[llvm-commits] [llvm] r114032 - in /llvm/trunk: include/llvm/System/Path.h lib/System/Path.cpp
Michael J. Spencer
bigcheesegs at gmail.com
Wed Sep 15 15:45:46 PDT 2010
Author: mspencer
Date: Wed Sep 15 17:45:45 2010
New Revision: 114032
URL: http://llvm.org/viewvc/llvm-project?rev=114032&view=rev
Log:
System/Path: Add isObjectFile().
Modified:
llvm/trunk/include/llvm/System/Path.h
llvm/trunk/lib/System/Path.cpp
Modified: llvm/trunk/include/llvm/System/Path.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/System/Path.h?rev=114032&r1=114031&r2=114032&view=diff
==============================================================================
--- llvm/trunk/include/llvm/System/Path.h (original)
+++ llvm/trunk/include/llvm/System/Path.h Wed Sep 15 17:45:45 2010
@@ -342,6 +342,17 @@
/// @brief Determine if the path references a dynamic library.
bool isDynamicLibrary() const;
+ /// This function determines if the path name in the object references a
+ /// native object file by looking at it's magic number. The term object
+ /// file is defined as "an organized collection of separate, named
+ /// sequences of binary data." This covers the obvious file formats such as
+ /// COFF and ELF, but it also includes llvm ir bitcode, archives,
+ /// libraries, etc...
+ /// @returns true if the file starts with the magic number for an object
+ /// file.
+ /// @brief Determine if the path references an object file.
+ bool isObjectFile() const;
+
/// This function determines if the path name references an existing file
/// or directory in the file system.
/// @returns true if the pathname references an existing file or
Modified: llvm/trunk/lib/System/Path.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/Path.cpp?rev=114032&r1=114031&r2=114032&view=diff
==============================================================================
--- llvm/trunk/lib/System/Path.cpp (original)
+++ llvm/trunk/lib/System/Path.cpp Wed Sep 15 17:45:45 2010
@@ -156,6 +156,20 @@
return false;
}
+bool
+Path::isObjectFile() const {
+ std::string Magic;
+ if (getMagicNumber(Magic, 64))
+ if (IdentifyFileType(Magic.c_str(),
+ static_cast<unsigned>(Magic.length()))
+ != Unknown_FileType) {
+ // Everything in LLVMFileType is currently an object file.
+ return true;
+ }
+
+ return false;
+}
+
Path
Path::FindLibrary(std::string& name) {
std::vector<sys::Path> LibPaths;
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