[RemoteInspection] Change RemoteAbsolutePointer (NFC) #82325
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This patch changes RemoteAbsolutePointer to store both the symbol and the resolved address. This allows us to retire some ugly workarounds to deal with non-symbolic addresses and it fixes code paths that would need these workarounds, but haven't implemented them yet (i.e., the pack shape handling in the symbolicReferenceResolver in MetadatyaReader. Addresses parts of rdar://146273066. rdar://153687085
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test with swiftlang/llvm-project#10865 |
augusto2112
approved these changes
Jun 18, 2025
| @@ -66,32 +66,26 @@ class RemoteAbsolutePointer { | |||
| /// The symbol name that the pointer refers to. Empty if the value is absolute. | |||
| std::string Symbol; | |||
| /// The offset from the symbol, or the resolved remote address if \c Symbol is empty. | |||
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Update this comment to reflect the new variable?
| @@ -1871,7 +1871,7 @@ class TypeRefBuilder { | |||
| if (auto symbol = OpaquePointerReader( | |||
| remote::RemoteAddress(adjustedProtocolDescriptorTarget), | |||
| PointerSize)) { | |||
| if (!symbol->getSymbol().empty()) { | |||
| if (!symbol->getSymbol().empty() && symbol->getOffset() == 0) { | |||
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Why must the offset be 0 in this case?
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This patch changes RemoteAbsolutePointer to store both the symbol and the resolved address. This allows us to retire some ugly workarounds to deal with non-symbolic addresses and it fixes code paths that would need these workarounds, but haven't implemented them yet (i.e., the pack shape handling in the symbolicReferenceResolver in MetadataReader.
Addresses parts of rdar://146273066.
rdar://153687085