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Disable resilience for modules imported by the MemoryBuffer loader.

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The MemoryBuffer loader is used by LLDB during debugging to import binary Swift
modules from .swift_ast sections. Modules imported from .swift_ast sections are
never produced from textual interfaces. By disabling resilience the expression
evaluator in the debugger can directly access private members.

rdar://79462915
This commit is contained in:
Adrian Prantl
2021-08-24 15:52:10 -07:00
parent 86a715d70e
commit e754f5a6c4
6 changed files with 48 additions and 19 deletions
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13
include/swift/Serialization/SerializedModuleLoader.h
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@@ -261,9 +261,11 @@ class MemoryBufferSerializedModuleLoader : public SerializedModuleLoaderBase {
MemoryBufferSerializedModuleLoader(ASTContext &ctx,
DependencyTracker *tracker,
ModuleLoadingMode loadMode,
bool IgnoreSwiftSourceInfo)
bool IgnoreSwiftSourceInfo,
bool BypassResilience)
: SerializedModuleLoaderBase(ctx, tracker, loadMode,
IgnoreSwiftSourceInfo) {}
IgnoreSwiftSourceInfo),
BypassResilience(BypassResilience) {}
std::error_code findModuleFilesInDirectory(
ImportPath::Element ModuleID,
@@ -279,6 +281,7 @@ class MemoryBufferSerializedModuleLoader : public SerializedModuleLoaderBase {
StringRef moduleName,
const SerializedModuleBaseName &BaseName) override;
bool BypassResilience;
public:
virtual ~MemoryBufferSerializedModuleLoader();
@@ -308,10 +311,10 @@ public:
static std::unique_ptr<MemoryBufferSerializedModuleLoader>
create(ASTContext &ctx, DependencyTracker *tracker = nullptr,
ModuleLoadingMode loadMode = ModuleLoadingMode::PreferSerialized,
bool IgnoreSwiftSourceInfo = false) {
bool IgnoreSwiftSourceInfo = false, bool BypassResilience = false) {
return std::unique_ptr<MemoryBufferSerializedModuleLoader>{
new MemoryBufferSerializedModuleLoader(ctx, tracker, loadMode,
IgnoreSwiftSourceInfo)};
new MemoryBufferSerializedModuleLoader(
ctx, tracker, loadMode, IgnoreSwiftSourceInfo, BypassResilience)};
}
};