| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BACKTRACE_REQUEST_BACKTRACE_REQUEST_H_ |
| #define BACKTRACE_REQUEST_BACKTRACE_REQUEST_H_ |
| |
| #include <stdint.h> |
| |
| #define BACKTRACE_REQUEST_MAGIC ((uint64_t)0xee726573756d65ee) |
| |
| // Invoke this function to cause crashlogger to print a backtrace |
| // and resume the thread without killing the process. |
| |
| static inline void backtrace_request(void) { |
| #ifdef __x86_64__ |
| __asm__ ("int3" : : "a" (BACKTRACE_REQUEST_MAGIC)); |
| #endif |
| #ifdef __aarch64__ |
| // This is what gdb uses. |
| __asm__ ("mov x0, %0\n" |
| "\tbrk 0" |
| : : "r" (BACKTRACE_REQUEST_MAGIC) : "x0"); |
| #endif |
| } |
| |
| #endif // BACKTRACE_REQUEST_BACKTRACE_REQUEST_H_ |
