compiler-rt/lib/orc/debug.h

   1 //===- debug.h - Debugging output utilities ---------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file is a part of the ORC runtime support library.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef ORC_RT_DEBUG_H
  14 #define ORC_RT_DEBUG_H
  15
  16 #include <atomic>
  17
  18 #ifndef NDEBUG
  19
  20 namespace orc_rt {
  21
  22 extern std::atomic<const char *> DebugTypes;
  23 extern char DebugTypesAll;
  24 extern char DebugTypesNone;
  25
  26 const char *initializeDebug();
  27 bool debugTypeEnabled(const char *Type, const char *Types);
  28 void printdbg(const char *format, ...);
  29
  30 } // namespace orc_rt
  31
  32 #define ORC_RT_DEBUG_WITH_TYPE(TYPE, X)                                        \
  33   do {                                                                         \
  34     const char *Types = ::orc_rt::DebugTypes.load(std::memory_order_relaxed);  \
  35     if (!Types)                                                                \
  36       Types = initializeDebug();                                               \
  37     if (Types == &DebugTypesNone)                                              \
  38       break;                                                                   \
  39     if (Types == &DebugTypesAll || ::orc_rt::debugTypeEnabled(TYPE, Types)) {  \
  40       X;                                                                       \
  41     }                                                                          \
  42   } while (false)
  43
  44 #else
  45
  46 #define ORC_RT_DEBUG_WITH_TYPE(TYPE, X)                                        \
  47   do {                                                                         \
  48   } while (false)
  49
  50 #endif // !NDEBUG
  51
  52 #define ORC_RT_DEBUG(X) ORC_RT_DEBUG_WITH_TYPE(DEBUG_TYPE, X)
  53
  54 #endif // ORC_RT_DEBUG_H