From fe14832ebff7b4ef1ec9ded348c77e8779098c36 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Sun, 24 Jan 2010 16:51:54 +0100 Subject: Teach the compiler the no_native option Implement the 'no_native' option to disable native-code compilation. If given in a module like this: -compile(no_native). it will override a 'native' option given on the command line. --- lib/compiler/src/compile.erl | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'lib/compiler') diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index 58e147d508..f0f962f3ef 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -717,7 +717,7 @@ read_beam_file(St) -> case file:read_file(St#compile.ifile) of {ok,Beam} -> Infile = St#compile.ifile, - case is_too_old(Infile) of + case no_native_compilation(Infile, St) of true -> {ok,St#compile{module=none,code=none}}; false -> @@ -730,12 +730,15 @@ read_beam_file(St) -> {error,St#compile{errors=St#compile.errors ++ Es}} end. -is_too_old(BeamFile) -> +no_native_compilation(BeamFile, #compile{options=Opts0}) -> case beam_lib:chunks(BeamFile, ["CInf"]) of {ok,{_,[{"CInf",Term0}]}} -> Term = binary_to_term(Term0), - Opts = proplists:get_value(options, Term, []), - lists:member(no_new_funs, Opts); + + %% Compiler options in the beam file will override + %% options passed to the compiler. + Opts = proplists:get_value(options, Term, []) ++ Opts0, + member(no_new_funs, Opts) orelse not is_native_enabled(Opts); _ -> false end. @@ -1046,7 +1049,14 @@ beam_asm(#compile{ifile=File,code=Code0,abstract_code=Abst,options=Opts0}=St) -> test_native(#compile{options=Opts}) -> %% This test is done late, in case some other option has turned off native. - member(native, Opts). + %% 'native' given on the command line can be overridden by + %% 'no_native' in the module itself. + is_native_enabled(Opts). + +is_native_enabled([native|_]) -> true; +is_native_enabled([no_native|_]) -> false; +is_native_enabled([H|T]) -> is_native_enabled(T); +is_native_enabled([]) -> false. native_compile(#compile{code=none}=St) -> {ok,St}; native_compile(St) -> -- cgit v1.2.3