libsanitizer: Merge with upstream

Merged revision: 7704fedfff6ef5676adb6415f3be0ac927d1a746

1 files changed, 3 insertions, 179 deletions

diff --git a/libsanitizer/hwasan/hwasan_interceptors.cpp b/libsanitizer/hwasan/hwasan_interceptors.cpp
index ad67e2787d3..68f8adec077 100644
--- a/libsanitizer/hwasan/hwasan_interceptors.cpp
+++ b/libsanitizer/hwasan/hwasan_interceptors.cpp
@@ -16,192 +16,14 @@
 
 #include "interception/interception.h"
 #include "hwasan.h"
-#include "hwasan_allocator.h"
-#include "hwasan_mapping.h"
 #include "hwasan_thread.h"
-#include "hwasan_poisoning.h"
-#include "hwasan_report.h"
-#include "sanitizer_common/sanitizer_platform_limits_posix.h"
-#include "sanitizer_common/sanitizer_allocator.h"
-#include "sanitizer_common/sanitizer_allocator_interface.h"
-#include "sanitizer_common/sanitizer_allocator_internal.h"
-#include "sanitizer_common/sanitizer_atomic.h"
-#include "sanitizer_common/sanitizer_common.h"
-#include "sanitizer_common/sanitizer_errno.h"
 #include "sanitizer_common/sanitizer_stackdepot.h"
-#include "sanitizer_common/sanitizer_libc.h"
-#include "sanitizer_common/sanitizer_linux.h"
-#include "sanitizer_common/sanitizer_tls_get_addr.h"
 
-#include <stdarg.h>
-// ACHTUNG! No other system header includes in this file.
-// Ideally, we should get rid of stdarg.h as well.
+#if !SANITIZER_FUCHSIA
 
 using namespace __hwasan;
 
