remove llvm-db: it is completely broken and if anyone wants to do a debugger,

they should not base it on llvm-db (which not following almost any "best practices").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83288 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 376 deletions

diff --git a/lib/Debugger/ProgramInfo.cpp b/lib/Debugger/ProgramInfo.cpp
deleted file mode 100644
index 5ba1c708ab..0000000000
--- a/lib/Debugger/ProgramInfo.cpp
+++ /dev/null
@@ -1,376 +0,0 @@
-//===-- ProgramInfo.cpp - Compute and cache info about a program ----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the ProgramInfo and related classes, by sorting through
-// the loaded Module.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Debugger/ProgramInfo.h"
-#include "llvm/Constants.h"
-#include "llvm/Analysis/ValueTracking.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Intrinsics.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/Instructions.h"
-#include "llvm/Module.h"
-#include "llvm/Debugger/SourceFile.h"
-#include "llvm/Debugger/SourceLanguage.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/SlowOperationInformer.h"
-#include "llvm/ADT/STLExtras.h"
-using namespace llvm;
-
-/// getGlobalVariablesUsing - Return all of the global variables which have the
-/// specified value in their initializer somewhere.
-static void getGlobalVariablesUsing(Value *V,
-                                    std::vector<GlobalVariable*> &Found) {
-  for (Value::use_iterator I = V->use_begin(), E = V->use_end(); I != E; ++I) {
-    if (GlobalVariable *GV = dyn_cast<GlobalVariable>(*I))
-      Found.push_back(GV);
-    else if (Constant *C = dyn_cast<Constant>(*I))
-      getGlobalVariablesUsing(C, Found);
-  }
-}
-
-/// getNextStopPoint - Follow the def-use chains of the specified LLVM value,
-/// traversing the use chains until we get to a stoppoint.  When we do, return
-/// the source location of the stoppoint.  If we don't find a stoppoint, return
-/// null.
-static const GlobalVariable *getNextStopPoint(const Value *V, unsigned &LineNo,
-                                              unsigned &ColNo) {
-  // The use-def chains can fork.  As such, we pick the lowest numbered one we
-  // find.
-  const GlobalVariable *LastDesc = 0;
-  unsigned LastLineNo = ~0;
-  unsigned LastColNo = ~0;
-
-  for (Value::use_const_iterator UI = V->use_begin(), E = V->use_end();
-       UI != E; ++UI) {
-    bool ShouldRecurse = true;
-    if (cast<Instruction>(*UI)->getOpcode() == Instruction::PHI) {
-      // Infinite loops == bad, ignore PHI nodes.
-      ShouldRecurse = false;
-    } else if (const CallInst *CI = dyn_cast<CallInst>(*UI)) {
-      
-      // If we found a stop point, check to see if it is earlier than what we
-      // already have.  If so, remember it.
-      if (CI->getCalledFunction())
-        if (const DbgStopPointInst *SPI = dyn_cast<DbgStopPointInst>(CI)) {
-          unsigned CurLineNo = SPI->getLine();
-          unsigned CurColNo = SPI->getColumn();
-          const GlobalVariable *CurDesc = 0;
-          const Value *Op = SPI->getContext();
-
-          if ((CurDesc = dyn_cast<GlobalVariable>(Op)) &&
-              (LineNo < LastLineNo ||
-               (LineNo == LastLineNo && ColNo < LastColNo))) {
-            LastDesc = CurDesc;
-            LastLineNo = CurLineNo;
-            LastColNo = CurColNo;
-          }
-          ShouldRecurse = false;
-        }
-    }
-
-    // If this is not a phi node or a stopping point, recursively scan the users
-    // of this instruction to skip over region.begin's and the like.
