"Port" StackTrace to Mac

base/debug_util_posix.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "build/build_config.h"
 #include "base/debug_util.h"
 
-#if defined(OS_LINUX)
-#include <unistd.h>

[agl, 2009/01/16 22:02:47]

unistd is needed for STDERR_FILENO

 #include <execinfo.h>
-#endif
-
+#include <fcntl.h>
 #include <stdio.h>
-#include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/sysctl.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/string_piece.h"
 
 // static
@@ skipping 66 matching lines @@
   return pid_index < status.size() && status[pid_index] != '0';
 }
 
 #endif  // OS_LINUX
 
 // static
 void DebugUtil::BreakDebugger() {
   asm ("int3");
 }
 
-#if defined(OS_LINUX)
-
 StackTrace::StackTrace() {
-  static const unsigned kMaxCallers = 256;
+  static const int kMaxCallers = 256;
 
   void* callers[kMaxCallers];
   int count = backtrace(callers, kMaxCallers);
   trace_.resize(count);
   memcpy(&trace_[0], callers, sizeof(void*) * count);
 }
 
 void StackTrace::PrintBacktrace() {
   fflush(stderr);
   backtrace_symbols_fd(&trace_[0], trace_.size(), STDERR_FILENO);
 }
-
-#elif defined(OS_MACOSX)
-
-// TODO(port): complete this code
-StackTrace::StackTrace() { }
-
-void StackTrace::PrintBacktrace() {
-  NOTIMPLEMENTED();
-}
-
-#endif  // defined(OS_MACOSX)
-
-const void *const *StackTrace::Addresses(size_t* count) {
-  *count = trace_.size();
-  if (trace_.size())
-    return &trace_[0];
-  return NULL;
-}