%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
-module(beam_validator_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
init_per_testcase/2,end_per_testcase/2,
compiler_bug/1,stupid_but_valid/1,
xrange/1,yrange/1,stack/1,call_last/1,merge_undefined/1,
uninit/1,unsafe_catch/1,
dead_code/1,
overwrite_catchtag/1,overwrite_trytag/1,accessing_tags/1,bad_catch_try/1,
cons_guard/1,
freg_range/1,freg_uninit/1,freg_state/1,
bad_bin_match/1,bin_aligned/1,bad_dsetel/1,
state_after_fault_in_catch/1,no_exception_in_catch/1,
undef_label/1,illegal_instruction/1,failing_gc_guard_bif/1,
map_field_lists/1]).
-include_lib("test_server/include/test_server.hrl").
init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
Dog = test_server:timetrap(?t:minutes(10)),
[{watchdog,Dog}|Config].
end_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
Dog = ?config(watchdog, Config),
?t:timetrap_cancel(Dog),
ok.
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
test_lib:recompile(?MODULE),
[{group,p}].
groups() ->
[{p,test_lib:parallel(),
[compiler_bug,stupid_but_valid,xrange,
yrange,stack,call_last,merge_undefined,uninit,
unsafe_catch,dead_code,
overwrite_catchtag,overwrite_trytag,accessing_tags,
bad_catch_try,cons_guard,freg_range,freg_uninit,
freg_state,bad_bin_match,bin_aligned,bad_dsetel,
state_after_fault_in_catch,no_exception_in_catch,
undef_label,illegal_instruction,failing_gc_guard_bif,
map_field_lists]}].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
compiler_bug(Config) when is_list(Config) ->
%% Check that the compiler returns an error if we try to
%% assemble one of the bad '.S' files.
Data = ?config(data_dir, Config),
File = filename:join(Data, "compiler_bug"),
error = compile:file(File, [from_asm,report_errors,time]),
%% Make sure that the error was reported by
%% the beam_validator module.
{error,
[{"compiler_bug",
[{beam_validator,_}]}],
[]} = compile:file(File, [from_asm,return_errors,time]),
ok.
%% The following code is stupid but it should compile.
stupid_but_valid(Config) when is_list(Config) ->
AnAtom = nisse,
?line try setelement(5, setelement(6, AnAtom, value), another_value) of
Term -> ?line ?t:fail({what_happened,Term})
catch
error:badarg -> ok
end,
ok.
xrange(Config) when is_list(Config) ->
Errors = do_val(xrange, Config),
?line
[{{t,sum_1,2},
{{bif,'+',{f,0},[{x,-1},{x,1}],{x,0}},4,
{uninitialized_reg,{x,-1}}}},
{{t,sum_2,2},
{{bif,'+',{f,0},[{x,0},{x,1024}],{x,0}},4,
{uninitialized_reg,{x,1024}}}},
{{t,sum_3,2},
{{bif,'+',{f,0},[{x,0},{x,1}],{x,-1}},4,
{invalid_store,{x,-1},number}}},
{{t,sum_4,2},
{{bif,'+',{f,0},[{x,0},{x,1}],{x,1024}},4,limit}}] = Errors,
ok.
yrange(Config) when is_list(Config) ->
Errors = do_val(yrange, Config),
?line
[{{t,sum_1,2},
{{move,{x,1},{y,-1}},5,
{invalid_store,{y,-1},term}}},
{{t,sum_2,2},
{{bif,'+',{f,0},[{x,0},{y,1024}],{x,0}},7,
{uninitialized_reg,{y,1024}}}},
{{t,sum_3,2},
{{move,{x,1},{y,1024}},5,limit}},
{{t,sum_4,2},
{{move,{x,1},{y,-1}},5,
{invalid_store,{y,-1},term}}}] = Errors,
ok.
stack(Config) when is_list(Config) ->
Errors = do_val(stack, Config),
[{{t,a,2},{return,9,{stack_frame,2}}},
{{t,b,2},{{deallocate,2},4,{allocated,none}}},
{{t,bad_1,0},{{allocate_zero,2,10},4,{{x,9},not_live}}},
{{t,bad_2,0},{{move,{y,0},{x,0}},5,{unassigned,{y,0}}}},
{{t,c,2},{{deallocate,2},10,{allocated,none}}},
{{t,d,2},
{{allocate,2,2},5,{existing_stack_frame,{size,2}}}},
{{t,e,2},{{deallocate,5},6,{allocated,2}}}] = Errors,
ok.
call_last(Config) when is_list(Config) ->
Errors = do_val(call_last, Config),
[{{t,a,1},{{call_last,1,{f,8},2},9,{allocated,1}}},
{{t,b,1},
{{call_ext_last,2,{extfunc,lists,seq,2},2},
10,
{allocated,1}}}] = Errors,
ok.
merge_undefined(Config) when is_list(Config) ->
Errors = do_val(merge_undefined, Config),
[{{t,handle_call,2},
{{call_ext,2,{extfunc,debug,filter,2}},
22,
{uninitialized_reg,{y,0}}}}] = Errors,
ok.
