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-rw-r--r--driver/Driver.ml32
1 files changed, 30 insertions, 2 deletions
diff --git a/driver/Driver.ml b/driver/Driver.ml
index d22dd77c..ad7cf61e 100644
--- a/driver/Driver.ml
+++ b/driver/Driver.ml
@@ -265,6 +265,7 @@ let process_c_file sourcename =
let preproname = Filename.temp_file "compcert" ".i" in
preprocess sourcename preproname;
if !option_interp then begin
+ Machine.config := Machine.compcert_interpreter !Machine.config;
let csyntax = parse_c_file sourcename preproname in
safe_remove preproname;
Interp.execute csyntax;
@@ -409,6 +410,10 @@ Language support options (use -fno-<opt> to turn off -f<opt>) :
-fbitfields Emulate bit fields in structs [off]
-flongdouble Treat 'long double' as 'double' [off]
-fstruct-return Emulate returning structs and unions by value [off]
+ -fstruct-return=<convention>
+ Set the calling conventions used to return structs by value
+ -fstruct-passing=<convention>
+ Set the calling conventions used to pass structs by value
-fvararg-calls Support calls to variable-argument functions [on]
-funprototyped Support calls to old-style functions without prototypes [on]
-fpacked-structs Emulate packed structs [off]
@@ -550,7 +555,28 @@ let cmdline_actions =
Exact "-quiet", Self (fun _ -> Interp.trace := 0);
Exact "-trace", Self (fun _ -> Interp.trace := 2);
Exact "-random", Self (fun _ -> Interp.mode := Interp.Random);
- Exact "-all", Self (fun _ -> Interp.mode := Interp.All)
+ Exact "-all", Self (fun _ -> Interp.mode := Interp.All);
+(* Special -f options *)
+ Exact "-fstruct-passing=ref-callee",
+ Self (fun _ -> option_fstruct_passing_style := Configuration.SP_ref_callee);
+ Exact "-fstruct-passing=ref-caller",
+ Self (fun _ -> option_fstruct_return := true;
+ option_fstruct_passing_style := Configuration.SP_ref_caller);
+ Exact "-fstruct-passing=ints",
+ Self (fun _ -> option_fstruct_return := true;
+ option_fstruct_passing_style := Configuration.SP_split_args);
+ Exact "-fstruct-return=ref",
+ Self (fun _ -> option_fstruct_return := true;
+ option_fstruct_return_style := Configuration.SR_ref);
+ Exact "-fstruct-return=int1248",
+ Self (fun _ -> option_fstruct_return := true;
+ option_fstruct_return_style := Configuration.SR_int1248);
+ Exact "-fstruct-return=int1-4",
+ Self (fun _ -> option_fstruct_return := true;
+ option_fstruct_return_style := Configuration.SR_int1to4);
+ Exact "-fstruct-return=int1-8",
+ Self (fun _ -> option_fstruct_return := true;
+ option_fstruct_return_style := Configuration.SR_int1to8)
]
(* -f options: come in -f and -fno- variants *)
(* Language support options *)
@@ -607,7 +633,9 @@ let _ =
begin match Configuration.arch with
| "powerpc" -> Machine.ppc_32_bigendian
| "arm" -> Machine.arm_littleendian
- | "ia32" -> Machine.x86_32
+ | "ia32" -> if Configuration.abi = "macosx"
+ then Machine.x86_32_macosx
+ else Machine.x86_32
| _ -> assert false
end;
Builtins.set C2C.builtins;