diff options
Diffstat (limited to 'driver/Driver.ml')
| -rw-r--r-- | driver/Driver.ml | 171 |
1 files changed, 45 insertions, 126 deletions
diff --git a/driver/Driver.ml b/driver/Driver.ml index b8c92d6c..7311215d 100644 --- a/driver/Driver.ml +++ b/driver/Driver.ml @@ -16,6 +16,8 @@ open Clflags open Timing open Driveraux open Frontend +open Assembler +open Linker let dump_options = ref false @@ -108,40 +110,6 @@ let compile_cminor_file ifile ofile = ifile msg; exit 2 -(* From asm to object file *) - -let assemble ifile ofile = - let cmd = List.concat [ - Configuration.asm; - ["-o"; ofile]; - List.rev !assembler_options; - [ifile] - ] in - let exc = command cmd in - if exc <> 0 then begin - safe_remove ofile; - command_error "assembler" exc; - exit 2 - end - -(* Linking *) - -let linker exe_name files = - let cmd = List.concat [ - Configuration.linker; - ["-o"; exe_name]; - files; - (if Configuration.has_runtime_lib - then ["-L" ^ !stdlib_path; "-lcompcert"] - else []) - ] in - let exc = command cmd in - if exc <> 0 then begin - command_error "linker" exc; - exit 2 - end - - (* Processing of a .c file *) let process_c_file sourcename = @@ -271,28 +239,33 @@ let process_h_file sourcename = exit 2 end -(* Record actions to be performed after parsing the command line *) - -let actions : ((string -> string) * string) list ref = ref [] - -let push_action fn arg = - actions := (fn, arg) :: !actions - -let push_linker_arg arg = - push_action (fun s -> s) arg - -let perform_actions () = - let rec perform = function - | [] -> [] - | (fn, arg) :: rem -> let res = fn arg in res :: perform rem - in perform (List.rev !actions) - let version_string = if Version.buildnr <> "" && Version.tag <> "" then sprintf "The CompCert C verified compiler, %s, Build: %s, Tag: %s\n" Version.version Version.buildnr Version.tag else "The CompCert C verified compiler, version "^ Version.version ^ "\n" +let gnu_system = Configuration.system <> "diab" + +let gnu_debugging_help = +" -gdwarf- Generate debug information in DWARF v2 or DWARF v3\n" + +let debugging_help = +"Debugging options:\n\ +\ -g Generate debugging information\n\ +\ -gdepth <n> Control generation of debugging information\n\ +\ (<n>=0: none, <n>=1: only-globals, <n>=2: globals + locals\n\ +\ without locations, <n>=3: full;)\n" +^ (if gnu_system then gnu_debugging_help else "")^ +" -frename-static Rename static functions and declarations\n" + +let target_help = if Configuration.arch = "arm" then +"Target processor options:\n\ +\ -mthumb Use Thumb2 instruction encoding\n\ +\ -marm Use classic ARM instruction encoding\n" +else + "" + let usage_string = version_string ^ "Usage: ccomp [options] <source files>\n\ @@ -321,15 +294,9 @@ Processing options:\n\ \ -fpacked-structs Emulate packed structs [off]\n\ \ -finline-asm Support inline 'asm' statements [off]\n\ \ -fall Activate all language support options above\n\ -\ -fnone Turn off all language support options above\n\ -Debugging options:\n\ -\ -g Generate debugging information\n\ -\ -gdwarf- (GCC only) Generate debug information in DWARF v2 or DWARF v3\n\ -\ -gdepth <n> Control generation of debugging information\n\ -\ (<n>=0: none, <n>=1: only-globals, <n>=2: globals + locals\n\ -\ without locations, <n>=3: full;)\n\ -\ -frename-static Rename static functions and declarations\n\ -Optimization options: (use -fno-<opt> to turn off -f<opt>)\n\ +\ -fnone Turn off all language support options above\n" ^ + debugging_help ^ +"Optimization options: (use -fno-<opt> to turn off -f<opt>)\n\ \ -O Optimize the compiled code [on by default]\n\ \ -O0 Do not optimize the compiled code\n\ \ -O1 -O2 -O3 Synonymous for -O\n\ @@ -346,32 +313,11 @@ Code generation options: (use -fno-<opt> to turn off -f<opt>)\n\ \ -fsmall-const <n> Set maximal size <n> for allocation in small constant area\n\ \ -falign-functions <n> Set alignment (in bytes) of function entry points\n\ \ -falign-branch-targets <n> Set alignment (in bytes) of branch targets\n\ -\ -falign-cond-branches <n> Set alignment (in bytes) of conditional branches\n\ -Target processor options:\n\ -\ -mthumb (ARM only) Use Thumb2 instruction encoding\n\ -\ -marm (ARM only) Use classic ARM instruction encoding\n\ -Assembling options:\n\ -\ -Wa,<opt> Pass option <opt> to the assembler\n\ -\ -Xassembler <opt> Pass <opt> as an option to the assembler\n\ -Linking options:\n\ -\ -l<lib> Link library <lib>\n\ -\ -L<dir> Add <dir> to search path for libraries\n\ -\ -nostartfiles (GCC only) Do not use the standard system