| /* 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 <stddef.h> |
| #include <stdbool.h> |
| #include <sys/types.h> |
| #include <corkscrew/backtrace.h> |
| |
| /* Log information onto the tombstone. */ |
| void _LOG(int tfd, bool in_tombstone_only, const char *fmt, ...) |
| __attribute__ ((format(printf, 3, 4))); |
| |
| #define LOG(fmt...) _LOG(-1, 0, fmt) |
| |
| /* Set to 1 for normal debug traces */ |
| #if 0 |
| #define XLOG(fmt...) _LOG(-1, 0, fmt) |
| #else |
| #define XLOG(fmt...) do {} while(0) |
| #endif |
| |
| /* Set to 1 for chatty debug traces. Includes all resolved dynamic symbols */ |
| #if 0 |
| #define XLOG2(fmt...) _LOG(-1, 0, fmt) |
| #else |
| #define XLOG2(fmt...) do {} while(0) |
| #endif |
| |
| /* |
| * Returns true if the specified signal has an associated address. |
| * (i.e. it sets siginfo_t.si_addr). |
| */ |
| bool signal_has_address(int sig); |
| |
| /* |
| * Dumps the backtrace and contents of the stack. |
| */ |
| void dump_backtrace_and_stack(const ptrace_context_t* context, int tfd, pid_t tid, bool at_fault); |
| |
| /* |
| * Dumps a few bytes of memory, starting a bit before and ending a bit |
| * after the specified address. |
| */ |
| void dump_memory(int tfd, pid_t tid, uintptr_t addr, bool at_fault); |
| |
| /* |
| * If this isn't clearly a null pointer dereference, dump the |
| * /proc/maps entries near the fault address. |
| * |
| * This only makes sense to do on the thread that crashed. |
| */ |
| void dump_nearby_maps(const ptrace_context_t* context, int tfd, pid_t tid); |
| |
| |
| #endif // _DEBUGGERD_UTILITY_H |