diff options
Diffstat (limited to 'lib/asan/asan_flags.h')
| -rw-r--r-- | lib/asan/asan_flags.h | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/lib/asan/asan_flags.h b/lib/asan/asan_flags.h index d7b21ea4a45f..2f3bc9051ae1 100644 --- a/lib/asan/asan_flags.h +++ b/lib/asan/asan_flags.h @@ -15,13 +15,15 @@ #ifndef ASAN_FLAGS_H #define ASAN_FLAGS_H -#include "sanitizer/common_interface_defs.h" +#include "sanitizer_common/sanitizer_internal_defs.h" -// ASan flag values can be defined in three ways: +// ASan flag values can be defined in four ways: // 1) initialized with default values at startup. -// 2) overriden from string returned by user-specified function +// 2) overriden during compilation of ASan runtime by providing +// compile definition ASAN_DEFAULT_OPTIONS. +// 3) overriden from string returned by user-specified function // __asan_default_options(). -// 3) overriden from env variable ASAN_OPTIONS. +// 4) overriden from env variable ASAN_OPTIONS. namespace __asan { @@ -30,8 +32,6 @@ struct Flags { // Lower value may reduce memory usage but increase the chance of // false negatives. int quarantine_size; - // If set, uses in-process symbolizer from common sanitizer runtime. - bool symbolize; // Verbosity level (0 - silent, 1 - a bit of output, 2+ - more output). int verbosity; // Size (in bytes) of redzones around heap objects. @@ -45,22 +45,18 @@ struct Flags { int report_globals; // If set, attempts to catch initialization order issues. bool check_initialization_order; - // Max number of stack frames kept for each allocation/deallocation. - int malloc_context_size; // If set, uses custom wrappers and replacements for libc string functions // to find more errors. bool replace_str; // If set, uses custom wrappers for memset/memcpy/memmove intinsics. bool replace_intrin; - // Used on Mac only. See comments in asan_mac.cc and asan_malloc_mac.cc. - bool replace_cfallocator; // Used on Mac only. bool mac_ignore_invalid_free; - // ASan allocator flag. See asan_allocator.cc. + // ASan allocator flag. bool use_fake_stack; - // ASan allocator flag. Sets the maximal size of allocation request - // that would return memory filled with zero bytes. - int max_malloc_fill_size; + // ASan allocator flag. max_malloc_fill_size is the maximal amount of bytes + // that will be filled with malloc_fill_byte on malloc. + int max_malloc_fill_size, malloc_fill_byte; // Override exit status if something was reported. int exitcode; // If set, user may manually mark memory regions as poisoned or unpoisoned. @@ -71,6 +67,8 @@ struct Flags { int sleep_before_dying; // If set, registers ASan custom segv handler. bool handle_segv; + // If set, allows user register segv handler even if ASan registers one. + bool allow_user_segv_handler; // If set, uses alternate stack for signal handling. bool use_sigaltstack; // Allow the users to work around the bug in Nvidia drivers prior to 295.*. @@ -79,6 +77,10 @@ struct Flags { bool unmap_shadow_on_exit; // If set, calls abort() instead of _exit() after printing an error report. bool abort_on_error; + // Print various statistics after printing an error message or if atexit=1. + bool print_stats; + // Print the legend for the shadow bytes. + bool print_legend; // If set, prints ASan exit stats even after program terminates successfully. bool atexit; // By default, disable core dumper on 64-bit - it makes little sense @@ -87,18 +89,12 @@ struct Flags { // Allow the tool to re-exec the program. This may interfere badly with the // debugger. bool allow_reexec; - // Strips this prefix from file paths in error reports. - const char *strip_path_prefix; // If set, prints not only thread creation stacks for threads in error report, // but also thread creation stacks for threads that created those threads, // etc. up to main thread. bool print_full_thread_history; // ASan will write logs to "log_path.pid" instead of stderr. const char *log_path; - // Use fast (frame-pointer-based) unwinder on fatal errors (if available). - bool fast_unwind_on_fatal; - // Use fast (frame-pointer-based) unwinder on malloc/free (if available). - bool fast_unwind_on_malloc; // Poison (or not) the heap memory on [de]allocation. Zero value is useful // for benchmarking the allocator or instrumentator. bool poison_heap; @@ -106,9 +102,20 @@ struct Flags { bool alloc_dealloc_mismatch; // Use stack depot instead of storing stacks in the redzones. bool use_stack_depot; + // If true, assume that memcmp(p1, p2, n) always reads n bytes before + // comparing p1 and p2. + bool strict_memcmp; + // If true, assume that dynamic initializers can never access globals from + // other modules, even if the latter are already initialized. + bool strict_init_order; + // Invoke LeakSanitizer at process exit. + bool detect_leaks; }; -Flags *flags(); +extern Flags asan_flags_dont_use_directly; +inline Flags *flags() { + return &asan_flags_dont_use_directly; +} void InitializeFlags(Flags *f, const char *env); } // namespace __asan |