libsanitizer/sanitizer_common/sanitizer_allocator_secondary.h

16 // Fixed array to store LargeMmapAllocator chunks list, limited to 32K total
17 // allocated chunks. To be used in memory constrained or not memory hungry cases
28 // Much less restricted LargeMmapAllocator chunks list (comparing to
29 // PtrArrayStatic). Backed by mmaped memory region and can hold up to 1M chunks.
66 // This class can (de)allocate only large chunks of memory using mmap/unmap.
186     Header *const *chunks = AddressSpaceView::Load(chunks_, n_chunks_);
189       uptr ch = reinterpret_cast<uptr>(chunks[i]);
209     Header **chunks = AddressSpaceView::LoadWritable(chunks_, n_chunks_);
210     Sort(reinterpret_cast<uptr *>(chunks), n_chunks_);
212       AddressSpaceView::LoadWritable(chunks[i])->chunk_idx = i;
224     Header *const *chunks = AddressSpaceView::Load(chunks_, n_chunks_);
225     auto min_mmap_ = reinterpret_cast<uptr>(chunks[0]);
226     auto max_mmap_ = reinterpret_cast<uptr>(chunks[n - 1]) +
227                      AddressSpaceView::Load(chunks[n - 1])->map_size;
235       if (p < reinterpret_cast<uptr>(chunks[mid]))
236         end = mid - 1;  // We are not interested in chunks[mid].
238         beg = mid;  // chunks[mid] may still be what we want.
243       // There are 2 chunks left, choose one.
244       if (p >= reinterpret_cast<uptr>(chunks[end]))
248     const Header *h = AddressSpaceView::Load(chunks[beg]);
249     Header *h_ptr = chunks[beg];
274   // Iterate over all existing chunks.
278     const Header *const *chunks = AddressSpaceView::Load(chunks_, n_chunks_);
280       const Header *t = chunks[i];
283       CHECK_EQ(chunks[i], t);
284       CHECK_EQ(AddressSpaceView::Load(chunks[i])->chunk_idx, i);