rustc: Add a binding to LLVM's object file reader. Until it's sent upstream, add an explicit "support" library for our LLVM extensions.

1 files changed, 55 insertions, 0 deletions

diff --git a/src/support/Object.cpp b/src/support/Object.cpp
new file mode 100644
index 00000000..f390870f
--- /dev/null
+++ b/src/support/Object.cpp
@@ -0,0 +1,55 @@
+//===- Object.cpp - C bindings to the object file library--------*- 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 bindings to the file-format-independent object
+// library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/ObjectFile.h"
+#include "llvm-c/Object.h"
+
+using namespace llvm;
+using namespace object;
+
+LLVMObjectFileRef LLVMCreateObjectFile(const char *ObjectPath) {
+  StringRef SR(ObjectPath);
+  return wrap(ObjectFile::createObjectFile(SR));
+}
+
+void LLVMDisposeObjectFile(LLVMObjectFileRef ObjectFile) {
+  delete unwrap(ObjectFile);
+}
+
+LLVMSectionIteratorRef LLVMGetSections(LLVMObjectFileRef ObjectFile) {
+  ObjectFile::section_iterator SI = unwrap(ObjectFile)->begin_sections();
+  return wrap(new ObjectFile::section_iterator(SI));
+}
+
+void LLVMDisposeSectionIterator(LLVMSectionIteratorRef SI) {
+  delete unwrap(SI);
+}
+
+void LLVMMoveToNextSection(LLVMSectionIteratorRef SI) {
+  ObjectFile::section_iterator UnwrappedSI = *unwrap(SI);
+  ++UnwrappedSI;
+}
+
+const char *LLVMGetSectionName(LLVMSectionIteratorRef SI) {
+  return (*unwrap(SI))->getName().data();
+}
+
+uint64_t LLVMGetSectionSize(LLVMSectionIteratorRef SI) {
+  return (*unwrap(SI))->getSize();
+}
+
+const char *LLVMGetSectionContents(LLVMSectionIteratorRef SI) {
+  return (*unwrap(SI))->getContents().data();
+}
+