startup files when\n\ -\ linking\n\ -\ -nodefaultlibs (GCC only) Do not use the standard system libraries when\n\ -\ linking\n\ -\ -nostdlib (GCC only) Do not use the standard system startup files or\n\ -\ libraries when linking\n\ -\ -s Remove all symbol table and relocation information from the\n\ -\ executable\n\ -\ -static Prevent linking with the shared libraries\n\ -\ -T <file> Use <file> as linker command file\n\ -\ -Wl,<opt> Pass option <opt> to the linker\n\ -\ -WUl,<opt> (GCC only) Pass option <opt> to the gcc used for linking\n\ -\ -Xlinker <opt> Pass <opt> as an option to the linker\n\ -\ -u <symb> Pretend the symbol <symb> is undefined to force linking of\n\ -\ library modules to define it.\n\ -Tracing options:\n\ +\ -falign-cond-branches <n> Set alignment (in bytes) of conditional branches\n" ^ + target_help ^ + assembler_help ^ + linker_help ^ +"Tracing options:\n\ \ -dprepro Save C file after preprocessing in <file>.i\n\ \ -dparse Save C file after parsing and elaboration in <file>.parsed.c\n\ \ -dc Save generated Compcert C in <file>.compcert.c\n\ @@ -414,10 +360,6 @@ let optimization_options = [ let set_all opts = List.iter (fun r -> r := true) opts let unset_all opts = List.iter (fun r -> r := false) opts -let gnu_linker_opt s = - if gnu_option s then - push_linker_arg s - let num_source_files = ref 0 let num_input_files = ref 0 @@ -446,12 +388,13 @@ let cmdline_actions = Exact "-fnone", Self (fun _ -> unset_all language_support_options); (* Debugging options *) Exact "-g", Self (fun s -> option_g := true; - option_gdwarf := 3); - Exact "-gdwarf-2", Self (fun s -> option_g:=true; + option_gdwarf := 3);] @ + (if gnu_system then + [ Exact "-gdwarf-2", Self (fun s -> option_g:=true; option_gdwarf := 2); Exact "-gdwarf-3", Self (fun s -> option_g := true; - option_gdwarf := 3); - Exact "-frename-static", Self (fun s -> option_rename_static:= true); + option_gdwarf := 3);] else []) @ + [ Exact "-frename-static", Self (fun s -> option_rename_static:= true); Exact "-gdepth", Integer (fun n -> if n = 0 || n <0 then begin option_g := false end else begin @@ -471,41 +414,17 @@ let cmdline_actions = Exact "-falign-cond-branches", Integer(fun n -> option_faligncondbranchs := n); (* Target processor options *) Exact "-conf", String (fun _ -> ()); (* Ignore option since it is already handled *) - Exact "-target", String (fun _ -> ()); (* Ignore option since it is already handled *) - Exact "-mthumb", Set option_mthumb; - Exact "-marm", Unset option_mthumb; + Exact "-target", String (fun _ -> ());] @ (* Ignore option since it is already handled *) + (if Configuration.arch = "arm" then + [ Exact "-mthumb", Set option_mthumb; + Exact "-marm", Unset option_mthumb; ] + else []) @ (* Assembling options *) - Prefix "-Wa,", Self (fun s -> if Configuration.system = "diab" then - assembler_options := List.rev_append (explode_comma_option s) !assembler_options - else - assembler_options := s :: !assembler_options); - Exact "-Xassembler", String (fun s -> if Configuration.system = "diab" then - assembler_options := s::!assembler_options - else - assembler_options := s::"-Xassembler":: !assembler_options); + assembler_actions @ (* Linking options *) - Prefix "-l", Self push_linker_arg; - Prefix "-L", Self push_linker_arg; - Exact "-nostartfiles", Self gnu_linker_opt; - Exact "-nodefaultlibs", Self gnu_linker_opt; - Exact "-nostdlib", Self gnu_linker_opt; - Exact "-s", Self push_linker_arg; - Exact "-static", Self push_linker_arg; - Exact "-T", String (fun s -> if Configuration.system = "diab" then - push_linker_arg ("-Wm"^s) - else begin - push_linker_arg ("-T"); - push_linker_arg(s) - end); - Exact "-Xlinker", String (fun s -> if Configuration.system = "diab" then - push_linker_arg ("-Wl,"^s) - else - push_linker_arg s); - Prefix "-Wl,", Self push_linker_arg; - Prefix "-WUl,", Self (fun s -> List.iter push_linker_arg (explode_comma_option s)); - Exact "-u", Self push_linker_arg; + linker_actions @ (* Tracing options *) - Exact "-dprepro", Set option_dprepro; + [ Exact "-dprepro", Set option_dprepro; Exact "-dparse", Set option_dparse; Exact "-dc", Set option_dcmedium; Exact "-dclight", Set option_dclight; @@ -529,7 +448,7 @@ let cmdline_actions = Exact "-trace", Self (fun _ -> Interp.trace := 2); Exact "-random", Self (fun _ -> Interp.mode := Interp.Random); Exact "-all", Self (fun _ -> Interp.mode := Interp.All) - ] + ] (* -f options: come in -f and -fno- variants *) (* Language support options *) @ f_opt "longdouble" option_flongdouble |