[OCaml] Add an ocamlfind package llvm.all_backends.

This package is useful for architecture-independent tools like llc.

Patch by Jacques-Pascal Deplaix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207793 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 83 insertions, 1 deletions

diff --git a/bindings/ocaml/Makefile b/bindings/ocaml/Makefile
index 44562fe8db..b0e1f09fa5 100644
--- a/bindings/ocaml/Makefile
+++ b/bindings/ocaml/Makefile
@@ -9,7 +9,7 @@
 
 LEVEL := ../..
 DIRS = llvm bitreader bitwriter irreader analysis target executionengine \
-       transforms linker backends
+       transforms linker backends all_backends
 ExtraMakefiles = $(PROJ_OBJ_DIR)/Makefile.ocaml
 
 ocamldoc:
diff --git a/bindings/ocaml/all_backends/Makefile b/bindings/ocaml/all_backends/Makefile
new file mode 100644
index 0000000000..a5ff290fe7
--- /dev/null
+++ b/bindings/ocaml/all_backends/Makefile
@@ -0,0 +1,21 @@
+##===- bindings/ocaml/all_backends/Makefile ----------------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+#
+# This is the makefile for the Objective Caml Llvm_backends interface.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL := ../../..
+include $(LEVEL)/Makefile.config
+
+LIBRARYNAME := llvm_all_backends
+UsedComponents := $(TARGETS_TO_BUILD)
+UsedOcamlInterfaces :=
+
+include ../Makefile.ocaml
diff --git a/bindings/ocaml/all_backends/all_backends_ocaml.c b/bindings/ocaml/all_backends/all_backends_ocaml.c
new file mode 100644
index 0000000000..8fe7d9b5d5
--- /dev/null
+++ b/bindings/ocaml/all_backends/all_backends_ocaml.c
@@ -0,0 +1,32 @@
+/*===-- all_backends_ocaml.c - LLVM OCaml Glue ------------------*- C++ -*-===*\
+|*                                                                            *|
+|*                     The LLVM Compiler Infrastructure                       *|
+|*                                                                            *|
+|* This file is distributed under the University of Illinois Open Source      *|
+|* License. See LICENSE.TXT for details.                                      *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* This file glues LLVM's OCaml interface to its C interface. These functions *|
+|* are by and large transparent wrappers to the corresponding C functions.    *|
+|*                                                                            *|
+|* Note that these functions intentionally take liberties with the CAMLparamX *|
+|* macros, since most of the parameters are not GC heap objects.              *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#include "llvm-c/Target.h"
+#include "caml/alloc.h"
+#include "caml/fail.h"
+#include "caml/memory.h"
+#include "caml/custom.h"
+
+/* unit -> unit */
+CAMLprim value llvm_initialize_all(value Unit) {
+  LLVMInitializeAllTargetInfos();
+  LLVMInitializeAllTargets();
+  LLVMInitializeAllTargetMCs();
+  LLVMInitializeAllAsmPrinters();
+  LLVMInitializeAllAsmParsers();
+  return Val_unit;
+}
diff --git a/bindings/ocaml/all_backends/llvm_all_backends.ml b/bindings/ocaml/all_backends/llvm_all_backends.ml
new file mode 100644
index 0000000000..f4f4725707
--- /dev/null
+++ b/bindings/ocaml/all_backends/llvm_all_backends.ml
@@ -0,0 +1,10 @@
+(*===-- llvm_all_backends.ml - LLVM OCaml Interface -----------*- OCaml -*-===*
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ *===----------------------------------------------------------------------===*)
+
+external initialize : unit -> unit = "llvm_initialize_all"
diff --git a/bindings/ocaml/all_backends/llvm_all_backends.mli b/bindings/ocaml/all_backends/llvm_all_backends.mli
new file mode 100644
index 0000000000..1808544706
--- /dev/null
+++ b/bindings/ocaml/all_backends/llvm_all_backends.mli
@@ -0,0 +1,11 @@
+(*===-- llvm_all_backends.mli - LLVM OCaml Interface ----------*- OCaml -*-===*
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ *===----------------------------------------------------------------------===*)
+
+(** Initialize all the backends targets *)
+val initialize : unit -> unit
diff --git a/bindings/ocaml/llvm/META.llvm.in b/bindings/ocaml/llvm/META.llvm.in
index c241ea514c..edb84e0af0 100644
--- a/bindings/ocaml/llvm/META.llvm.in
+++ b/bindings/ocaml/llvm/META.llvm.in
@@ -93,3 +93,11 @@ package "linker" (
     archive(byte) = "llvm_linker.cma"
     archive(native) = "llvm_linker.cmxa"
 )
+
+package "all_backends" (
+    requires = "llvm"
+    version  = "@PACKAGE_VERSION@"
+    description = "All backends for LLVM"
+    archive(byte) = "llvm_all_backends.cma"
+    archive(native) = "llvm_all_backends.cmxa"
+)