ModuleDebugInfoPrinter.cpp revision 208599
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" 19208599Srdivacky#include "llvm/Analysis/DebugInfo.h" 20208599Srdivacky#include "llvm/Assembly/Writer.h" 21208599Srdivacky#include "llvm/Pass.h" 22208599Srdivacky#include "llvm/Function.h" 23208599Srdivacky#include "llvm/Support/ErrorHandling.h" 24208599Srdivacky#include "llvm/Support/raw_ostream.h" 25208599Srdivacky#include "llvm/ADT/Statistic.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 33208599Srdivacky ModuleDebugInfoPrinter() : ModulePass(&ID) {} 34208599Srdivacky 35208599Srdivacky virtual bool runOnModule(Module &M); 36208599Srdivacky 37208599Srdivacky virtual void getAnalysisUsage(AnalysisUsage &AU) const { 38208599Srdivacky AU.setPreservesAll(); 39208599Srdivacky } 40208599Srdivacky virtual void print(raw_ostream &O, const Module *M) const; 41208599Srdivacky }; 42208599Srdivacky} 43208599Srdivacky 44208599Srdivackychar ModuleDebugInfoPrinter::ID = 0; 45208599Srdivackystatic RegisterPass<ModuleDebugInfoPrinter> 46208599SrdivackyX("module-debuginfo", 47208599Srdivacky "Decodes module-level debug info", false, true); 48208599Srdivacky 49208599SrdivackyModulePass *llvm::createModuleDebugInfoPrinterPass() { 50208599Srdivacky return new ModuleDebugInfoPrinter(); 51208599Srdivacky} 52208599Srdivacky 53208599Srdivackybool ModuleDebugInfoPrinter::runOnModule(Module &M) { 54208599Srdivacky Finder.processModule(M); 55208599Srdivacky return false; 56208599Srdivacky} 57208599Srdivacky 58208599Srdivackyvoid ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const { 59208599Srdivacky for (DebugInfoFinder::iterator I = Finder.compile_unit_begin(), 60208599Srdivacky E = Finder.compile_unit_end(); I != E; ++I) { 61208599Srdivacky O << "Compile Unit: "; 62208599Srdivacky DICompileUnit(*I).print(O); 63208599Srdivacky O << '\n'; 64208599Srdivacky } 65208599Srdivacky 66208599Srdivacky for (DebugInfoFinder::iterator I = Finder.subprogram_begin(), 67208599Srdivacky E = Finder.subprogram_end(); I != E; ++I) { 68208599Srdivacky O << "Subprogram: "; 69208599Srdivacky DISubprogram(*I).print(O); 70208599Srdivacky O << '\n'; 71208599Srdivacky } 72208599Srdivacky 73208599Srdivacky for (DebugInfoFinder::iterator I = Finder.global_variable_begin(), 74208599Srdivacky E = Finder.global_variable_end(); I != E; ++I) { 75208599Srdivacky O << "GlobalVariable: "; 76208599Srdivacky DIGlobalVariable(*I).print(O); 77208599Srdivacky O << '\n'; 78208599Srdivacky } 79208599Srdivacky 80208599Srdivacky for (DebugInfoFinder::iterator I = Finder.type_begin(), 81208599Srdivacky E = Finder.type_end(); I != E; ++I) { 82208599Srdivacky O << "Type: "; 83208599Srdivacky DIType(*I).print(O); 84208599Srdivacky O << '\n'; 85208599Srdivacky } 86208599Srdivacky} 87