Add ProcessTypes, its test, and many proctype definition files

util/mac/process_types/custom.cc

+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "util/mac/process_types.h"
+
+#include <string.h>
+
+#include "util/mac/process_types/internal.h"
+#include "util/mach/task_memory.h"
+
+namespace crashpad {
+namespace process_types {
+namespace internal {
+
+template <typename Traits>
+bool dyld_all_image_infos<Traits>::ReadInto(
+    ProcessReader* process_reader,
+    mach_vm_address_t address,
+    dyld_all_image_infos<Traits>* specific) {
+  TaskMemory* task_memory = process_reader->Memory();
+  if (!task_memory->Read(
+          address, sizeof(specific->version), &specific->version)) {
+    return false;
+  }
+
+  mach_vm_size_t size;
+  if (specific->version >= 14) {
+    size = sizeof(dyld_all_image_infos<Traits>);
+  } else if (specific->version >= 13) {
+    size = offsetof(dyld_all_image_infos<Traits>, reserved);
+  } else if (specific->version >= 12) {
+    size = offsetof(dyld_all_image_infos<Traits>, sharedCacheUUID);
+  } else if (specific->version >= 11) {
+    size = offsetof(dyld_all_image_infos<Traits>, sharedCacheSlide);
+  } else if (specific->version >= 10) {
+    size = offsetof(dyld_all_image_infos<Traits>, errorKind);
+  } else if (specific->version >= 9) {
+    size = offsetof(dyld_all_image_infos<Traits>, initialImageCount);
+  } else if (specific->version >= 8) {
+    size = offsetof(dyld_all_image_infos<Traits>, dyldAllImageInfosAddress);
+  } else if (specific->version >= 7) {
+    size = offsetof(dyld_all_image_infos<Traits>, uuidArrayCount);
+  } else if (specific->version >= 6) {
+    size = offsetof(dyld_all_image_infos<Traits>, systemOrderFlag);
+  } else if (specific->version >= 5) {
+    size = offsetof(dyld_all_image_infos<Traits>, coreSymbolicationShmPage);
+  } else if (specific->version >= 3) {
+    size = offsetof(dyld_all_image_infos<Traits>, dyldVersion);
+  } else if (specific->version >= 2) {
+    size = offsetof(dyld_all_image_infos<Traits>, jitInfo);
+  } else if (specific->version >= 1) {
+    size = offsetof(dyld_all_image_infos<Traits>, libSystemInitialized);
+  } else {
+    size = offsetof(dyld_all_image_infos<Traits>, infoArrayCount);
+  }
+
+  if (!task_memory->Read(address, size, specific)) {
+    return false;
+  }
+
+  // Zero out the rest of the structure in case anything accesses fields without
+  // checking the version.
+  size_t remaining = sizeof(*specific) - size;
+  if (remaining > 0) {
+    char* start = reinterpret_cast<char*>(specific) + size;
+    memset(start, 0, remaining);
+  }
+
+  return true;
+}
+
+#define PROCESS_TYPE_FLAVOR_TRAITS(lp_bits)                      \
+  template bool dyld_all_image_infos<Traits##lp_bits>::ReadInto( \
+      ProcessReader*,                                            \
+      mach_vm_address_t,                                         \
+      dyld_all_image_infos<Traits##lp_bits>*);
+
+#include "util/mac/process_types/flavors.h"
+
+#undef PROCESS_TYPE_FLAVOR_TRAITS
+
+}  // namespace internal
+}  // namespace process_types
+}  // namespace crashpad