5d3805fca3
* ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch builtins, store max (log2 (align), 0) into uchar field instead of align into uptr field. (ubsan_expand_objsize_ifn): Use _v1 suffixed type mismatch builtins, store uchar 0 field instead of uptr 0 field. (instrument_nonnull_return): Use _v1 suffixed nonnull return builtin, instead of passing one address of struct with 2 locations pass two addresses of structs with 1 location each. * sanitizer.def (BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH, BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_ABORT, BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN, BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_ABORT): Removed. (BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1, BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1_ABORT, BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1, BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1_ABORT): New builtins. * c-c++-common/ubsan/float-cast-overflow-1.c: Drop value keyword from expected output regexps. * c-c++-common/ubsan/float-cast-overflow-2.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-3.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-4.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-5.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-6.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-8.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-9.c: Likewise. * c-c++-common/ubsan/float-cast-overflow-10.c: Likewise. * g++.dg/ubsan/float-cast-overflow-bf.C: Likewise. * gcc.dg/ubsan/float-cast-overflow-bf.c: Likewise. * g++.dg/asan/default-options-1.C (__asan_default_options): Add used attribute. * g++.dg/asan/asan_test.C: Run with ASAN_OPTIONS=handle_segv=2 in the environment. * All source files: Merge from upstream 315899. * asan/Makefile.am (nodist_saninclude_HEADERS): Add include/sanitizer/tsan_interface.h. * asan/libtool-version: Bump the libasan SONAME. * lsan/Makefile.am (sanitizer_lsan_files): Add lsan_common_mac.cc. (lsan_files): Add lsan_linux.cc, lsan_mac.cc and lsan_malloc_mac.cc. * sanitizer_common/Makefile.am (sanitizer_common_files): Add sancov_flags.cc, sanitizer_allocator_checks.cc, sanitizer_coverage_libcdep_new.cc, sanitizer_errno.cc, sanitizer_file.cc, sanitizer_mac_libcdep.cc and sanitizer_stoptheworld_mac.cc. Remove sanitizer_coverage_libcdep.cc and sanitizer_coverage_mapping_libcdep.cc. * tsan/Makefile.am (tsan_files): Add tsan_external.cc. * ubsan/Makefile.am (DEFS): Add -DUBSAN_CAN_USE_CXXABI=1. (ubsan_files): Add ubsan_init_standalone.cc and ubsan_signals_standalone.cc. * ubsan/libtool-version: Bump the libubsan SONAME. * asan/Makefile.in: Regenerate. * lsan/Makefile.in: Regenerate. * sanitizer_common/Makefile.in: Regenerate. * tsan/Makefile.in: Regenerate. * ubsan/Makefile.in: Regenerate. From-SVN: r253887
161 lines
7.8 KiB
C++
161 lines
7.8 KiB
C++
//===-- asan_flags.inc ------------------------------------------*- C++ -*-===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// ASan runtime flags.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef ASAN_FLAG
|
|
# error "Define ASAN_FLAG prior to including this file!"
|
|
#endif
|
|
|
|
// ASAN_FLAG(Type, Name, DefaultValue, Description)
|
|
// See COMMON_FLAG in sanitizer_flags.inc for more details.
|
|
|
|
ASAN_FLAG(int, quarantine_size, -1,
|
|
"Deprecated, please use quarantine_size_mb.")
|
|
ASAN_FLAG(int, quarantine_size_mb, -1,
|
|
"Size (in Mb) of quarantine used to detect use-after-free "
|
|
"errors. Lower value may reduce memory usage but increase the "
|
|
"chance of false negatives.")
|
|
ASAN_FLAG(int, thread_local_quarantine_size_kb, -1,
|
|
"Size (in Kb) of thread local quarantine used to detect "
|
|
"use-after-free errors. Lower value may reduce memory usage but "
|
|
"increase the chance of false negatives. It is not advised to go "
|
|
"lower than 64Kb, otherwise frequent transfers to global quarantine "
|
|
"might affect performance.")
