| /* system/debuggerd/utility.h |
| ** |
| ** Copyright 2008, The Android Open Source Project |
| ** |
| ** 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 _DEBUGGERD_UTILITY_H |
| #define _DEBUGGERD_UTILITY_H |
| |
| #include <inttypes.h> |
| #include <signal.h> |
| #include <stdbool.h> |
| #include <sys/types.h> |
| |
| #include <string> |
| |
| #include <android-base/macros.h> |
| |
| struct log_t { |
| // Tombstone file descriptor. |
| int tfd; |
| // Data to be sent to the Activity Manager. |
| std::string* amfd_data; |
| // The tid of the thread that crashed. |
| pid_t crashed_tid; |
| // The tid of the thread we are currently working with. |
| pid_t current_tid; |
| // logd daemon crash, can block asking for logcat data, allow suppression. |
| bool should_retrieve_logcat; |
| |
| log_t() |
| : tfd(-1), |
| amfd_data(nullptr), |
| crashed_tid(-1), |
| current_tid(-1), |
| should_retrieve_logcat(true) {} |
| }; |
| |
| // List of types of logs to simplify the logging decision in _LOG |
| enum logtype { |
| HEADER, |
| THREAD, |
| REGISTERS, |
| FP_REGISTERS, |
| BACKTRACE, |
| MAPS, |
| MEMORY, |
| STACK, |
| LOGS, |
| OPEN_FILES |
| }; |
| |
| #if defined(__LP64__) |
| #define PRIPTR "016" PRIx64 |
| typedef uint64_t word_t; |
| #else |
| #define PRIPTR "08" PRIx64 |
| typedef uint32_t word_t; |
| #endif |
| |
| // Log information onto the tombstone. |
| void _LOG(log_t* log, logtype ltype, const char* fmt, ...) __attribute__((format(printf, 3, 4))); |
| |
| namespace unwindstack { |
| class Unwinder; |
| class Memory; |
| } |
| |
| void log_backtrace(log_t* log, unwindstack::Unwinder* unwinder, const char* prefix); |
| |
| void dump_memory(log_t* log, unwindstack::Memory* backtrace, uint64_t addr, const std::string&); |
| |
| void read_with_default(const char* path, char* buf, size_t len, const char* default_value); |
| |
| void drop_capabilities(); |
| |
| bool signal_has_sender(const siginfo_t*, pid_t caller_pid); |
| bool signal_has_si_addr(const siginfo_t*); |
| void get_signal_sender(char* buf, size_t n, const siginfo_t*); |
| const char* get_signame(const siginfo_t*); |
| const char* get_sigcode(const siginfo_t*); |
| |
| #endif // _DEBUGGERD_UTILITY_H |