80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// -*- mode: C++; c-file-style: "cc-mode" -*-
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//*************************************************************************
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// Code available from: https://verilator.org
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//
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// Copyright 2003-2025 by Wilson Snyder. This program is free software; you
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// can redistribute it and/or modify it under the terms of either the GNU
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// Lesser General Public License Version 3 or the Perl Artistic License
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// Version 2.0.
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// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
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//
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//*************************************************************************
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// DESCRIPTION: Verilator: Emit C++ for precompiled header include
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//
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#include "V3PchAstMT.h"
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#include "V3EmitC.h"
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#include "V3EmitCBase.h"
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#include "V3File.h"
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VL_DEFINE_DEBUG_FUNCTIONS;
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//######################################################################
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// Precompiled header emitter
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class EmitCPch final : public EmitCBaseVisitorConst {
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public:
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// METHODS
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void emitPch() {
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openNewOutputHeaderFile(EmitCUtil::pchClassName(), "Precompiled header");
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puts("//\n");
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puts("// Internal details; most user sources do not need this header,\n");
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puts("// unless using verilator public meta comments.\n");
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puts("// Suggest use " + EmitCUtil::topClassName() + ".h instead.\n");
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ofp()->putsGuard();
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puts("\n");
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puts("// GCC and Clang only will precompile headers (PCH) for the first header.\n");
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puts("// So, make sure this is the one and only PCH.\n");
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puts("// If multiple module's includes are needed, use individual includes.\n");
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puts("#ifdef VL_PCH_INCLUDED\n");
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puts("# error \"Including multiple precompiled header files\"\n");
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puts("#endif\n");
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puts("#define VL_PCH_INCLUDED\n");
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puts("\n");
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puts("\n#include \"verilated.h\"\n");
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if (v3Global.dpi()) puts("#include \"verilated_dpi.h\"\n");
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puts("\n");
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puts("#include \"" + EmitCUtil::symClassName() + ".h\"\n");
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puts("#include \"" + EmitCUtil::topClassName() + ".h\"\n");
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puts("\n// Additional include files added using '--compiler-include'\n");
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for (const string& filename : v3Global.opt.compilerIncludes()) {
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puts("#include \"" + filename + "\"\n");
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}
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ofp()->putsEndGuard();
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closeOutputFile();
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}
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// VISITOR
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void visit(AstNode* nodep) { nodep->v3fatalSrc("Unused"); }
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public:
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explicit EmitCPch() { emitPch(); }
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};
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//######################################################################
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// EmitC static functions
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void V3EmitC::emitcPch() {
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UINFO(2, __FUNCTION__ << ":");
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EmitCPch{};
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}
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