|
|
ASAN_FLAG(int, redzone, 16,
|
|
"Minimal size (in bytes) of redzones around heap objects. "
|
|
"Requirement: redzone >= 16, is a power of two.")
|
|
ASAN_FLAG(int, max_redzone, 2048,
|
|
"Maximal size (in bytes) of redzones around heap objects.")
|
|
ASAN_FLAG(
|
|
bool, debug, false,
|
|
"If set, prints some debugging information and does additional checks.")
|
|
ASAN_FLAG(
|
|
int, report_globals, 1,
|
|
"Controls the way to handle globals (0 - don't detect buffer overflow on "
|
|
"globals, 1 - detect buffer overflow, 2 - print data about registered "
|
|
"globals).")
|
|
ASAN_FLAG(bool, check_initialization_order, false,
|
|
"If set, attempts to catch initialization order issues.")
|
|
ASAN_FLAG(
|
|
bool, replace_str, true,
|
|
"If set, uses custom wrappers and replacements for libc string functions "
|
|
"to find more errors.")
|
|
ASAN_FLAG(bool, replace_intrin, true,
|
|
"If set, uses custom wrappers for memset/memcpy/memmove intrinsics.")
|
|
ASAN_FLAG(bool, detect_stack_use_after_return, false,
|
|
"Enables stack-use-after-return checking at run-time.")
|
|
ASAN_FLAG(int, min_uar_stack_size_log, 16, // We can't do smaller anyway.
|
|
"Minimum fake stack size log.")
|
|
ASAN_FLAG(int, max_uar_stack_size_log,
|
|
20, // 1Mb per size class, i.e. ~11Mb per thread
|
|
"Maximum fake stack size log.")
|
|
ASAN_FLAG(bool, uar_noreserve, false,
|
|
"Use mmap with 'noreserve' flag to allocate fake stack.")
|
|
ASAN_FLAG(
|
|
int, max_malloc_fill_size, 0x1000, // By default, fill only the first 4K.
|
|
"ASan allocator flag. max_malloc_fill_size is the maximal amount of "
|
|
"bytes that will be filled with malloc_fill_byte on malloc.")
|
|
ASAN_FLAG(
|
|
int, max_free_fill_size, 0,
|
|
"ASan allocator flag. max_free_fill_size is the maximal amount of "
|
|
"bytes that will be filled with free_fill_byte during free.")
|
|
ASAN_FLAG(int, malloc_fill_byte, 0xbe,
|
|
"Value used to fill the newly allocated memory.")
|
|
ASAN_FLAG(int, free_fill_byte, 0x55,
|
|
"Value used to fill deallocated memory.")
|
|
ASAN_FLAG(bool, allow_user_poisoning, true,
|
|
"If set, user may manually mark memory regions as poisoned or "
|
|
"unpoisoned.")
|
|
ASAN_FLAG(
|
|
int, sleep_before_dying, 0,
|
|
"Number of seconds to sleep between printing an error report and "
|
|
"terminating the program. Useful for debugging purposes (e.g. when one "
|
|
"needs to attach gdb).")
|
|
ASAN_FLAG(
|
|
int, sleep_after_init, 0,
|
|
"Number of seconds to sleep after AddressSanitizer is initialized. "
|
|
"Useful for debugging purposes (e.g. when one needs to attach gdb).")
|
|
ASAN_FLAG(bool, check_malloc_usable_size, true,
|
|
"Allows the users to work around the bug in Nvidia drivers prior to "
|
|
"295.*.")
|
|
ASAN_FLAG(bool, unmap_shadow_on_exit, false,
|
|
"If set, explicitly unmaps the (huge) shadow at exit.")
|
|
ASAN_FLAG(bool, protect_shadow_gap, true, "If set, mprotect the shadow gap")
|
|
ASAN_FLAG(bool, print_stats, false,
|
|
"Print various statistics after printing an error message or if "
|
|
"atexit=1.")
|
|
ASAN_FLAG(bool, print_legend, true, "Print the legend for the shadow bytes.")
