gcc/libsanitizer/asan/asan_flags.inc
Jakub Jelinek 5d3805fca3 ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch builtins...
* 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
2017-10-19 13:23:59 +02:00

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)")