C++ ArchSpec::IsCompatibleMatch方法代码示例

void BreakpointLocationList::RemoveInvalidLocations(const ArchSpec &arch) {
  std::lock_guard<std::recursive_mutex> guard(m_mutex);
  size_t idx = 0;
  // Don't cache m_location.size() as it will change since we might remove
  // locations from our vector...
  while (idx < m_locations.size()) {
    BreakpointLocation *bp_loc = m_locations[idx].get();
    if (bp_loc->GetAddress().SectionWasDeleted()) {
      // Section was deleted which means this breakpoint comes from a module
      // that is no longer valid, so we should remove it.
      RemoveLocationByIndex(idx);
      continue;
    }
    if (arch.IsValid()) {
      ModuleSP module_sp(bp_loc->GetAddress().GetModule());
      if (module_sp) {
        if (!arch.IsCompatibleMatch(module_sp->GetArchitecture())) {
          // The breakpoint was in a module whose architecture is no longer
          // compatible with "arch", so we need to remove it
          RemoveLocationByIndex(idx);
          continue;
        }
      }
    }
    // Only increment the index if we didn't remove the locations at index
    // "idx"
    ++idx;
  }
}

ObjectFileSP
ObjectContainerUniversalMachO::GetObjectFile(const FileSpec *file) {
  uint32_t arch_idx = 0;
  ArchSpec arch;
  // If the module hasn't specified an architecture yet, set it to the default
  // architecture:
  ModuleSP module_sp(GetModule());
  if (module_sp) {
    if (!module_sp->GetArchitecture().IsValid()) {
      arch = Target::GetDefaultArchitecture();
      if (!arch.IsValid())
        arch.SetTriple(LLDB_ARCH_DEFAULT);
    } else
      arch = module_sp->GetArchitecture();

    ArchSpec curr_arch;
    // First, try to find an exact match for the Arch of the Target.
    for (arch_idx = 0; arch_idx < m_header.nfat_arch; ++arch_idx) {
      if (GetArchitectureAtIndex(arch_idx, curr_arch) &&
          arch.IsExactMatch(curr_arch))
        break;
    }

    // Failing an exact match, try to find a compatible Arch of the Target.
    if (arch_idx >= m_header.nfat_arch) {
      for (arch_idx = 0; arch_idx < m_header.nfat_arch; ++arch_idx) {
        if (GetArchitectureAtIndex(arch_idx, curr_arch) &&
            arch.IsCompatibleMatch(curr_arch))
          break;
      }
    }

    if (arch_idx < m_header.nfat_arch) {
      DataBufferSP data_sp;
      lldb::offset_t data_offset = 0;
      return ObjectFile::FindPlugin(
          module_sp, file, m_offset + m_fat_archs[arch_idx].offset,
          m_fat_archs[arch_idx].size, data_sp, data_offset);
    }
  }
  return ObjectFileSP();
}

//------------------------------------------------------------------
/// Lets a platform answer if it is compatible with a given
/// architecture and the target triple contained within.
//------------------------------------------------------------------
bool
Platform::IsCompatibleArchitecture (const ArchSpec &arch, bool exact_arch_match, ArchSpec *compatible_arch_ptr)
{
    // If the architecture is invalid, we must answer true...
    if (arch.IsValid())
    {
        ArchSpec platform_arch;
        // Try for an exact architecture match first.
        if (exact_arch_match)
        {
            for (uint32_t arch_idx=0; GetSupportedArchitectureAtIndex (arch_idx, platform_arch); ++arch_idx)
            {
                if (arch.IsExactMatch(platform_arch))
                {
                    if (compatible_arch_ptr)
                        *compatible_arch_ptr = platform_arch;
                    return true;
                }
            }
        }
        else
        {
            for (uint32_t arch_idx=0; GetSupportedArchitectureAtIndex (arch_idx, platform_arch); ++arch_idx)
            {
                if (arch.IsCompatibleMatch(platform_arch))
                {
                    if (compatible_arch_ptr)
                        *compatible_arch_ptr = platform_arch;
                    return true;
                }
            }
        }
    }
    if (compatible_arch_ptr)
        compatible_arch_ptr->Clear();
    return false;
}