f52fc591fa
Introducing a plugin API and a simple HelloWorld Plugin example. This patch adds the `-load` and `-plugin` flags to frontend driver and the code around using custom frontend actions from within a plugin shared library object. It also adds to the Driver-help test to check the help option with the updated driver flags. Additionally, the patch creates a plugin-example test to check the HelloWorld plugin example runs correctly. As part of this, a new CMake flag (`FLANG_BUILD_EXAMPLES`) is added to allow the example to be built and for the test to run. This Plugin API has only been tested on Linux. Reviewed By: awarzynski Differential Revision: https://reviews.llvm.org/D106137
26 lines
942 B
C++
26 lines
942 B
C++
//===-- HelloWorldPlugin.cpp ----------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Basic example Flang plugin which simply prints a Hello World statement
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//
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//===----------------------------------------------------------------------===//
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#include "flang/Frontend/FrontendActions.h"
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#include "flang/Frontend/FrontendPluginRegistry.h"
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using namespace Fortran::frontend;
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class HelloWorldFlangPlugin : public PluginParseTreeAction {
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void ExecuteAction() override {
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llvm::outs() << "Hello World from your new Flang plugin\n";
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}
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};
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static FrontendPluginRegistry::Add<HelloWorldFlangPlugin> X(
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"-hello-world", "Hello World Plugin example");
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