-    if (ShouldRecurse) {
-      unsigned CurLineNo, CurColNo;
-      if (const GlobalVariable *GV = getNextStopPoint(*UI, CurLineNo,CurColNo)){
-        if (LineNo < LastLineNo || (LineNo == LastLineNo && ColNo < LastColNo)){
-          LastDesc = GV;
-          LastLineNo = CurLineNo;
-          LastColNo = CurColNo;
-        }
-      }
-    }
-  }
-
-  if (LastDesc) {
-    LineNo = LastLineNo != ~0U ? LastLineNo : 0;
-    ColNo  = LastColNo  != ~0U ? LastColNo : 0;
-  }
-  return LastDesc;
-}
-
-
-//===----------------------------------------------------------------------===//
-// SourceFileInfo implementation
-//
-
-SourceFileInfo::SourceFileInfo(const GlobalVariable *Desc,
-                               const SourceLanguage &Lang)
-  : Language(&Lang), Descriptor(Desc) {
-  Version = 0;
-  SourceText = 0;
-
-  if (Desc && Desc->hasInitializer())
-    if (ConstantStruct *CS = dyn_cast<ConstantStruct>(Desc->getInitializer()))
-      if (CS->getNumOperands() > 4) {
-        if (ConstantInt *CUI = dyn_cast<ConstantInt>(CS->getOperand(1)))
-          Version = CUI->getZExtValue();
-
-        if (!GetConstantStringInfo(CS->getOperand(3), BaseName))
-          BaseName = "";
-        if (!GetConstantStringInfo(CS->getOperand(4), Directory))
-          Directory = "";
-      }
-}
-
-SourceFileInfo::~SourceFileInfo() {
-  delete SourceText;
-}
-
-SourceFile &SourceFileInfo::getSourceText() const {
-  // FIXME: this should take into account the source search directories!
-  if (SourceText == 0) { // Read the file in if we haven't already.
-    sys::Path tmpPath;
-    if (!Directory.empty())
-      tmpPath.set(Directory);
-    tmpPath.appendComponent(BaseName);
-    if (tmpPath.canRead())
-      SourceText = new SourceFile(tmpPath.str(), Descriptor);
-    else
-      SourceText = new SourceFile(BaseName, Descriptor);
-  }
-  return *SourceText;
-}
-
-
-//===----------------------------------------------------------------------===//
-// SourceFunctionInfo implementation
-//
-SourceFunctionInfo::SourceFunctionInfo(ProgramInfo &PI,
-                                       const GlobalVariable *Desc)
-  : Descriptor(Desc) {
-  LineNo = ColNo = 0;
-  if (Desc && Desc->hasInitializer())
-    if (ConstantStruct *CS = dyn_cast<ConstantStruct>(Desc->getInitializer()))
-      if (CS->getNumOperands() > 2) {
-        // Entry #1 is the file descriptor.
-        if (const GlobalVariable *GV =
-            dyn_cast<GlobalVariable>(CS->getOperand(1)))
-          SourceFile = &PI.getSourceFile(GV);
-
-        // Entry #2 is the function name.
-        if (!GetConstantStringInfo(CS->getOperand(2), Name))
-          Name = "";
-      }
-}
-
-/// getSourceLocation - This method returns the location of the first stopping
-/// point in the function.
-void SourceFunctionInfo::getSourceLocation(unsigned &RetLineNo,
-                                           unsigned &RetColNo) const {
-  // If we haven't computed this yet...
-  if (!LineNo) {
-    // Look at all of the users of the function descriptor, looking for calls to
-    // %llvm.dbg.func.start.
-    for (Value::use_const_iterator UI = Descriptor->use_begin(),
-           E = Descriptor->use_end(); UI != E; ++UI)
-      if (const CallInst *CI = dyn_cast<CallInst>(*UI))
-        if (const Function *F = CI->getCalledFunction())
-          if (F->getIntrinsicID() == Intrinsic::dbg_func_start) {
-            // We found the start of the function.  Check to see if there are
-            // any stop points on the use-list of the function start.
-            const GlobalVariable *SD = getNextStopPoint(CI, LineNo, ColNo);
-            if (SD) {             // We found the first stop point!
-              // This is just a sanity check.
