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[memprof] Move allocator base to avoid conflict with high-entropy ASLR #85834

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Merged
merged 2 commits into from
Mar 20, 2024
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[memprof] Move allocator base to avoid conflict with high-entropy ASLR #85834

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5e94620
[memprof] Move allocator base to avoid conflict with high-entropy ASLR
thurstond Mar 19, 2024
95b8b26
Keep the old allocator location for the Fruitman, just in case
thurstond Mar 19, 2024
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4 changes: 4 additions & 0 deletions compiler-rt/lib/memprof/memprof_allocator.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,11 @@ struct MemprofMapUnmapCallback {
void OnUnmap(uptr p, uptr size) const;
};

#if SANITIZER_APPLE
constexpr uptr kAllocatorSpace = 0x600000000000ULL;
#else
constexpr uptr kAllocatorSpace = 0x500000000000ULL;
#endif
constexpr uptr kAllocatorSize = 0x40000000000ULL; // 4T.
typedef DefaultSizeClassMap SizeClassMap;
template <typename AddressSpaceViewTy>
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