[compiler-rt] [sanitizer_common][tsan] Improve message for unsupported vm config on Apple platforms (PR #158665)

[Dan Blackwell via llvm-commits]

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@@ -1298,6 +1298,29 @@ uptr FindAvailableMemoryRange(uptr size, uptr alignment, uptr left_padding,
   return 0;
 }
 
+// Returns true if the address is definitely mapped, and false if it is not
+// mapped or could not be determined.
+bool IsAddressInMappedRegion(uptr addr) {
+  mach_vm_size_t vmsize = 0;
+  natural_t depth = 0;
+  vm_region_submap_short_info_data_64_t vminfo;
+  mach_msg_type_number_t count = VM_REGION_SUBMAP_SHORT_INFO_COUNT_64;
+  mach_vm_address_t address = addr;
+
+  kern_return_t kr =
+      mach_vm_region_recurse(mach_task_self(), &address, &vmsize, &depth,
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DanBlackwell wrote:

Ok, sounds like a good reason to stick with recurse.

https://github.com/llvm/llvm-project/pull/158665