|
|
ASAN_FLAG(bool, print_scariness, false,
|
|
"Print the scariness score. Experimental.")
|
|
ASAN_FLAG(bool, atexit, false,
|
|
"If set, prints ASan exit stats even after program terminates "
|
|
"successfully.")
|
|
ASAN_FLAG(
|
|
bool, print_full_thread_history, true,
|
|
"If set, prints thread creation stacks for the threads involved in the "
|
|
"report and their ancestors up to the main thread.")
|
|
ASAN_FLAG(
|
|
bool, poison_heap, true,
|
|
"Poison (or not) the heap memory on [de]allocation. Zero value is useful "
|
|
"for benchmarking the allocator or instrumentator.")
|
|
ASAN_FLAG(bool, poison_partial, true,
|
|
"If true, poison partially addressable 8-byte aligned words "
|
|
"(default=true). This flag affects heap and global buffers, but not "
|
|
"stack buffers.")
|
|
ASAN_FLAG(bool, poison_array_cookie, true,
|
|
"Poison (or not) the array cookie after operator new[].")
|
|
|
|
// Turn off alloc/dealloc mismatch checker on Mac and Windows for now.
|
|
// https://github.com/google/sanitizers/issues/131
|
|
// https://github.com/google/sanitizers/issues/309
|
|
// TODO(glider,timurrrr): Fix known issues and enable this back.
|
|
ASAN_FLAG(bool, alloc_dealloc_mismatch,
|
|
!SANITIZER_MAC && !SANITIZER_WINDOWS && !SANITIZER_ANDROID,
|
|
"Report errors on malloc/delete, new/free, new/delete[], etc.")
|
|
|
|
ASAN_FLAG(bool, new_delete_type_mismatch, true,
|
|
"Report errors on mismatch between size of new and delete.")
|
|
ASAN_FLAG(
|
|
bool, strict_init_order, false,
|
|
"If true, assume that dynamic initializers can never access globals from "
|
|
"other modules, even if the latter are already initialized.")
|
|
ASAN_FLAG(
|
|
bool, start_deactivated, false,
|
|
"If true, ASan tweaks a bunch of other flags (quarantine, redzone, heap "
|
|
"poisoning) to reduce memory consumption as much as possible, and "
|
|
"restores them to original values when the first instrumented module is "
|
|
"loaded into the process. This is mainly intended to be used on "
|
|
"Android. ")
|
|
ASAN_FLAG(
|
|
int, detect_invalid_pointer_pairs, 0,
|
|
"If non-zero, try to detect operations like <, <=, >, >= and - on "
|
|
"invalid pointer pairs (e.g. when pointers belong to different objects). "
|
|
"The bigger the value the harder we try.")
|
|
ASAN_FLAG(
|
|
bool, detect_container_overflow, true,
|
|
"If true, honor the container overflow annotations. See "
|
|
"https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow")
|
|
ASAN_FLAG(int, detect_odr_violation, 2,
|
|
"If >=2, detect violation of One-Definition-Rule (ODR); "
|
|
"If ==1, detect ODR-violation only if the two variables "
|
|
"have different sizes")
|
|
ASAN_FLAG(const char *, suppressions, "", "Suppressions file name.")
|
|
ASAN_FLAG(bool, halt_on_error, true,
|
|
"Crash the program after printing the first error report "
|
|
"(WARNING: USE AT YOUR OWN RISK!)")
|
|
ASAN_FLAG(bool, use_odr_indicator, false,
|
|
"Use special ODR indicator symbol for ODR violation detection")
|
|
ASAN_FLAG(bool, allocator_frees_and_returns_null_on_realloc_zero, true,
|
|
"realloc(p, 0) is equivalent to free(p) by default (Same as the "
|
|
"POSIX standard). If set to false, realloc(p, 0) will return a "
|
|
"pointer to an allocated space which can not be used.")
|
|
ASAN_FLAG(bool, verify_asan_link_order, true,
|
|
"Check position of ASan runtime in library list (needs to be disabled"
|
|
" when other library has to be preloaded system-wide)")
|