roll llvm-allocated-type 186332:204777.

Linux_x64/lib/clang/3.5.0/include/sanitizer/asan_interface.h

+//===-- sanitizer/asan_interface.h ------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of AddressSanitizer.
+//
+// Public interface header.
+//===----------------------------------------------------------------------===//
+#ifndef SANITIZER_ASAN_INTERFACE_H
+#define SANITIZER_ASAN_INTERFACE_H
+
+#include <sanitizer/common_interface_defs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  // Marks memory region [addr, addr+size) as unaddressable.
+  // This memory must be previously allocated by the user program. Accessing
+  // addresses in this region from instrumented code is forbidden until
+  // this region is unpoisoned. This function is not guaranteed to poison
+  // the whole region - it may poison only subregion of [addr, addr+size) due
+  // to ASan alignment restrictions.
+  // Method is NOT thread-safe in the sense that no two threads can
+  // (un)poison memory in the same memory region simultaneously.
+  void __asan_poison_memory_region(void const volatile *addr, size_t size);
+  // Marks memory region [addr, addr+size) as addressable.
+  // This memory must be previously allocated by the user program. Accessing
+  // addresses in this region is allowed until this region is poisoned again.
+  // This function may unpoison a superregion of [addr, addr+size) due to
+  // ASan alignment restrictions.
+  // Method is NOT thread-safe in the sense that no two threads can
+  // (un)poison memory in the same memory region simultaneously.
+  void __asan_unpoison_memory_region(void const volatile *addr, size_t size);
+
+// User code should use macros instead of functions.
+#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
+#define ASAN_POISON_MEMORY_REGION(addr, size) \
+  __asan_poison_memory_region((addr), (size))
+#define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
+  __asan_unpoison_memory_region((addr), (size))
+#else
+#define ASAN_POISON_MEMORY_REGION(addr, size) \
+  ((void)(addr), (void)(size))
+#define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
+  ((void)(addr), (void)(size))
+#endif
+
+  // Returns true iff addr is poisoned (i.e. 1-byte read/write access to this
+  // address will result in error report from AddressSanitizer).
+  bool __asan_address_is_poisoned(void const volatile *addr);
+
+  // If at least on byte in [beg, beg+size) is poisoned, return the address
+  // of the first such byte. Otherwise return 0.
+  void *__asan_region_is_poisoned(void *beg, size_t size);
+
+  // Print the description of addr (useful when debugging in gdb).
+  void __asan_describe_address(void *addr);
+
+  // This is an internal function that is called to report an error.
+  // However it is still a part of the interface because users may want to
+  // set a breakpoint on this function in a debugger.
+  void __asan_report_error(void *pc, void *bp, void *sp,
+                           void *addr, bool is_write, size_t access_size);
+
+  // Sets the exit code to use when reporting an error.
+  // Returns the old value.
+  int __asan_set_error_exit_code(int exit_code);
+
+  // Sets the callback to be called right before death on error.
+  // Passing 0 will unset the callback.
+  void __asan_set_death_callback(void (*callback)(void));
+
+  void __asan_set_error_report_callback(void (*callback)(const char*));
+
+  // User may provide function that would be called right when ASan detects
+  // an error. This can be used to notice cases when ASan detects an error, but
+  // the program crashes before ASan report is printed.
+  void __asan_on_error();
+
+  // Returns the estimated number of bytes that will be reserved by allocator
+  // for request of "size" bytes. If ASan allocator can't allocate that much
+  // memory, returns the maximal possible allocation size, otherwise returns
+  // "size".
+  size_t __asan_get_estimated_allocated_size(size_t size);
+  // Returns true if p was returned by the ASan allocator and
+  // is not yet freed.
+  bool __asan_get_ownership(const void *p);
+  // Returns the number of bytes reserved for the pointer p.
+  // Requires (get_ownership(p) == true) or (p == 0).
+  size_t __asan_get_allocated_size(const void *p);
+  // Number of bytes, allocated and not yet freed by the application.
+  size_t __asan_get_current_allocated_bytes();
+  // Number of bytes, mmaped by asan allocator to fulfill allocation requests.
+  // Generally, for request of X bytes, allocator can reserve and add to free
+  // lists a large number of chunks of size X to use them for future requests.
+  // All these chunks count toward the heap size. Currently, allocator never
+  // releases memory to OS (instead, it just puts freed chunks to free lists).
+  size_t __asan_get_heap_size();
+  // Number of bytes, mmaped by asan allocator, which can be used to fulfill
+  // allocation requests. When a user program frees memory chunk, it can first
+  // fall into quarantine and will count toward __asan_get_free_bytes() later.
+  size_t __asan_get_free_bytes();
+  // Number of bytes in unmapped pages, that are released to OS. Currently,
+  // always returns 0.
+  size_t __asan_get_unmapped_bytes();
+  // Prints accumulated stats to stderr. Used for debugging.
+  void __asan_print_accumulated_stats();
+
+  // This function may be optionally provided by user and should return
+  // a string containing ASan runtime options. See asan_flags.h for details.
+  const char* __asan_default_options();
+
+  // Malloc hooks that may be optionally provided by user.
+  // __asan_malloc_hook(ptr, size) is called immediately after
+  //   allocation of "size" bytes, which returned "ptr".
+  // __asan_free_hook(ptr) is called immediately before
+  //   deallocation of "ptr".
+  void __asan_malloc_hook(void *ptr, size_t size);
+  void __asan_free_hook(void *ptr);
+
+  // The following 2 functions facilitate garbage collection in presence of
+  // asan's fake stack.
+
+  // Returns an opaque handler to be used later in __asan_addr_is_in_fake_stack.
+  // Returns NULL if the current thread does not have a fake stack.
+  void *__asan_get_current_fake_stack();
+
+  // If fake_stack is non-NULL and addr belongs to a fake frame in
+  // fake_stack, returns the address on real stack that corresponds to
+  // the fake frame and sets beg/end to the boundaries of this fake frame.
+  // Otherwise returns NULL and does not touch beg/end.
+  // If beg/end are NULL, they are not touched.
+  // This function may be called from a thread other than the owner of
+  // fake_stack, but the owner thread need to be alive.
+  void *__asan_addr_is_in_fake_stack(void *fake_stack, void *addr, void **beg,
+                                     void **end);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // SANITIZER_ASAN_INTERFACE_H