crashpad/util/ios/ios_system_data_collector.h
Justin Cohen c11d49db88 Add a mask to MinidumpCrashpadInfo to indicate valid pointer addresses.
ARM64 supports storing pointer authentication codes in the upper bits of
a pointer. This mask can be used by LLDB to mimic ptrauth_strip and
strip the pointer authentication codes. To recover an address from
pointer with an authentication code, `AND` this mask with the pointer.

If the platform does not support pointer authentication, or the range of
valid addressees for a pointer was unaccessible, this field will be 0
and should be ignored.

Change-Id: Ie5cef90802dd1e892d456195ab8874223eac6a1b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2773358
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-01-30 18:27:02 +00:00

91 lines
3.2 KiB
Objective-C

// Copyright 2020 The Crashpad Authors
//
// 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.
#ifndef CRASHPAD_UTIL_IOS_IOS_SYSTEM_DATA_COLLECTOR_H_
#define CRASHPAD_UTIL_IOS_IOS_SYSTEM_DATA_COLLECTOR_H_
#import <CoreFoundation/CoreFoundation.h>
#include <functional>
#include <string>
namespace crashpad {
namespace internal {
//! \brief Used to collect system level data before a crash occurs.
class IOSSystemDataCollector {
public:
IOSSystemDataCollector();
~IOSSystemDataCollector();
void OSVersion(int* major, int* minor, int* bugfix) const;
const std::string& MachineDescription() const { return machine_description_; }
int ProcessorCount() const { return processor_count_; }
const std::string& Build() const { return build_; }
const std::string& BundleIdentifier() const { return bundle_identifier_; }
bool IsExtension() const { return is_extension_; }
const std::string& CPUVendor() const { return cpu_vendor_; }
bool HasDaylightSavingTime() const { return has_next_daylight_saving_time_; }
bool IsDaylightSavingTime() const { return is_daylight_saving_time_; }
int StandardOffsetSeconds() const { return standard_offset_seconds_; }
int DaylightOffsetSeconds() const { return daylight_offset_seconds_; }
const std::string& StandardName() const { return standard_name_; }
const std::string& DaylightName() const { return daylight_name_; }
bool IsApplicationActive() const { return active_; }
uint64_t AddressMask() const { return address_mask_; }
// Currently unused by minidump.
int Orientation() const { return orientation_; }
// A completion callback that takes a bool indicating that the application has
// become active or inactive.
using ActiveApplicationCallback = std::function<void(bool)>;
void SetActiveApplicationCallback(ActiveApplicationCallback callback) {
active_application_callback_ = callback;
}
private:
// Notification handlers for time zone, orientation and active state.
void InstallHandlers();
void SystemTimeZoneDidChangeNotification();
void OrientationDidChangeNotification();
void ApplicationDidChangeActiveNotification();
int major_version_;
int minor_version_;
int patch_version_;
std::string build_;
std::string bundle_identifier_;
bool is_extension_;
std::string machine_description_;
int orientation_;
bool active_;
int processor_count_;
std::string cpu_vendor_;
bool has_next_daylight_saving_time_;
bool is_daylight_saving_time_;
int standard_offset_seconds_;
int daylight_offset_seconds_;
std::string standard_name_;
std::string daylight_name_;
ActiveApplicationCallback active_application_callback_;
uint64_t address_mask_;
};
} // namespace internal
} // namespace crashpad
#endif // CRASHPAD_UTIL_IOS_IOS_SYSTEM_DATA_COLLECTOR_H_