C++ (Cpp) processFDE Examples

Example #1

File: RuntimeDyldMachO.cpp Project: rmn30/llvm

void RuntimeDyldMachO::registerEHFrames() {

  if (!MemMgr)
    return;
  for (int i = 0, e = UnregisteredEHFrameSections.size(); i != e; ++i) {
    EHFrameRelatedSections &SectionInfo = UnregisteredEHFrameSections[i];
    if (SectionInfo.EHFrameSID == RTDYLD_INVALID_SECTION_ID ||
        SectionInfo.TextSID == RTDYLD_INVALID_SECTION_ID)
      continue;
    SectionEntry *Text = &Sections[SectionInfo.TextSID];
    SectionEntry *EHFrame = &Sections[SectionInfo.EHFrameSID];
    SectionEntry *ExceptTab = nullptr;
    if (SectionInfo.ExceptTabSID != RTDYLD_INVALID_SECTION_ID)
      ExceptTab = &Sections[SectionInfo.ExceptTabSID];

    intptr_t DeltaForText = computeDelta(Text, EHFrame);
    intptr_t DeltaForEH = 0;
    if (ExceptTab)
      DeltaForEH = computeDelta(ExceptTab, EHFrame);

    unsigned char *P = EHFrame->Address;
    unsigned char *End = P + EHFrame->Size;
    do {
      P = processFDE(P, DeltaForText, DeltaForEH);
    } while (P != End);

    MemMgr->registerEHFrames(EHFrame->Address, EHFrame->LoadAddress,
                             EHFrame->Size);
  }
  UnregisteredEHFrameSections.clear();
}

Example #2

File: RuntimeDyldMachO.cpp Project: 2asoft/freebsd

void RuntimeDyldMachOCRTPBase<Impl>::registerEHFrames() {

  for (int i = 0, e = UnregisteredEHFrameSections.size(); i != e; ++i) {
    EHFrameRelatedSections &SectionInfo = UnregisteredEHFrameSections[i];
    if (SectionInfo.EHFrameSID == RTDYLD_INVALID_SECTION_ID ||
        SectionInfo.TextSID == RTDYLD_INVALID_SECTION_ID)
      continue;
    SectionEntry *Text = &Sections[SectionInfo.TextSID];
    SectionEntry *EHFrame = &Sections[SectionInfo.EHFrameSID];
    SectionEntry *ExceptTab = nullptr;
    if (SectionInfo.ExceptTabSID != RTDYLD_INVALID_SECTION_ID)
      ExceptTab = &Sections[SectionInfo.ExceptTabSID];

    int64_t DeltaForText = computeDelta(Text, EHFrame);
    int64_t DeltaForEH = 0;
    if (ExceptTab)
      DeltaForEH = computeDelta(ExceptTab, EHFrame);

    uint8_t *P = EHFrame->getAddress();
    uint8_t *End = P + EHFrame->getSize();
    do {
      P = processFDE(P, DeltaForText, DeltaForEH);
    } while (P != End);

    MemMgr.registerEHFrames(EHFrame->getAddress(), EHFrame->getLoadAddress(),
                            EHFrame->getSize());
  }
  UnregisteredEHFrameSections.clear();
}

Example #3

File: RTDyldMemoryManager.cpp Project: crabtw/llvm

void RTDyldMemoryManager::deregisterEHFramesInProcess(uint8_t *Addr,
                                                      size_t Size) {
  const char *P = (const char *)Addr;
  const char *End = P + Size;
  do  {
    P = processFDE(P, true);
  } while(P != End);
}

Example #4

File: RTDyldMemoryManager.cpp Project: cfscosta/llvm

void RTDyldMemoryManager::registerEHFrames(StringRef SectionData) {
#if HAVE_EHTABLE_SUPPORT
  const char *P = SectionData.data();
  const char *End = SectionData.data() + SectionData.size();
  do  {
    P = processFDE(P);
  } while(P != End);
#endif
}

Example #5

File: RTDyldMemoryManager.cpp Project: pedroha/llvm

// This implementation handles frame registration for local targets.
// Memory managers for remote targets should re-implement this function
// and use the LoadAddr parameter.
void RTDyldMemoryManager::registerEHFrames(uint8_t *Addr,
                                           uint64_t LoadAddr,
                                           size_t Size) {
#if HAVE_EHTABLE_SUPPORT
  const char *P = (const char *)Addr;
  const char *End = P + Size;
  do  {
    P = processFDE(P);
  } while(P != End);
#endif
}

Example #6

File: RTDyldMemoryManager.cpp Project: crabtw/llvm

// This implementation handles frame registration for local targets.
// Memory managers for remote targets should re-implement this function
// and use the LoadAddr parameter.
void RTDyldMemoryManager::registerEHFramesInProcess(uint8_t *Addr,
                                                    size_t Size) {
  // On OS X OS X __register_frame takes a single FDE as an argument.
  // See http://lists.llvm.org/pipermail/llvm-dev/2013-April/061737.html
  // and projects/libunwind/src/UnwindLevel1-gcc-ext.c.
  const char *P = (const char *)Addr;
  const char *End = P + Size;
  do  {
    P = processFDE(P, false);
  } while(P != End);
}

Example #7

File: RTDyldMemoryManager.cpp Project: 0xDEC0DE8/mcsema

// This implementation handles frame registration for local targets.
// Memory managers for remote targets should re-implement this function
// and use the LoadAddr parameter.
void RTDyldMemoryManager::registerEHFrames(uint8_t *Addr,
                                           uint64_t LoadAddr,
                                           size_t Size) {
  // On OS X OS X __register_frame takes a single FDE as an argument.
  // See http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-April/061768.html
  const char *P = (const char *)Addr;
  const char *End = P + Size;
  do  {
    P = processFDE(P, false);
  } while(P != End);
}