1 files changed, 74 insertions, 0 deletions
diff --git a/compiler-rt/lib/hwasan/hwasan_flags.inc b/compiler-rt/lib/hwasan/hwasan_flags.inc
new file mode 100644
index 000000000000..dffbf56cb155
--- /dev/null
+++ b/compiler-rt/lib/hwasan/hwasan_flags.inc
@@ -0,0 +1,74 @@
+//===-- hwasan_flags.inc ----------------------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// Hwasan runtime flags.
+//
+//===----------------------------------------------------------------------===//
+#ifndef HWASAN_FLAG
+# error "Define HWASAN_FLAG prior to including this file!"
+#endif
+
+// HWASAN_FLAG(Type, Name, DefaultValue, Description)
+// See COMMON_FLAG in sanitizer_flags.inc for more details.
+
+HWASAN_FLAG(bool, verbose_threads, false,
+            "inform on thread creation/destruction")
+HWASAN_FLAG(bool, tag_in_malloc, true, "")
+HWASAN_FLAG(bool, tag_in_free, true, "")
+HWASAN_FLAG(bool, print_stats, false, "")
+HWASAN_FLAG(bool, halt_on_error, true, "")
+HWASAN_FLAG(bool, atexit, false, "")
+
+// Test only flag to disable malloc/realloc/free memory tagging on startup.
+// Tagging can be reenabled with __hwasan_enable_allocator_tagging().
+HWASAN_FLAG(bool, disable_allocator_tagging, false, "")
+
+// If false, use simple increment of a thread local counter to generate new
+// tags.
+HWASAN_FLAG(bool, random_tags, true, "")
+
+HWASAN_FLAG(
+    int, max_malloc_fill_size, 0x1000,  // By default, fill only the first 4K.
+    "HWASan allocator flag. max_malloc_fill_size is the maximal amount of "
+    "bytes that will be filled with malloc_fill_byte on malloc.")
+
+HWASAN_FLAG(bool, free_checks_tail_magic, 1,
+    "If set, free() will check the magic values "
+    "to the right of the allocated object "
+    "if the allocation size is not a divident of the granule size")
+HWASAN_FLAG(
+    int, max_free_fill_size, 0,
+    "HWASan allocator flag. max_free_fill_size is the maximal amount of "
+    "bytes that will be filled with free_fill_byte during free.")
+HWASAN_FLAG(int, malloc_fill_byte, 0xbe,
+          "Value used to fill the newly allocated memory.")
+HWASAN_FLAG(int, free_fill_byte, 0x55,
+          "Value used to fill deallocated memory.")
+HWASAN_FLAG(int, heap_history_size, 1023,
+          "The number of heap (de)allocations remembered per thread. "
+          "Affects the quality of heap-related reports, but not the ability "
+          "to find bugs.")
+HWASAN_FLAG(bool, export_memory_stats, true,
+            "Export up-to-date memory stats through /proc")
+HWASAN_FLAG(int, stack_history_size, 1024,
+            "The number of stack frames remembered per thread. "
+            "Affects the quality of stack-related reports, but not the ability "
+            "to find bugs.")
+
+// Malloc / free bisection. Only tag malloc and free calls when a hash of
+// allocation size and stack trace is between malloc_bisect_left and
+// malloc_bisect_right (both inclusive). [0, 0] range is special and disables
+// bisection (i.e. everything is tagged). Once the range is narrowed down
+// enough, use malloc_bisect_dump to see interesting allocations.
+HWASAN_FLAG(uptr, malloc_bisect_left, 0,
+            "Left bound of malloc bisection, inclusive.")
+HWASAN_FLAG(uptr, malloc_bisect_right, 0,
+            "Right bound of malloc bisection, inclusive.")
+HWASAN_FLAG(bool, malloc_bisect_dump, false,
+            "Print all allocations within [malloc_bisect_left, "
+            "malloc_bisect_right] range ")