aboutsummaryrefslogtreecommitdiffstats
path: root/driver/Linker.ml
diff options
context:
space:
mode:
Diffstat (limited to 'driver/Linker.ml')
-rw-r--r--driver/Linker.ml81
1 files changed, 81 insertions, 0 deletions
diff --git a/driver/Linker.ml b/driver/Linker.ml
new file mode 100644
index 00000000..501a2ae3
--- /dev/null
+++ b/driver/Linker.ml
@@ -0,0 +1,81 @@
+(* *********************************************************************)
+(* *)
+(* 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 =
+ 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
+
+
+let gnu_linker_help =
+" -nostartfiles Do not use the standard system startup files when\n\
+\ linking\n\
+\ -nodefaultlibs Do not use the standard system libraries when\n\
+\ linking\n\
+\ -nostdlib Do not use the standard system startup files or\n\
+\ libraries when linking\n"
+
+let linker_help =
+"Linking options:\n\
+\ -l<lib> Link library <lib>\n\
+\ -L<dir> Add <dir> to search path for libraries\n" ^
+ (if gnu_system then gnu_linker_help else "") ^
+" -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> Pass option <opt> to the gcc or dcc 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"
+
+let linker_actions =
+ [ Prefix "-l", Self push_linker_arg;
+ Prefix "-L", Self push_linker_arg; ] @
+ if gnu_system then
+ [ Exact "-nostartfiles", Self push_linker_arg;
+ 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 gnu_system 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", Self push_linker_arg;]