template <typename Config>class MapAllocator
Defined at line 660 of file ../../third_party/scudo/src/secondary.h
Public Methods
void init (GlobalStats * S, s32 ReleaseToOsInterval)Defined at line 662 of file ../../third_party/scudo/src/secondary.h
uptr getBlockEnd (void * Ptr)Defined at line 681 of file ../../third_party/scudo/src/secondary.h
uptr getBlockSize (void * Ptr)Defined at line 686 of file ../../third_party/scudo/src/secondary.h
uptr getGuardPageSize ()Defined at line 690 of file ../../third_party/scudo/src/secondary.h
uptr getHeadersSize ()Defined at line 696 of file ../../third_party/scudo/src/secondary.h
void disable ()Defined at line 700 of file ../../third_party/scudo/src/secondary.h
void enable ()Defined at line 705 of file ../../third_party/scudo/src/secondary.h
template <typename F>void iterateOverBlocks (F Callback)Defined at line 710 of file ../../third_party/scudo/src/secondary.h
bool canCache (uptr Size)Defined at line 721 of file ../../third_party/scudo/src/secondary.h
bool setOption (Option O, sptr Value)Defined at line 723 of file ../../third_party/scudo/src/secondary.h
void releaseToOS (ReleaseToOS ReleaseType)Defined at line 725 of file ../../third_party/scudo/src/secondary.h
void disableMemoryTagging ()Defined at line 727 of file ../../third_party/scudo/src/secondary.h
void unmapTestOnly ()Defined at line 729 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 827 of file ../../third_party/scudo/src/secondary.h
void deallocate (const Options & Options, void * Ptr)Defined at line 928 of file ../../third_party/scudo/src/secondary.h
void * tryAllocateFromCache (const Options & Options, uptr Size, uptr Alignment, uptr * BlockEndPtr, FillContentsMode FillContents)Defined at line 747 of file ../../third_party/scudo/src/secondary.h
void getStats (ScopedString * Str)Defined at line 955 of file ../../third_party/scudo/src/secondary.h