[erlang-questions] OTP / HiPE broken with GCC 6.2

[Sverker Eriksson]

If this is x86_64 (amd64) then it looks like
the beam was built without gcc's default small code model
where "the program and its symbols must be linked
in the lower 2 GB of the address space."

The second argument to hipe_bifs:patch_call/2
should in this case be the address of a BIF,
but 94502719669968 is way past 2GB.

/Sverker, Erlang/OTP


On 11/02/2016 11:30 PM, Johannes Weißl wrote:
> Hi,
>
> Last week GCC got updated from 6.1.1 to 6.2.0 on my Debian laptop. Since then
> OTP releases built with this compiler have broken HiPE [1]. The error is
> reproducible on different machines, even the official OTP 19.1.5 Debian binary
> package is broken because it was built with the new compiler.
>
> Has anybody else experienced the same with GCC 6.2? I have not done much
> debugging, the error could be in GCC or OTP (maybe usage of undefined behavior).
>
> Regards,
> Johannes
>
> [1] Stacktrace after `c(my_module, [native]).` for any module:
>
> {'EXIT',{badarg,[{hipe_bifs,patch_call,
>                              [1103888528,94502719669968,[]],
>                              []},
>                   {hipe_unified_loader,patch_call_insn,3,
>                                        [{file,"hipe_unified_loader.erl"},{line,508}]},
>                   {hipe_unified_loader,patch_bif_call_list,4,
>                                        [{file,"hipe_unified_loader.erl"},{line,494}]},
>                   {hipe_unified_loader,patch_call,5,
>                                        [{file,"hipe_unified_loader.erl"},{line,485}]},
>                   {hipe_unified_loader,patch,5,
>                                        [{file,"hipe_unified_loader.erl"},{line,462}]},
>                   {hipe_unified_loader,load_common,4,
>                                        [{file,"hipe_unified_loader.erl"},{line,215}]},
>                   {hipe_unified_loader,load_native_code,3,
>                                        [{file,"hipe_unified_loader.erl"},{line,111}]},
>                   {code_server,try_load_module_2,6,
>                                [{file,"code_server.erl"},{line,1131}]}]}}
>
> Dialyzer fails with:
> Compiling some key modules to native code...{"init terminating in do_boot",{{badmatch,ok},[{dialyzer_cl,hc_cache,1,[{file,"dialyzer_cl.erl"},{line,572}]},{lists,foreach,2,[{file,"lists.erl"},{line,1338}]},{dialyzer_cl,hipe_compile,2,[{file,"dialyzer_cl.erl"},{line,516}]},{dialyzer_cl,do_analysis,4,[{file,"dialyzer_cl.erl"},{line,382}]},{dialyzer,'-cl/1-fun-0-',1,[{file,"dialyzer.erl"},{line,153}]},{dialyzer,doit,1,[{file,"dialyzer.erl"},{line,243}]},{dialyzer,plain_cl,0,[{file,"dialyzer.erl"},{line,84}]},{init,start_em,1,[]}]}}
>
> After the fix in https://github.com/erlang/otp/commit/cb987678ff56142029758e0e84fa97fa90003b4a:
>
> Compiling some key modules to native code...{"init terminating in do_boot",{{badmatch,{error,{'EXIT',{badarg,[{hipe_bifs,patch_call,[1075697819,94447304565728,[]],[]},{hipe_unified_loader,patch_call_insn,3,[{file,"hipe_unified_loader.erl"},{line,508}]},{hipe_unified_loader,patch_bif_call_list,4,[{file,"hipe_unified_loader.erl"},{line,494}]},{hipe_unified_loader,patch_call,5,[{file,"hipe_unified_loader.erl"},{line,485}]},{hipe_unified_loader,patch,5,[{file,"hipe_unified_loader.erl"},{line,460}]},{hipe_unified_loader,load_common,4,[{file,"hipe_unified_loader.erl"},{line,215}]},{hipe_unified_loader,load_native_code,3,[{file,"hipe_unified_loader.erl"},{line,111}]},{code_server,try_load_module_2,6,[{file,"code_server.erl"},{line,1131}]}]}}}},[{dialyzer_cl,hc_cache,1,[{file,"dialyzer_cl.erl"},{line,572}]},{lists,foreach,2,[{file,"lists.erl"},{line,1338}]},{dialyzer_cl,hipe_compile,2,[{file,"dialyzer_cl.erl"},{line,516}]},{dialyzer_cl,do_analysis,4,[{file,"dialyzer_cl.erl"},{line,38
>   2}]},{dialyzer,'-cl/1-fun-0-',1,[{file,"dialyzer.erl"},{line,153}]},{dialyzer,doit,1,[{file,"dialyzer.erl"},{line,243}]},{dialyzer,plain_cl,0,[{file,"dialyzer.erl"},{line,84}]},{init,start_em,1,[]}]}}
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