ Start <- [0,1,2,3,4,5,10,22],
+ LenSub <- [0,1,2,3,4,6,9]].
+
+create_sub_binary(Bin, Start, LenSub) ->
+ Len = byte_size(Bin) - LenSub - Start,
+ <<_:Start/bytes,Sub:Len/bytes,_/bytes>> = Bin,
+ Sub.
+
%%%
%%% Test dumping of maps. Dumping of maps only from OTP 20.2.
%%%
diff --git a/lib/observer/test/crashdump_viewer_SUITE.erl b/lib/observer/test/crashdump_viewer_SUITE.erl
index 29b9e406ae..9fbd1a62a4 100644
--- a/lib/observer/test/crashdump_viewer_SUITE.erl
+++ b/lib/observer/test/crashdump_viewer_SUITE.erl
@@ -403,6 +403,10 @@ special(File,Procs) ->
verify_binaries(Binaries, proplists:get_value(bins,Dict)),
io:format(" binaries ok",[]),
+ SubBinaries = crashdump_helper:create_sub_binaries(Binaries),
+ verify_binaries(SubBinaries, proplists:get_value(sub_bins,Dict)),
+ io:format(" sub binaries ok",[]),
+
#proc{last_calls=LastCalls} = ProcDetails,
true = length(LastCalls) =< 4,
@@ -461,7 +465,9 @@ special(File,Procs) ->
%% 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),
+ %%WarnIncompleteHeap = ["WARNING: This process has an incomplete heap. Some information might be missing."],
+ {ok,ProcDetails=#proc{},[]} =
+ crashdump_viewer:proc_details(Pid),
io:format(" process details ok",[]),
#proc{dict=Dict} = ProcDetails,
@@ -668,7 +674,7 @@ truncate_dump(File) ->
end,
%% Split after "our binary" created by crashdump_helper
%% (it may not be the first binary).
- RE = <<"\n=binary:(?=[0-9A-Z]+",NewLine/binary,"FF:010203)">>,
+ RE = <<"\n=binary:(?=[0-9A-Z]+",NewLine/binary,"FF:AQID)">>,
[StartBin,AfterTag] = re:split(Bin,RE,[{parts,2}]),
[AddrAndSize,BinaryAndRest] = binary:split(AfterTag,Colon),
[Binary,_Rest] = binary:split(BinaryAndRest,NewLine),