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      1 /* system/debuggerd/utility.h
      2 **
      3 ** Copyright 2008, The Android Open Source Project
      4 **
      5 ** Licensed under the Apache License, Version 2.0 (the "License");
      6 ** you may not use this file except in compliance with the License.
      7 ** You may obtain a copy of the License at
      8 **
      9 **     http://www.apache.org/licenses/LICENSE-2.0
     10 **
     11 ** Unless required by applicable law or agreed to in writing, software
     12 ** distributed under the License is distributed on an "AS IS" BASIS,
     13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 ** See the License for the specific language governing permissions and
     15 ** limitations under the License.
     16 */
     17 
     18 #ifndef _DEBUGGERD_UTILITY_H
     19 #define _DEBUGGERD_UTILITY_H
     20 
     21 #include <stdbool.h>
     22 #include <sys/types.h>
     23 
     24 #include <string>
     25 
     26 #include <backtrace/Backtrace.h>
     27 
     28 // Figure out the abi based on defined macros.
     29 #if defined(__arm__)
     30 #define ABI_STRING "arm"
     31 #elif defined(__aarch64__)
     32 #define ABI_STRING "arm64"
     33 #elif defined(__mips__) && !defined(__LP64__)
     34 #define ABI_STRING "mips"
     35 #elif defined(__mips__) && defined(__LP64__)
     36 #define ABI_STRING "mips64"
     37 #elif defined(__i386__)
     38 #define ABI_STRING "x86"
     39 #elif defined(__x86_64__)
     40 #define ABI_STRING "x86_64"
     41 #else
     42 #error "Unsupported ABI"
     43 #endif
     44 
     45 
     46 struct log_t{
     47     // Tombstone file descriptor.
     48     int tfd;
     49     // Data to be sent to the Activity Manager.
     50     std::string* amfd_data;
     51     // The tid of the thread that crashed.
     52     pid_t crashed_tid;
     53     // The tid of the thread we are currently working with.
     54     pid_t current_tid;
     55     // logd daemon crash, can block asking for logcat data, allow suppression.
     56     bool should_retrieve_logcat;
     57 
     58     log_t()
     59         : tfd(-1), amfd_data(nullptr), crashed_tid(-1), current_tid(-1),
     60           should_retrieve_logcat(true) {}
     61 };
     62 
     63 // List of types of logs to simplify the logging decision in _LOG
     64 enum logtype {
     65   HEADER,
     66   THREAD,
     67   REGISTERS,
     68   FP_REGISTERS,
     69   BACKTRACE,
     70   MAPS,
     71   MEMORY,
     72   STACK,
     73   LOGS
     74 };
     75 
     76 // Log information onto the tombstone.
     77 void _LOG(log_t* log, logtype ltype, const char *fmt, ...)
     78         __attribute__ ((format(printf, 3, 4)));
     79 
     80 int wait_for_signal(pid_t tid, int* total_sleep_time_usec);
     81 
     82 void dump_memory(log_t* log, Backtrace* backtrace, uintptr_t addr, const char* fmt, ...);
     83 
     84 #endif // _DEBUGGERD_UTILITY_H
     85