diff options
Diffstat (limited to 'powerpc/Asmexpand.ml')
-rw-r--r-- | powerpc/Asmexpand.ml | 150 |
1 files changed, 144 insertions, 6 deletions
diff --git a/powerpc/Asmexpand.ml b/powerpc/Asmexpand.ml index fc0fc44e..5a365123 100644 --- a/powerpc/Asmexpand.ml +++ b/powerpc/Asmexpand.ml @@ -563,7 +563,7 @@ let num_crbit = function | CRbit_3 -> 3 | CRbit_6 -> 6 -let expand_instruction instr = +let expand_instruction_simple instr = match instr with | Pallocframe(sz, ofs,retofs) -> let variadic = (!current_function).fn_sig.sig_cc.cc_vararg in @@ -637,22 +637,160 @@ let expand_instruction instr = | _ -> emit instr -let expand_function fn = +(* Translate to the integer identifier of the register as + the EABI specifies *) + +let int_reg_to_dwarf = function + | GPR0 -> 0 | GPR1 -> 1 | GPR2 -> 2 | GPR3 -> 3 + | GPR4 -> 4 | GPR5 -> 5 | GPR6 -> 6 | GPR7 -> 7 + | GPR8 -> 8 | GPR9 -> 9 | GPR10 -> 10 | GPR11 -> 11 + | GPR12 -> 12 | GPR13 -> 13 | GPR14 -> 14 | GPR15 -> 15 + | GPR16 -> 16 | GPR17 -> 17 | GPR18 -> 18 | GPR19 -> 19 + | GPR20 -> 20 | GPR21 -> 21 | GPR22 -> 22 | GPR23 -> 23 + | GPR24 -> 24 | GPR25 -> 25 | GPR26 -> 26 | GPR27 -> 27 + | GPR28 -> 28 | GPR29 -> 29 | GPR30 -> 30 | GPR31 -> 31 + +let float_reg_to_dwarf = function + | FPR0 -> 32 | FPR1 -> 33 | FPR2 -> 34 | FPR3 -> 35 + | FPR4 -> 36 | FPR5 -> 37 | FPR6 -> 38 | FPR7 -> 39 + | FPR8 -> 40 | FPR9 -> 41 | FPR10 -> 42 | FPR11 -> 43 + | FPR12 -> 44 | FPR13 -> 45 | FPR14 -> 46 | FPR15 -> 47 + | FPR16 -> 48 | FPR17 -> 49 | FPR18 -> 50 | FPR19 -> 51 + | FPR20 -> 52 | FPR21 -> 53 | FPR22 -> 54| FPR23 -> 55 + | FPR24 -> 56 | FPR25 -> 57 | FPR26 -> 58 | FPR27 -> 59 + | FPR28 -> 60 | FPR29 -> 61 | FPR30 -> 62 | FPR31 -> 63 + +let preg_to_dwarf_int = function + | IR r -> int_reg_to_dwarf r + | FR r -> float_reg_to_dwarf r + | _ -> assert false + + +let translate_annot annot = + let rec aux = function + | BA x -> Some (BA (preg_to_dwarf_int x)) + | BA_int _ + | BA_long _ + | BA_float _ + | BA_single _ + | BA_loadglobal _ + | BA_addrglobal _ + | BA_loadstack _ -> None + | BA_addrstack ofs -> Some (BA_addrstack ofs) + | BA_splitlong (hi,lo) -> + begin + match (aux hi,aux lo) with + | Some hi ,Some lo -> Some (BA_splitlong (hi,lo)) + | _,_ -> None + end in + (match annot with + | [] -> None + | a::_ -> aux a) + +let expand_scope id lbl oldscopes newscopes = + let opening = List.filter (fun a -> not (List.mem a oldscopes)) newscopes + and closing = List.filter (fun a -> not (List.mem a newscopes)) oldscopes in + List.iter (fun i -> Debug.open_scope id i lbl) opening; + List.iter (fun i -> Debug.close_scope id i lbl) closing + +let expand_instruction id l = + let get_lbl = function + | None -> + let lbl = new_label () in + emit (Plabel lbl); + lbl + | Some lbl -> lbl in + let rec aux lbl scopes = function + | [] -> let lbl = get_lbl lbl in + Debug.function_end id lbl + | (Pbuiltin(EF_debug (kind,txt,_x),args,_) as i)::rest -> + let kind = (P.to_int kind) in + emit i; + begin + match kind with + | 1-> + aux lbl scopes rest + | 2 -> + aux lbl scopes rest + | 3 -> + begin + match translate_annot args with + | Some a -> + let lbl = get_lbl lbl in + Debug.start_live_range txt lbl (1,a); + aux (Some lbl) scopes rest + | None -> aux lbl scopes rest + end + | 4 -> + let lbl = get_lbl lbl in + Debug.end_live_range txt lbl; + aux (Some lbl) scopes rest + | 5 -> + begin + match translate_annot args with + | Some a-> + Debug.stack_variable txt (1,a); + aux lbl scopes rest + | _ -> aux lbl scopes rest + end + | 6 -> + let lbl = get_lbl lbl in + let scopes' = List.map (function BA_int x -> Int32.to_int (camlint_of_coqint x) | _ -> assert false) args in + expand_scope id lbl scopes scopes'; + aux (Some lbl) scopes' rest + | _ -> + aux None scopes rest + end + | i::rest -> expand_instruction_simple i; aux None scopes rest in + (* We need to move all closing debug annotations before the last real statement *) + let rec move_debug acc = function + | (Pbuiltin(EF_debug (kind,txt,_x),args,_) as i)::rest -> + move_debug (i::acc) rest (* Move the debug annotations forward *) + | b::rest -> List.rev (b::(List.rev acc)@rest) (* We found the first non debug location *) + | [] -> List.rev acc (* This actually can never happen *) in + aux None [] (move_debug [] (List.rev l)) + + +let expand_function id fn = try set_current_function fn; - List.iter expand_instruction fn.fn_code; + if !Clflags.option_g then + expand_instruction id fn.fn_code + else + List.iter expand_instruction_simple fn.fn_code; Errors.OK (get_current_function ()) with Error s -> Errors.Error (Errors.msg (coqstring_of_camlstring s)) -let expand_fundef = function +let expand_fundef id = function | Internal f -> - begin match expand_function f with + begin match expand_function id f with | Errors.OK tf -> Errors.OK (Internal tf) | Errors.Error msg -> Errors.Error msg end | External ef -> Errors.OK (External ef) +let rec transform_partial_prog transfun p = + match p with + | [] -> Errors.OK [] + | (id,Gvar v)::l -> + (match transform_partial_prog transfun l with + | Errors.OK x -> Errors.OK ((id,Gvar v)::x) + | Errors.Error msg -> Errors.Error msg) + | (id,Gfun f)::l -> + (match transfun id f with + | Errors.OK tf -> + (match transform_partial_prog transfun l with + | Errors.OK x -> Errors.OK ((id,Gfun tf)::x) + | Errors.Error msg -> Errors.Error msg) + | Errors.Error msg -> + Errors.Error ((Errors.MSG (coqstring_of_camlstring "In function"))::((Errors.CTX + id) :: (Errors.MSG (coqstring_of_camlstring ": ") :: msg)))) + let expand_program (p: Asm.program) : Asm.program Errors.res = - AST.transform_partial_program expand_fundef p + match transform_partial_prog expand_fundef p.prog_defs with + | Errors.OK x-> + Errors.OK { prog_defs = x; prog_public = p.prog_public; prog_main = + p.prog_main } + | Errors.Error msg -> Errors.Error msg |