// This header file implements the operating system Path concept.
//
//===----------------------------------------------------------------------===//
+
#include "llvm/System/Path.h"
+#include "llvm/Config/config.h"
+#include <cassert>
namespace llvm {
-namespace sys {
+using namespace sys;
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only TRULY operating system
//=== independent code.
//===----------------------------------------------------------------------===//
-bool
-Path::is_valid() const {
- if ( empty() ) return false;
- return true;
+Path
+Path::GetLLVMConfigDir() {
+ Path result;
+#ifdef LLVM_ETCDIR
+ if (result.setDirectory(LLVM_ETCDIR))
+ return result;
+#endif
+ return GetLLVMDefaultConfigDir();
}
-void
-Path::fill( char* buffer, unsigned bufflen ) const {
- unsigned pathlen = length();
- assert( bufflen > pathlen && "Insufficient buffer size" );
- unsigned copylen = pathlen <? (bufflen - 1);
- this->copy(buffer, copylen, 0 );
- buffer[ copylen ] = 0;
+LLVMFileType
+sys::IdentifyFileType(const char*magic, unsigned length) {
+ assert(magic && "Invalid magic number string");
+ assert(length >=4 && "Invalid magic number length");
+ switch (magic[0]) {
+ case 'l':
+ if (magic[1] == 'l' && magic[2] == 'v') {
+ if (magic[3] == 'c')
+ return CompressedBytecodeFileType;
+ else if (magic[3] == 'm')
+ return BytecodeFileType;
+ }
+ break;
+
+ case '!':
+ if (length >= 8) {
+ if (memcmp(magic,"!<arch>\n",8) == 0)
+ return ArchiveFileType;
+ }
+ break;
+
+ default:
+ break;
+ }
+ return UnknownFileType;
}
-void
-Path::make_directory() {
- char end[2];
- end[0] = '/';
- end[1] = 0;
- if ( empty() )
- this->assign( end );
- else if ( (*this)[length()-1] != '/')
- this->append( end );
+bool
+Path::isArchive() const {
+ if (readable())
+ return hasMagicNumber("!<arch>\012");
+ return false;
}
-void
-Path::make_file() {
- if ( (*this)[length()-1] == '/')
- this->erase( this->length()-1, 1 );
+bool
+Path::isDynamicLibrary() const {
+ if (readable())
+ return hasMagicNumber("\177ELF");
+ return false;
}
-// Include the truly platform-specific parts of this class.
-#include "platform/Path.cpp"
+Path
+Path::FindLibrary(std::string& name) {
+ std::vector<sys::Path> LibPaths;
+ GetSystemLibraryPaths(LibPaths);
+ for (unsigned i = 0; i < LibPaths.size(); ++i) {
+ sys::Path FullPath(LibPaths[i]);
+ FullPath.appendFile("lib" + name + LTDL_SHLIB_EXT);
+ if (FullPath.isDynamicLibrary())
+ return FullPath;
+ FullPath.elideSuffix();
+ FullPath.appendSuffix("a");
+ if (FullPath.isArchive())
+ return FullPath;
+ }
+ return sys::Path();
}
+
+std::string
+Path::GetDLLSuffix() {
+ return LTDL_SHLIB_EXT;
+}
+
}
-// vim: sw=2
+// Include the truly platform-specific parts of this class.
+
+#if defined(LLVM_ON_UNIX)
+#include "Unix/Path.inc"
+#endif
+#if defined(LLVM_ON_WIN32)
+#include "Win32/Path.inc"
+#endif
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab