Library import 16 (#2433)

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1 files changed, 154 insertions, 0 deletions

diff --git a/contrib/tools/python3/Python/dynamic_annotations.c b/contrib/tools/python3/Python/dynamic_annotations.c
new file mode 100644
index 00000000000..7febaa09df1
--- /dev/null
+++ b/contrib/tools/python3/Python/dynamic_annotations.c
@@ -0,0 +1,154 @@
+/* Copyright (c) 2008-2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Kostya Serebryany
+ */
+
+#ifdef _MSC_VER
+# include <windows.h>
+#endif
+
+#ifdef __cplusplus
+# error "This file should be built as pure C to avoid name mangling"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "dynamic_annotations.h"
+
+/* Each function is empty and called (via a macro) only in debug mode.
+   The arguments are captured by dynamic tools at runtime. */
+
+#if DYNAMIC_ANNOTATIONS_ENABLED == 1
+
+void AnnotateRWLockCreate(const char *file, int line,
+                          const volatile void *lock){}
+void AnnotateRWLockDestroy(const char *file, int line,
+                           const volatile void *lock){}
+void AnnotateRWLockAcquired(const char *file, int line,
+                            const volatile void *lock, long is_w){}
+void AnnotateRWLockReleased(const char *file, int line,
+                            const volatile void *lock, long is_w){}
+void AnnotateBarrierInit(const char *file, int line,
+                         const volatile void *barrier, long count,
+                         long reinitialization_allowed) {}
+void AnnotateBarrierWaitBefore(const char *file, int line,
+                               const volatile void *barrier) {}
+void AnnotateBarrierWaitAfter(const char *file, int line,
+                              const volatile void *barrier) {}
+void AnnotateBarrierDestroy(const char *file, int line,
+                            const volatile void *barrier) {}
+
+void AnnotateCondVarWait(const char *file, int line,
+                         const volatile void *cv,
+                         const volatile void *lock){}
+void AnnotateCondVarSignal(const char *file, int line,
+                           const volatile void *cv){}
+void AnnotateCondVarSignalAll(const char *file, int line,
+                              const volatile void *cv){}
+void AnnotatePublishMemoryRange(const char *file, int line,
+                                const volatile void *address,
+                                long size){}
+void AnnotateUnpublishMemoryRange(const char *file, int line,
+                                  const volatile void *address,
+                                  long size){}
+void AnnotatePCQCreate(const char *file, int line,
+                       const volatile void *pcq){}
+void AnnotatePCQDestroy(const char *file, int line,
+                        const volatile void *pcq){}
+void AnnotatePCQPut(const char *file, int line,
+                    const volatile void *pcq){}
+void AnnotatePCQGet(const char *file, int line,
+                    const volatile void *pcq){}
+void AnnotateNewMemory(const char *file, int line,
+                       const volatile void *mem,
+                       long size){}
+void AnnotateExpectRace(const char *file, int line,
+                        const volatile void *mem,
+                        const char *description){}
+void AnnotateBenignRace(const char *file, int line,
+                        const volatile void *mem,
+                        const char *description){}
+void AnnotateBenignRaceSized(const char *file, int line,
+                             const volatile void *mem,
+                             long size,
+                             const char *description) {}
+void AnnotateMutexIsUsedAsCondVar(const char *file, int line,
+                                  const volatile void *mu){}
+void AnnotateTraceMemory(const char *file, int line,
+                         const volatile void *arg){}
+void AnnotateThreadName(const char *file, int line,
+                        const char *name){}
+void AnnotateIgnoreReadsBegin(const char *file, int line){}
+void AnnotateIgnoreReadsEnd(const char *file, int line){}
+void AnnotateIgnoreWritesBegin(const char *file, int line){}
+void AnnotateIgnoreWritesEnd(const char *file, int line){}
+void AnnotateIgnoreSyncBegin(const char *file, int line){}
+void AnnotateIgnoreSyncEnd(const char *file, int line){}
+void AnnotateEnableRaceDetection(const char *file, int line, int enable){}
+void AnnotateNoOp(const char *file, int line,
+                  const volatile void *arg){}
+void AnnotateFlushState(const char *file, int line){}
+
+static int GetRunningOnValgrind(void) {
+#ifdef RUNNING_ON_VALGRIND
+  if (RUNNING_ON_VALGRIND) return 1;
+#endif
+
+#ifndef _MSC_VER
+  const char *running_on_valgrind_str = getenv("RUNNING_ON_VALGRIND");
+  if (running_on_valgrind_str) {
+    return strcmp(running_on_valgrind_str, "0") != 0;
+  }
+#else
+  /* Visual Studio issues warnings if we use getenv,
+   * so we use GetEnvironmentVariableA instead.
+   */
+  char value[100] = "1";
+  int res = GetEnvironmentVariableA("RUNNING_ON_VALGRIND",
+                                    value, sizeof(value));
+  /* value will remain "1" if res == 0 or res >= sizeof(value). The latter
+   * can happen only if the given value is long, in this case it can't be "0".
+   */
+  if (res > 0 && !strcmp(value, "0"))
+    return 1;
+#endif
+  return 0;
+}
+
+/* See the comments in dynamic_annotations.h */
+int RunningOnValgrind(void) {
+  static volatile int running_on_valgrind = -1;
+  /* C doesn't have thread-safe initialization of statics, and we
+     don't want to depend on pthread_once here, so hack it. */
+  int local_running_on_valgrind = running_on_valgrind;
+  if (local_running_on_valgrind == -1)
+    running_on_valgrind = local_running_on_valgrind = GetRunningOnValgrind();
+  return local_running_on_valgrind;
+}
+
+#endif  /* DYNAMIC_ANNOTATIONS_ENABLED == 1 */