================
@@ -44,9 +44,24 @@ struct DFsanMapUnmapCallback {
// duplicated as MappingDesc::ALLOCATOR in dfsan_platform.h.
#if defined(__aarch64__)
const uptr kAllocatorSpace = 0xE00000000000ULL;
+#elif defined(__s390x__)
+const uptr kAllocatorSpace = 0x440000000000ULL;
#else
const uptr kAllocatorSpace = 0x700000000000ULL;
#endif
+#if defined(__s390x__)
+const uptr kMaxAllowedMallocSize = 2UL << 30; // 2G
+
+struct AP64 { // Allocator64 parameters. Deliberately using a short name.
+ static const uptr kSpaceBeg = kAllocatorSpace;
+ static const uptr kSpaceSize = 0x020000000000; // 2T.
+ static const uptr kMetadataSize = sizeof(Metadata);
+ using SizeClassMap = DefaultSizeClassMap;
+ using MapUnmapCallback = DFsanMapUnmapCallback;
+ static const uptr kFlags = 0;
+ using AddressSpaceView = LocalAddressSpaceView;
+};
+#else
----------------
thurstond wrote:
Looks like the allocator and shadow constants are the tried-and-tested
constants from MSan?
https://github.com/llvm/llvm-project/pull/162195
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