-using __sanitizer::memory_order;
-using __sanitizer::atomic_load;
-using __sanitizer::atomic_store;
-using __sanitizer::atomic_uintptr_t;
-
-static uptr allocated_for_dlsym;
-static const uptr kDlsymAllocPoolSize = 1024;
-static uptr alloc_memory_for_dlsym[kDlsymAllocPoolSize];
-
-static bool IsInDlsymAllocPool(const void *ptr) {
-  uptr off = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
-  return off < sizeof(alloc_memory_for_dlsym);
-}
-
-static void *AllocateFromLocalPool(uptr size_in_bytes) {
-  uptr size_in_words = RoundUpTo(size_in_bytes, kWordSize) / kWordSize;
-  void *mem = (void *)&alloc_memory_for_dlsym[allocated_for_dlsym];
-  allocated_for_dlsym += size_in_words;
-  CHECK_LT(allocated_for_dlsym, kDlsymAllocPoolSize);
-  return mem;
-}
-
-#define ENSURE_HWASAN_INITED() do { \
-  CHECK(!hwasan_init_is_running); \
-  if (!hwasan_inited) { \
-    __hwasan_init(); \
-  } \
-} while (0)
-
-
-int __sanitizer_posix_memalign(void **memptr, uptr alignment, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  CHECK_NE(memptr, 0);
-  int res = hwasan_posix_memalign(memptr, alignment, size, &stack);
-  return res;
-}
-
-void * __sanitizer_memalign(uptr alignment, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  return hwasan_memalign(alignment, size, &stack);
-}
-
-void * __sanitizer_aligned_alloc(uptr alignment, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  return hwasan_aligned_alloc(alignment, size, &stack);
-}
-
-void * __sanitizer___libc_memalign(uptr alignment, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  void *ptr = hwasan_memalign(alignment, size, &stack);
-  if (ptr)
-    DTLS_on_libc_memalign(ptr, size);
-  return ptr;
-}
-
-void * __sanitizer_valloc(uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  return hwasan_valloc(size, &stack);
-}
-
-void * __sanitizer_pvalloc(uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  return hwasan_pvalloc(size, &stack);
-}
-
-void __sanitizer_free(void *ptr) {
-  GET_MALLOC_STACK_TRACE;
-  if (!ptr || UNLIKELY(IsInDlsymAllocPool(ptr))) return;
-  hwasan_free(ptr, &stack);
-}
-
-void __sanitizer_cfree(void *ptr) {
-  GET_MALLOC_STACK_TRACE;
-  if (!ptr || UNLIKELY(IsInDlsymAllocPool(ptr))) return;
-  hwasan_free(ptr, &stack);
-}
-
-uptr __sanitizer_malloc_usable_size(const void *ptr) {
-  return __sanitizer_get_allocated_size(ptr);
-}
-
-struct __sanitizer_struct_mallinfo __sanitizer_mallinfo() {
-  __sanitizer_struct_mallinfo sret;
-  internal_memset(&sret, 0, sizeof(sret));
-  return sret;
-}
-
-int __sanitizer_mallopt(int cmd, int value) {
-  return 0;
-}
-
-void __sanitizer_malloc_stats(void) {
-  // FIXME: implement, but don't call REAL(malloc_stats)!
-}
-
-void * __sanitizer_calloc(uptr nmemb, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  if (UNLIKELY(!hwasan_inited))
-    // Hack: dlsym calls calloc before REAL(calloc) is retrieved from dlsym.
-    return AllocateFromLocalPool(nmemb * size);
-  return hwasan_calloc(nmemb, size, &stack);
-}
-
-void * __sanitizer_realloc(void *ptr, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  if (UNLIKELY(IsInDlsymAllocPool(ptr))) {
-    uptr offset = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
-    uptr copy_size = Min(size, kDlsymAllocPoolSize - offset);
-    void *new_ptr;
-    if (UNLIKELY(!hwasan_inited)) {
-      new_ptr = AllocateFromLocalPool(copy_size);
-    } else {
-      copy_size = size;
-      new_ptr = hwasan_malloc(copy_size, &stack);
-    }
-    internal_memcpy(new_ptr, ptr, copy_size);
-    return new_ptr;
-  }
-  return hwasan_realloc(ptr, size, &stack);
-}
-
-void * __sanitizer_reallocarray(void *ptr, uptr nmemb, uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  return hwasan_reallocarray(ptr, nmemb, size, &stack);
-}
-
-void * __sanitizer_malloc(uptr size) {
-  GET_MALLOC_STACK_TRACE;
-  if (UNLIKELY(!hwasan_init_is_running))
-    ENSURE_HWASAN_INITED();
-  if (UNLIKELY(!hwasan_inited))
-    // Hack: dlsym calls malloc before REAL(malloc) is retrieved from dlsym.
-    return AllocateFromLocalPool(size);
-  return hwasan_malloc(size, &stack);
-}
-
 #if HWASAN_WITH_INTERCEPTORS
-#define INTERCEPTOR_ALIAS(RET, FN, ARGS...)                                  \
-  extern "C" SANITIZER_INTERFACE_ATTRIBUTE RET WRAP(FN)(ARGS)                \
-      ALIAS("__sanitizer_" #FN);                                             \
-  extern "C" SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE RET FN(  \
-      ARGS) ALIAS("__sanitizer_" #FN)
-
-INTERCEPTOR_ALIAS(int, posix_memalign, void **memptr, SIZE_T alignment,
-                  SIZE_T size);
-INTERCEPTOR_ALIAS(void *, aligned_alloc, SIZE_T alignment, SIZE_T size);
-INTERCEPTOR_ALIAS(void *, __libc_memalign, SIZE_T alignment, SIZE_T size);
-INTERCEPTOR_ALIAS(void *, valloc, SIZE_T size);
-INTERCEPTOR_ALIAS(void, free, void *ptr);
-INTERCEPTOR_ALIAS(uptr, malloc_usable_size, const void *ptr);
-INTERCEPTOR_ALIAS(void *, calloc, SIZE_T nmemb, SIZE_T size);
-INTERCEPTOR_ALIAS(void *, realloc, void *ptr, SIZE_T size);
-INTERCEPTOR_ALIAS(void *, reallocarray, void *ptr, SIZE_T nmemb, SIZE_T size);
-INTERCEPTOR_ALIAS(void *, malloc, SIZE_T size);
-
-#if !SANITIZER_FREEBSD && !SANITIZER_NETBSD
-INTERCEPTOR_ALIAS(void *, memalign, SIZE_T alignment, SIZE_T size);
-INTERCEPTOR_ALIAS(void *, pvalloc, SIZE_T size);
-INTERCEPTOR_ALIAS(void, cfree, void *ptr);
-INTERCEPTOR_ALIAS(__sanitizer_struct_mallinfo, mallinfo);
-INTERCEPTOR_ALIAS(int, mallopt, int cmd, int value);
-INTERCEPTOR_ALIAS(void, malloc_stats, void);
-#endif
 
 struct ThreadStartArg {
   thread_callback_t callback;
@@ -346,3 +168,5 @@ void InitializeInterceptors() {
   inited = 1;
 }
 } // namespace __hwasan
+
+#endif  // #if !SANITIZER_FUCHSIA