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//===-- ModuleDebugInfoPrinter.cpp - Prints module debug info metadata ----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This pass decodes the debug info metadata in a module and prints in a
// (sufficiently-prepared-) human-readable form.
//
// For example, run this pass from opt along with the -analyze option, and
// it'll print to standard output.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/Passes.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/DebugInfo.h"
#include "llvm/Function.h"
#include "llvm/Pass.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
class ModuleDebugInfoPrinter : public ModulePass {
DebugInfoFinder Finder;
public:
static char ID; // Pass identification, replacement for typeid
ModuleDebugInfoPrinter() : ModulePass(ID) {
initializeModuleDebugInfoPrinterPass(*PassRegistry::getPassRegistry());
}
virtual bool runOnModule(Module &M);
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
virtual void print(raw_ostream &O, const Module *M) const;
};
}
char ModuleDebugInfoPrinter::ID = 0;
INITIALIZE_PASS(ModuleDebugInfoPrinter, "module-debuginfo",
"Decodes module-level debug info", false, true)
ModulePass *llvm::createModuleDebugInfoPrinterPass() {
return new ModuleDebugInfoPrinter();
}
bool ModuleDebugInfoPrinter::runOnModule(Module &M) {
Finder.processModule(M);
return false;
}
void ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const {
for (DebugInfoFinder::iterator I = Finder.compile_unit_begin(),
E = Finder.compile_unit_end(); I != E; ++I) {
O << "Compile Unit: ";
DICompileUnit(*I).print(O);
O << '\n';
}
for (DebugInfoFinder::iterator I = Finder.subprogram_begin(),
E = Finder.subprogram_end(); I != E; ++I) {
O << "Subprogram: ";
DISubprogram(*I).print(O);
O << '\n';
}
for (DebugInfoFinder::iterator I = Finder.global_variable_begin(),
E = Finder.global_variable_end(); I != E; ++I) {
O << "GlobalVariable: ";
DIGlobalVariable(*I).print(O);
O << '\n';
}
for (DebugInfoFinder::iterator I = Finder.type_begin(),
E = Finder.type_end(); I != E; ++I) {
O << "Type: ";
DIType(*I).print(O);
O << '\n';
}
}
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