mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-04 01:50:38 +00:00
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
//===-- asan_activation.cc --------------------------------------*- C++ -*-===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of AddressSanitizer, an address sanity checker.
|
|
//
|
|
// ASan activation/deactivation logic.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "asan_activation.h"
|
|
#include "asan_allocator.h"
|
|
#include "asan_flags.h"
|
|
#include "asan_internal.h"
|
|
#include "sanitizer_common/sanitizer_flags.h"
|
|
|
|
namespace __asan {
|
|
|
|
static struct AsanDeactivatedFlags {
|
|
int quarantine_size;
|
|
int max_redzone;
|
|
int malloc_context_size;
|
|
bool poison_heap;
|
|
} asan_deactivated_flags;
|
|
|
|
static bool asan_is_deactivated;
|
|
|
|
void AsanStartDeactivated() {
|
|
VReport(1, "Deactivating ASan\n");
|
|
// Save flag values.
|
|
asan_deactivated_flags.quarantine_size = flags()->quarantine_size;
|
|
asan_deactivated_flags.max_redzone = flags()->max_redzone;
|
|
asan_deactivated_flags.poison_heap = flags()->poison_heap;
|
|
asan_deactivated_flags.malloc_context_size =
|
|
common_flags()->malloc_context_size;
|
|
|
|
flags()->quarantine_size = 0;
|
|
flags()->max_redzone = 16;
|
|
flags()->poison_heap = false;
|
|
common_flags()->malloc_context_size = 0;
|
|
|
|
asan_is_deactivated = true;
|
|
}
|
|
|
|
void AsanActivate() {
|
|
if (!asan_is_deactivated) return;
|
|
VReport(1, "Activating ASan\n");
|
|
|
|
// Restore flag values.
|
|
// FIXME: this is not atomic, and there may be other threads alive.
|
|
flags()->quarantine_size = asan_deactivated_flags.quarantine_size;
|
|
flags()->max_redzone = asan_deactivated_flags.max_redzone;
|
|
flags()->poison_heap = asan_deactivated_flags.poison_heap;
|
|
common_flags()->malloc_context_size =
|
|
asan_deactivated_flags.malloc_context_size;
|
|
|
|
ParseExtraActivationFlags();
|
|
|
|
ReInitializeAllocator();
|
|
|
|
asan_is_deactivated = false;
|
|
VReport(
|
|
1,
|
|
"quarantine_size %d, max_redzone %d, poison_heap %d, malloc_context_size "
|
|
"%d\n",
|
|
flags()->quarantine_size, flags()->max_redzone, flags()->poison_heap,
|
|
common_flags()->malloc_context_size);
|
|
}
|
|
|
|
} // namespace __asan
|