| // Test thread_local_quarantine_size_kb |
| |
| // RUN: %clangxx_asan %s -o %t |
| // RUN: %env_asan_opts=thread_local_quarantine_size_kb=256:verbosity=1 %run %t 2>&1 | \ |
| // RUN: FileCheck %s --check-prefix=CHECK-VALUE |
| // RUN: %env_asan_opts=thread_local_quarantine_size_kb=64:quarantine_size_mb=64 %run %t 2>&1 | \ |
| // RUN: FileCheck %s --allow-empty --check-prefix=CHECK-SMALL-LOCAL-CACHE-SMALL-OVERHEAD |
| // RUN: %env_asan_opts=thread_local_quarantine_size_kb=0:quarantine_size_mb=0 %run %t 2>&1 | \ |
| // RUN: FileCheck %s --check-prefix=CHECK-QUARANTINE-DISABLED |
| // RUN: %env_asan_opts=thread_local_quarantine_size_kb=0:quarantine_size_mb=64 not %run %t 2>&1 | \ |
| // RUN: FileCheck %s --check-prefix=CHECK-FOR-PARAMETER-ERROR |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sanitizer/allocator_interface.h> |
| |
| // The idea is allocate a lot of small blocks, totaling 5Mb of user memory |
| // total, and verify that quarantine does not incur too much memory overhead. |
| // There's always an overhead for red zones, shadow memory and such, but |
| // quarantine accounting should not significantly contribute to that. |
| static const int kNumAllocs = 20000; |
| static const int kAllocSize = 256; |
| static const size_t kHeapSizeLimit = 12 << 20; |
| |
| int main() { |
| size_t old_heap_size = __sanitizer_get_heap_size(); |
| for (int i = 0; i < kNumAllocs; i++) { |
| char *g = new char[kAllocSize]; |
| memset(g, -1, kAllocSize); |
| delete [] (g); |
| } |
| size_t new_heap_size = __sanitizer_get_heap_size(); |
| fprintf(stderr, "heap size: new: %zd old: %zd\n", new_heap_size, |
| old_heap_size); |
| if (new_heap_size - old_heap_size > kHeapSizeLimit) |
| fprintf(stderr, "Heap size limit exceeded"); |
| } |
| |
| // CHECK-VALUE: thread_local_quarantine_size_kb=256K |
| // CHECK-SMALL-LOCAL-CACHE-SMALL-OVERHEAD-NOT: Heap size limit exceeded |
| // CHECK-QUARANTINE-DISABLED-NOT: Heap size limit exceeded |
| // CHECK-FOR-PARAMETER-ERROR: thread_local_quarantine_size_kb can be set to 0 only when quarantine_size_mb is set to 0 |
