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8357155: [asan] ZGC does not work (x86_64 and ppc64) #1908

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8357155: [asan] ZGC does not work (x86_64 and ppc64) #1908

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5 changes: 5 additions & 0 deletions src/hotspot/cpu/ppc/gc/z/zAddress_ppc.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -94,10 +94,15 @@ static size_t probe_valid_max_address_bit() {
size_t ZPlatformAddressOffsetBits() {
const static size_t valid_max_address_offset_bits = probe_valid_max_address_bit() + 1;
const size_t max_address_offset_bits = valid_max_address_offset_bits - 3;
#ifdef ADDRESS_SANITIZER
// The max supported value is 44 because of other internal data structures.
return MIN2(valid_max_address_offset_bits, (size_t)44);
#else
const size_t min_address_offset_bits = max_address_offset_bits - 2;
const size_t address_offset = round_up_power_of_2(MaxHeapSize * ZVirtualToPhysicalRatio);
const size_t address_offset_bits = log2i_exact(address_offset);
return clamp(address_offset_bits, min_address_offset_bits, max_address_offset_bits);
#endif
}

size_t ZPlatformAddressHeapBaseShift() {
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4 changes: 4 additions & 0 deletions src/hotspot/cpu/x86/gc/z/zAddress_x86.cpp
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Expand Up @@ -31,11 +31,15 @@
size_t ZPointerLoadShift;

size_t ZPlatformAddressOffsetBits() {
#ifdef ADDRESS_SANITIZER
return 44;
#else
const size_t min_address_offset_bits = 42; // 4TB
const size_t max_address_offset_bits = 44; // 16TB
const size_t address_offset = round_up_power_of_2(MaxHeapSize * ZVirtualToPhysicalRatio);
const size_t address_offset_bits = log2i_exact(address_offset);
return clamp(address_offset_bits, min_address_offset_bits, max_address_offset_bits);
#endif
}

size_t ZPlatformAddressHeapBaseShift() {
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