uninit(Config) when is_list(Config) ->
Errors = do_val(uninit, Config),
?line
[{{t,sum_1,2},
{{move,{y,0},{x,0}},5,{uninitialized_reg,{y,0}}}},
{{t,sum_2,2},
{{call,1,{f,8}},5,{uninitialized_reg,{y,0}}}},
{{t,sum_3,2},
{{bif,'+',{f,0},[{x,0},{y,0}],{x,0}},
6,
{unassigned,{y,0}}}}] = Errors,
ok.
unsafe_catch(Config) when is_list(Config) ->
Errors = do_val(unsafe_catch, Config),
?line
[{{t,small,2},
{{bs_put_integer,{f,0},{integer,16},1,
{field_flags,[aligned,unsigned,big]},{y,0}},
20,
{unassigned,{y,0}}}}] = Errors,
ok.
dead_code(Config) when is_list(Config) ->
[] = do_val(dead_code, Config),
ok.
overwrite_catchtag(Config) when is_list(Config) ->
Errors = do_val(overwrite_catchtag, Config),
?line
[{{overwrite_catchtag,foo,1},
{{move,{x,0},{y,0}},6,{catchtag,_}}}] = Errors,
ok.
overwrite_trytag(Config) when is_list(Config) ->
Errors = do_val(overwrite_trytag, Config),
?line
[{{overwrite_trytag,foo,1},
{{kill,{y,2}},8,{trytag,_}}}] = Errors,
ok.
accessing_tags(Config) when is_list(Config) ->
Errors = do_val(accessing_tags, Config),
[{{accessing_tags,bar,1},
{{move,{y,0},{x,0}},6,{trytag,_}}},
{{accessing_tags,foo,1},
{{move,{y,0},{x,0}},6,{catchtag,_}}}] = Errors,
ok.
bad_catch_try(Config) when is_list(Config) ->
Errors = do_val(bad_catch_try, Config),
?line [{{bad_catch_try,bad_1,1},
{{'catch',{x,0},{f,3}},
5,{invalid_store,{x,0},{catchtag,[3]}}}},
{{bad_catch_try,bad_2,1},
{{catch_end,{x,9}},
8,{source_not_y_reg,{x,9}}}},
{{bad_catch_try,bad_3,1},
{{catch_end,{y,1}},9,{bad_type,{atom,kalle}}}},
{{bad_catch_try,bad_4,1},
{{'try',{x,0},{f,15}},5,{invalid_store,{x,0},{trytag,[15]}}}},
{{bad_catch_try,bad_5,1},
{{try_case,{y,1}},12,{bad_type,term}}},
{{bad_catch_try,bad_6,1},
{{try_end,{y,1}},8,{bad_type,{integer,1}}}}] = Errors,
ok.
cons_guard(Config) when is_list(Config) ->
Errors = do_val(cons, Config),
?line
[{{cons,foo,1},
{{get_list,{x,0},{x,1},{x,2}},
5,
{bad_type,{needed,cons},{actual,term}}}}] = Errors,
ok.
freg_range(Config) when is_list(Config) ->
Errors = do_val(freg_range, Config),
?line
[{{t,sum_1,2},
{{bif,fadd,{f,0},[{fr,-1},{fr,1}],{fr,0}},
5,
{bad_source,{fr,-1}}}},
{{t,sum_2,2},
{{bif,fadd,{f,0},[{fr,0},{fr,1024}],{fr,0}},
6,
{uninitialized_reg,{fr,1024}}}},
{{t,sum_3,2},
{{bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,-1}},
7,
{bad_target,{fr,-1}}}},
{{t,sum_4,2},
{{bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,1024}},
7,
limit}}] = Errors,
ok.
freg_uninit(Config) when is_list(Config) ->
Errors = do_val(freg_uninit, Config),
?line
[{{t,sum_1,2},
{{bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,0}},
6,
{uninitialized_reg,{fr,1}}}},
{{t,sum_2,2},
{{bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,0}},
9,
{uninitialized_reg,{fr,0}}}}] = Errors,
ok.
freg_state(Config) when is_list(Config) ->
Errors = do_val(freg_state, Config),
?line
[{{t,sum_1,2},
{{bif,fmul,{f,0},[{fr,0},{fr,1}],{fr,0}},
6,
{bad_floating_point_state,undefined}}},
{{t,sum_2,2},
{{fmove,{fr,0},{x,0}},
8,
{bad_floating_point_state,cleared}}},
{{t,sum_3,2},
{{bif,'-',{f,0},[{x,1},{x,0}],{x,1}},
8,
{unsafe_instruction,{float_error_state,cleared}}}},
{{t,sum_4,2},
{{fcheckerror,{f,0}},
4,
{bad_floating_point_state,undefined}}},
{{t,sum_5,2},
{fclearerror,5,{bad_floating_point_state,cleared}}}] = Errors,
ok.
