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|
(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* Bernhard Schommer, AbsInt Angewandte Informatik GmbH *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
open Clflags
open Commandline
open Driveraux
(* Linking *)
let linker exe_name files =
Diagnostics.raise_on_errors ();
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
end
let gnu_linker_help =
{| -nodefaultlibs Do not use the standard system libraries when
linking
-nostdlib Do not use the standard system startup files or
libraries when linking
|}
let linker_help =
{|Linking options:
-l<lib> Link library <lib>
-L<dir> Add <dir> to search path for libraries
-nostartfiles Do not use the standard system startup files when
linking
|} ^
(if Configuration.gnu_toolchain then gnu_linker_help else "") ^
{| -s Remove all symbol table and relocation information from the
executable
-static Prevent linking with the shared libraries
-T <file> Use <file> as linker command file
-Wl,<opt> Pass option <opt> to the linker
-WUl,<opt> Pass option <opt> to the gcc or dcc used for linking
-Xlinker <opt> Pass <opt> as an option to the linker
-u <symb> Pretend the symbol <symb> is undefined to force linking of
library modules to define it.
|}
let linker_actions =
[ Prefix "-l", Self push_linker_arg;
Prefix "-L", Self push_linker_arg;
Exact "-nostartfiles", Self (fun s ->
if Configuration.gnu_toolchain then
push_linker_arg s
else
push_linker_arg "-Ws")
] @
(if Configuration.gnu_toolchain then
[ Exact "-nodefaultlibs", Self push_linker_arg;
Exact "-nostdlib", Self push_linker_arg;]
else []) @
[ Exact "-s", Self push_linker_arg;
Exact "-static", Self push_linker_arg;
Exact "-T", String (fun s -> if Configuration.gnu_toolchain then begin
push_linker_arg ("-T");
push_linker_arg(s)
end else
push_linker_arg ("-Wm"^s));
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", String (fun s -> push_linker_arg "-u"; push_linker_arg s);]
|