-              if (getSourceFile().getDescriptor() != SD)
-                outs() << "WARNING: first line of function is not in the"
-                     << " file that the function descriptor claims it is in.\n";
-              break;
-            }
-          }
-  }
-  RetLineNo = LineNo; RetColNo = ColNo;
-}
-
-//===----------------------------------------------------------------------===//
-// ProgramInfo implementation
-//
-
-ProgramInfo::ProgramInfo(Module *m) : M(m), ProgramTimeStamp(0,0) {
-  assert(M && "Cannot create program information with a null module!");
-  sys::PathWithStatus ModPath(M->getModuleIdentifier());
-  const sys::FileStatus *Stat = ModPath.getFileStatus();
-  if (Stat)
-    ProgramTimeStamp = Stat->getTimestamp();
-
-  SourceFilesIsComplete = false;
-  SourceFunctionsIsComplete = false;
-}
-
-ProgramInfo::~ProgramInfo() {
-  // Delete cached information about source program objects...
-  for (std::map<const GlobalVariable*, SourceFileInfo*>::iterator
-         I = SourceFiles.begin(), E = SourceFiles.end(); I != E; ++I)
-    delete I->second;
-  for (std::map<const GlobalVariable*, SourceFunctionInfo*>::iterator
-         I = SourceFunctions.begin(), E = SourceFunctions.end(); I != E; ++I)
-    delete I->second;
-
-  // Delete the source language caches.
-  for (unsigned i = 0, e = LanguageCaches.size(); i != e; ++i)
-    delete LanguageCaches[i].second;
-}
-
-
-//===----------------------------------------------------------------------===//
-// SourceFileInfo tracking...
-//
-
-/// getSourceFile - Return source file information for the specified source file
-/// descriptor object, adding it to the collection as needed.  This method
-/// always succeeds (is unambiguous), and is always efficient.
-///
-const SourceFileInfo &
-ProgramInfo::getSourceFile(const GlobalVariable *Desc) {
-  SourceFileInfo *&Result = SourceFiles[Desc];
-  if (Result) return *Result;
-
-  // Figure out what language this source file comes from...
-  unsigned LangID = 0;   // Zero is unknown language
-  if (Desc && Desc->hasInitializer())
-    if (ConstantStruct *CS = dyn_cast<ConstantStruct>(Desc->getInitializer()))
-      if (CS->getNumOperands() > 2)
-        if (ConstantInt *CUI = dyn_cast<ConstantInt>(CS->getOperand(2)))
-          LangID = CUI->getZExtValue();
-
-  const SourceLanguage &Lang = SourceLanguage::get(LangID);
-  SourceFileInfo *New = Lang.createSourceFileInfo(Desc, *this);
-
-  // FIXME: this should check to see if there is already a Filename/WorkingDir
-  // pair that matches this one.  If so, we shouldn't create the duplicate!
-  //
-  SourceFileIndex.insert(std::make_pair(New->getBaseName(), New));
-  return *(Result = New);
-}
-
-
-/// getSourceFiles - Index all of the source files in the program and return
-/// a mapping of it.  This information is lazily computed the first time
-/// that it is requested.  Since this information can take a long time to
-/// compute, the user is given a chance to cancel it.  If this occurs, an
-/// exception is thrown.
-const std::map<const GlobalVariable*, SourceFileInfo*> &
-ProgramInfo::getSourceFiles(bool RequiresCompleteMap) {
-  // If we have a fully populated map, or if the client doesn't need one, just
-  // return what we have.
-  if (SourceFilesIsComplete || !RequiresCompleteMap)
-    return SourceFiles;
-
-  // Ok, all of the source file descriptors (compile_unit in dwarf terms),
-  // should be on the use list of the llvm.dbg.translation_units global.
-  //
-  GlobalVariable *Units =
-    M->getGlobalVariable("llvm.dbg.translation_units", 
-                         StructType::get(M->getContext()));
-  if (Units == 0)
-    throw "Program contains no debugging information!";
-
-  std::vector<GlobalVariable*> TranslationUnits;
-  getGlobalVariablesUsing(Units, TranslationUnits);
-
-  SlowOperationInformer SOI("building source files index");
-
-  // Loop over all of the translation units found, building the SourceFiles
-  // mapping.