bad_bin_match(Config) when is_list(Config) ->
[{{t,t,1},{return,5,{match_context,{x,0}}}}] =
do_val(bad_bin_match, Config),
ok.
bin_aligned(Config) when is_list(Config) ->
Errors = do_val(bin_aligned, Config),
?line
[{{t,decode,1},
{{bs_put_integer,{f,0},
{integer,5},
1,
{field_flags,[unsigned,big,aligned]},
{integer,0}},
10,
{aligned_flag_set,{bits,3}}}}] = Errors,
ok.
bad_dsetel(Config) when is_list(Config) ->
Errors = do_val(bad_dsetel, Config),
?line
[{{t,t,1},
{{set_tuple_element,{x,1},{x,0},1},
17,
illegal_context_for_set_tuple_element}}] = Errors,
ok.
state_after_fault_in_catch(Config) when is_list(Config) ->
Errors = do_val(state_after_fault_in_catch, Config),
[{{state_after_fault_in_catch,badmatch,1},
{{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}},
{{state_after_fault_in_catch,case_end,1},
{{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}},
{{state_after_fault_in_catch,if_end,1},
{{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}},
{{t,foo,1},
{{move,{x,1},{x,0}},10,{uninitialized_reg,{x,1}}}}] = Errors,
ok.
no_exception_in_catch(Config) when is_list(Config) ->
Errors = do_val(no_exception_in_catch, Config),
[{{no_exception_in_catch,nested_of_1,4},
{{move,{x,3},{x,0}},88,{uninitialized_reg,{x,3}}}}] = Errors,
ok.
undef_label(Config) when is_list(Config) ->
M = {undef_label,
[{t,1}],
[],
[{function,t,1,2,
[{label,1},
{func_info,{atom,undef_label},{atom,t},1},
{label,2},
{test,is_eq_exact,{f,42},[{x,0},{atom,x}]},
{move,{atom,ok},{x,0}},
return]},
{function,x,1,17,
[{label,3},
{func_info,{atom,undef_label},{atom,x},1},
{label,4},
return]}],
5},
Errors = beam_val(M),
[{{undef_label,t,1},{undef_labels,[42]}},
{{undef_label,x,1},{return,4,no_entry_label}}] = Errors,
ok.
illegal_instruction(Config) when is_list(Config) ->
M = {illegal_instruction,
[{t,1},{x,1},{y,0}],
[],
[{function,t,1,2,
[{label,1},
{func_info,{atom,illegal_instruction},{atom,t},1},
{label,2},
{my_illegal_instruction,{x,0}},
return]},
{function,x,1,4,
[{label,3},
bad_func_info,
{label,4},
{my_illegal_instruction,{x,0}},
return]},
{function,y,0,17,[]}],
5},
Errors = beam_val(M),
[{{illegal_instruction,t,1},
{{my_illegal_instruction,{x,0}},4,unknown_instruction}},
{{'_',x,1},{bad_func_info,1,illegal_instruction}},
{{'_',y,0},{[],0,illegal_instruction}}] = Errors,
ok.
%% The beam_validator used to assume that a GC guard BIF could
%% do a garbage collection even if it failed. That assumption
%% is not correct, and will cause the beam_validator to reject
%% valid programs such as this test case.
%%
%% (Thanks to Kiran Khaladkar.)
%%
failing_gc_guard_bif(Config) when is_list(Config) ->
?line ok = process_request(lists:seq(1, 36)),
?line error = process_request([]),
?line error = process_request(not_a_list),
ok.
process_request(ConfId) ->
case process_request_foo(ConfId) of
false ->
if
length(ConfId) == 36 ->
Response = ok;
true ->
Response = error
end
end,
process_request_bar(self(), [Response]).
process_request_foo(_) ->
false.
process_request_bar(Pid, [Response]) when is_pid(Pid) ->
Response.
map_field_lists(Config) ->
Errors = do_val(map_field_lists, Config),
[{{map_field_lists,x,1},
{{test,has_map_fields,{f,1},{x,0},
{list,[{atom,z},{atom,a}]}},
5,
not_strict_order}},
{{map_field_lists,y,1},
{{test,has_map_fields,{f,3},{x,0},{list,[]}},
5,
empty_field_list}}
] = Errors.
%%%-------------------------------------------------------------------------
do_val(Mod, Config) ->
Data = ?config(data_dir, Config),
Base = atom_to_list(Mod),
File = filename:join(Data, Base),
case compile:file(File, [from_asm,no_postopt,return_errors]) of
{error,L,[]} ->
[{Base,Errors0}] = L,
Errors = [E || {beam_validator,E} <- Errors0],
_ = [io:put_chars(beam_validator:format_error(E)) ||
E <- Errors],
Errors;
{ok,Mod} ->
[]
end.
beam_val(M) ->
Name = atom_to_list(element(1, M)),
{error,[{Name,Errors0}]} = beam_validator:module(M, []),
Errors = [E || {beam_validator,E} <- Errors0],
_ = [io:put_chars(beam_validator:format_error(E)) ||
E <- Errors],
Errors.
