Add ability to query if a file is a legitimate ELF shared object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10193 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/FileUtilities.cpp b/lib/Support/FileUtilities.cpp
index cde2889..02541d9 100644
--- a/lib/Support/FileUtilities.cpp
+++ b/lib/Support/FileUtilities.cpp
@@ -52,6 +52,16 @@
return CheckMagic (FN, "llvm");
}
+/// IsSharedObject - Returns trus IFF the file named FN appears to be a shared
+/// object with an ELF header. The file named FN must exist.
+///
+bool IsSharedObject(const std::string &FN) {
+ // Inspect the beginning of the file to see if it contains the LLVM
+ // bytecode format magic string.
+ static const char elfMagic[] = { 0x7f, 'E', 'L', 'F', '\0' };
+ return CheckMagic(FN, elfMagic);
+}
+
/// FileOpenable - Returns true IFF Filename names an existing regular
/// file which we can successfully open.
///