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author | Jordan Rupprecht <rupprecht@google.com> | 2019-05-14 21:58:59 +0000 |
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committer | Jordan Rupprecht <rupprecht@google.com> | 2019-05-14 21:58:59 +0000 |
commit | b6bc976d7be8ee56d3be4b6dbd2f3ab0a4021c86 (patch) | |
tree | f5ed5db8cb5d237a073ea00c4d4cd63153a16a6c /lib/sanitizer_common/sanitizer_malloc_mac.inc | |
parent | 05342ccc9cff16425c0a831fddd510879544a0bf (diff) | |
parent | 098ca93185735ec3687106d0967a70fc99a85059 (diff) | |
download | compiler-rt-b6bc976d7be8ee56d3be4b6dbd2f3ab0a4021c86.tar.gz |
Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103google/stable
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_malloc_mac.inc')
-rw-r--r-- | lib/sanitizer_common/sanitizer_malloc_mac.inc | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/lib/sanitizer_common/sanitizer_malloc_mac.inc b/lib/sanitizer_common/sanitizer_malloc_mac.inc index 44c914cea..3f3581eeb 100644 --- a/lib/sanitizer_common/sanitizer_malloc_mac.inc +++ b/lib/sanitizer_common/sanitizer_malloc_mac.inc @@ -1,9 +1,8 @@ //===-- sanitizer_malloc_mac.inc --------------------------------*- C++ -*-===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // @@ -40,6 +39,8 @@ struct sanitizer_malloc_introspection_t : public malloc_introspection_t { // Used to track changes to the allocator that will affect // zone enumeration. u64 allocator_enumeration_version; + uptr allocator_ptr; + uptr allocator_size; }; u64 GetMallocZoneAllocatorEnumerationVersion() { @@ -281,13 +282,48 @@ void __sanitizer_mz_free_definite_size( } #endif -kern_return_t mi_enumerator(task_t task, void *, - unsigned type_mask, vm_address_t zone_address, - memory_reader_t reader, +#ifndef COMMON_MALLOC_HAS_ZONE_ENUMERATOR +#error "COMMON_MALLOC_HAS_ZONE_ENUMERATOR must be defined" +#endif +static_assert((COMMON_MALLOC_HAS_ZONE_ENUMERATOR) == 0 || + (COMMON_MALLOC_HAS_ZONE_ENUMERATOR) == 1, + "COMMON_MALLOC_HAS_ZONE_ENUMERATOR must be 0 or 1"); + +#if COMMON_MALLOC_HAS_ZONE_ENUMERATOR +// Forward declare and expect the implementation to provided by +// includer. +kern_return_t mi_enumerator(task_t task, void *, unsigned type_mask, + vm_address_t zone_address, memory_reader_t reader, + vm_range_recorder_t recorder); +#else +// Provide stub implementation that fails. +kern_return_t mi_enumerator(task_t task, void *, unsigned type_mask, + vm_address_t zone_address, memory_reader_t reader, vm_range_recorder_t recorder) { - // Should enumerate all the pointers we have. Seems like a lot of work. + // Not supported. return KERN_FAILURE; } +#endif + +#ifndef COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT +#error "COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT must be defined" +#endif +static_assert((COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT) == 0 || + (COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT) == 1, + "COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT must be 0 or 1"); +#if COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT +// Forward declare and expect the implementation to provided by +// includer. +void mi_extra_init( + sanitizer_malloc_introspection_t *mi); +#else +void mi_extra_init( + sanitizer_malloc_introspection_t *mi) { + // Just zero initialize the fields. + mi->allocator_ptr = 0; + mi->allocator_size = 0; +} +#endif size_t mi_good_size(malloc_zone_t *zone, size_t size) { // I think it's always safe to return size, but we maybe could do better. @@ -347,6 +383,9 @@ void InitMallocZoneFields() { sanitizer_zone_introspection.allocator_enumeration_version = GetMallocZoneAllocatorEnumerationVersion(); + // Perform any sanitizer specific initialization. + mi_extra_init(&sanitizer_zone_introspection); + internal_memset(&sanitizer_zone, 0, sizeof(malloc_zone_t)); // Use version 6 for OSX >= 10.6. |