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|
open Compcert
let parse_c_file sourcename ifile =
(* Simplification options *)
let simplifs =
"b" (* blocks: mandatory *)
^ (if false then "s" else "")
^ (if false then "f" else "")
^ (if false then "p" else "")
in
(* Parsing and production of a simplified C AST *)
let ast = Parse.preprocessed_file simplifs sourcename ifile in
(* Conversion to Csyntax *)
let csyntax = Timing.time "CompCert C generation" C2C.convertProgram ast in
(* Save CompCert C AST if requested *)
PrintCsyntax.print_if csyntax;
csyntax
let compile_c_file sourcename ifile ofile =
(* Parse the ast *)
let csyntax = parse_c_file sourcename ifile in
(* Convert to Asm *)
let rtl =
match Compiler.apply_partial
(CoqUp.transf_frontend csyntax) with
| Errors.OK rtl ->
rtl
| Errors.Error msg ->
let loc = file_loc sourcename in
fatal_error loc "%a" print_error msg in
(* Print Asm in text form *)
let oc = open_out ofile in
PrintAsm.print_program oc asm;
close_out oc
let compile_i_file sourcename preproname =
if !option_interp then begin
Machine.config := Machine.compcert_interpreter !Machine.config;
let csyntax = parse_c_file sourcename preproname in
Interp.execute csyntax;
""
end else if !option_S then begin
compile_c_file sourcename preproname
(output_filename ~final:true sourcename ".c" ".s");
""
end else begin
let asmname =
if !option_dasm
then output_filename sourcename ".c" ".s"
else tmp_file ".s" in
compile_c_file sourcename preproname asmname;
let objname = object_filename sourcename ".c" in
assemble asmname objname;
objname
end
(* Processing of a .c file *)
let process_c_file sourcename =
ensure_inputfile_exists sourcename;
if !option_E then begin
preprocess sourcename (output_filename_default "-");
""
end else begin
let preproname = if !option_dprepro then
output_filename sourcename ".c" ".i"
else
tmp_file ".i" in
preprocess sourcename preproname;
compile_i_file sourcename preproname
end
let _ = print_endline "Hello world"
|