-  for (unsigned i = 0, e = TranslationUnits.size(); i != e; ++i) {
-    getSourceFile(TranslationUnits[i]);
-    if (SOI.progress(i+1, e))
-      throw "While building source files index, operation cancelled.";
-  }
-
-  // Ok, if we got this far, then we indexed the whole program.
-  SourceFilesIsComplete = true;
-  return SourceFiles;
-}
-
-/// getSourceFile - Look up the file with the specified name.  If there is
-/// more than one match for the specified filename, prompt the user to pick
-/// one.  If there is no source file that matches the specified name, throw
-/// an exception indicating that we can't find the file.  Otherwise, return
-/// the file information for that file.
-const SourceFileInfo &ProgramInfo::getSourceFile(const std::string &Filename) {
-  std::multimap<std::string, SourceFileInfo*>::const_iterator Start, End;
-  getSourceFiles();
-  tie(Start, End) = SourceFileIndex.equal_range(Filename);
-
-  if (Start == End) throw "Could not find source file '" + Filename + "'!";
-  const SourceFileInfo &SFI = *Start->second;
-  ++Start;
-  if (Start == End) return SFI;
-
-  throw "FIXME: Multiple source files with the same name not implemented!";
-}
-
-
-//===----------------------------------------------------------------------===//
-// SourceFunctionInfo tracking...
-//
-
-
-/// getFunction - Return function information for the specified function
-/// descriptor object, adding it to the collection as needed.  This method
-/// always succeeds (is unambiguous), and is always efficient.
-///
-const SourceFunctionInfo &
-ProgramInfo::getFunction(const GlobalVariable *Desc) {
-  SourceFunctionInfo *&Result = SourceFunctions[Desc];
-  if (Result) return *Result;
-
-  // Figure out what language this function comes from...
-  const GlobalVariable *SourceFileDesc = 0;
-  if (Desc && Desc->hasInitializer())
-    if (ConstantStruct *CS = dyn_cast<ConstantStruct>(Desc->getInitializer()))
-      if (CS->getNumOperands() > 0)
-        if (const GlobalVariable *GV =
-            dyn_cast<GlobalVariable>(CS->getOperand(1)))
-          SourceFileDesc = GV;
-
-  const SourceLanguage &Lang = getSourceFile(SourceFileDesc).getLanguage();
-  return *(Result = Lang.createSourceFunctionInfo(Desc, *this));
-}
-
-
-// getSourceFunctions - Index all of the functions in the program and return
-// them.  This information is lazily computed the first time that it is
-// requested.  Since this information can take a long time to compute, the user
-// is given a chance to cancel it.  If this occurs, an exception is thrown.
-const std::map<const GlobalVariable*, SourceFunctionInfo*> &
-ProgramInfo::getSourceFunctions(bool RequiresCompleteMap) {
-  if (SourceFunctionsIsComplete || !RequiresCompleteMap)
-    return SourceFunctions;
-
-  // Ok, all of the source function descriptors (subprogram in dwarf terms),
-  // should be on the use list of the llvm.dbg.translation_units global.
-  //
-  GlobalVariable *Units =
-    M->getGlobalVariable("llvm.dbg.globals", StructType::get(M->getContext()));
-  if (Units == 0)
-    throw "Program contains no debugging information!";
-
-  std::vector<GlobalVariable*> Functions;
-  getGlobalVariablesUsing(Units, Functions);
-
-  SlowOperationInformer SOI("building functions index");
-
-  // Loop over all of the functions found, building the SourceFunctions mapping.
-  for (unsigned i = 0, e = Functions.size(); i != e; ++i) {
-    getFunction(Functions[i]);
-    if (SOI.progress(i+1, e))
-      throw "While functions index, operation cancelled.";
-  }
-
-  // Ok, if we got this far, then we indexed the whole program.
-  SourceFunctionsIsComplete = true;
-  return SourceFunctions;
-}