LLVM  14.0.0git
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llvm::orc::ObjectLinkingLayerJITLinkContext Class Referencefinal
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Public Member Functions

 ObjectLinkingLayerJITLinkContext (ObjectLinkingLayer &Layer, std::unique_ptr< MaterializationResponsibility > MR, std::unique_ptr< MemoryBuffer > ObjBuffer)
 
 ~ObjectLinkingLayerJITLinkContext ()
 
JITLinkMemoryManagergetMemoryManager () override
 Return the MemoryManager to be used for this link. More...
 
void notifyMaterializing (LinkGraph &G)
 
void notifyFailed (Error Err) override
 Notify this context that linking failed. More...
 
void lookup (const LookupMap &Symbols, std::unique_ptr< JITLinkAsyncLookupContinuation > LC) override
 Called by JITLink to resolve external symbols. More...
 
Error notifyResolved (LinkGraph &G) override
 Called by JITLink once all defined symbols in the graph have been assigned their final memory locations in the target process. More...
 
void notifyFinalized (JITLinkMemoryManager::FinalizedAlloc A) override
 Called by JITLink to notify the context that the object has been finalized (i.e. More...
 
LinkGraphPassFunction getMarkLivePass (const Triple &TT) const override
 Returns the mark-live pass to be used for this link. More...
 
Error modifyPassConfig (LinkGraph &LG, PassConfiguration &Config) override
 Called by JITLink to modify the pass pipeline prior to linking. More...
 

Additional Inherited Members

Detailed Description

Definition at line 129 of file ObjectLinkingLayer.cpp.

Constructor & Destructor Documentation

◆ ObjectLinkingLayerJITLinkContext()

llvm::orc::ObjectLinkingLayerJITLinkContext::ObjectLinkingLayerJITLinkContext ( ObjectLinkingLayer Layer,
std::unique_ptr< MaterializationResponsibility MR,
std::unique_ptr< MemoryBuffer ObjBuffer 
)
inline

Definition at line 131 of file ObjectLinkingLayer.cpp.

◆ ~ObjectLinkingLayerJITLinkContext()

llvm::orc::ObjectLinkingLayerJITLinkContext::~ObjectLinkingLayerJITLinkContext ( )
inline

Definition at line 138 of file ObjectLinkingLayer.cpp.

References move.

Member Function Documentation

◆ getMarkLivePass()

LinkGraphPassFunction llvm::orc::ObjectLinkingLayerJITLinkContext::getMarkLivePass ( const Triple TT) const
inlineoverridevirtual

Returns the mark-live pass to be used for this link.

If no pass is returned (the default) then the target-specific linker implementation will choose a conservative default (usually marking all symbols live). This function is only called if shouldAddDefaultTargetPasses returns true, otherwise the JITContext is responsible for adding a mark-live pass in modifyPassConfig.

Reimplemented from llvm::jitlink::JITLinkContext.

Definition at line 322 of file ObjectLinkingLayer.cpp.

References G.

◆ getMemoryManager()

JITLinkMemoryManager& llvm::orc::ObjectLinkingLayerJITLinkContext::getMemoryManager ( )
inlineoverridevirtual

Return the MemoryManager to be used for this link.

Implements llvm::jitlink::JITLinkContext.

Definition at line 145 of file ObjectLinkingLayer.cpp.

◆ lookup()

void llvm::orc::ObjectLinkingLayerJITLinkContext::lookup ( const LookupMap Symbols,
std::unique_ptr< JITLinkAsyncLookupContinuation LC 
)
inlineoverridevirtual

Called by JITLink to resolve external symbols.

This method is passed a lookup continutation which it must call with a result to continue the linking process.

Implements llvm::jitlink::JITLinkContext.

Definition at line 161 of file ObjectLinkingLayer.cpp.

References llvm::orc::SymbolLookupSet::add(), llvm::AArch64CC::LO, move, llvm::orc::RequiredSymbol, llvm::jitlink::RequiredSymbol, llvm::Reloc::Static, llvm::orc::WeaklyReferencedSymbol, and llvm::jitlink::WeaklyReferencedSymbol.

◆ modifyPassConfig()

Error llvm::orc::ObjectLinkingLayerJITLinkContext::modifyPassConfig ( LinkGraph G,
PassConfiguration Config 
)
inlineoverridevirtual

Called by JITLink to modify the pass pipeline prior to linking.

The default version performs no modification.

Reimplemented from llvm::jitlink::JITLinkContext.

Definition at line 326 of file ObjectLinkingLayer.cpp.

References G, llvm::jitlink::PassConfiguration::PostPrunePasses, llvm::jitlink::PassConfiguration::PrePrunePasses, and llvm::Error::success().

◆ notifyFailed()

void llvm::orc::ObjectLinkingLayerJITLinkContext::notifyFailed ( Error  Err)
inlineoverridevirtual

Notify this context that linking failed.

Called by JITLink if linking cannot be completed.

Implements llvm::jitlink::JITLinkContext.

Definition at line 154 of file ObjectLinkingLayer.cpp.

◆ notifyFinalized()

void llvm::orc::ObjectLinkingLayerJITLinkContext::notifyFinalized ( JITLinkMemoryManager::FinalizedAlloc  Alloc)
inlineoverridevirtual

Called by JITLink to notify the context that the object has been finalized (i.e.

emitted to memory and memory permissions set). If all of this objects dependencies have also been finalized then the code is ready to run.

Implements llvm::jitlink::JITLinkContext.

Definition at line 310 of file ObjectLinkingLayer.cpp.

◆ notifyMaterializing()

void llvm::orc::ObjectLinkingLayerJITLinkContext::notifyMaterializing ( LinkGraph G)
inline

Definition at line 147 of file ObjectLinkingLayer.cpp.

References G, and P.

◆ notifyResolved()

Error llvm::orc::ObjectLinkingLayerJITLinkContext::notifyResolved ( LinkGraph G)
inlineoverridevirtual

Called by JITLink once all defined symbols in the graph have been assigned their final memory locations in the target process.

At this point the LinkGraph can be inspected to build a symbol table, however the block content will not generally have been copied to the target location yet.

If the client detects an error in the LinkGraph state (e.g. unexpected or missing symbols) they may return an error here. The error will be propagated to notifyFailed and the linker will bail out.

Implements llvm::jitlink::JITLinkContext.

Definition at line 210 of file ObjectLinkingLayer.cpp.

References llvm::JITSymbolFlags::Absolute, assert(), llvm::JITSymbolFlags::Callable, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::count(), llvm::jitlink::Default, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::empty(), llvm::JITSymbolFlags::Exported, G, llvm::jitlink::Local, llvm::JITSymbolFlags::Weak, and llvm::jitlink::Weak.


The documentation for this class was generated from the following file: