From 9d21ab16494b43872ab6a5a359ff2e327ed8486c Mon Sep 17 00:00:00 2001 From: "Richard W.M. Jones" Date: Tue, 29 May 2012 20:40:36 +0100 Subject: [PATCH 04/10] ocamlbyteinfo, ocamlplugininfo: Useful utilities from Debian, sent upstream. See: http://git.debian.org/?p=pkg-ocaml-maint/packages/ocaml.git;a=tree;f=debian/ocamlbyteinfo;hb=HEAD --- ocamlbyteinfo.ml | 101 +++++++++++++++++++++++++++++++++++++++++++++++++ ocamlplugininfo.ml | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 210 insertions(+) create mode 100644 ocamlbyteinfo.ml create mode 100644 ocamlplugininfo.ml diff --git a/ocamlbyteinfo.ml b/ocamlbyteinfo.ml new file mode 100644 index 0000000..eb9a293 --- /dev/null +++ b/ocamlbyteinfo.ml @@ -0,0 +1,101 @@ +(***********************************************************************) +(* *) +(* Objective Caml *) +(* *) +(* Xavier Leroy, projet Gallium, INRIA Rocquencourt *) +(* *) +(* Copyright 2009 Institut National de Recherche en Informatique et *) +(* en Automatique. All rights reserved. This file is distributed *) +(* under the terms of the GNU Library General Public License, with *) +(* the special exception on linking described in file ../../LICENSE. *) +(* *) +(***********************************************************************) + +(* $Id$ *) + +(* Dumps a bytecode binary file *) + +open Sys +open Dynlinkaux + +let input_stringlist ic len = + let get_string_list sect len = + let rec fold s e acc = + if e != len then + if sect.[e] = '\000' then + fold (e+1) (e+1) (String.sub sect s (e-s) :: acc) + else fold s (e+1) acc + else acc + in fold 0 0 [] + in + let sect = String.create len in + let _ = really_input ic sect 0 len in + get_string_list sect len + +let print = Printf.printf +let perr s = + Printf.eprintf "%s\n" s; + exit(1) +let p_title title = print "%s:\n" title + +let p_section title format pdata = function + | [] -> () + | l -> + p_title title; + List.iter + (fun (name, data) -> print format (pdata data) name) + l + +let p_list title format = function + | [] -> () + | l -> + p_title title; + List.iter + (fun name -> print format name) + l + +let _ = + try + let input_name = Sys.argv.(1) in + let ic = open_in_bin input_name in + Bytesections.read_toc ic; + List.iter + (fun section -> + try + let len = Bytesections.seek_section ic section in + if len > 0 then match section with + | "CRCS" -> + p_section + "Imported Units" + "\t%s\t%s\n" + Digest.to_hex + (input_value ic : (string * Digest.t) list) + | "DLLS" -> + p_list + "Used Dlls" "\t%s\n" + (input_stringlist ic len) + | "DLPT" -> + p_list + "Additional Dll paths" + "\t%s\n" + (input_stringlist ic len) + | "PRIM" -> + let prims = (input_stringlist ic len) in + print "Uses unsafe features: "; + begin match prims with + [] -> print "no\n" + | l -> print "YES\n"; + p_list "Primitives declared in this module" + "\t%s\n" + l + end + | _ -> () + with Not_found | Failure _ | Invalid_argument _ -> () + ) + ["CRCS"; "DLLS"; "DLPT"; "PRIM"]; + close_in ic + with + | Sys_error msg -> + perr msg + | Invalid_argument("index out of bounds") -> + perr (Printf.sprintf "Usage: %s filename" Sys.argv.(0)) diff --git a/ocamlplugininfo.ml b/ocamlplugininfo.ml new file mode 100644 index 0000000..e28800f --- /dev/null +++ b/ocamlplugininfo.ml @@ -0,0 +1,109 @@ +(***********************************************************************) +(* *) +(* Objective Caml *) +(* *) +(* Xavier Leroy, projet Gallium, INRIA Rocquencourt *) +(* *) +(* Copyright 2009 Institut National de Recherche en Informatique et *) +(* en Automatique. All rights reserved. This file is distributed *) +(* under the terms of the GNU Library General Public License, with *) +(* the special exception on linking described in file ../../LICENSE. *) +(* *) +(***********************************************************************) + +(* $Id$ *) + +(* Dumps a .cmxs file *) + +open Natdynlink +open Format + +let file = + try + Sys.argv.(1) + with _ -> begin + Printf.eprintf "Usage: %s file.cmxs\n" Sys.argv.(0); + exit(1) + end + +exception Abnormal_exit + +let error s e = + let eprint = Printf.eprintf in + let print_exc s = function + | End_of_file -> + eprint "%s: %s\n" s file + | Abnormal_exit -> + eprint "%s\n" s + | e -> eprint "%s\n" (Printexc.to_string e) + in + print_exc s e; + exit(1) + +let read_in command = + let cmd = Printf.sprintf command file in + let ic = Unix.open_process_in cmd in + try + let line = input_line ic in + begin match (Unix.close_process_in ic) with + | Unix.WEXITED 0 -> Str.split (Str.regexp "[ ]+") line + | Unix.WEXITED _ | Unix.WSIGNALED _ | Unix.WSTOPPED _ -> + error + (Printf.sprintf + "Command \"%s\" exited abnormally" + cmd + ) + Abnormal_exit + end + with e -> error "File is empty" e + +let get_offset adr_off adr_sec = + try + let adr = List.nth adr_off 4 in + let off = List.nth adr_off 5 in + let sec = List.hd adr_sec in + + let (!) x = Int64.of_string ("0x" ^ x) in + let (+) = Int64.add in + let (-) = Int64.sub in + + Int64.to_int (!off + !sec - !adr) + + with Failure _ | Invalid_argument _ -> + error + "Command output doesn't have the expected format" + Abnormal_exit + +let print_infos name crc defines cmi cmx = + let print_name_crc (name, crc) = + printf "@ %s (%s)" name (Digest.to_hex crc) + in + let pr_imports ppf imps = List.iter print_name_crc imps in + printf "Name: %s@." name; + printf "CRC of implementation: %s@." (Digest.to_hex crc); + printf "@[Globals defined:"; + List.iter (fun s -> printf "@ %s" s) defines; + printf "@]@."; + printf "@[Interfaces imported:%a@]@." pr_imports cmi; + printf "@[Implementations imported:%a@]@." pr_imports cmx + +let _ = + let adr_off = read_in "objdump -h %s | grep ' .data '" in + let adr_sec = read_in "objdump -T %s | grep ' caml_plugin_header$'" in + + let ic = open_in file in + let _ = seek_in ic (get_offset adr_off adr_sec) in + let header = (input_value ic : Natdynlink.dynheader) in + if header.magic <> Natdynlink.dyn_magic_number then + raise(Error(Natdynlink.Not_a_bytecode_file file)) + else begin + List.iter + (fun ui -> + print_infos + ui.name + ui.crc + ui.defines + ui.imports_cmi + ui.imports_cmx) + header.units + end -- 2.0.4