68 lines
2 KiB
OCaml
68 lines
2 KiB
OCaml
let invalid_arg fmt = Format.ksprintf (fun s -> invalid_arg s) fmt
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let load_file filename =
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let ic = open_in_bin filename in
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let ln = in_channel_length ic in
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let rs = Bytes.create ln in
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let () = really_input ic rs 0 ln in
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Bytes.unsafe_to_string rs
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let sexp_linux = "(-lrt)"
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let sexp_freebsd = "()"
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let sexp_windows = "()"
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let sexp_mach = "()"
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let () =
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let system, output =
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try
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match Sys.argv with
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| [|_; "--system"; system; "-o"; output|] ->
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let system =
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match system with
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| "linux" | "elf" -> `Linux
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| "win32" | "win64" | "mingw64" | "mingw" | "cygwin" -> `Windows
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| "freebsd" -> `FreeBSD
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| "macosx" -> `MacOSX
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| "beos" | "dragonfly" | "bsd" | "openbsd" | "netbsd" | "gnu"
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| "solaris" | "unknown" ->
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invalid_arg "Unsupported system: %s" system
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| v ->
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if String.sub system 0 5 = "linux"
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then `Linux
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else invalid_arg "Invalid argument of system option: %s" v
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in
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(system, output)
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| _ -> invalid_arg "%s --system system -o <output>" Sys.argv.(0)
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with _ -> invalid_arg "%s --system system -o <output>" Sys.argv.(0)
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in
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let oc_ml, oc_c, oc_sexp =
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( open_out (output ^ ".ml")
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, open_out (output ^ "_stubs.c")
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, open_out (output ^ ".sexp") )
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in
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let ml, c, sexp =
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match system with
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| `Linux ->
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( load_file "clock_linux.ml"
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, load_file "clock_linux_stubs.c"
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, sexp_linux )
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| `FreeBSD ->
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( load_file "clock_linux.ml"
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, load_file "clock_linux_stubs.c"
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, sexp_freebsd )
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| `Windows ->
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( load_file "clock_windows.ml"
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, load_file "clock_windows_stubs.c"
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, sexp_windows )
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| `MacOSX ->
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(load_file "clock_mach.ml", load_file "clock_mach_stubs.c", sexp_mach)
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in
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Printf.fprintf oc_ml "%s%!" ml ;
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Printf.fprintf oc_c "%s%!" c ;
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Printf.fprintf oc_sexp "%s%!" sexp ;
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close_out oc_ml ;
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close_out oc_c ;
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close_out oc_sexp
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