forked from OSchip/llvm-project
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
//===- InputEvent.h ---------------------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|