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[RemoteInspection] Read ContextDescriptor from symbol if available #85878

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[RemoteInspection] Read ContextDescriptor from symbol if available #85878

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12 changes: 12 additions & 0 deletions include/swift/Remote/MetadataReader.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2674,6 +2674,18 @@ class MetadataReader {
return nullptr;
}

// Check if the Reader can provide a symbol for this descriptor, and if it
// can, use that instead.
if (auto remoteAbsolutePointer =
Reader->resolvePointerAsSymbol(descriptor.getRemoteAddress())) {
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@mikeash mikeash Dec 6, 2025

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I assume this requires an exact match, and won't provide a value if the address is some offset past a symbol?

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@augusto2112 augusto2112 Dec 6, 2025

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Yes, this requires it to be an exact match. Are you thinking of some scenario where we'd be at an offset from the symbol?

auto symbol = remoteAbsolutePointer->getSymbol();
if (!symbol.empty()) {
if (auto demangledSymbol = buildContextManglingForSymbol(symbol, dem)) {
return demangledSymbol;
}
}
}

// Read the parent descriptor.
auto parentDescriptorResult = readParentContextDescriptor(descriptor);

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