//===- Signals.cpp - Signal Handling support --------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines some helpful functions for dealing with the possibility of
// Unix signals occurring while your program is running.
//
//===----------------------------------------------------------------------===//

#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/StringSaver.h"
#include "llvm/Support/raw_ostream.h"
#include <vector>

namespace llvm {
using namespace sys;

//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only TRULY operating system
//===          independent code.
//===----------------------------------------------------------------------===//

static std::vector<std::pair<void (*)(void *), void *>> CallBacksToRun;
void sys::RunSignalHandlers() {
  if (!CallBacksToRun.size())
    return;
  for (auto &I : CallBacksToRun)
    I.first(I.second);
  CallBacksToRun.clear();
}
}

using namespace llvm;

static bool findModulesAndOffsets(void **StackTrace, int Depth,
                                  const char **Modules, intptr_t *Offsets,
                                  const char *MainExecutableName,
                                  StringSaver &StrPool);

/// Format a pointer value as hexadecimal. Zero pad it out so its always the
/// same width.
static FormattedNumber format_ptr(void *PC) {
  // Each byte is two hex digits plus 2 for the 0x prefix.
  unsigned PtrWidth = 2 + 2 * sizeof(void *);
  return format_hex((uint64_t)PC, PtrWidth);
}

// Include the platform-specific parts of this class.
#include "Signals.inc"