//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This file implements stripping symbols out of symbol tables.
+// The StripSymbols transformation implements code stripping. Specifically, it
+// can delete:
+//
+// * names for virtual registers
+// * symbols for internal globals and functions
+// * debug information
//
-// Specifically, this allows you to strip all of the symbols out of:
-// * All functions in a module
-// * All non-essential symbols in a module (all function symbols + all module
-// scope symbols)
-// * Debug information.
-//
-// Notice that:
-// * This pass makes code much less readable, so it should only be used in
-// situations where the 'strip' utility would be used (such as reducing
-// code size, and making it harder to reverse engineer code).
+// Note that this transformation makes code much less readable, so it should
+// only be used in situations where the 'strip' utility would be used, such as
+// reducing code size or making it harder to reverse engineer code.
//
//===----------------------------------------------------------------------===//
class VISIBILITY_HIDDEN StripSymbols : public ModulePass {
bool OnlyDebugInfo;
public:
- static const int ID; // Pass identifcation, replacement for typeid
- StripSymbols(bool ODI = false)
+ static char ID; // Pass identification, replacement for typeid
+ explicit StripSymbols(bool ODI = false)
: ModulePass((intptr_t)&ID), OnlyDebugInfo(ODI) {}
virtual bool runOnModule(Module &M);
}
};
- const int StripSymbols::ID = 0;
+ char StripSymbols::ID = 0;
RegisterPass<StripSymbols> X("strip", "Strip all symbols from a module");
}