template <typename Config>class MapAllocator
Defined at line 650 of file ../../third_party/scudo/src/secondary.h
Public Methods
void init (GlobalStats * S, s32 ReleaseToOsInterval)Defined at line 652 of file ../../third_party/scudo/src/secondary.h
uptr getBlockEnd (void * Ptr)Defined at line 671 of file ../../third_party/scudo/src/secondary.h
uptr getBlockSize (void * Ptr)Defined at line 676 of file ../../third_party/scudo/src/secondary.h
uptr getGuardPageSize ()Defined at line 680 of file ../../third_party/scudo/src/secondary.h
uptr getHeadersSize ()Defined at line 686 of file ../../third_party/scudo/src/secondary.h
void disable ()Defined at line 690 of file ../../third_party/scudo/src/secondary.h
void enable ()Defined at line 695 of file ../../third_party/scudo/src/secondary.h
template <typename F>void iterateOverBlocks (F Callback)Defined at line 700 of file ../../third_party/scudo/src/secondary.h
bool canCache (uptr Size)Defined at line 711 of file ../../third_party/scudo/src/secondary.h
bool setOption (Option O, sptr Value)Defined at line 713 of file ../../third_party/scudo/src/secondary.h
void releaseToOS (ReleaseToOS ReleaseType)Defined at line 715 of file ../../third_party/scudo/src/secondary.h
void disableMemoryTagging ()Defined at line 717 of file ../../third_party/scudo/src/secondary.h
void unmapTestOnly ()Defined at line 719 of file ../../third_party/scudo/src/secondary.h
void * allocate (const Options & Options, uptr Size, uptr AlignmentHint, uptr * BlockEnd, FillContentsMode FillContents)As with the Primary, the size passed to this function includes any desired
alignment, so that the frontend can align the user allocation. The hint
parameter allows us to unmap spurious memory when dealing with larger
(greater than a page) alignments on 32-bit platforms.
Due to the sparsity of address space available on those platforms, requesting
an allocation from the Secondary with a large alignment would end up wasting
VA space (even though we are not committing the whole thing), hence the need
to trim off some of the reserved space.
For allocations requested with an alignment greater than or equal to a page,
the committed memory will amount to something close to Size - AlignmentHint
(pending rounding and headers).
Defined at line 819 of file ../../third_party/scudo/src/secondary.h
void deallocate (const Options & Options, void * Ptr)Defined at line 921 of file ../../third_party/scudo/src/secondary.h
void * tryAllocateFromCache (const Options & Options, uptr Size, uptr Alignment, uptr * BlockEndPtr, FillContentsMode FillContents)Defined at line 737 of file ../../third_party/scudo/src/secondary.h
void getStats (ScopedString * Str)Defined at line 948 of file ../../third_party/scudo/src/secondary.h