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authorBill Wendling <isanbard@gmail.com>2012-05-09 08:55:40 +0000
committerBill Wendling <isanbard@gmail.com>2012-05-09 08:55:40 +0000
commitf24fde20c8d6db5a52b50a010e831c9159d3fec7 (patch)
tree1ac4b1367d308b7ecb6b36e2b13c96d69577adbe
parentb12af898c317e64bba3ac1692073c812503e01c4 (diff)
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Supply a C interface to the "LinkModules" method.
Patch by Andrew Wilkins! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156469 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--include/llvm-c/Linker.h42
-rw-r--r--lib/Linker/LinkModules.cpp15
2 files changed, 57 insertions, 0 deletions
diff --git a/include/llvm-c/Linker.h b/include/llvm-c/Linker.h
new file mode 100644
index 0000000000..9f337cfba4
--- /dev/null
+++ b/include/llvm-c/Linker.h
@@ -0,0 +1,42 @@
+/*===-- llvm-c/Linker.h - Module Linker C Interface -------------*- C++ -*-===*\
+|* *|
+|* The LLVM Compiler Infrastructure *|
+|* *|
+|* This file is distributed under the University of Illinois Open Source *|
+|* License. See LICENSE.TXT for details. *|
+|* *|
+|*===----------------------------------------------------------------------===*|
+|* *|
+|* This file defines the C interface to the module/file/archive linker. *|
+|* *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef LLVM_C_LINKER_H
+#define LLVM_C_LINKER_H
+
+#include "llvm-c/Core.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+typedef enum {
+ LLVMLinkerDestroySource = 0, /* Allow source module to be destroyed. */
+ LLVMLinkerPreserveSource = 1 /* Preserve the source module. */
+} LLVMLinkerMode;
+
+
+/* Links the source module into the destination module, taking ownership
+ * of the source module away from the caller. Optionally returns a
+ * human-readable description of any errors that occurred in linking.
+ * OutMessage must be disposed with LLVMDisposeMessage. The return value
+ * is true if an error occurred, false otherwise. */
+LLVMBool LLVMLinkModules(LLVMModuleRef Dest, LLVMModuleRef Src,
+ LLVMLinkerMode Mode, char **OutMessage);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index 630289b2bd..7293f3d0e8 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -25,6 +25,7 @@
#include "llvm/Support/raw_ostream.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include "llvm/Transforms/Utils/ValueMapper.h"
+#include "llvm-c/Linker.h"
#include <cctype>
using namespace llvm;
@@ -1335,3 +1336,17 @@ bool Linker::LinkModules(Module *Dest, Module *Src, unsigned Mode,
return false;
}
+
+//===----------------------------------------------------------------------===//
+// C API.
+//===----------------------------------------------------------------------===//
+
+LLVMBool LLVMLinkModules(LLVMModuleRef Dest, LLVMModuleRef Src,
+ LLVMLinkerMode Mode, char **OutMessages) {
+ std::string Messages;
+ LLVMBool Result = Linker::LinkModules(unwrap(Dest), unwrap(Src),
+ Mode, OutMessages? &Messages : 0);
+ if (OutMessages)
+ *OutMessages = strdup(Messages.c_str());
+ return Result;
+}