[sledge] Use standard "libFuzzer" name

Summary:
Trivial renamings to use the standard "libFuzzer" name instead of "lib
fuzzer".

Reviewed By: kren1

Differential Revision: D16067881

fbshipit-source-id: 3ff2a8f86

sledge/sledge-help.txt

@@ -47,7 +47,7 @@ Analyze code in a buck target. This is a convenience wrapper for the sequence `s
 
   [-bound <int>]          stop execution exploration at depth <int>
   [-function-summaries]   use function summaries (in development)
-  [-lib-fuzzer]           add a harness for lib fuzzer binaries
+  [-fuzzer]               add a harness for libFuzzer targets
   [-llair-output <file>]  write generated LLAIR to <file>
   [-modules <file>]       write list of bitcode files to <file>, or to standard
                           output if <file> is `-`
@@ -85,7 +85,7 @@ Link code in a buck target to a single LLVM bitcode module. This also internaliz
 === flags ===
 
   -bitcode-output <file>  write linked bitcode to <file>
-  [-lib-fuzzer]           add a harness for lib fuzzer binaries
+  [-fuzzer]               add a harness for libFuzzer targets
   [-modules <file>]       write list of bitcode files to <file>, or to standard
                           output if <file> is `-`
   [-trace <spec>]         enable debug tracing
@@ -120,7 +120,7 @@ Analyze code in one or more LLVM bitcode files. This is a convenience wrapper fo
 
   [-bound <int>]          stop execution exploration at depth <int>
   [-function-summaries]   use function summaries (in development)
-  [-lib-fuzzer]           add a harness for lib fuzzer binaries
+  [-fuzzer]               add a harness for libFuzzer targets
   [-llair-output <file>]  write generated LLAIR to <file>
   [-skip-throw]           do not explore past throwing an exception
   [-trace <spec>]         enable debug tracing
@@ -138,7 +138,7 @@ Translate one or more LLVM bitcode files to LLAIR. Each <input> filename may be
 
 === flags ===
 
-  [-lib-fuzzer]           add a harness for lib fuzzer binaries
+  [-fuzzer]               add a harness for libFuzzer targets
   [-llair-output <file>]  write generated LLAIR to <file>
   [-trace <spec>]         enable debug tracing
   [-help]                 print this help text and exit

sledge/src/llair/frontend.ml

@@ -1395,8 +1395,8 @@ let link_in : Llvm.llcontext -> Llvm.lllinker -> string -> unit =
   |>
   [%Trace.retn fun {pf} _ -> pf ""]
 
-let translate : lib_fuzzer_harness:bool -> string list -> Llair.t =
- fun ~lib_fuzzer_harness inputs ->
+let translate ~fuzzer : string list -> Llair.t =
+ fun inputs ->
   [%Trace.call fun {pf} ->
     pf "%a" (List.pp "@ " Format.pp_print_string) inputs]
   ;
@@ -1409,7 +1409,7 @@ let translate : lib_fuzzer_harness:bool -> string list -> Llair.t =
     in
     Llvm_irreader.parse_ir llcontext model_memorybuffer
   in
-  ( if lib_fuzzer_harness then
+  ( if fuzzer then
     let lib_fuzzer_memorybuffer =
       Llvm.MemoryBuffer.of_string
         (Option.value_exn (Model.read "/lib_fuzzer_main.bc"))

sledge/src/llair/frontend.mli

@@ -9,6 +9,6 @@
 
 exception Invalid_llvm of string
 
-val translate : lib_fuzzer_harness:bool -> string list -> Llair.t
+val translate : fuzzer:bool -> string list -> Llair.t
 (** Translate the compilation units in the named (llvm or bitcode) files to
     LLAIR. Attempts to raise [Invalid_llvm] when the input is invalid LLVM. *)

sledge/src/sledge.ml

@@ -88,11 +88,11 @@ let translate =
   let%map_open llair_output =
     flag "llair-output" (optional string)
       ~doc:"<file> write generated LLAIR to <file>"
-  and lib_fuzzer_harness =
-    flag "lib-fuzzer" no_arg ~doc:"add a harness for lib fuzzer binaries"
+  and fuzzer =
+    flag "fuzzer" no_arg ~doc:"add a harness for libFuzzer targets"
   in
   fun bitcode_inputs () ->
-    let program = Frontend.translate ~lib_fuzzer_harness bitcode_inputs in
+    let program = Frontend.translate ~fuzzer bitcode_inputs in
     Option.iter ~f:(marshal program) llair_output ;
     program
 

sledge/src/sledge_buck.ml

@@ -141,12 +141,12 @@ let bitcode_files_of ~target =
   List.map ~f:(make_absolute (Lazy.force buck_root)) modules
 
 (* link and optimize the modules *)
-let llvm_link_opt ~lib_fuzzer_harness ~bitcode_output modules =
+let llvm_link_opt ~fuzzer ~bitcode_output modules =
   let context = context () in
-  let modules = if lib_fuzzer_harness then "-" :: modules else modules in
+  let modules = if fuzzer then "-" :: modules else modules in
   let open Process in
   eval ~context
-    ( ( if lib_fuzzer_harness then
+    ( ( if fuzzer then
         echo ~n:() (Option.value_exn (Model.read "/lib_fuzzer_main.bc"))
       else return () )
     |- run
@@ -219,11 +219,10 @@ let main ~(command : unit Command.basic_command) ~analyze =
       let%map_open bitcode_output =
         flag "bitcode-output" (required abs_path_arg)
           ~doc:"<file> write linked bitcode to <file>"
-      and lib_fuzzer_harness =
-        flag "lib-fuzzer" no_arg
-          ~doc:"add a harness for lib fuzzer binaries"
+      and fuzzer =
+        flag "fuzzer" no_arg ~doc:"add a harness for libFuzzer targets"
       in
-      fun () -> llvm_link_opt ~lib_fuzzer_harness ~bitcode_output
+      fun () -> llvm_link_opt ~fuzzer ~bitcode_output
     in
     let param = bitcode_inputs |**> link in
     command ~summary ~readme param