forked from OSchip/llvm-project
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
//===- InputEvent.h ---------------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Linker
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Wasm events are features that suspend the current execution and transfer the
|
|
// control flow to a corresponding handler. Currently the only supported event
|
|
// kind is exceptions.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLD_WASM_INPUT_EVENT_H
|
|
#define LLD_WASM_INPUT_EVENT_H
|
|
|
|
#include "Config.h"
|
|
#include "InputFiles.h"
|
|
#include "WriterUtils.h"
|
|
#include "lld/Common/ErrorHandler.h"
|
|
#include "llvm/Object/Wasm.h"
|
|
|
|
namespace lld {
|
|
namespace wasm {
|
|
|
|
// Represents a single Wasm Event within an input file. These are combined to
|
|
// form the final EVENTS section.
|
|
class InputEvent {
|
|
public:
|
|
InputEvent(const WasmSignature &S, const WasmEvent &E, ObjFile *F)
|
|
: File(F), Event(E), Signature(S), Live(!Config->GcSections) {}
|
|
|
|
StringRef getName() const { return Event.SymbolName; }
|
|
const WasmEventType &getType() const { return Event.Type; }
|
|
|
|
uint32_t getEventIndex() const { return EventIndex.getValue(); }
|
|
bool hasEventIndex() const { return EventIndex.hasValue(); }
|
|
void setEventIndex(uint32_t Index) {
|
|
assert(!hasEventIndex());
|
|
EventIndex = Index;
|
|
}
|
|
|
|
ObjFile *File;
|
|
WasmEvent Event;
|
|
const WasmSignature &Signature;
|
|
|
|
bool Live = false;
|
|
|
|
protected:
|
|
llvm::Optional<uint32_t> EventIndex;
|
|
};
|
|
|
|
} // namespace wasm
|
|
|
|
inline std::string toString(const wasm::InputEvent *E) {
|
|
return (toString(E->File) + ":(" + E->getName() + ")").str();
|
|
}
|
|
|
|
} // namespace lld
|
|
|
|
#endif // LLD_WASM_INPUT_EVENT_H
|