llvm/library/LLVMOverrides.cpp

   1 /*
   2  * Copyright (C) 2013 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config_llvm.h"
  27
  28 #include "LLVMTrapCallback.h"
  29
  30 #if HAVE(LLVM)
  31
  32 extern "C" int __cxa_atexit();
  33 extern "C" int __cxa_atexit() { return 0; }
  34
  35 void (*g_llvmTrapCallback)(const char* message, ...) NO_RETURN;
  36
  37 // If LLVM tries to raise signals, abort, or fail an assertion, then let
  38 // WebKit handle it instead of trapping.
  39 extern "C" int raise(int signal);
  40 extern "C" void __assert_rtn(const char* function, const char* filename, int lineNumber, const char* expression) NO_RETURN;
  41 extern "C" void abort(void) NO_RETURN;
  42
  43 extern "C" int raise(int signal)
  44 {
  45     g_llvmTrapCallback("raise(%d) called.", signal);
  46     return 0;
  47 }
  48 extern "C" void __assert_rtn(const char* function, const char* filename, int lineNumber, const char* expression)
  49 {
  50     if (function)
  51         g_llvmTrapCallback("Assertion failed: (%s), function %s, file %s, line %d.", expression, function, filename, lineNumber);
  52     g_llvmTrapCallback("Assertion failed: (%s), file %s, line %d.", expression, filename, lineNumber);
  53 }
  54 extern "C" void abort(void)
  55 {
  56     g_llvmTrapCallback("abort() called.");
  57 }
  58
  59 #endif // HAVE(LLVM)