| //===-- asan_stats.cc -----------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // 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. |
| // |
| // Code related to statistics collected by AddressSanitizer. |
| //===----------------------------------------------------------------------===// |
| #include "asan_interceptors.h" |
| #include "asan_internal.h" |
| #include "asan_lock.h" |
| #include "asan_stats.h" |
| #include "asan_thread_registry.h" |
| #include "sanitizer/asan_interface.h" |
| |
| namespace __asan { |
| |
| AsanStats::AsanStats() { |
| CHECK(REAL(memset) != 0); |
| REAL(memset)(this, 0, sizeof(AsanStats)); |
| } |
| |
| static void PrintMallocStatsArray(const char *prefix, |
| uptr (&array)[kNumberOfSizeClasses]) { |
| Printf("%s", prefix); |
| for (uptr i = 0; i < kNumberOfSizeClasses; i++) { |
| if (!array[i]) continue; |
| Printf("%zu:%zu; ", i, array[i]); |
| } |
| Printf("\n"); |
| } |
| |
| void AsanStats::Print() { |
| Printf("Stats: %zuM malloced (%zuM for red zones) by %zu calls\n", |
| malloced>>20, malloced_redzones>>20, mallocs); |
| Printf("Stats: %zuM realloced by %zu calls\n", realloced>>20, reallocs); |
| Printf("Stats: %zuM freed by %zu calls\n", freed>>20, frees); |
| Printf("Stats: %zuM really freed by %zu calls\n", |
| really_freed>>20, real_frees); |
| Printf("Stats: %zuM (%zu full pages) mmaped in %zu calls\n", |
| mmaped>>20, mmaped / kPageSize, mmaps); |
| |
| PrintMallocStatsArray(" mmaps by size class: ", mmaped_by_size); |
| PrintMallocStatsArray(" mallocs by size class: ", malloced_by_size); |
| PrintMallocStatsArray(" frees by size class: ", freed_by_size); |
| PrintMallocStatsArray(" rfrees by size class: ", really_freed_by_size); |
| Printf("Stats: malloc large: %zu small slow: %zu\n", |
| malloc_large, malloc_small_slow); |
| } |
| |
| static AsanLock print_lock(LINKER_INITIALIZED); |
| |
| static void PrintAccumulatedStats() { |
| AsanStats stats = asanThreadRegistry().GetAccumulatedStats(); |
| // Use lock to keep reports from mixing up. |
| ScopedLock lock(&print_lock); |
| stats.Print(); |
| } |
| |
| } // namespace __asan |
| |
| // ---------------------- Interface ---------------- {{{1 |
| using namespace __asan; // NOLINT |
| |
| uptr __asan_get_current_allocated_bytes() { |
| return asanThreadRegistry().GetCurrentAllocatedBytes(); |
| } |
| |
| uptr __asan_get_heap_size() { |
| return asanThreadRegistry().GetHeapSize(); |
| } |
| |
| uptr __asan_get_free_bytes() { |
| return asanThreadRegistry().GetFreeBytes(); |
| } |
| |
| uptr __asan_get_unmapped_bytes() { |
| return 0; |
| } |
| |
| void __asan_print_accumulated_stats() { |
| PrintAccumulatedStats(); |
| } |