mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 19:52:54 +01:00
ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
//===-- ModuleDebugInfoPrinter.cpp - Prints module debug info metadata ----===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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/ADT/Statistic.h"
|
|
#include "llvm/Analysis/Passes.h"
|
|
#include "llvm/IR/DebugInfo.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());
|
|
}
|
|
|
|
bool runOnModule(Module &M) override;
|
|
|
|
void getAnalysisUsage(AnalysisUsage &AU) const override {
|
|
AU.setPreservesAll();
|
|
}
|
|
void print(raw_ostream &O, const Module *M) const override;
|
|
};
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static void printFile(raw_ostream &O, StringRef Filename, StringRef Directory,
|
|
unsigned Line = 0) {
|
|
if (Filename.empty())
|
|
return;
|
|
|
|
O << " from ";
|
|
if (!Directory.empty())
|
|
O << Directory << "/";
|
|
O << Filename;
|
|
if (Line)
|
|
O << ":" << Line;
|
|
}
|
|
|
|
void ModuleDebugInfoPrinter::print(raw_ostream &O, const Module *M) const {
|
|
// Printing the nodes directly isn't particularly helpful (since they
|
|
// reference other nodes that won't be printed, particularly for the
|
|
// filenames), so just print a few useful things.
|
|
for (DICompileUnit *CU : Finder.compile_units()) {
|
|
O << "Compile unit: ";
|
|
auto Lang = dwarf::LanguageString(CU->getSourceLanguage());
|
|
if (!Lang.empty())
|
|
O << Lang;
|
|
else
|
|
O << "unknown-language(" << CU->getSourceLanguage() << ")";
|
|
printFile(O, CU->getFilename(), CU->getDirectory());
|
|
O << '\n';
|
|
}
|
|
|
|
for (DISubprogram *S : Finder.subprograms()) {
|
|
O << "Subprogram: " << S->getName();
|
|
printFile(O, S->getFilename(), S->getDirectory(), S->getLine());
|
|
if (!S->getLinkageName().empty())
|
|
O << " ('" << S->getLinkageName() << "')";
|
|
O << '\n';
|
|
}
|
|
|
|
for (auto GVU : Finder.global_variables()) {
|
|
const auto *GV = GVU->getVariable();
|
|
O << "Global variable: " << GV->getName();
|
|
printFile(O, GV->getFilename(), GV->getDirectory(), GV->getLine());
|
|
if (!GV->getLinkageName().empty())
|
|
O << " ('" << GV->getLinkageName() << "')";
|
|
O << '\n';
|
|
}
|
|
|
|
for (const DIType *T : Finder.types()) {
|
|
O << "Type:";
|
|
if (!T->getName().empty())
|
|
O << ' ' << T->getName();
|
|
printFile(O, T->getFilename(), T->getDirectory(), T->getLine());
|
|
if (auto *BT = dyn_cast<DIBasicType>(T)) {
|
|
O << " ";
|
|
auto Encoding = dwarf::AttributeEncodingString(BT->getEncoding());
|
|
if (!Encoding.empty())
|
|
O << Encoding;
|
|
else
|
|
O << "unknown-encoding(" << BT->getEncoding() << ')';
|
|
} else {
|
|
O << ' ';
|
|
auto Tag = dwarf::TagString(T->getTag());
|
|
if (!Tag.empty())
|
|
O << Tag;
|
|
else
|
|
O << "unknown-tag(" << T->getTag() << ")";
|
|
}
|
|
if (auto *CT = dyn_cast<DICompositeType>(T)) {
|
|
if (auto *S = CT->getRawIdentifier())
|
|
O << " (identifier: '" << S->getString() << "')";
|
|
}
|
|
O << '\n';
|
|
}
|
|
}
|