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[lsan] ppc64: dynamically pick address range for allocator

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For ppc64 PIE, it seems that [0xa00000000000,0xc00000000000) may be occupied
which will lead to a segfault in certain kernel configurations
(clang-ppc64le-rhel). Use the `!kUsingConstantSpaceBeg` code path like Fuchsia.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D121257
This commit is contained in:
Fangrui Song 2022-03-11 20:16:17 -08:00
parent 689c3a2552
commit a53ea51dec
1 changed files with 1 additions and 4 deletions
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5
compiler-rt/lib/lsan/lsan_allocator.h
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@ -66,12 +66,9 @@ template <typename AddressSpaceView>
using PrimaryAllocatorASVT = SizeClassAllocator32<AP32<AddressSpaceView>>;
using PrimaryAllocator = PrimaryAllocatorASVT<LocalAddressSpaceView>;
#elif defined(__x86_64__) || defined(__powerpc64__) || defined(__s390x__)
# if SANITIZER_FUCHSIA
# if SANITIZER_FUCHSIA || defined(__powerpc64__)
const uptr kAllocatorSpace = ~(uptr)0;
const uptr kAllocatorSize = 0x40000000000ULL; // 4T.
# elif defined(__powerpc64__)
const uptr kAllocatorSpace = 0xa0000000000ULL;
const uptr kAllocatorSize = 0x20000000000ULL; // 2T.
#elif defined(__s390x__)
const uptr kAllocatorSpace = 0x40000000000ULL;
const uptr kAllocatorSize = 0x40000000000ULL; // 4T.