1 files changed, 162 insertions, 0 deletions
diff --git a/lib/sanitizer_common/tests/sanitizer_allocator_testlib.cc b/lib/sanitizer_common/tests/sanitizer_allocator_testlib.cc
new file mode 100644
index 000000000000..f6a944f68f5e
--- /dev/null
+++ b/lib/sanitizer_common/tests/sanitizer_allocator_testlib.cc
@@ -0,0 +1,162 @@
+//===-- sanitizer_allocator_testlib.cc ------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// Malloc replacement library based on CombinedAllocator.
+// The primary purpose of this file is an end-to-end integration test
+// for CombinedAllocator.
+//===----------------------------------------------------------------------===//
+/* Usage:
+clang++ -fno-exceptions  -g -fPIC -I. -I../include -Isanitizer \
+ sanitizer_common/tests/sanitizer_allocator_testlib.cc \
+ sanitizer_common/sanitizer_*.cc -shared -lpthread -o testmalloc.so
+LD_PRELOAD=`pwd`/testmalloc.so /your/app
+*/
+#include "sanitizer_common/sanitizer_allocator.h"
+#include "sanitizer_common/sanitizer_common.h"
+#include <stddef.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <pthread.h>
+
+#ifndef SANITIZER_MALLOC_HOOK
+# define SANITIZER_MALLOC_HOOK(p, s)
+#endif
+
+#ifndef SANITIZER_FREE_HOOK
+# define SANITIZER_FREE_HOOK(p)
+#endif
+
+namespace {
+static const uptr kAllocatorSpace = 0x600000000000ULL;
+static const uptr kAllocatorSize  =  0x10000000000ULL;  // 1T.
+
+typedef SizeClassAllocator64<kAllocatorSpace, kAllocatorSize, 0,
+  CompactSizeClassMap> PrimaryAllocator;
+typedef SizeClassAllocatorLocalCache<PrimaryAllocator> AllocatorCache;
+typedef LargeMmapAllocator<> SecondaryAllocator;
+typedef CombinedAllocator<PrimaryAllocator, AllocatorCache,
+          SecondaryAllocator> Allocator;
+
+static Allocator allocator;
+static bool global_inited;
+static THREADLOCAL AllocatorCache cache;
+static THREADLOCAL bool thread_inited;
+static pthread_key_t pkey;
+
+static void thread_dtor(void *v) {
+  if ((uptr)v != 3) {
+    pthread_setspecific(pkey, (void*)((uptr)v + 1));
+    return;
+  }
+  allocator.SwallowCache(&cache);
+}
+
+static void NOINLINE thread_init() {
+  if (!global_inited) {
+    global_inited = true;
+    allocator.Init();
+    pthread_key_create(&pkey, thread_dtor);
+  }
+  thread_inited = true;
+  pthread_setspecific(pkey, (void*)1);
+  cache.Init();
+}
+}  // namespace
+
+extern "C" {
+void *malloc(size_t size) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  void *p = allocator.Allocate(&cache, size, 8);
+  SANITIZER_MALLOC_HOOK(p, size);
+  return p;
+}
+
+void free(void *p) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  SANITIZER_FREE_HOOK(p);
+  allocator.Deallocate(&cache, p);
+}
+
+void *calloc(size_t nmemb, size_t size) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  size *= nmemb;
+  void *p = allocator.Allocate(&cache, size, 8, false);
+  memset(p, 0, size);
+  SANITIZER_MALLOC_HOOK(p, size);
+  return p;
+}
+
+void *realloc(void *p, size_t size) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  if (p) {
+    SANITIZER_FREE_HOOK(p);
+  }
+  p = allocator.Reallocate(&cache, p, size, 8);
+  if (p) {
+    SANITIZER_MALLOC_HOOK(p, size);
+  }
+  return p;
+}
+
+void *memalign(size_t alignment, size_t size) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  void *p = allocator.Allocate(&cache, size, alignment);
+  SANITIZER_MALLOC_HOOK(p, size);
+  return p;
+}
+
+int posix_memalign(void **memptr, size_t alignment, size_t size) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  *memptr = allocator.Allocate(&cache, size, alignment);
+  SANITIZER_MALLOC_HOOK(*memptr, size);
+  return 0;
+}
+
+void *valloc(size_t size) {
+  if (UNLIKELY(!thread_inited))
+    thread_init();
+  if (size == 0)
+    size = GetPageSizeCached();
+  void *p = allocator.Allocate(&cache, size, GetPageSizeCached());
+  SANITIZER_MALLOC_HOOK(p, size);
+  return p;
+}
+
+void cfree(void *p) ALIAS("free");
+void *pvalloc(size_t size) ALIAS("valloc");
+void *__libc_memalign(size_t alignment, size_t size) ALIAS("memalign");
+
+void malloc_usable_size() {
+}
+
+void mallinfo() {
+}
+
+void mallopt() {
+}
+}  // extern "C"
+
+namespace std {
+  struct nothrow_t;
+}
+
+void *operator new(size_t size) ALIAS("malloc");
+void *operator new[](size_t size) ALIAS("malloc");
+void *operator new(size_t size, std::nothrow_t const&) ALIAS("malloc");
+void *operator new[](size_t size, std::nothrow_t const&) ALIAS("malloc");
+void operator delete(void *ptr) ALIAS("free");
+void operator delete[](void *ptr) ALIAS("free");
+void operator delete(void *ptr, std::nothrow_t const&) ALIAS("free");
+void operator delete[](void *ptr, std::nothrow_t const&) ALIAS("free");