1208599Srdivacky//===-- ModuleDebugInfoPrinter.cpp - Prints module debug info metadata ----===// 2208599Srdivacky// 3208599Srdivacky// The LLVM Compiler Infrastructure 4208599Srdivacky// 5208599Srdivacky// This file is distributed under the University of Illinois Open Source 6208599Srdivacky// License. See LICENSE.TXT for details. 7208599Srdivacky// 8208599Srdivacky//===----------------------------------------------------------------------===// 9208599Srdivacky// 10208599Srdivacky// This pass decodes the debug info metadata in a module and prints in a 11208599Srdivacky// (sufficiently-prepared-) human-readable form. 12208599Srdivacky// 13208599Srdivacky// For example, run this pass from opt along with the -analyze option, and 14208599Srdivacky// it'll print to standard output. 15208599Srdivacky// 16208599Srdivacky//===----------------------------------------------------------------------===// 17208599Srdivacky 18208599Srdivacky#include "llvm/Analysis/Passes.h" 19249423Sdim#include "llvm/ADT/Statistic.h" 20208599Srdivacky#include "llvm/Assembly/Writer.h" 21239462Sdim#include "llvm/DebugInfo.h" 22249423Sdim#include "llvm/IR/Function.h" 23208599Srdivacky#include "llvm/Pass.h" 24208599Srdivacky#include "llvm/Support/ErrorHandling.h" 25208599Srdivacky#include "llvm/Support/raw_ostream.h" 26208599Srdivackyusing namespace llvm; 27208599Srdivacky 28208599Srdivackynamespace { 29208599Srdivacky class ModuleDebugInfoPrinter : public ModulePass { 30208599Srdivacky DebugInfoFinder Finder; 31208599Srdivacky public: 32208599Srdivacky static char ID; // Pass identification, replacement for typeid 33218893Sdim ModuleDebugInfoPrinter() : ModulePass(ID) { 34218893Sdim initializeModuleDebugInfoPrinterPass(*PassRegistry::getPassRegistry()); 35218893Sdim } 36208599Srdivacky 37208599Srdivacky virtual bool runOnModule(Module &M); 38208599Srdivacky 39208599Srdivacky virtual void getAnalysisUsage(AnalysisUsage &AU) const { 40208599Srdivacky AU.setPreservesAll(); 41208599Srdivacky } 42208599Srdivacky virtual void print(raw_ostream &O, const Module *M) const; 43208599Srdivacky }; 44208599Srdivacky} 45208599Srdivacky 46208599Srdivackychar ModuleDebugInfoPrinter::ID = 0; 47212904SdimINITIALIZE_PASS(ModuleDebugInfoPrinter, "module-debuginfo", 48218893Sdim "Decodes module-level debug info", false, true) 49208599Srdivacky 50208599SrdivackyModulePass *llvm::createModuleDebugInfoPrinterPass() { 51208599Srdivacky return new ModuleDebugInfoPrinter(); 52208599Srdivacky} 53208599Srdivacky 54208599Srdivackybool ModuleDebugInfoPrinter::runOnModule(Module &M) { 55208599Srdivacky Finder.processModule(M); 56208599Srdivacky return false; 57208599Srdivacky} 58208599Srdivacky 59208599Srdivackyvoid ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const { 60208599Srdivacky for (DebugInfoFinder::iterator I = Finder.compile_unit_begin(), 61208599Srdivacky E = Finder.compile_unit_end(); I != E; ++I) { 62208599Srdivacky O << "Compile Unit: "; 63208599Srdivacky DICompileUnit(*I).print(O); 64208599Srdivacky O << '\n'; 65208599Srdivacky } 66208599Srdivacky 67208599Srdivacky for (DebugInfoFinder::iterator I = Finder.subprogram_begin(), 68208599Srdivacky E = Finder.subprogram_end(); I != E; ++I) { 69208599Srdivacky O << "Subprogram: "; 70208599Srdivacky DISubprogram(*I).print(O); 71208599Srdivacky O << '\n'; 72208599Srdivacky } 73208599Srdivacky 74208599Srdivacky for (DebugInfoFinder::iterator I = Finder.global_variable_begin(), 75208599Srdivacky E = Finder.global_variable_end(); I != E; ++I) { 76208599Srdivacky O << "GlobalVariable: "; 77208599Srdivacky DIGlobalVariable(*I).print(O); 78208599Srdivacky O << '\n'; 79208599Srdivacky } 80208599Srdivacky 81208599Srdivacky for (DebugInfoFinder::iterator I = Finder.type_begin(), 82208599Srdivacky E = Finder.type_end(); I != E; ++I) { 83208599Srdivacky O << "Type: "; 84208599Srdivacky DIType(*I).print(O); 85208599Srdivacky O << '\n'; 86208599Srdivacky } 87208599Srdivacky} 88